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Koutrouli A, Machla F, Arapostathis K, Kokoti M, Bakopoulou A. "Biological responses of two calcium-silicate-based cements on a tissue-engineered 3D organotypic deciduous pulp analogue". Dent Mater 2024:S0109-5641(24)00041-1. [PMID: 38431482 DOI: 10.1016/j.dental.2024.02.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 03/05/2024]
Abstract
OBJECTIVES The biological responses of MTA and Biodentine™ has been assessed on a three-dimensional, tissue-engineered organotypic deciduous pulp analogue. METHODS Human endothelial (HUVEC) and dental mesenchymal stem cells (SHED) at a ratio of 3:1, were incorporated into a collagen I/fibrin hydrogel; succeeding Biodentine™ and MTA cylindrical specimens were placed in direct contact with the pulp analogue 48 h later. Cell viability/proliferation and morphology were evaluated through live/dead staining, MTT assay and Scanning Electron Microscopy (SEM), and expression of angiogenic, odontogenic markers through real time PCR. RESULTS Viable cells dominated at day 3 after treatment presenting typical morphology, firmly attached within the hydrogel structures, as shown by live/dead staining and SEM images. MTT assay at day 1 presented a significant increase of cell proliferation in Biodentine™ group. Real-time PCR showed significant upregulation of odontogenic markers DSPP, BMP-2 (day 3,6), RUNX2, ALP (day 3) in contact with Biodentine™ compared to MTA and the control, whereas MTA promoted significant upregulation of DSPP, BMP-2, RUNX2, Osterix (day 3) and ALP (day 6) compared to the control. MSX1 presented downregulation in both experimental groups. Expression of angiogenic markers VEGFa and ANGPT-1 at day 3 was significantly upregulated in contact with Biodentine™ and MTA respectively, while the receptors VEGFR1, VEGFR2 and Tie-2, as well as PECAM-1 were downregulated. SIGNIFICANCE Both calcium silicate-based materials are biocompatible and exert positive angiogenic and odontogenic effects, although Biodentine™ during the first days of culture, seems to induce higher cell proliferation and provoke a more profound odontogenic and angiogenic response from SHED.
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Affiliation(s)
- A Koutrouli
- Department of Paediatric Dentistry, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - F Machla
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - K Arapostathis
- Department of Paediatric Dentistry, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - M Kokoti
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - A Bakopoulou
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece.
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Wallis C, Ivanova A, Holcombe LJ. Persistent deciduous teeth: Association of prevalence with breed, breed size and body weight in pure-bred client-owned dogs in the United States. Res Vet Sci 2024; 169:105161. [PMID: 38309195 DOI: 10.1016/j.rvsc.2024.105161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/21/2023] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
Dogs use their teeth for a multitude of tasks and, as such, it is vital for their health and wellbeing that their oral health is maintained. Persistent deciduous teeth (PDT), those that fail to fall out at the appropriate time, are associated with malocclusion (misaligned bite), soft tissue trauma and increased risk of periodontal disease. The objective of the current study was to perform a retrospective analysis of veterinary medical data to understand the effect of dog breed size, dog breed and body weight on prevalence of PDT. Medical records collected from almost 3 million dogs visiting a chain of veterinary hospitals across the United States over a 5-year period showed an overall prevalence of 7% for PDT, the data represented 60 breeds with extra-small breeds (<6.5 kg) showing significantly higher prevalence (15%) than all other breed sizes (P < 0.001). Statistical modelling of extra-small, small and medium-small breed sizes showed that those on Wellness Plans or that had not received a dental prophylaxis for at least two years had significantly increased odds of PDT being detected (Odds ratio 2.72-3.2 and 2.17-3.36 respectively, P < 0.0001). Dogs with a below ideal body condition score had a decreased odds of PDT (Odds ratio 0.57-0.89, P < 0.0001) whereas those above ideal had an increased odds (Odds ratio 1.11-1.60, P < 0.0001). The findings from this extensive dataset highlight the importance of regular veterinarian examinations to identify and remove PDT, helping to avoid increasing the risk of associated issues such as periodontal disease and malocclusion.
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Affiliation(s)
- C Wallis
- Waltham Petcare Science Institute, Freeby Lane, Waltham-on-the-Wolds, Melton Mowbray, Leicestershire LE14 4RT, UK.
| | - A Ivanova
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BioStat), Data Science Institute, Hasselt University, Hasselt, Belgium
| | - L J Holcombe
- Waltham Petcare Science Institute, Freeby Lane, Waltham-on-the-Wolds, Melton Mowbray, Leicestershire LE14 4RT, UK
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Odo A, Kunimatsu R, Abe T, Sakata S, Nakatani A, Rikitake K, Koizumi Y, Tanabe I, Okimura N, Yoshimi Y, Tanimoto K. Stem cells derived from human exfoliated deciduous teeth-based media in a rat root resorption model. Arch Oral Biol 2024; 158:105854. [PMID: 38056228 DOI: 10.1016/j.archoralbio.2023.105854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/14/2023] [Accepted: 11/20/2023] [Indexed: 12/08/2023]
Abstract
OBJECTIVE Root resorption may occur during orthodontic treatment. Herein, we investigated the effect of a culture supernatant of stem cells derived from human exfoliated deciduous teeth on root resorption. DESIGN Twelve 8-week-old male Sprague-Dawley rats were used, and their maxillary first molars were pulled with excessive orthodontic force to induce root resorption. On days 1 and 7 after traction initiation, stem cells derived from human exfoliated deciduous teeth and alpha minimum essential medium (control group) were administered. After 14 days, the maxillary bone was evaluated for tooth movement. The expression of osteoprotegerin, receptor activator of nuclear factor κB ligand, tumor necrosis factor α, interleukin 1β, interleukin 6, and interleukin 17 was evaluated on the compression side and tension side. RESULTS No significant difference in tooth movement was observed between the two groups. Root resorption decreased in the group administered the culture supernatant compared with in the control. Immunohistochemical staining revealed increased osteoprotegerin expression and decreased receptor activators for nuclear factor κB ligand, tumor necrosis factor α, interleukin 1β, interleukin 6, and interleukin 17 on the compression side and tension side. CONCLUSIONS Administration of stem cells derived from human exfoliated deciduous teeth affected the expression of osteoprotegerin, receptor activator of nuclear factor κB ligand, tumor necrosis factor α, interleukin 1β, interleukin 6 and interleukin 17; hence, these stem cells may inhibit root resorption by regulating their expression.
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Affiliation(s)
- Ayaka Odo
- Department of Orthodontics and Craniofacial Development Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Ryo Kunimatsu
- Department of Orthodontics and Craniofacial Development Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan.
| | - Takaharu Abe
- Department of Orthodontics, Division of Oral Health and Development, Hiroshima University Hospital, Japan
| | - Shuzo Sakata
- Department of Orthodontics, Division of Oral Health and Development, Hiroshima University Hospital, Japan
| | - Ayaka Nakatani
- Department of Orthodontics, Division of Oral Health and Development, Hiroshima University Hospital, Japan
| | - Kodai Rikitake
- Department of Orthodontics, Division of Oral Health and Development, Hiroshima University Hospital, Japan
| | - Yuma Koizumi
- Department of Orthodontics, Division of Oral Health and Development, Hiroshima University Hospital, Japan
| | - Izumi Tanabe
- Department of Orthodontics and Craniofacial Development Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Naonobu Okimura
- Department of Orthodontics and Craniofacial Development Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Yuki Yoshimi
- Department of Orthodontics, Division of Oral Health and Development, Hiroshima University Hospital, Japan
| | - Kotaro Tanimoto
- Department of Orthodontics and Craniofacial Development Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
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Leskovar T, Pajnič IZ. Comparative analysis of DNA preservation in permanent and deciduous teeth of adults and non-adults: Implications for archaeological and forensic research. Forensic Sci Int 2023; 353:111882. [PMID: 37979239 DOI: 10.1016/j.forsciint.2023.111882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023]
Abstract
This study investigates the preservation of DNA in different categories of teeth, including permanent and deciduous, fully developed and not fully developed, in both adults and non-adults. Teeth were sampled from a modern-era cemetery in Ljubljana, Slovenia. DNA extraction was performed using a full demineralisation protocol. DNA quantity and quality were assessed using qPCR analyses, and autosomal STR typing was conducted to verify genetic profiles. Results revealed significant differences in DNA preservation among various tooth categories. Fully developed permanent teeth of adults exhibited the highest DNA yields, attributed to their fully developed roots and thicker cementum, which is rich in DNA. Deciduous teeth, with thinner enamel and cementum, showed lower DNA preservation regardless of developmental stage. Non-adult teeth generally yielded less DNA compared to adults, even when considering only fully developed permanent teeth, indicating factors beyond developmental stage. These findings suggest that, in archaeological and forensic contexts, researchers should prioritize fully developed permanent teeth for DNA analysis due to their superior preservation. Additionally, this study underscores the importance of considering tooth type and developmental stage when selecting samples for genetic analysis in cases where petrous bone is unavailable, expanding our understanding of DNA preservation in human remains.
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Affiliation(s)
- Tamara Leskovar
- Centre for Interdisciplinary Research in Archaeology, Department of Archaeology, Faculty of Arts, University of Ljubljana, Ljubljana, Slovenia
| | - Irena Zupanič Pajnič
- Institute of Forensic Medicine, Faculty of Medicine, University of Ljubljana, Korytkova 2, 1000 Ljubljana, Slovenia.
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Crystal YO, Rabieh S, Janal MN, Cerezal G, Hu B, Bromage TG. Effects of LED curing light on silver diamine fluoride penetration into dentin. J Clin Pediatr Dent 2023; 47:44-50. [PMID: 37997234 DOI: 10.22514/jocpd.2023.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/23/2023] [Indexed: 11/25/2023] Open
Abstract
This ex-vivo study investigated the effect of a light-emitting diode (LED) curing light on the depth of penetration of Silver Diamine Fluoride (SDF) into carious lesions. Twenty-four primary teeth with untreated caries lesions were allocated into groups and treated within 5 min after extraction: (1) n = 6 treated for 1 min with one drop of SDF followed by 10 sec rinse with tap water, (2) n = 6 treated for 10 sec with one drop of SDF and exposed to LED light for 20 sec (30 sec total SDF exposure) followed by 10 sec rinse with tap water, (3) n = 6 treated for 10 sec with one drop of SDF followed by a 10 sec rinse with tap water, (4) n = 3 untreated, and (5) n = 3 untreated but exposed to LED light for 20 sec. Samples were prepared, embedded, sectioned and silver penetration was measured using backscattered electron imaging in the scanning electron microscope and energy-dispersive X-ray spectroscopy analysis. Results were expressed as the average relative depth of penetration (%) = Ag depth/lesion depth × 100 from 5 sites in each lesion. Group means were compared using mixed model analysis. Mean ± standard deviation (SD) penetration was: 86.4 ± 20.7% in Group 1, 94.3 ± 13.7% in Group 2, and 26.7 ± 13.9% in Group 3. Groups 1 and 2 were statistically similar and different from Group 3 (p < 0.001). Groups 4 and 5 had no silver present. Use of LED light for 20 sec after 10 sec SDF application appears to facilitate silver penetration, similar to a 1 min SDF application. Clinical studies are needed to define the role of silver penetration in sustained caries arrest.
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Affiliation(s)
- Yasmi O Crystal
- Department Pediatric Dentistry, College of Dentistry, New York University, New York, NY 10010, USA
| | - Sasan Rabieh
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY 10010, USA
| | - Malvin N Janal
- Department of Epidemiology and Health Promotion, College of Dentistry, New York University, New York, NY 10010, USA
| | - Gretchen Cerezal
- Department Pediatric Dentistry, College of Dentistry, New York University, New York, NY 10010, USA
| | - Bin Hu
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY 10010, USA
| | - Timothy G Bromage
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY 10010, USA
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Serafin M, Fastuca R, Zecca PA, Lagravère M, Caprioglio A. 3D occlusal changes of upper first molars after rapid maxillary expansion on permanent versus deciduous teeth: a retrospective multicenter CBCT study. Prog Orthod 2023; 24:24. [PMID: 37518579 PMCID: PMC10387462 DOI: 10.1186/s40510-023-00476-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 05/19/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND The purpose of this study was to compare the three-dimensional dental changes for the maxillary first molars and the overall skeletal effects achieved after expansion between the rapid maxillary expansion (RME) appliance attached to two different anchor units, the maxillary deciduous molars and the maxillary permanent first molars. METHODS Patients were retrospectively selected according to the anchorage unit used for RME: deciduous upper second molars (RME-E group; 10 M, 10 F; mean age 8.4 ± 1.1 years) and first upper permanent molars (RME-6 group; 10 M, 10 F; mean age 12.6 ± 1.8 years). CBCT scans were obtained before treatment start (T1) and after retention and removal of the expander (T2). Images were analyzed using a new three-dimensional intra-hemi-maxillary reference system. 3D landmarks were marked to calculate all changes on maxillary first permanent molars; mesio-distal and buccal-lingual inclination and rotation, as well as intermolar and interforaminal distances were calculated. The Wilcoxon test was used to compare within-group changes, whereas the Mann-Whitney test was used to compare between-group differences, with the significance level set at 0.05. RESULTS In the RME-E group, significant distorotation and lingual inclination of the first permanent molars at T2 were observed (p < 0.01); in the RME-6 group, only the buccolingual inclination of the crossbite side after RME was resulted statistically significant (p < 0.01). In both groups, intermolar and interforaminal values increased significantly (p < 0.01). Intergroup analysis showed a significantly higher distorotation and reduced buccal inclination of maxillary first permanent molars in the RME-E group after RME (p < 0.01). CONCLUSIONS RME is effective in treating maxillary transverse hypoplasia; RME anchored too deciduous teeth spontaneously reduces buccal inclination and increases distorotation of maxillary first permanent molars, whereas anchorage to permanent molars is associated with increased buccal inclination, albeit with little clinical significance.
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Affiliation(s)
- Marco Serafin
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
| | | | - Piero Antonio Zecca
- Department of Medicine and Surgery, School of Medicine, University of Insubria, Varese, Italy
| | - Manuel Lagravère
- Orthodontics Department, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Alberto Caprioglio
- Department of Biomedical, Surgical and Dental Sciences, Section of Orthodontics, University of Milan, Milan, Italy
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
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Atif M, Tewari N, Mathur VP, Bansal K, Rahul M. Effect of 940 nm diode laser irradiation and dentin bonding agent on permeability of furcation area in primary molars. Indian J Dent Res 2023; 34:284-288. [PMID: 38197348 DOI: 10.4103/ijdr.ijdr_731_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024] Open
Abstract
Purpose Multiple accessory canals make furcation area of primary molars the most common port of entry of bacterial endotoxins to periradicular area. Reduction in permeability can improve prognosis of these teeth. Therefore, this study was designed to compare the effect of 940 nm diode laser and dentin bonding agent on the dye penetration of furcation area in primary molars. Material and Methods Thirty teeth were divided into three groups, that is, Group 1 (control group), Group 2 (dentin bonding agent applied over floor of pulp chamber), and Group 3 (diode laser irradiated over floor of pulp chamber). The samples were prepared and seven from each group were tested by dye penetration and three were sent for scanning electron microscopy. Rise in temperature in the perifurcal area was also recorded at the time of laser irradiation. Dunn's pair-wise comparison analysis was used for the analysis for the difference in dye penetration among the group. Results : The maximum rise in temperature recorded postirradiation was 6.90C. Dye penetration was significantly reduced in Group 2 Dentin bonding group (DBG) as compared to control group (P = 0.0025). Reduction in permeability was observed in Group 3 Laser group (LG) but this was not statistically significant (P = 0.197). Scanning electron microscope revealed open dentinal tubules in Group 1. There were no open dentinal tubules in Group 2, while Group 3 had sealed dentinal tubules with glass-like surface over the region. Conclusion Dentin bonding agent led to substantial decrease in dye penetration of furcation area of primary molars. This method should be evaluated clinically to improve successful pulpectomy procedures of primary molars.
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Affiliation(s)
- Mohammad Atif
- Department of Pediatrics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Nitesh Tewari
- Department of Pediatrics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay P Mathur
- Department of Pediatrics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Kalpana Bansal
- Department of Pediatrics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Morankar Rahul
- Department of Pediatrics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
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Alqarni AS, AlGomaiah MA. Evaluation of the Efficacy of Various Root Canal Irrigants on Removal of Smear Layer in Primary Teeth: A Comparative Study. J Pharm Bioallied Sci 2023; 15:S455-S458. [PMID: 37654420 PMCID: PMC10466516 DOI: 10.4103/jpbs.jpbs_605_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 09/02/2023] Open
Abstract
Aim The aim of the current research was to appraise the effectiveness of different radicular canal irrigant solutions on the elimination of the smear layer in deciduous teeth. Materials and Methods A total of 60 fit deciduous teeth that were subjected to extraction for a variety of curative reasons were employed in this research. Every sample tooth was subjected to decoronation at the CEJ employing a carborundum disk. A number 10 K-file (Dentsply Maillefer) was utilized to estimate the working length of the radicular canal using a manual technique by a sole operator in the step-back method. The specimens were allocated at random to one of the following three groups: Group 1: Irrigation using Saline, Group 2: Irrigation using 6% Citric acid, and Group 3: Irrigation using sodium hypochlorite. Following 24 h of storage, the sample teeth were subjected to vertical grooving using diamond suctioning discs beneath a high-power suction. All sections were subjected to staining using 1% methylene blue for 2 min before rinsing with 0.9% saline and allowed to bench dry. Rendering scores for the existence of a smear layer for the two halves of the split sample tooth were performed by visual inspection for the cervical, middle, plus apical one-third via a light stereomicroscope at 40× magnifying power. Results With saline irrigation, the smear coat elimination at coronal one-third scored at 2.16 ± 0.11, 1.84 ± 0.06 at middle one-third, along with 1.92 ± 0.26 at the apical one-third. When 6% citric acid was employed as an irrigant, the scores were 0.72 ± 0.14 at coronal one-third, 0.84 ± 0.03 at middle one-third, and 0.90 ± 0.23 at apical one-third. When sodium hypochlorite was used as an irrigant, the mean score was 0.78 ± 0.12 at the coronal one-third, 0.92 ± 0.06 at the middle one-third, as well as 0.96 ± 0.18 at the apical one-third. The differences between the groups were statistically significant. Conclusion The current in-vitro research arrived at a conclusion that 6% citric acid has the potential to eliminate smear coats in deciduous radicular canals when employed as a closing irrigant following instrumentation.
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Affiliation(s)
- Adel S. Alqarni
- Department of Preventive Dental Sciences, Division of Paediatric Dentistry, College of Dentistry, Prince Sattam Bin Abdulaziz University, Alkharj, Kingdom of Saudi Arabia
| | - Muadh A. AlGomaiah
- Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia
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Lopatin O, Barszcz M, Woźniak KJ. Skeletal and dental age estimation via postmortem computed tomography in Polish subadults group. Int J Legal Med 2023; 137:1147-1159. [PMID: 37126082 PMCID: PMC10247556 DOI: 10.1007/s00414-023-03005-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/18/2023] [Indexed: 05/02/2023]
Abstract
This article is a retrospective analysis of postmortem computed tomography scans of ossification stages of the anterior and posterior intra-occipital sutures, the anterior arch of the atlas, and the neurocentral junction of the axis. We also analyzed the development of secondary ossification centers in the proximal humeral, femoral, and tibial epiphyses, and the distal femoral and tibial epiphyses. Additionally, the development of primary ossification centers in the wrist and metacarpals, and maxillary and mandibular deciduous tooth maturation. A total of 58 cadavers (35 males, 23 females), whose age ranged from 3rd month of pregnancy to 14 years, were analyzed. The results of this study show that analysis of synchondrosis closure, primary, and secondary ossification center development and deciduous tooth changes are a good tool for age estimation in subadults group (fetuses, newborns, infants, and children). The results of the study in a Polish population are consistent with those reported by other authors.
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Affiliation(s)
- Oleksiy Lopatin
- Chair and Department of Forensic Medicine, Jagiellonian University Medical College, Grzegórzecka 16, 31-531, Kraków, Poland
| | - Marta Barszcz
- Chair and Department of Forensic Medicine, Jagiellonian University Medical College, Grzegórzecka 16, 31-531, Kraków, Poland
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Kraków, Poland
| | - Krzysztof Jerzy Woźniak
- Chair and Department of Forensic Medicine, Jagiellonian University Medical College, Grzegórzecka 16, 31-531, Kraków, Poland.
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Kirthiga M, Tejasvi R, Srivarshani S, Muthu MS. Assessment of OXIS contacts-a comparison of three methods. Eur Arch Paediatr Dent 2023:10.1007/s40368-023-00805-2. [PMID: 37311928 DOI: 10.1007/s40368-023-00805-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/16/2023] [Indexed: 06/15/2023]
Abstract
PURPOSE To compare OXIS contacts by means of Replication using Sectional die Models (RSM) and Photographs of the Models (PM) with Direct Clinical Examination (DCE) in a sample of preschool children aged 3-4 years. METHODS A retrospective cross-sectional study was performed using existing records of sectional die models and their photographs among 4257 contacts of 1104 caries-free pre-school children. Two calibrated examiners scored the contacts between the distal surface of the primary first molar and mesial surface of the primary second molar using OXIS criteria from the occlusal view using the RSM & PM methods. These were compared to the OXIS scores from DCE method which was available from previous records. Kappa agreement was used to compare results obtained RSM and PM methods with DCE. RESULTS The kappa agreement between the RSM and DCE methods was 98.48%; and between the PM and DCE methods was 99.42%, both of which indicated perfect agreement. CONCLUSION The RSM and PM methods were found to have an excellent agreement in scoring OXIS contacts when compared to the DCE method. PM was found to be slightly more accurate than the RSM method for scoring OXIS contacts.
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Affiliation(s)
- M Kirthiga
- Centre for Early Childhood Caries and Research (CECCRe), Department of Pediatric and Preventive Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Sri Ramachandra Nagar, Porur, Chennai, Tamilnadu, 600116, India
| | - R Tejasvi
- Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Chennai, India, Tamilnadu
| | - S Srivarshani
- Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Chennai, India, Tamilnadu
| | - M S Muthu
- Centre for Early Childhood Caries and Research (CECCRe), Department of Pediatric and Preventive Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Sri Ramachandra Nagar, Porur, Chennai, Tamilnadu, 600116, India.
- Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, UAE.
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Lin YC, Huang ST, Yen CW, Huang YK, Shieh TM, Chi WH, Yao WL, Ho PS. Comparing individual-, family-, and community-level effects on the oral health of preschool children: a multilevel analysis of national survey data. BMC Oral Health 2023; 23:353. [PMID: 37268948 DOI: 10.1186/s12903-023-03077-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 05/25/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Early childhood is a critical stage for the prevention of dental caries. The prevalence of caries in preschool children is still high in Taiwan, where National Health Insurance covers 99% of the population. The effort to improve the oral health of preschool children should be based on conceptual model that encompasses more than individual-level factors. This study input nationwide survey data in a conceptual model to evaluate the effects of comprehensive factors related to the high prevalence of caries in preschool children. METHODS This observation study examined factors related to the oral health of preschool children by employing a comprehensive multilevel model to analyse nationally representative data from the Taiwan Oral Health Survey of Preschool Children (TOHPC) 2017-2018. Individual-level, family-level and community-level contextual effects were evaluated through multilevel analysis in this study. The proportional change in variance (PCV) was used to compare the multilevel model with the null model and individual-level, family-level, and community-level context effects. RESULTS The estimated deft index for preschool children was 1.34 (1.22-1.47) at age 3, 2.20 (2.08-2.32) at age 4, and 3.05 (2.93-3.18) at age 5. The overall prevalence of caries in preschool children in Taiwan was 34.27% (30.76%, 37.78%) at age 3, 51.67% (48.99%, 54.35%) at age 4, and 62.05% (59.66%, 64.44%) at age 5. The model that included the individual-, family-, and community-context levels exhibited the highest reduction of variance (PCV = 53.98%). The PCV was further reduced to 35.61% when only the level of accessibility to dental services for individuals, families, and the community was considered. For the model in which no community-context cofactors were considered and the model considering only the individual level, the PCVs were 20.37% and 5.52%, respectively. CONCLUSIONS Our findings indicate the key components that affect oral health in preschool children and can serve as a reference for policy makers. The most notable finding of this study is that to improve the oral health of preschool children, community-level factors should be targeted. To rely solely on dentists for leading oral health education programs for children is impractical and inefficient. Training more professional oral health educators to provide additional community-based oral health promotion campaigns is critical. We suggest training more professional oral health educators to provide more community-based oral health promotion campaigns.
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Affiliation(s)
- Ying-Chun Lin
- Department of Oral Hygiene, Shu-Zen College of Medical and Management, Kaohsiung, Taiwan
| | - Shun-Te Huang
- Division of Pediatric and Special Needs Dentistry, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Cheng-Wei Yen
- Division of Pediatric and Special Needs Dentistry, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yung-Kai Huang
- Department of Oral Hygiene, Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | - Wei-Hsueh Chi
- Department of Oral Hygiene, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wu-Lin Yao
- Department of Oral Hygiene, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pei-Shan Ho
- Department of Oral Hygiene, Kaohsiung Medical University, Kaohsiung, Taiwan.
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Division of Medical Statistics and Bioinformatics, Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Murthy P, Bhojraj N, Hegde U. Changes in Pulp and Roots of Deciduous Teeth during Different Stages of Physiologic Resorption: A Histologic Study. Int J Clin Pediatr Dent 2023; 16:437-443. [PMID: 37496938 PMCID: PMC10367289 DOI: 10.5005/jp-journals-10005-2538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023] Open
Abstract
Background Resorption of primary teeth and eruption of permanent teeth involves a complex series of changes. The cellular and histological changes occurring during the process of resorption vary stagewise. The knowledge of the changes occurring in the pulp of deciduous teeth would provide information about the resorptive process. Aim To evaluate the histologic changes of the pulp of deciduous teeth related to different stages of physiologic root resorption. Study setting and design To establish the cause and effect relationship, a contrived histologic study design was planned. Materials and methods A total of 60 extracted deciduous incisors, canines, and molars were included in the study. The remaining root length (RRL) was determined based on the standardized photographs. The teeth were then grouped into three based on the percentage of RRL. The teeth were subjected to decalcification with 5% nitric acid, following which histological processing was performed. Statistical analysis The present study being a qualitative study design, descriptively explains the histologic findings, and no statistical tests have been applied. Results During the initial stages of resorption, there were no histological alterations noted in the pulp, particularly in the cervical 3rd, with the cellular structure relatively maintained. As the resorption progresses, reversal lines were evident, indicating a process of repair occurring simultaneously during the process of resorption. With further advancement, the repair is overtaken by the resorption indicated by the presence of resorptive cells. Neovascularization and an increase in immune cells are also evident in advanced stages. Conclusion The pulp exhibits progressive changes as the resorption continues from stage I to stage III. The changes vary from a smaller number of immune cells and odontoclasts in stage I to increasing number of the same as resorption progresses. How to cite this article Murthy P, Bhojraj N, Hegde U. Changes in Pulp and Roots of Deciduous Teeth during Different Stages of Physiologic Resorption: A Histologic Study. Int J Clin Pediatr Dent 2023;16(3):437-443.
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Affiliation(s)
- Prashanth Murthy
- Department of Pediatric and Preventive Dentistry, JSS Dental College & Hospital, JSS Academy of Higher Education & Research (Deemeed to be University), Mysuru, Karnataka, India
| | - Nandlal Bhojraj
- Department of Pediatric and Preventive Dentistry, JSS Dental College & Hospital, JSS Academy of Higher Education & Research (Deemeed to be University), Mysuru, Karnataka, India
| | - Usha Hegde
- Department of Oral Pathology & Microbiology, JSS Dental College & Hospital, JSS Academy of Higher Education & Research (Deemeed to be University), Mysuru, Karnataka, India
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Gaur G, Agarwal P, Goyal G, Sharma S. Management of a Large Dentigerous Cyst with Enucleation and Packing Open with BIPP in 9-year-old Child: A Case Report. Int J Clin Pediatr Dent 2023; 16:515-517. [PMID: 37496944 PMCID: PMC10367287 DOI: 10.5005/jp-journals-10005-2581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023] Open
Abstract
Dentigerous cyst is also known as follicular cyst. It is an odontogenic cyst of developmental origin. The dentigerous cyst involves impacted, embedded or submerged tooth by expansion of its follicle. The normal follicular space is mostly 3-4 mm but with dentigerous cyst it can be 5 mm or more. These are second most commonly occurring odontogenic cysts and literature shows occurrence of 24% among true cysts of jaw. It is most commonly associated with mandibular 3rd molar followed by maxillary canine and third molar. Radiographically occurring as unilocular radiolucency around an impacted tooth. In our case the cyst was a large dentigerous cyst occurring in 9-year-old child having mixed dentition. Complete enucleation of the cystic lesion and packing open with bismuth iodoform paraffin paste (BIPP) was done. BIPP dressing was changed at regular intervels and more than 60% of bone formation was complete in around 5 months which was evident on the radiograph. Conclusion: Methods employed for elimination include enucleation, decompression marsupialization but the treatment modality also depends upon age, existing dentition, location and size of the lesion. How to cite this article Gaur G, Agarwal P, Goyal G, et al. Management of a Large Dentigerous Cyst with Enucleation and Packing Open with BIPP in 9-year-old Child: A Case Report. Int J Clin Pediatr Dent 2023;16(3):515-517.
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Affiliation(s)
- Gaurav Gaur
- Department of Oral and Maxillofacial Surgery, Eklavya Dental College & Hospital, Jaipur, Rajasthan, India
| | - Prateek Agarwal
- Department of Oral and Maxillofacial Surgery, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Garima Goyal
- Department of Orthodontics and Dentofacial Orthopedics, Mahatma Gandhi Dental College, Jaipur, Rajasthan, India
| | - Shirish Sharma
- Department of Oral and Maxillofacial Surgery, Jaipur Dental College, Jaipur, Rajasthan, India
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Sipovac M, Petrovic B, Amzirkov M, Stefanovic S. Enamel incremental markings in the deciduous teeth of children from the Early Bronze and modern ages. Arch Oral Biol 2023; 148:105635. [PMID: 36764086 DOI: 10.1016/j.archoralbio.2023.105635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 01/08/2023] [Accepted: 01/29/2023] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The purpose of this study was to determine whether children from Early Bronze Age and modern populations differ in terms of the width of the neonatal line (NNL) and the occurrence of accentuated lines in enamel. DESIGN The sample (N = 59) consisted of two groups: 29 deciduous teeth removed from the jaws of children (dental age range from 1 to 10 years) whose skeletal remains were found in Early Bronze archaeological graves in Mokrin Serbia, and 30 present-day exfoliated deciduous teeth from 6 to 11 year old children. Mothers, whose children participated in this study, provided information regarding their health during pregnancy. The analysis was carried out on ground sections with a scanning electron microscope. Two clinicians measured the width of the NNL and counted the accentuated lines in the enamel. RESULTS There was a statistically significant difference between the children from the two groups regarding the width of the NNL. The width of the NNL between children whose mothers were healthy and diagnosed with gestational diabetes was significantly different. Most subjects did not have accentuated lines in the prenatal enamel, regardless of whether they were from the Bronze or Modern age. Accentuated lines were dominantly found in the postnatal enamel of the children from the Early Bronze age. CONCLUSIONS This study is the first to investigate the width of the NNL in teeth of Maros children and Serbian children from the modern age. The wider NNL of children from the Early Bronze age indicates the possibility that they have experienced more overall stress in perinatal life.
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Affiliation(s)
- Milica Sipovac
- University of Belgrade, Faculty of Philosophy, Cika Ljubina 18-20, 11000 Belgrade, Republic of Serbia; University of Novi Sad, Faculty of Medicine, HajdukVeljkova 3, 21000 Novi Sad, Republic of Serbia.
| | - Bojan Petrovic
- University of Novi Sad, Faculty of Medicine, HajdukVeljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Mina Amzirkov
- University of Belgrade, Faculty of Philosophy, Cika Ljubina 18-20, 11000 Belgrade, Republic of Serbia
| | - Sofija Stefanovic
- University of Belgrade, Faculty of Philosophy, Cika Ljubina 18-20, 11000 Belgrade, Republic of Serbia; University of Novi Sad, BioSense Institut, Dr Zorana Djindjica 1, Novi Sad, Republic of Serbia
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Feldens CA, Braga VS, Kramer PF, Vítolo MR, Rodrigues PH, de Barros Coelho EMR, Chaffee BW. Primary Dentition Caries Patterns as Predictors of Permanent Dentition Caries: A Prospective Cohort Study. Caries Res 2023; 57:167-176. [PMID: 36780891 DOI: 10.1159/000529620] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
The aims of this study were to estimate the risk of caries in the permanent teeth at 12 years of age and to describe the diagnostic accuracy of caries patterns in the primary dentition at age 4 years to predict caries at age 12 years. A prospective cohort study followed children from birth to age 12 years in the city of São Leopoldo, Brazil. Sociodemographic variables were collected at birth, and dental caries was measured at 4 and 12 years of age (n = 204). At 4 years, children were classified according to the presence of caries (cavitated and non-cavitated lesions), number of lesions, affected segment (anterior or posterior), and affected surface (occlusal, smooth, or proximal). Prediction of permanent dentition caries occurrence (DMFT ≥1) (primary outcome) involved Poisson regression with robust variance and standard diagnostic accuracy measures. The prevalences of caries at age 4 years (including non-cavitated lesions) and 12 years were 61.8% and 42.2%, respectively. All caries patterns in the primary dentition were associated with caries in the permanent dentition. In multivariable analysis, the strongest associations were carious lesions on the primary posterior teeth (RR 2.2; 95% CI 1.5-3.2) and occlusal surfaces (RR 2.1; 95% CI 1.4-3.0). Among patterns evaluated, the presence of any tooth with caries (cavitated or non-cavitated) had the highest sensitivity (73%), but any tooth with cavitated decay had the highest accuracy (67%). In conclusion, any dental caries experience in early childhood is strongly predictive of dental caries experience in early adolescence. Primary dentition carious lesions on the posterior teeth or occlusal surfaces and the presence of cavitated lesions were stronger predictors.
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Affiliation(s)
| | - Vanessa Simas Braga
- Department of Pediatric Dentistry, Universidade Luterana do Brasil, Canoas, Brazil
| | - Paulo Floriani Kramer
- Department of Pediatric Dentistry, Universidade Luterana do Brasil, Canoas, Brazil
- Department of Pediatric Dentistry, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Márcia Regina Vítolo
- Graduate Program in Pediatrics: Child and Adolescent Health Care, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Priscila Humbert Rodrigues
- Department of Pediatric Dentistry, Universidade Luterana do Brasil, Canoas, Brazil
- Department of Pediatric Dentistry, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Benjamin W Chaffee
- Division of Oral Epidemiology and Dental Public Health, University of California San Francisco, San Francisco, California, USA
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Shin Y, Wada K, Tsuchida Y, Ijbara M, Ikeda M, Takahashi H, Iwamoto T. Wear behavior of materials for additive manufacturing after simulated occlusion of deciduous dentition. J Mech Behav Biomed Mater 2023; 138:105627. [PMID: 36571853 DOI: 10.1016/j.jmbbm.2022.105627] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVES To evaluate wear characteristics of materials for additive manufacturing (AM) after a simulated occlusal test in primary teeth. Wear was simulated by means of impacting - sliding wear testing (ISWT) between specimens prepared from materials for AM against enamel derived from deciduous teeth. METHODS The prepared hemispherical upper specimens were subjected to impacting-sliding wear test (ISWT) machine against the flattened enamel of deciduous molars on lower specimens. The samples were subjected to 20,000 load cycles using a contact force of 30 N between the opposing surfaces under controlled conditions. In the upper specimens, five groups (n=9): four types of additively manufactured materials Dima, Zenith, Detax, Veltz and a deciduous enamel groups were tested in this study. The enamel-to-enamel group was used as the control. Wear characteristics comprised wear surface area, wear depth, wear volumetric loss, and surface roughness were measured with a confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). Data obtained were statistically analyzed by Kruskal-Wallis test and Dunn's test with Bonferroni correction (p < 0.05). RESULTS Dima showed significantly higher worn surface area (p = 0.009, 0.001, and < 0.001 for Zenith, Detax, and control enamel, respectively), volumetric loss (p = 0.027, 0.007, and < 0.001 for Zenith, Detax, and control enamel, respectively), and damaged opposing enamel (p = 0.002, 0.001, and 0.01 for Detax, Veltz, and control enamel, respectively). There was no significant difference among the volumetric loss in Zenith and Detax. However, SEM revealed that Zenith showed rough worn surfaces and chipping, Detax showed rather a smooth circular worn surface. The worn area of Veltz was smaller than Detax and Zenith at 5,000 cycles, but higher at 15,000 and 20,000 cycles, and SEM showed detachment. CONCLUSION Wear behavior was different among different materials for AM. In the upper specimens, DM and VZ showed large wear. In the lower specimens, DM caused largest enamel wear and damage. In contrast, ZT and DX showed lower wear and caused less damage to the antagonistic primary enamel. SEM image of ZT showed large losses due to chipping, whereas DX showed the rather smooth. DX was confirmed to have lowest wear and caused least damage to the opposing deciduous enamel, which might be applicable as restorative treatments in deciduous dentition. SIGNIFICANCE Additive manufactured dental materials could be considered as a treatment modality in deciduous teeth.
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Affiliation(s)
- Yujeong Shin
- Department of Pediatric Dentistry / Special Needs Dentistry, Tokyo Medical and Dental University (TMDU), Japan
| | - Kanae Wada
- Department of Pediatric Dentistry / Special Needs Dentistry, Tokyo Medical and Dental University (TMDU), Japan.
| | - Yumi Tsuchida
- Department of Digital Dentistry, Tokyo Medical and Dental University (TMDU), Japan
| | - Manhal Ijbara
- Pediatric Dentistry Department, Hail Specialized Dental Center, Ministry of Health, Hail, Saudi Arabia
| | - Masaomi Ikeda
- Department of Basic Oral Health Engineering, Tokyo Medical and Dental University (TMDU), Japan
| | - Hidekazu Takahashi
- Department of Basic Oral Health Engineering, Tokyo Medical and Dental University (TMDU), Japan
| | - Tsutomu Iwamoto
- Department of Pediatric Dentistry / Special Needs Dentistry, Tokyo Medical and Dental University (TMDU), Japan
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Pei SL, Chen MH. Comparison of periodontal health of primary teeth restored with zirconia and stainless steel crowns: A systemic review and meta-analysis. J Formos Med Assoc 2023; 122:148-156. [PMID: 36180321 DOI: 10.1016/j.jfma.2022.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/17/2022] [Accepted: 08/22/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND/PURPOSE In children, the use of stainless steel crowns to treat caries has a high success rate. However, due to the unnatural color of stainless steel crowns, it still needs to modify crown types. The present meta-analysis study aims to explore the previous articles on the comparison of stainless steel crowns and zirconia crowns. METHODS The systematic search of studies on the comparison of zirconia crowns and stainless steel crowns for primary teeth was mainly in PubMed and Cochrane database. The standardized mean differences (SMDs) of gingival health between zirconia crowns and stainless steel crowns comprised the primary outcome, and the SMDs of plaque index compared two crown treatments was treated as the secondary outcome. RESULTS The meta-analysis extracted 187 papers from various databases and collected five randomized controlled trials, four comparisons on deciduous molars and one comparison on deciduous incisors. 160 children were included, ranging in age from 3-9 years old. The quantitative analysis showed a significantly lower gingival index of zirconia crowns in the primary molar group and the primary incisor group. The plaque index between two crown treatments groups was -4.51, indicating less accumulation of plaque on zirconia crown. However, the heterogeneity of included trials still need to be considered. CONCLUSION Zirconia crowns for deciduous teeth had its advantages for gingival health. Although stainless steel crowns were more likely to have plaque deposition and gingival inflammation, zirconia crowns relatively caused the opposite tooth wearing and chipping. Therefore, the comprehensive consideration is important to choose deciduous tooth crown.
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Affiliation(s)
- Shan-Li Pei
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, No. 1, Chang-de St., 100, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Min-Huey Chen
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, No. 1, Chang-de St., 100, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan.
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Bulut E, Güçlü ZA. Evaluation of primary teeth affected by dental trauma in patients visiting a university clinic, part 2: dental injury types, treatment strategies, and complications. Clin Oral Investig 2023; 27:727-737. [PMID: 36502510 DOI: 10.1007/s00784-022-04820-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 11/26/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVES This article focuses on treatments and complications in patients presenting dental trauma in primary teeth. Treatment alternatives begin with the decision of performing a procedure under clinical settings or pharmacological techniques (PC) in young children. Correct diagnosis and treatment are crucial to maximize the chances of a favorable outcome. MATERIALS AND METHODS The files of 320 patients aged 0-9 years who presented to the Erciyes University Faculty of Dentistry Department for dental trauma management in primary teeth were evaluated in between 2018 and 2021 for 3-year period. The following information were extracted from patients' records: injury type, affected teeth, caries condition of the teeth, treatment preferences of the dentists. Additionally postoperative complications and their management were evaluated. RESULTS While 63.1% of the traumatized teeth were caries-free, 35.8% of the teeth had caries. The most frequent dental injuries was simple crown fractures (42.9%), followed by complicated crown fractures (38.5%). Treatments were mostly done in clinical conditions (67.9%) and mostly patients attend regularly to follow-up visits (85.6%). Clinicians prefer more radical treatments under sedation or GA (92.4% extraction of injured tooth). Coronal discoloration was the most common complication, and 35.3% had pulp necrosis for longer term results. CONCLUSION Follow-up decisions made after concussion in the primary teeth might be appropriate for the patient. Examination of the complication status of primary teeth with simple crown fracture injury revealed that 59.5% of patients did not have any complications. Follow-up decisions were found to be appropriate for crowns with coloration alone. CLINICAL RELEVANCE All options should be considered to provide the best care for children after primary tooth trauma; this can be achieved by being informed about the treatment and its consequences, and if necessary, a positive prognosis can be achieved with an interdisciplinary approach.
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Affiliation(s)
- Esra Bulut
- Department of Pediatric Dentistry, Faculty of Dentistry and Hospitals, Erciyes University, Melikgazi, Kayseri, 38039, Turkey
| | - Zeynep Aslı Güçlü
- Department of Pediatric Dentistry, Faculty of Dentistry and Hospitals, Erciyes University, Melikgazi, Kayseri, 38039, Turkey.
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Bhatt RA, Patel MC, Bhatt R, Patel C, Joshi KR, Makwani D. A comparative evaluation of light cure calcium silicate and resin-modified glass ionomer as indirect pulp capping agent in primary molars: A randomized clinical trial. Dent Res J (Isfahan) 2023; 20:18. [PMID: 36960027 PMCID: PMC10028582 DOI: 10.4103/1735-3327.369620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/18/2022] [Accepted: 10/04/2022] [Indexed: 03/25/2023] Open
Abstract
Background Minimally invasive techniques should be employed to maintain pulp vitality without affecting physiological tooth resorption for pediatric patients. This study aims to evaluate clinical and radiographic success of light cure calcium silicate and resin-modified glass ionomer (RMGI) as indirect pulp-capping agent in primary molars in children between 5 and 9 years. Materials and Methods In this randomized clinical trial study, 40 primary molars with the International Caries Detection and Assessment System criteria 4-6 score were divided randomly into two groups after computerized randomization method. After caries excavation by minimally invasive dentistry principle, affected dentin was lined by either light cure calcium silicate (Group I) or RMGI (Group II) liner followed by composite restoration. Clinical success was determined with the absence of symptoms and bitewing radiographs were taken at baseline, 3, and 6 months' interval to measure increase in dentin increment using ImageJ software. Statistical analysis for intergroup comparison was done using Paired t-test, and Independent t-test was used for intragroup comparison. The level of statistical significance was set at P < 0.05. Results Change in dentin increment seen from baseline to 6 months in Group I was 0.19 mm and in Group II was 0.20 mm (P = 0.924). Intragroup increment was statistically significant during all follow-up intervals for both the groups (Group I - P ≤ 0.001, Group II - P = 0.009). For baseline remaining dentin thickness >1.5 mm, statistically significant increase was observed in the dentin increment at 3 months' interval between both the groups. Conclusion Both TheraCal LC and Vitrebond show acceptable clinical and radiographic results when used in primary molars as indirect pulp treatment agents. Both the liners are equivalent to each other in terms of feasibility and cost-effectiveness but TheraCal LC can be preferred due to better handling and avoiding the manipulation step thereby reducing treatment time.
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Affiliation(s)
- Roshni A. Bhatt
- Department of Pediatrics and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
- Address for correspondence: Dr. Roshni A. Bhatt, 504 Mark Residency, Bill, Vadodara - 391 410, Gujarat, India. E-mail:
| | - Megha C. Patel
- Department of Pediatrics and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
| | - Rohan Bhatt
- Department of Pediatrics and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
| | - Chhaya Patel
- Department of Pediatrics and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
| | - Kaushal R. Joshi
- Department of Pediatrics and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
| | - Disha Makwani
- Department of Pediatrics and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
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Swanson BZ, Croll TP. 19th Century Deciduous Tooth Boxes from France and Belgium. J Hist Dent 2023; 71:191-193. [PMID: 38039109 DOI: 10.58929/jhd.2023.071.03.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
An encounter 50 years ago led to an interesting collection of tooth boxes. This paper will highlight many of those unique treasures emanating from Northwestern Europe.
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Affiliation(s)
| | - Theodore P Croll
- Clinic Director, Cavity Busters Doylestown, Doylestown, PA, Adjunct Professor, Pediatric Dentistry, University of Texas HSC at San Antonio (Dental School). Clinical Professor, Pediatric Dentistry, Case Western Reserve School of Dental Medicine
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Nisar SS, Irfan F, Hammad H, Abdulla AM, Kamran MA, Barakat A, Niazi F, Baig EA, Qureshi A. Disinfection of caries-affected dentin using potassium titanyl phosphate laser, Rose bengal and Ozonated water on shear bond strength of deciduous teeth. Photodiagnosis Photodyn Ther 2022; 40:103044. [PMID: 35914695 DOI: 10.1016/j.pdpdt.2022.103044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/23/2022] [Accepted: 07/28/2022] [Indexed: 12/14/2022]
Abstract
AIM To assess the efficacy of disinfection of caries-effected dentin (CAD) using KTP laser and different decontamination methods using ozonated water (OW), Rose Bengal photosensitizer (RBP), chlorhexidine (CHX), and Er, YAG laser on the shear bond strength (SBS) of adhesive resin bonded to deciduous teeth. MATERIAL AND METHODS A total of 50 extracted and radiographically verified carious primary molars were collected and scrutinized according to ICDAS criteria. Specimens were allocated randomly into five groups (n = 10) as per the type of CAD disinfectants. KTP laser, OW, RBP, CHX (control), and Er, YAG laser. After cavity sanitization, a resin adhesive (prime and bond NT) was smeared on the dentinal exterior followed by incremental composite filling. SBS evaluation was performed by employing specimens in the universal testing machine. The debonded surface was assessed under 40x magnification in a stereomicroscope to ascertain fracture mode. Statistical analysis was done by using the ANOVA and the Post Hoc Tukey multiple comparison tests (p < 0.05). RESULTS The highest SBS was exhibited by group 2 i.e., when OW was employed for CAD disinfection (10.25 ± 0.24 MPa). Whereas, the lowest SBS bond value was unveiled by samples in group 3 when RBP was applied for dentin surface sanitization (7.85 ± 0.59 MPa).CAD disinfection with KTP laser (8.25 ± 0.41 MPa), CHX (8.19 ± 0.73 MPa), and RBP displayed comparable bond values (p > 0.05). CONCLUSION Ozonated water and Er, YAG laser could be employed as cavity disinfectants in primary teeth as they demonstrated better shear bond strength without jeopardizing the adhesive binding capacity of restorative resins bonded to caries-affected dentin.
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Affiliation(s)
- Sidra Sadaf Nisar
- Department of Science of Dental Materials, Dow International Dental College, Karachi, Pakistan.
| | - Fariha Irfan
- Department of Operative Dentistry and Endodontics, Hamdard College of Medicine and Dentistry, Hamdard University, Karachi, Pakistan.
| | - Hina Hammad
- Department of Operative Dentistry and Endodontics, Hamdard College of Medicine and Dentistry, Hamdard University, Karachi, Pakistan
| | - Anshad M Abdulla
- Department of Pedodontics and Orthodontics Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia.
| | - Muhammad Abdullah Kamran
- Department of Pedodontics and Orthodontics Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia.
| | - Ali Barakat
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia.
| | - Fayez Niazi
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia.
| | - Eisha Abrar Baig
- Department of Operative Dentistry, Dow International Dental College, Pakistan.
| | - Ambrina Qureshi
- Department of Community and Preventive Dentistry, Dow University of Health Sciences, Karachi, Pakistan.
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22
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Krishna M, Shetty A, Manjappa AB, Shetty V, Hegde MN, Kumar BM. Comparative characterization and analysis of telomere length in stem cells derived from deciduous and permanent teeth. Dent Res J (Isfahan) 2022; 19:64. [PMID: 36159052 PMCID: PMC9490240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 01/24/2022] [Accepted: 03/01/2022] [Indexed: 11/18/2022] Open
Abstract
Background Understanding the influence of age on growth kinetics and telomere length in dental stem cells is essential for the successful development of cell therapies. Hence, the present study compared the basic cellular and phenotypical characteristics of stem cells from human exfoliated deciduous teeth (SHEDs) and dental pulp stem cells (DPSCs) of permanent teeth and their telomere lengths using quantitative real-time polymerase chain reaction. Materials and Methods The study is an in vitro original research article. Primary cultures of SHED and DPSCs (n = 6 each) were successfully established in vitro, and the parameters analyzed were the morphology, viability, proliferation rate, population doubling time (PDT), phenotypic markers expression, and the relative telomere lengths. Data were analyzed by analysis of variance and P < 0.05 was considered statistically significant. Results SHED and DPSCs exhibited a small spindle-shaped fibroblast-like morphology with >90% viability. The proliferation assay showed that the cells had a typical growth pattern. The PDT values of SHED and DPSCs were 29.03 ± 9.71 h and 32.05 ± 9.76 h, respectively. Both cells were positive for surface markers CD29, CD44, and CD90. However, they were negative for CD45 and human leukocyte antigen DR. Although the differences in relative telomere lengths between the individual cell lines of SHED and DPSCs were observed, no significant (P > 0.05) variations were found for the mean T/S ratios of both the cells. Conclusion SHED and DPSCs displayed similar morphology, proliferation rates, and phenotypic features. The relative telomere lengths were slightly shorter in DPSCs than SHED, but the values were not significantly different. Thus, SHED and DPSCs can be considered as recognized sources for regenerative applications in dentistry.
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Affiliation(s)
- Murali Krishna
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangaluru, Karnataka, India
| | - Aditya Shetty
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangaluru, Karnataka, India,Address for correspondence: Dr. Aditya Shetty, Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangaluru, Karnataka, India. E-mail:
| | - Akshay Bairapura Manjappa
- Nitte University Centre for Stem Cell Research and Regenerative Medicine, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangaluru, Karnataka, India
| | - Veena Shetty
- Nitte University Centre for Stem Cell Research and Regenerative Medicine, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangaluru, Karnataka, India
| | - Mithra Nidarsh Hegde
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangaluru, Karnataka, India
| | - Basavarajappa Mohana Kumar
- Nitte University Centre for Stem Cell Research and Regenerative Medicine, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangaluru, Karnataka, India
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23
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Lopez-Lozano AP, Arevalo-Niño K, Gutierrez-Puente Y, Montiel-Hernandez JL, Urrutia-Baca VH, Del Angel-Mosqueda C, De la Garza-Ramos MA. SSEA-4 positive dental pulp stem cells from deciduous teeth and their induction to neural precursor cells. Head Face Med 2022; 18:9. [PMID: 35236383 PMCID: PMC8889676 DOI: 10.1186/s13005-022-00313-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 02/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Stage-specific embryonic antigen-4 (SSEA-4) is a marker for the identification of multipotent embryonic cells. It is also positive in neuroepithelial cells, precursor neural cells (NPC), and human dental pulp cells. The aim of this study was to evaluate the potential morphodifferentiation and histodifferentiation to NPC of SSEA-4 positive stem cells from human exfoliated deciduous teeth (SHED). METHODS A SHED population in culture, positive to SSEA-4, was obtained by magnetic cell separation. The cells were characterized by immunohistochemistry and flow cytometry. Subsequently, a neurosphere assay was performed in a medium supplemented with basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF); afterward, cells were neurodifferenciated with a neurobasal medium. Finally, indirect immunohistochemistry was performed to identify neuronal markers. RESULTS The morphological and histological changes in the SSEA-4 positive SHEDs were observed after induction with epidermal and fibroblast growth factors in neurobasal culture medium. At the end of induction, the markers Nestin, TuJ-1, and GFAP were identified. CONCLUSIONS The findings show that SSEA-4 positive SHEDs have a behavior similar to neuronal precursor cells. Our findings indicate that the dental pulp of deciduous teeth is a promising source for regeneration therapies associated with neurodegenerative diseases or peripheral nerve alterations.
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Affiliation(s)
- Ada Pricila Lopez-Lozano
- Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, Nuevo Leon, San Nicolas de los Garza, Mexico.,Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Nuevo Leon, Monterrey, Mexico
| | - Katiushka Arevalo-Niño
- Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, Nuevo Leon, San Nicolas de los Garza, Mexico
| | - Yolanda Gutierrez-Puente
- Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, Nuevo Leon, San Nicolas de los Garza, Mexico
| | - Jose Luis Montiel-Hernandez
- Facultad De Farmacia, Coordinacion De Posgrado, Universidad Autonoma del Estado de Morelos, Morelos, Cuernavaca, Mexico
| | - Victor Hugo Urrutia-Baca
- Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Nuevo Leon, Monterrey, Mexico
| | | | - Myriam Angelica De la Garza-Ramos
- Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, Nuevo Leon, San Nicolas de los Garza, Mexico. .,Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Nuevo Leon, Monterrey, Mexico. .,Facultad de Odontología, Universidad Autonoma de Nuevo Leon, Nuevo Leon, Monterrey, Mexico. .,Facultad de Odontología/CIDICS, Universidad Autonoma de Nuevo Leon Monterrey, San Nicolás de los Garza, Mexico.
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24
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Bhosale AN, Desai S, Patil S, Patil K, Jagtap C, Jajoo SS. Radicular Cyst Involving Deciduous Maxillary Incisor along with Bilateral Supernumerary Teeth: A Case Report. Int J Clin Pediatr Dent 2022; 15:218-221. [PMID: 37457217 PMCID: PMC10338939 DOI: 10.5005/jp-journals-10005-2358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023] Open
Abstract
Radicular cyst involving the deciduous dentition is rare. Most of the cases reported it with primary molar teeth with apical infection. But very rare literature is available regarding radicular cysts associated with primary incisors. Case report A case of 9-year-old boy, who had bilaterally impacted supernumerary teeth, had developed a radicular cyst associated with a previously traumatized and intruded right upper primary lateral incisor is reported. Supernumerary teeth and intruded primary lateral incisor were removed along with enucleation of a radicular cyst. Conclusion The importance of correct diagnosis and management of radicular cyst in pediatric patients is important as most of the radicular cysts of primary teeth go undiagnosed, which can affect the developing succedaneous tooth bud. How to cite this article Bhosale AN, Desai S, Patil S, et al. Radicular Cyst Involving Deciduous Maxillary Incisor along with Bilateral Supernumerary Teeth: A Case Report. Int J Clin Pediatr Dent 2022;15(2):218-221.
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Affiliation(s)
- Abhay N Bhosale
- Department of Pediatric Dentistry, Bharati Vidyapeeth (Deemed University) Dental College and Hospital, Pune, Maharashtra, India
| | - Sneha Desai
- Department of Pediatric and Preventive Dentistry, Bharati Vidyapeeth (Deemed University) Dental College and Hospital, Pune, Maharashtra, India
| | - Smita Patil
- Department of Pediatric and Preventive Dentistry, Bharati Vidyapeeth (Deemed University) Dental College and Hospital, Pune, Maharashtra, India
| | - Krishna Patil
- Department of Pedodontics and Preventive Dentistry, Bharati Vidyapeeth (Deemed University) Dental College and Hospital, Pune, Maharashtra, India
| | - Chetana Jagtap
- Department of Pediatric Dentistry, Bharati Vidyapeeth (Deemed University) Dental College and Hospital, Pune, Maharashtra, India
| | - Shweta S Jajoo
- Department of Pedodontics and Preventive Dentistry, Bharati Vidyapeeth (Deemed University) Dental College and Hospital, Pune, Maharashtra, India
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25
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Zhang R, Qi J, Gong M, Liu Q, Zhou H, Wang J, Mei Y. Effects of 45S5 bioactive glass on the remineralization of early carious lesions in deciduous teeth: an in vitro study. BMC Oral Health 2021; 21:576. [PMID: 34772397 PMCID: PMC8588588 DOI: 10.1186/s12903-021-01931-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/25/2021] [Indexed: 11/17/2022] Open
Abstract
Background Early childhood caries has been designated as a serious public health problem. The traditional restoration method is very challenging, especially in uncooperative patients. Non-invasive therapy, like remineralization agents, which have been developed to reverse the demineralization progress at the early stage of caries, may be a better choice. This study aimed to evaluate the remineralization efficacy of different concentrations of 45S5 bioactive glass (BAG) on artifical carious lesions of deciduous enamel.
Methods 65 caries-like enamel lesions of the deciduous teeth were assigned to 5 groups (n = 13) and transported to a 14 days pH-cycling: Group A: 2%BAG, Group B: 4%BAG, Group C: 6%BAG, Group D: 8%BAG, and Group E: deionized water (DDW, negative control). 8 sound (Group F) and 8 demineralized teeth (Group G) were prepared for contrast. The recovery power of mechanical property was evaluated by Vickers hardness test through the recovery of enamel microhardness (%REMH). Surface morphology, mass fraction of Ca and P ions, and Ca/P atomic ratio were analyzed by scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (EDX). Moreover, Fourier transform infrared spectroscopy equipped with attenuated total reflectance was used to identify the chemical structure of newly formed compounds. Results % REMH were (42.65 ± 1.35), (52.59 ± 2.96), (57.40 ± 1.72), (52.91 ± 2.55), (12.46 ± 2.81) in 2%BAG, 4%BAG, 6%BAG, 8%BAG, and DDW groups respectively. Micro-spherical particles were deposited in all BAG groups and 6% BAG showed the densest and most uniform surface. EDX analysis identified significantly higher Ca(wt%) and P(wt%) in four BAG groups than in the demineralized group (p < 0.005), while 6% BAG showed the highest mineral gain efficacy. The infrared spectrum demonstrated that newly mineralized crystals were consisted of type-B hydroxycarbonate apatite. Conclusion BAG possessed a promising remineralization effect on artificial lesions in deciduous enamel by recovering enamel surface mechanical property, morphology and chemical elements. Among them, 6% BAG performed the greatest overall efficacy. Acting as a new caries-arresting biomaterial, 45S5 BAG has the potential to facilitate the adaptation of better carious prevention strategies in children.
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Affiliation(s)
- Rui Zhang
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China.,Jiangsu Key Laboratory of Oral Diseases, Nanjing, China
| | - Jianyan Qi
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China.,Jiangsu Key Laboratory of Oral Diseases, Nanjing, China
| | - Min Gong
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China.,Jiangsu Key Laboratory of Oral Diseases, Nanjing, China
| | - Qian Liu
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China
| | - Hongyan Zhou
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China
| | - Jue Wang
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China
| | - Yufeng Mei
- Department of Pediatric Dentistry, The Affiliated Stomatological Hospital of Nanjing Medical University, Shanghai Road 1st, Nanjing, 210029, China.
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26
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Orilisi G, Monterubbianesi R, Notarstefano V, Tosco V, Vitiello F, Giuliani G, Putignano A, Orsini G. New insights from Raman MicroSpectroscopy and Scanning Electron Microscopy on the microstructure and chemical composition of vestibular and lingual surfaces in permanent and deciduous human teeth. Spectrochim Acta A Mol Biomol Spectrosc 2021; 260:119966. [PMID: 34052763 DOI: 10.1016/j.saa.2021.119966] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/28/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
Teeth are characterized by a specific chemical composition and microstructure, which are related to their nature, permanent and deciduous, and to the sides, lingual and vestibular. Deeper knowledge in this topic could be useful in clinical practice to develop new strategies in restorative dentistry and in the choice of materials with the best performances. In this study, Raman MicroSpectroscopy (RMS), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectrometry (EDS), and Vickers MicroHardness (VMH) were exploited to: (1) identify the microstructure and the chemical/elemental composition of permanent and deciduous human teeth, also characterizing their lingual and vestibular sides, and (2) validate a new multidisciplinary analytical approach, for obtaining multiple information on calcified tissues. All applied techniques evidenced differences between permanent and deciduous teeth both in the lingual and vestibular sides. In particular, scanning electron micrographs identified areas with an irregular appearance in the vestibular and lingual sides, which presented also different VMH values. Moreover, RMS and EDS displayed a different chemical/elemental composition in outer and inner enamel and dentin, in terms of Mineral/Matrix, Crystallinity, Carbonates/phosphates, and concentrations by weight (%) of calcium, phosphorous, carbon, magnesium, and sodium. A good linear correlation was found between RMS spectral profiles and EDS and VMH measurements, suggesting that RMS may be considered a useful and non-destructive diagnostic tool for obtaining multiple information on calcified tissues.
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Affiliation(s)
- Giulia Orilisi
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Riccardo Monterubbianesi
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Valentina Notarstefano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy.
| | - Vincenzo Tosco
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Flavia Vitiello
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Giampaolo Giuliani
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Ancona, Italy.
| | - Angelo Putignano
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Giovanna Orsini
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
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27
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Preethy NA, Jeevanandan G, Mathew MG, Subramanian EM. Evaluation of Quality of Obturation Using Two Different Rotary Files and Hand Files in Primary Teeth: A Randomized Controlled Trial. Int J Clin Pediatr Dent 2021; 14:471-474. [PMID: 34824498 PMCID: PMC8585900 DOI: 10.5005/jp-journals-10005-1990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
AIM AND OBJECTIVE To estimate the obturation quality and instrumentation time on comparing traditional hand files and two rotary file types during root canal instrumentation in deciduous molars. MATERIALS AND METHODS Forty-five deciduous mandibular molars were taken and randomly allotted to three groups (n = 15). Group I: K-hand files, group II: ProTaper Gold rotary file, and group III: Kedo-SG Blue rotary files. Before and after root canal instrumentation, standardized digital radiography was taken and the instrumentation time was also noted. The recorded data were then subjected to statistical analysis utilizing SPSS Software version 22.0. To compare the instrumentation time and quality of obturation between the groups, a Chi-square test and ANOVA with the level of significance at 0.05 were employed. RESULTS There was no significant difference recorded with reference to the quality of obturation (p > 0.05). However, the difference was noticed to be statistically significant when the instrumentation time between the two rotary groups and the manual instrumentation groups was taken into account (p < 0.05). The rotary systems ProTaper Gold and Kedo-SG Blue exhibited a significantly less instrumentation time on comparing with that of the hand files. CONCLUSION Concerning the quality of obturation, all three file groups demonstrated almost a similar performance. However, there was a significant difference noticed in the instrumentation time with the use of manual instrumentation in comparison to rotary instrumentation in deciduous teeth. HOW TO CITE THIS ARTICLE Preethy NA, Jeevanandan G, Mathew MG, et al. Evaluation of Quality of Obturation Using Two Different Rotary Files and Hand Files in Primary Teeth: A Randomized Controlled Trial. Int J Clin Pediatr Dent 2021;14(4):471-474.
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Affiliation(s)
- Neethu Ann Preethy
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Ganesh Jeevanandan
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Mebin George Mathew
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Erulappan M Subramanian
- Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
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28
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Xiong H, Chen K. Multipotent stem cells from apical pulp of human deciduous teeth with immature apex. Tissue Cell 2021; 71:101556. [PMID: 34082260 DOI: 10.1016/j.tice.2021.101556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 01/09/2023]
Abstract
Isolation of high-quality human postnatal stem cells from accessible sources is an important goal for dental tissue engineering. Stem cells from developing organs are a better cell source but are hard to obtain. With extensive caries that are difficult to restore, the extracted deciduous tooth with an immature apex is a developing organ for investigation. In the present study, a cell population from the tip of apical pulp of human deciduous teeth with an immature apex was isolated and termed apical pulp-derived cells of deciduous teeth (De-APDCs). De-APDCs expressed STRO-1, CD44, CD90 and CD105 but not CD34 or CD45. Furthermore, De-APDCs demonstrated a significantly higher clonogenic and proliferative ability and osteo/dentinogenic differentiation capacity than dental pulp cells from exfoliated deciduous teeth (De-DPCs) (P < 0.05). Differentiation potential toward adipogenic, neurogenic and chondrogenic lineages was also observed in induced De-APDCs. In addition, after De-APDCs were seeded into hydroxyapatite/tricalcium phosphate (HA/TCP) scaffolds and transplanted into nude mice, they were able to regenerate dentin/pulp-like structures aligned with human odontoblast-like cells. In conclusion, De-APDCs, which are derived from a developing tissue, represent an accessible and prospective cell source for tooth regeneration.
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29
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Bianchi RMD, Pascareli-Carlos AM, Floriano I, Raggio DP, Braga MM, Gimenez T, Holanda MC, da Silva GS, de Natal KH, Tedesco TK. Impact of non-restorative cavity control on proximal carious lesions of anterior primary teeth on the tooth survival and patient-centered outcomes (CEPECO 2): study protocol for a non-inferiority randomized clinical trial. BMC Oral Health 2021; 21:167. [PMID: 33789643 PMCID: PMC8011071 DOI: 10.1186/s12903-021-01524-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 03/18/2021] [Indexed: 11/29/2022] Open
Abstract
Background Studies have questioned the necessity of restoring cavitated carious lesion on primary teeth, once the control of biofilm is the most important factor to arrest these lesions. This randomized clinical trial aimed to compare the survival of teeth treated with a non-restorative cavity control (NRCC) compared to resin composite restorations (RCR) on proximal carious lesion in anterior primary teeth, as well as the impact of these treatments on patient-centered outcomes. Methods A randomized clinical trial with two parallels arms (1:1) will be conducted. Children between 3 and 6 years old will be selected from the Center of Clinic Research of Pediatric Dentistry of Ibirapuera University (UNIB), a dental trailer (FOUSP) located on Educational Complex Professor Carlos Osmarinho de Lima, the Pediatric Dentistry Clinic of Santa Cecília University and from the Pediatric Dentistry Clinic of University Center UNINOVAFAPI. One hundred and forty-eight teeth will be randomly distributed in two experimental groups: (1) Selective removal of carious tissue and RCR; or (2) NRCC through cavity enlargement using a metallic sandpaper. The primary outcome will be tooth survival after 6, 12, 18 and 24 months. The duration and the cost of dental treatments will be considered for the estimation of the cost-effectiveness of the evaluated treatments. The discomfort reported by the participants will be measured after each treatment using the FIS scale. The participants’ satisfaction and perception of the parents/legal guardians will be evaluated through questionnaires. For the primary outcome, Kaplan–Meier’s survival and Long-Rank test will be used for comparison between the two groups. All the variables will be modeled by Cox regression with shared fragility. Significance will be considered at 5%. Discussion The NRCC could be an option to manage carious lesions on proximal surfaces of primary teeth, and the approach could be well accepted by the children and parents/legal guardians. Trial registration Clinicaltrials.gov registration: NCT03785730, Registered on December 18th 2018, first participant recruited 30/04/2019, https://clinicaltrials.gov/ct2/show/NCT03785730. Ethics Reference No: 91569118.8.0000.5597. Trial Sponsor: Universidade Ibirapuera. The Trial was prospectively registered.
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Affiliation(s)
- Renata M D Bianchi
- Graduate Program in Dentistry, Ibirapuera University, Av. Interlagos 1329, São Paulo, SP, 04661-100, Brazil
| | - Aline M Pascareli-Carlos
- Graduate Program in Dentistry, Ibirapuera University, Av. Interlagos 1329, São Paulo, SP, 04661-100, Brazil.,School of Dentistry, Universidade Do Norte, Uninorte, Av. Joaquim Nabuco, Centro, Manaus, 12811355, Brazil
| | - Isabela Floriano
- School of Dentistry, University Center UNINOVAFAPI, Rua Vitorino Orthiges Fernandes 6123, Teresina, Brazil
| | - Daniela P Raggio
- Department of Orthodontic and Pediatric Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, São Paulo, 2221, Brazil
| | - Mariana M Braga
- Department of Orthodontic and Pediatric Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, São Paulo, 2221, Brazil
| | - Thais Gimenez
- Graduate Program in Dentistry, Ibirapuera University, Av. Interlagos 1329, São Paulo, SP, 04661-100, Brazil
| | - Mariana C Holanda
- School of Dentistry, FAESF Faculty, Rua Olemar Alves de Sousa 401, Floriano, Brazil
| | - Gabriela S da Silva
- Department of Orthodontic and Pediatric Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, São Paulo, 2221, Brazil
| | - Karina H de Natal
- Department of Orthodontic and Pediatric Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, São Paulo, 2221, Brazil
| | - Tamara K Tedesco
- Graduate Program in Dentistry, Ibirapuera University, Av. Interlagos 1329, São Paulo, SP, 04661-100, Brazil.
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Xu L, Wang Y, Wu Z, Deng S. Salivary microbial community alterations due to probiotic yogurt in preschool children with healthy deciduous teeth. Arch Microbiol 2021; 203:3045-3053. [PMID: 33783590 DOI: 10.1007/s00203-021-02292-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 11/25/2022]
Abstract
Probiotics are considered valuable to human health since they improve intestinal microbial balance. Probiotics are orally taken and affect the oral microbiota, which is one of the most important parts of the human microbial community. However, there is little information on the effects of probiotics on the oral microbiota. Caries-free preschool children (N = 6) with complete deciduous dentition were enrolled and given 100 g probiotic yogurt daily for 1 year. Salivary samples were collected every 6 months and then sequenced by Illumina MiSeq system based on 16S rDNA V3-V4 hypervariable regions. The data were analyzed to obtain the changes in microbiota profiles before and after the probiotic yogurt consumption. The α diversity analysis showed that salivary microbial diversity and richness were similar between the groups. The β diversity analysis showed that salivary microbial community structure changed with the consumption of probiotic yogurt. The variation of the microbial community composition was mainly due to 9 genera; for 7 genera (Campylobacter, Haemophilus, Lautropia, Bacillus, Catonella, Lactococcus, and Solibacillus) increased, while 2 genera (Gemella, and Streptococcus) decreased. The variation of salivary microbiota structure and composition with the consumption of probiotic yogurt was revealed. This expands overall insights on the effects of probiotic products on oral microecology. It further provides a basis for predicting possible relations between probiotic interventions and oral health in preschool children.
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Affiliation(s)
- Lei Xu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, 310006, Zhejiang, China
| | - Yuan Wang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, 310006, Zhejiang, China
| | - ZhiFang Wu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, 310006, Zhejiang, China
| | - ShuLi Deng
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, 310006, Zhejiang, China.
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Arduim ADS, Gonçalves DP, Casagrande L, Lenzi TL. Is lentulospiral the best option for root canal filling of endodontically treated primary teeth? A systematic review and meta-analysis. Eur Arch Paediatr Dent 2021; 22:537-545. [PMID: 33763823 DOI: 10.1007/s40368-021-00615-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/27/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To evaluate the quality of root canal filling of primary teeth using lentulospiral in comparison with other instruments. METHODS Electronic databases (PubMed/MEDLINE, Scopus, TRIP, LILACS, and CENTRAL Cochrane) were searched up to Jan 2021. Clinical trials that compared the quality of root canal filling of endodontically treated primary teeth using lentulospiral with other instruments were included. Two reviewers independently selected the studies, extracted data, and assessed the risk of bias. Two outcomes were considered: inadequate root canal filling (under or overfilling) and presence of voids. Conventional meta-analyses were performed using a fixed-effects model. Statistical analyses were performed using RevMan5.3 at a significance level of 5%. RESULTS Of the 68 potentially relevant studies, eight were selected for full-text analysis, and three were included in the systematic review. The use of syringes resulted in a lower risk of presence of voids in the root canal filling compared to the use of lentulospiral (RR: 0.62 95% CI 0.45; 0.85). However, there was no difference between lentulospiral and bi-directional spiral (RR:1.17 95% CI: 0.90; 1.51). There was no significant difference between lentulospiral and syringes (RR: 1.37 95% CI 1.00; 1.87) considering the length of the root canal filling. The use of bi-directional spiral had a higher risk of inadequate root canal filling compared to the use of lentulospiral (RR: 1.75 95% CI: 1.12; 2.74). Two studies were at "high", and one study at "unclear" risk of bias in the key domains. CONCLUSIONS There is insufficient scientific evidence showing the superiority of using lentulospiral for the root canal filling in endodontically treated primary teeth. Due to the limited level of evidence, professionals may opt to choose the instrument based on their preferences.
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Affiliation(s)
- Andressa da Silva Arduim
- School of Dentistry, Post-Graduate Program in Pediatric Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
| | - Débora Plotnik Gonçalves
- School of Dentistry, Post-Graduate Program in Pediatric Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Luciano Casagrande
- School of Dentistry, Post-Graduate Program in Pediatric Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Tathiane Larissa Lenzi
- School of Dentistry, Post-Graduate Program in Pediatric Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
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Eissa MA, Mustafa Ali M, Splieth CH. Dental trauma characteristics in the primary dentition in Greifswald, Germany: a comparison before and after German unification. Eur Arch Paediatr Dent 2021; 22:783-789. [PMID: 33582957 PMCID: PMC8526480 DOI: 10.1007/s40368-021-00606-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/15/2021] [Indexed: 10/31/2022]
Abstract
BACKGROUND The data on the distribution and pattern of dental trauma in the primary dentition are very rare. AIM To investigate primary dental trauma patterns in relation to gender, age, time and cause for a recent paediatric cohort and to compare this with a historic one before German unification. METHODS This retrospective study compared the patterns of dental trauma injuries at the trauma centre at Greifswald University/Germany for a recent paediatric cohort (2014-16, 103 children) with a historic one (1974-1989, n = 120). The data contained details on etiology, injury types and treatment delivered for 450 injured teeth (247 historic, 203 recent). RESULTS In both cohorts, the occurrence was more common in males than females (63%/55%, resp.) with an age peak from 2 to 6 years. Maxillary incisors were most affected (89.6%/88.6%, resp.) and periodontal ligament injuries dominated (77.8%/90.3%, resp.). Almost half of the injuries occurred at home (46.6%), mostly due to falling (48.5%) or during playing (37.8%) in the recent paediatric cohort which provided better forensic data due to insurance issues and potential concern about child abuse. Advice and follow up was the most common approach in the recent paediatric cohort (76%). CONCLUSION Even after 30 years and a change in the health care system due to German unification, the patterns of dental traumatic injuries in the primary dentition were similar.
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Affiliation(s)
- M A Eissa
- Department of Preventive and Paediatric Dentistry, University of Greifswald, Walther-Rathenau-Straße 42, 17475, Greifswald, Germany
| | - M Mustafa Ali
- Taibah University College of Dentistry, Jannadah Bin Ummayah Road, Medinah, Saudi Arabia
| | - C H Splieth
- Department of Preventive and Paediatric Dentistry, University of Greifswald, Walther-Rathenau-Straße 42, 17475, Greifswald, Germany.
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Pragnère S, Auregan JC, Bosser C, Linglart A, Bensidhoum M, Hoc T, Nouguier-Lehon C, Chaussain C. Human dentin characteristics of patients with osteogenesis imperfecta: insights into collagen-based biomaterials. Acta Biomater 2021; 119:259-267. [PMID: 33122145 DOI: 10.1016/j.actbio.2020.10.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/05/2020] [Accepted: 10/22/2020] [Indexed: 11/28/2022]
Abstract
Osteogenesis imperfecta (OI), also known as "brittle bone disease", is a rare genetic disorder of the skeleton, whose most benign form I corresponds to autosomal dominant mutations in the genes encoding type I collagen (COLA1, COLA2). Several associated skeletal manifestations are often observed but, surprisingly, while dentin defects often reflect genetic bone disorders, about half of OI patients have no obvious oral manifestations. Here, we investigated the collagen, mineral and mechanical properties of dentin from deciduous teeth collected from patients with mild form of OI and displaying no obvious clinical signs of dentinogenesis imperfecta. For the first time, an increase in the hardness of OI dentin associated with an increase in mineral content compared to healthy patients was reported. In addition, OI altered the tissue characteristics of the dentin-enamel junction but the interfacial gradient was preserved. The impact of changes in molecular structure due to mutations in OI was assessed by Raman microspectroscopy. Our results highlighted a change in the hydroxyproline-proline ratio in direct association with collagen mineralization. Our findings suggest that the evaluation of teeth could be an important aid for mild types of OI that are often difficult to diagnose clinically and provide experimental evidence that hydroxyproline content should be considered in future studies on collagen-based biomaterials.
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Affiliation(s)
- S Pragnère
- Equipex IVTV, Centrale Innovation, 64 Chemin des Mouilles, 69130 Ecully, France
| | - J-C Auregan
- Université de Paris, B3OA, UMR CNRS 7052, INSERM U1271, 10 Avenue de Verdun, 75010 Paris, France; AP-HP, Antoine Béclère Université Paris-Saclay hospital, Orthopeadics Department, 157, rue de la Porte de Trivaux, 92140 Clamart, France
| | - C Bosser
- Equipex IVTV, Centrale Innovation, 64 Chemin des Mouilles, 69130 Ecully, France
| | - A Linglart
- Université de Paris Saclay, Le Kremlin-Bicêtre, France; AP-HP, Department of Endocrinology and Diabetology for children, Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, Filière OSCAR and Platform of expertise for rare diseases Paris-Sud, Bicêtre Paris-Saclay Hospital, Le Kremlin-Bicêtre, France
| | - M Bensidhoum
- Université de Paris, B3OA, UMR CNRS 7052, INSERM U1271, 10 Avenue de Verdun, 75010 Paris, France
| | - T Hoc
- Université de Paris, B3OA, UMR CNRS 7052, INSERM U1271, 10 Avenue de Verdun, 75010 Paris, France; Mechanical Department, MSGMGC, Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France.
| | - C Nouguier-Lehon
- Université de Lyon, LTDS UMR CNRS 5513, Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France
| | - C Chaussain
- Université de Paris, Dental School, UR2496, Montrouge, F-92120, France; AP-HP Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism (OSCAR, ERN Bond), Dental Medicine Department, Bretonneau Hospital, GHN, 75018 Paris, France
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Villemur Moreau L, Dicky O, Mas E, Noirrit E, Marty M, Vaysse F, Olives JP. Oral manifestations of celiac disease in French children. Arch Pediatr 2021; 28:105-10. [PMID: 33341334 DOI: 10.1016/j.arcped.2020.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 07/16/2020] [Accepted: 11/15/2020] [Indexed: 12/22/2022]
Abstract
Celiac disease (CD) is an immune-mediated systemic disorder caused by ingestion of the gluten found in wheat, rye, and barley. The currently estimated prevalence in children is about 1%. CD is a chronic enteropathy with gastrointestinal manifestations including diarrhea, abdominal distension and weight loss, but extra-intestinal features are increasingly being reported. Dental and oral manifestations such as dental enamel defects (ED), delay in dental eruption, and recurrent aphthous stomatitis (RAS) are well-recognized manifestations of CD. The aim of this study was to compare the frequency of oral manifestations (ED, RAS and delay in dental eruption) on deciduous and permanent teeth between children with CD and a control population. An oral examination was performed on 28 CD children and 59 control children. All children were younger than 12 years old and had deciduous or mixed dentition. CD children had significantly more ED and RAS than the control group (67.9% vs. 33.9% P=0.004 and 50.0% vs. 21.8% P=0.011, respectively). No delay in dental eruption was observed in CD children. ED were mainly grade I and II of Aine's classification (color defects and slight structural defects). ED were more often seen on CD children's deciduous teeth than on permanent teeth (57.1% and 13.6%, respectively; P<0.001). The main teeth affected by ED are the second molar and canines of the deciduous teeth, and the first molar, central incisor, and lateral incisors of the permanent teeth. RAS and ED that were symmetrical in all quadrants and occurred firstly in teeth that mineralize during the first year of life both seem to be signs of CD. Thus, more information for dentists and pediatricians on these oral manifestations should help improve detection of CD.
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Cho VY, King NM, Anthonappa RP. Correlating spacing in the primary dentition and caries experience in preschool children. Eur Arch Paediatr Dent 2020; 22:393-397. [PMID: 32964406 DOI: 10.1007/s40368-020-00566-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 09/07/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To evaluate the correlation between spacing in the primary dentition and caries experience. METHODS One hundred seventy-four clinical records, including photographs during 2017-2019 were assessed for primate, generalised and interdental spaces. The mean of decayed, missing or filled teeth and surfaces (dmft and dmfs) were recorded to quantify the caries experience. Linear regression analyses were used to ascertain correlations between spacing and dental caries. The strength of the associations was quantified using odds ratio (OR) and 95% confidence interval (CI). RESULTS Ninety-seven boys and 77 girls were included in the final analysis. Approximately 41% of children had primate space in all four quadrants, and 15% of children had no primate spaces in all four quadrants. 50% of children did not exhibit generalised spacing, while 39% of children showed interdental spacing. Children with no primate space had approximately five surfaces higher dmfs score compared to those with primate space in all four quadrants (95% CI - 9.27 to - 1.23; p < 0.05). Similarly, children with no primate space in the mandible had 6.12 surfaces higher dmfs score compared to those with primate space in the mandibular arch (95% CI - 10.07 to - 2.17; p < 0.05). CONCLUSIONS Preschool children with no primate space exhibited a 50% increase in dmfs scores compared to children with primate space.
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Affiliation(s)
- V Y Cho
- Paediatric Dentistry, UWA Dental School, The University of Western Australia, 17 Monash Avenue, Perth, WA, 6009, Australia.
| | - N M King
- Paediatric Dentistry, UWA Dental School, The University of Western Australia, 17 Monash Avenue, Perth, WA, 6009, Australia
| | - R P Anthonappa
- Paediatric Dentistry, UWA Dental School, The University of Western Australia, 17 Monash Avenue, Perth, WA, 6009, Australia
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Sari Quoos AR, Noal FC, Assunção CM, Rodrigues JA, da Silva CS, Epifânio M, Casagrande L, Ferreira CT, de Araújo FB. Erosive Tooth Wear and Erosive Esophagitis in Children: An Observational Study in Porto Alegre, Brazil. Caries Res 2020; 54:266-273. [PMID: 32911465 DOI: 10.1159/000509460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 06/12/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to establish and compare the prevalence and severity of erosive tooth wear (ETW) in children with and without erosive esophagitis. Children aged 5-12 years, scheduled for upper digestive endoscopy at the Pediatric Gastroenterology Service of the Children's Hospital Santo Antonio, Porto Alegre, Brazil, were eligible to participate in this study. Patients who presented erosive esophagitis at endoscopy were defined as gastroesophageal reflux disease (GERD) carriers, and the severity was described according to the Los Angeles classification. The oral cavity examination was performed by a trained and calibrated dentist and ETW was classified using the Basic Erosive Wear Examination (BEWE) index. Parents/guardians answered a questionnaire about the patients' diets and frequency of consumption of acidic foods and beverages. A total of 110 children were included in the study. Erosive esophagitis was observed in 24 patients (21.8%) and all of them (100%) presented ETW, showing a statistically significant association between these 2 conditions (p < 0.05). Among children who did not present with erosive esophagitis (n = 86), 54 (64.3%) had an ETW risk level of none according to their BEWE scores (0-2). The results of this study showed a statistically significant association between erosive esophagitis and ETW, thus it can be concluded that it is important to recognize groups at risk of ETW and act together with medical professionals to ensure adequate oral health for these patients.
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Affiliation(s)
| | - Fernanda Coradini Noal
- School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Cristiane Meira Assunção
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Jonas A Rodrigues
- School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Carolina Soares da Silva
- Pediatric Gastroenterology Unit of the Children's Hospital Santo Antonio, Santa Casa Hospital Complex, Porto Alegre, Brazil
| | - Matias Epifânio
- Pediatric Gastroenterology Unit of the Children's Hospital Santo Antonio, Santa Casa Hospital Complex, Porto Alegre, Brazil
| | - Luciano Casagrande
- School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Cristina Targa Ferreira
- Pediatric Gastroenterology Unit of the Children's Hospital Santo Antonio, Santa Casa Hospital Complex, Porto Alegre, Brazil
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Abstract
Aim To evaluate the effectiveness of three different bleaching agents in permanent and primary teeth. Materials and methods The study was done on 60 freshly extracted single-rooted teeth (30 permanent and 30 primary incisors) with intact coronal portion. The teeth were artificially stained with whole blood as the staining medium in a high-speed centrifuge. The discolorations were determined by the use of 3D Master Vita shade guide. The conventional endodontic treatment procedures were completed in all the test samples. The test samples were divided into group I (permanent teeth) and group II (primary teeth). The test samples were further divided into three subgroups according to the experimental materials used for bleaching [group IA—10% carbamide peroxide (CP), group IIB—9.5% hydrogen peroxide (HP), and group IIIC—10% sodium perborate (SP)]. The samples were evaluated at 7 days and 14 days after the completion of intracoronal bleaching procedure. Results The CP group showed lowest shade values, and SP group showed the highest shade values after 14 days in both permanent and primary teeth. The CP showed the significant difference in the shade at 7 days and 14 days in permanent teeth. No statistically significant difference was observed between the three experimental at the 7 days and 14 days in the primary teeth. Conclusion The CP is effective in permanent teeth after 7 days and 14 days of intracoronal bleaching. The three experimental materials are equally effective in the primary teeth bleaching after 7 days and 14 days. How to cite this article Behl M, Patnana AK, Khanna V. Evaluation of Three Different Bleaching Agents in Permanent and Primary Teeth: An In Vitro Study. Int J Clin Pediatr Dent 2020;13(2):130–135.
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Affiliation(s)
- Manisha Behl
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Arun K Patnana
- Department of Dentistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Vikram Khanna
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Kirti Chaudhry
- Department of Dentistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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Dezhurko-Korol VA, Novozhilova NE, Makeeva IM, Arkhipova AY, Moisenovich MM, Akhmadishina LV, Lukashev AN, Semenov AM, Leontieva MR, Byakova SF. The influence of centrifugation and inoculation time on the number, distribution, and viability of intratubular bacteria and surface biofilm in deciduous and permanent bovine dentin. Arch Oral Biol 2020; 114:104716. [PMID: 32325265 DOI: 10.1016/j.archoralbio.2020.104716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/11/2020] [Accepted: 03/27/2020] [Indexed: 11/27/2022]
Abstract
The present study aimed to assess the influence of centrifugation and inoculation time on the number, distribution, and viability of intratubular bacteria and surface monospecies E. faecalis biofilm. MATERIALS AND METHODS Forty-four semicylindrical specimens cut from primary (n = 22) and permanent (n = 22) bovine teeth were randomly assigned to the experimental groups. Teeth of each type were inoculated with E. faecalis with and without centrifugation for 1 and 14 days. The number, localization, viability of bacteria and depth of their penetration were assessed with bacterial culturing of dentin shavings, scanning electron microscopy (SEM) and confocal laser electron microscopy (CLSM). Three-way ANOVA with post-hoc Tukey test were used to assess the influence of different experimental setups on dentin infection. RESULTS Severe dentin infection was observed in permanent and deciduous teeth after centrifugation and 1-day incubation: bacteria reached the full length of dentinal tubules and colony-forming units were too numerous to count. The volume of green fluorescence didn't differ significantly in permanent teeth compared with deciduous (p = 1.0). After 1-day stationary inoculation, small number of cultivable bacteria and few viable bacteria in dentinal tubules were found in both groups. After 14-day stationary inoculation, the dentin infection according to CLSM was deeper in deciduous teeth compared with permanent (p = 0.006 and p = 0.019 for centrifugation and stationary inoculation, respectively). CONCLUSION The most even and dense dentin infection was observed in primary and permanent bovine teeth after centrifugation and 1-day inoculation, and in deciduous teeth after 14-day stationary inoculation.
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Affiliation(s)
- Viktoria A Dezhurko-Korol
- Institute of Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Mojaiskii val str., 11, 121059б, Moscow, Russia
| | - Nina E Novozhilova
- Institute of Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Mojaiskii val str., 11, 121059б, Moscow, Russia.
| | - Irina M Makeeva
- Institute of Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Mojaiskii val str., 11, 121059б, Moscow, Russia
| | - Anastasia Yu Arkhipova
- Department of Biology, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119991, Moscow, Russia
| | - Mihail M Moisenovich
- Department of Biology, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119991, Moscow, Russia
| | - Ludmila V Akhmadishina
- E.I. Martsinovsky Institute of Medical Parasitology and Tropical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), M. Pirogovskaya str., 20-1, 119435, Moscow, Russia
| | - Alexander N Lukashev
- E.I. Martsinovsky Institute of Medical Parasitology and Tropical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), M. Pirogovskaya str., 20-1, 119435, Moscow, Russia
| | - Alexander M Semenov
- Department of Biology, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119991, Moscow, Russia
| | - Maria R Leontieva
- Department of Biology, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119991, Moscow, Russia
| | - Svetlana F Byakova
- Institute of Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Mojaiskii val str., 11, 121059б, Moscow, Russia
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Abstract
Pulpectomy is one of the most important procedures in maintaining the necrotic primary teeth until physiologic exfoliation. In clinical practice, time efficacy is invaluable, especially in pediatric endodontics, where unpredictability and difficulty of root canal morphology adds to a clinician's challenge. The success of a pulpectomy procedure mainly depends upon the biomechanical preparation of the root canal systems. With the advent of NiTi rotary files, adult endodontic procedures have been rendered easy, but its popularity in pedodontic practice is limited. Therefore, the purpose of this article is to review the use of NiTi rotary files for root canal instrumentation in primary teeth. How to cite this article Chauhan A, Saini S, Dua P, et al. Rotary Endodontics in Pediatric Dentistry: Embracing the New Alternative. Int J Clin Pediatr Dent 2019;12(5):460-463.
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Affiliation(s)
- Ananya Chauhan
- Department of Paedodontics and Preventive Dentistry, Himachal Institute of Dental Sciences, Sirmour, Himachal Pradesh, India
| | - Sheeba Saini
- Department of Paedodontics and Preventive Dentistry, Himachal Institute of Dental Sciences, Sirmour, Himachal Pradesh, India
| | - Parminder Dua
- Department of Paedodontics and Preventive Dentistry, Himachal Institute of Dental Sciences, Sirmour, Himachal Pradesh, India
| | - Ritu Mangla
- Department of Paedodontics and Preventive Dentistry, Himachal Institute of Dental Sciences, Sirmour, Himachal Pradesh, India
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Brar GS, Bajaj N, Bhola M, Brar JK. Clinical Evaluation of Root Resorption and its Correlation with Obturation Quality in Pulpectomized Deciduous Teeth with Different Obturating Materials: An In vivo Study. Contemp Clin Dent 2020; 10:243-248. [PMID: 32308285 PMCID: PMC7145250 DOI: 10.4103/ccd.ccd_448_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Aims and Objectives: The aim was to evaluate the root resorption in pulpectomized deciduous teeth and its correlation with obturation quality using zinc oxide and eugenol (ZOE), Metapex and Endoflas at the interval of 6 and 12 months. Materials and Methods: A total of 150 infected primary mandibular molars were randomly and equally divided into three subgroups (n = 50 each): Group 1 (ZoE), Group 2 (Metapex), and Group 3 (Endoflas) based on the obturation material preferred. The teeth were clinically and radiographically evaluated at 6 and 12 months' postoperatively by another investigator who was blinded to the type of filling material that was used in each tooth. Kruskal–Wallis test, Mann–Whitney Test, and Wilcoxon Signed-Rank Test was used for statistical analysis. Results: When the obturation quality was assessed, the optimal filling was found in 78% of the cases while the rest have underfilling (9%) and overfilling (13%). The incidence of overfilling was higher in the cases with some root resorption. After 12 months, Group 2 showed maximum variation with the highest incidence (70%) of extensive resorption both interradicular and intraradicular (Grade 3 score) followed by Group 1 (26%) and Group 3 (16%), respectively. Conclusion: Among all the materials, Endoflas showed the highest success rate with least incidence of resorption both outside and within the root canal (hollow tube effect) whereas least success rate was observed with Metapex having the hollow tube effect in majority of the cases (70%) after the follow-up of 12 months.
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Affiliation(s)
- Gurlal Singh Brar
- Department of Pedodontics and Preventive Dentistry, Dasmesh Institute of Research and Dental Sciences, Faridkot, Punjab, India
| | - Nitika Bajaj
- Department of Pedodontics and Preventive Dentistry, Dasmesh Institute of Research and Dental Sciences, Faridkot, Punjab, India
| | - Meenu Bhola
- Department of Pedodontics and Preventive Dentistry, Dasmesh Institute of Research and Dental Sciences, Faridkot, Punjab, India
| | - Jaskirat Kaur Brar
- Department of Conservative Dentistry and Endodontics, Dasmesh Institute of Research and Dental Sciences, Faridkot, Punjab, India
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Ellana Jermiah J, Rao A, Srikant N, Rao A, Suprabha BS. Comparative Evaluation of Three Obturating Techniques in Primary Molars: An in Vivo Study. J Clin Pediatr Dent 2019; 43:372-5. [PMID: 31657988 DOI: 10.17796/1053-4625-43.6.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives: The purpose of this study was to evaluate and compare the quality of obturation between the two tested methods for root canal filling with a newer system in primary teeth. Study design: A total of 104 canals were prepared and obturated using zinc oxide eugenol paste. The three delivery systems compared were: Rotary lentulospiral and Navitip® withNavitip® Double Sideport. Radiographs were used to evaluate the canals for length of obturation and presence of voids. Results: The data were analyzed using chi-square tests. Significant differences was seen between the three groups for the presence of voids (p value =0.042) with less voids in Navitip® Double Sideport. There were no difference between the three groups for the extent of filling (p value=0.170). Conclusion- Navitip® Double Sideport showed the better results in terms of extent of obturation and absence of voids when compared to the Rotary lentulospiral and Navitip®.
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Reed SG, Miller CS, Wagner CL, Hollis BW, Lawson AB. Toward Preventing Enamel Hypoplasia: Modeling Maternal and Neonatal Biomarkers of Human Calcium Homeostasis. Caries Res 2019; 54:55-67. [PMID: 31665727 PMCID: PMC7299520 DOI: 10.1159/000502793] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 08/15/2019] [Indexed: 01/01/2023] Open
Abstract
AIM The aim of this study was to assess biomarkers of calcium homeostasis and tooth development, in mothers during pregnancy and their children at birth, for enamel hypoplasia (EH) in the primary maxillary central incisor teeth. METHODS Bayesian methodology was used for secondary data analyses from a randomized, controlled trial of prenatal vitamin D3 supplementation in healthy mothers (N = 350) and a follow-up study of a subset of the children. The biomarkers were serum calcium (Ca), phosphorus (P), intact parathyroid hormone (iPTH), total circulating 25-dihydroxyvitamin D (25(OH)D), and 1,25-dihydroxyvitamin D (1,25(OH)2D). The maternal biomarkers were assayed monthly during pregnancy, and the child's biomarkers were derived from cord blood. Digital images of the child's 2 teeth were scored for EH using Enamel Defects Index criteria for each of the incisal, middle, and cervical regions for an EH extent score. RESULTS The child EH prevalence was 41% (60/145), with most defects present in the incisal and middle tooth regions. Cord blood iPTH and 1,25(OH)2D levels were significantly associated with EH extent after controlling for maternal factors. For every 1 pg/mL increase in cord blood iPTH, the EH extent decreased by approximately 6%. For every 10 pg/mL increase in cord blood 1,25(OH)2D, the EH extent increased by almost 30% (holding all other terms constant and adjusting for subject-level heterogeneity). The relationship between maternal 25(OH)D and maternal mean iPTH varied significantly by EH extent. CONCLUSION The results suggest possible modifiable relationships of maternal and neonatal factors of calcium homeostasis during pregnancy and at birth for EH, contributing to the frontier of knowledge regarding sound tooth development for dental caries prevention.
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Affiliation(s)
- Susan G Reed
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina, USA,
| | - Cameron S Miller
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Carol L Wagner
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Bruce W Hollis
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Andrew B Lawson
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
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Hecksher F, Vidigal B, Coelho P, Otoni D, Alvarenga C, Nunes E. Endodontic Treatment in Artificial Deciduous Teeth through Manual and Mechanical Instrumentation: A Pilot Study. Int J Clin Pediatr Dent 2019; 12:15-17. [PMID: 31496565 PMCID: PMC6710946 DOI: 10.5005/jp-journals-10005-1581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
“In vitro” studies seek to simulate actual biological conditions in the laboratory providing principles to be studied later. To facilitate the development of new techniques of root instrumentation in primary teeth and to ensure the integrity and function of the element, this study aimed to demonstrate the technological advances in endodontics through endodontic treatment performed on artificial primary teeth using a rotary instrumentation system and reciprocation. Instrumentation of the root canal was performed via a manual, rotary, and Reciproc system. Results showed that current systems can facilitate endodontic treatment in one session. These procedures become increasingly easy with the help of technological advances in dentistry.
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Affiliation(s)
| | - Bruno Vidigal
- Department of Dentistry, Newton Paiva, Minas Gerais, Brazil
| | | | - Diassanam Otoni
- Department of Dentistry, São Leopoldo Mandic, Minas Gerais, Brazil
| | | | - Eduardo Nunes
- Department of Dentistry, PUC-Minas, Minas Gerais, Brazil
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Hecksher F, Vidigal B, Coelho P, Otoni D, Alvarenga C, Nunes E. Endodontic Treatment in Artificial Deciduous Teeth by Manual and Mechanical Instrumentation: A Pilot Study. Int J Clin Pediatr Dent 2019; 11:510-512. [PMID: 31303739 PMCID: PMC6611541 DOI: 10.5005/jp-journals-10005-1566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Introduction “In vitro” studies seek to simulate actual biological conditions in the laboratory and providing principles to be studied later, to facilitate the development of new techniques of root instrumentation in primary teeth and to ensure the integrity and function of the element. Aim This study aimed to demonstrate the technological advances in endodontics by endodontic treatment performed on artificial primary teeth using a rotary instrumentation system and reciprocation. Materials and methods Instrumentation of the root canal was performed via a manual, rotatory and Reciproc system. Results The rotatory systems can facilitate endodontic treatment in one session. Conclusion These procedures become increasingly easy and rapid with the help of technological advances in dentistry. How to cite this article Hecksher F, Vidigal B, Coelho P, Otoni D, Alvarenga C, Nunes E. Endodontic Treatment in Artificial Deciduous Teeth by Manual and Mechanical Instrumentation: A Pilot Study. Int J Clin Pediatr Dent, 2018;11(6):510-512
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Affiliation(s)
- Fernanda Hecksher
- Department of Dentistry, PUC-Minas, Minas Gerais, Brazil.,Department of Dentistry, São Leopoldo Mandic, Minas Gerais, Brazil
| | - Bruno Vidigal
- Department of Dentistry, PUC-Minas, Minas Gerais, Brazil.,Department of Dentistry, Newton Paiva, Minas Gerais, Brazil
| | - Patricia Coelho
- Department of Dentistry, PUC-Minas, Minas Gerais, Brazil.,Department of Dentistry, Fainor, Minas Gerais, Brazil
| | - Diassanam Otoni
- Department of Dentistry, São Leopoldo Mandic, Minas Gerais, Brazil
| | | | - Eduardo Nunes
- Department of Dentistry, PUC-Minas, Minas Gerais, Brazil
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Dean MC, Spiers KM, Garrevoet J, Le Cabec A. Synchrotron X-ray fluorescence mapping of Ca, Sr and Zn at the neonatal line in human deciduous teeth reflects changing perinatal physiology. Arch Oral Biol 2019; 104:90-102. [PMID: 31176148 DOI: 10.1016/j.archoralbio.2019.05.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/06/2019] [Accepted: 05/21/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Our first objective was to review the evidence describing the appearance and microstructure of the neonatal line in human deciduous teeth and to link this with known changes in neonatal physiology occurring at and around birth. A second objective was to explore ways to improve identification of the neonatal line by mapping the pre- and postnatal distribution of Ca, Sr and Zn in deciduous cuspal enamel and superimposing these maps onto transmitted light micrographs that included a clear true section of the neonatal line. MATERIALS AND METHODS We used synchrotron X-ray fluorescence to map elemental distributions in pre- and postnatal enamel and dentine. Two deciduous canines and 5 deciduous molars were scanned with an X-ray beam monochromatised to 17.0 keV at either 10.0, 2.5 or 1.0 μm resolution and 10 ms integration time. RESULTS Calcium maps distinguished enamel and dentine but did not clearly demarcate tissues formed pre- or postnatally. Strontium maps reflected presumed pre- and postnatal maternal serum levels and what are likely to be diet-dependent regions of Sr enrichment or depletion. Prenatal Zn maps, particularly for dentine, mirror elevated levels in the fetus and in colostrum during the first few days of life. CONCLUSIONS The neonatal line, enamel dentine junction and surface enamel were all Zn-rich. Within the neonatal line Zn may be associated with increased crystallinity but also with caries resistance, both of which have been reported previously. Elemental mapping may improve the identification of ambiguous NNLs and so be useful in forensic and archaeological studies.
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Affiliation(s)
- M Christopher Dean
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK; Department of Earth Sciences, Centre for Human Evolution Research, Natural History Museum, Cromwell Road, London SW7 5BD, UK.
| | - Kathryn M Spiers
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Jan Garrevoet
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Adeline Le Cabec
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany
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Chen Y, Zhao Q, Yang X, Yu X, Yu D, Zhao W. Effects of cobalt chloride on the stem cell marker expression and osteogenic differentiation of stem cells from human exfoliated deciduous teeth. Cell Stress Chaperones 2019; 24:527-538. [PMID: 30806897 PMCID: PMC6527733 DOI: 10.1007/s12192-019-00981-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/23/2019] [Accepted: 02/07/2019] [Indexed: 12/19/2022] Open
Abstract
Stem cells from human exfoliated deciduous teeth (SHEDs) are a promising source for tissue engineering and stem cell transplantation. However, long-term in vitro culture and expansion lead to the loss of stemness of SHEDs, compromising their therapeutic benefits. Hypoxia plays an essential role in controlling the stem cell behavior of mesenchymal stem cells (MSCs). Thus, this study aimed to investigate the effects of cobalt chloride (CoCl2), a hypoxia-mimetic agent, on the stem cell marker expression and osteogenic differentiation of SHEDs. SHEDs were cultured with or without 50 or 100 μM CoCl2. Their proliferation, apoptosis, stem cell marker expression, migration ability, and osteogenic differentiation were examined. Culture with 50 and 100 μM CoCl2 increased the hypoxia-inducible factor-1 alpha (HIF-1α) protein levels in a dose-dependent manner in SHEDs without inducing significant cytotoxicity. This effect was accompanied by an increase in the proportion of STRO-1+ cells. CoCl2 significantly increased the expression of stem cell markers (OCT4, NANOG, SOX2, and c-Myc) in a dose-dependent manner. The migration ability was also promoted by CoCl2 treatment. Furthermore, SHEDs cultured in osteogenic medium with CoCl2 showed a dose-dependent reduction in alkaline phosphatase (ALP) activity and calcium deposition. The expression of osteogenic-related genes was also suppressed by CoCl2, especially in the 100-μM CoCl2 group. In conclusion, CoCl2 increased the expression of stem cell markers and inhibited the osteogenic differentiation of SHEDs. These findings may provide evidence supporting the use of in vitro hypoxic environments mimicked by CoCl2 in assisting the clinical application of SHEDs.
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Affiliation(s)
- Yijing Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, No. 56 Lingyuan West Road, Guangzhou, 510055, China
| | - Qi Zhao
- Xianning Central Hospital, The First Affiliated Hospital Of Hubei University of Science and Technology, Xianning, 437000, China
| | - Xin Yang
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, No. 56 Lingyuan West Road, Guangzhou, 510055, China
| | - Xinlin Yu
- International Department, The Affiliated High School of SCNU, Guangzhou, 510630, China
| | - Dongsheng Yu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, No. 56 Lingyuan West Road, Guangzhou, 510055, China.
| | - Wei Zhao
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, No. 56 Lingyuan West Road, Guangzhou, 510055, China.
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Harris-Ricardo J, Fang L, Herrera-Herrera A, Fortich-Mesa N, Olier-Castillo D, Cavanzo-Rojas D, González-Quintero R. Bacterial profile of the supragingival dental biofilm in children with deciduous and early mixed dentition using next generation sequencing (HOMINGS) technique. Enferm Infecc Microbiol Clin 2018; 37:448-453. [PMID: 30545671 DOI: 10.1016/j.eimc.2018.10.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/19/2018] [Accepted: 10/23/2018] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Tdescribe the bacterial profile of the supragingival biofilm of children with temporary dentition (CTD) and early mixed dentition (CEMD), with the next-generation sequencing (HOMINGS) technique. METHOD A comparative descriptive study was carried out with 30 systemically healthy children aged between 5 and 7 years old from public schools in Cartagena-Colombia. All participants were caries-free applying the criteria of the International Caries Detection and Assessment System (ICDAS II) and had no caries experience according to the Decayed, Missing and Filled Teeth (DMFT) index. Supragingival biofilm samples were collected. Bacterial DNA was extracted and used for analysis using HOMINGS (Human Oral Microbe Identification using Next-Generation Sequencing) based on the sequencing of the V3-V4 region of the 16S rRNA gene using the Illumina MiSeq platform (V3-V4 primers). RESULTS A total of 360 species-specific and 65 genus-specific probes were identified. The bacterial genus most predominant in CTD were Streptococcus, Actinomyces, Veillonella and Fusobacterium (29.2% of all bacterial DNA present), while in CEMD the most predominant were Streptococcus, Leptotrichia, TM7 and Porphyromonas (24.5% of all bacterial DNA present). The bacterial species with the highest relative abundance in the oral biofilm microbiome from CTD were Streptococcus sanguinis, Rothia aeria, Gemella haemolysans, while in CEMD they were S. sanguinis, Leptotrichia spp. HOT-417 and Leptotrichia spp. HOT-498. The Shannon diversity index was 2.77 (SD=0.26) for CTD and 3.01 (SD=0.39) for CEMD (P=0.06). CONCLUSIONS The analysis of the bacterial profile of the supragingival dental biofilm in children with DMFT, by means of HOMINGS showed low microbiological diversity both in presence and in relative abundance in terms of genus as well as bacterial species.
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Affiliation(s)
- Jonathan Harris-Ricardo
- Servicio de Microbiología Oral, Clínica Odontológica de la Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - Luis Fang
- Servicio de Microbiología Oral, Clínica Odontológica de la Corporación Universitaria Rafael Núñez, Cartagena, Colombia
| | - Alejandra Herrera-Herrera
- Servicio de Microbiología Oral, Clínica Odontológica de la Corporación Universitaria Rafael Núñez, Cartagena, Colombia
| | - Natalia Fortich-Mesa
- Servicio de Microbiología Oral, Clínica Odontológica de la Corporación Universitaria Rafael Núñez, Cartagena, Colombia
| | - Doris Olier-Castillo
- Servicio de Bacteriología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia
| | | | - Roberto González-Quintero
- Servicio de Microbiología Oral, Clínica Odontológica de la Corporación Universitaria Rafael Núñez, Cartagena, Colombia
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Makiguchi T, Imai H, Arakawa A, Tashiro A, Yonezu T, Shintani S. Development of Jaw and Deciduous Teeth in Japanese Children -Comparing Size of Crown and Alveolar Area between Today and 40 Years Ago. Bull Tokyo Dent Coll 2018; 59:171-181. [PMID: 30224611 DOI: 10.2209/tdcpublication.2017-0033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The purpose of the present study was to investigate change in the size of the jaw and deciduous teeth in Japanese children over the past 40 years by performing measurements on plaster models of the dental arch obtained from children born between 2007 and 2009 (2000s group) and children born between 1968 and 1974 (70s) group. A total of 61 children were enrolled in the 2000s group, comprising 25 boys (average age, 4 years 5 months) and 36 girls (average age, 4 years 4 months), and 93 children in the 70s group, comprising 45 boys (4 years 6 months) and 48 girls (4 years 4 months). The mesiodistal width of the crown, dental arch width, dental arch length, dental arch height, and available arch length in these groups were measured using a 3D measurement system and the sums of the mesiodistal width of the crown and tooth size-arch length discrepancies calculated. The results of the two groups were statistically compared and the following conclusions reached: the size of deciduous teeth has not changed statistically over the last 40 years; the size of the dental arch has decreased in boys (p<0.01), while remaining approximately the same in girls; and the tooth size-arch length discrepancy has decreased, especially in boys (p<0.01). These results indicate that the interdental spaces of the deciduous dentition have decreased, increasing the risk of crowding in Japanese children.
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Affiliation(s)
| | - Hiroki Imai
- Department of Pediatric Dentistry, Tokyo Dental College
| | | | - Ayako Tashiro
- Department of Pediatric Dentistry, Tokyo Dental College
| | - Takuro Yonezu
- Department of Pediatric Dentistry, Tokyo Dental College
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Akhil JEJ, Prashant B, Shashibushan KK. Comparative evaluation of three obturation techniques in primary incisors using digital intra-oral receptor and C.B.C.T-an in vitro study. Clin Oral Investig 2019; 23:689-96. [PMID: 29744724 DOI: 10.1007/s00784-018-2484-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 05/02/2018] [Indexed: 10/16/2022]
Abstract
OBJECTIVES Successful pulpectomy in primary teeth depends on quality of obturation. It can be evaluated using digital intra-oral receptor (D.I.O.R) and cone beam computed tomography (C.B.C.T). The purposes of this study were to compare 3 different obturation techniques such as lentulospiral, insulin syringe, and endodontic plugger in primary incisors and to evaluate its quality of obturation using D.I.O.R and C.B.C.T technique. MATERIALS AND METHODS Thirty-three extracted primary incisors were biomechanically prepared and obturated with zinc oxide eugenol cement by 3 different obturation techniques. The obturation was evaluated for length of obturation and voids using D.I.O.R and C.B.C.T methods. RESULTS There was a statistically significant difference between all the groups in length of obturation (P = 0.02) in both D.I.O.R and C.B.C.T. Significant differences (P = 0.03) were present in number of voids among 3 obturation techniques in C.B.C.T. Statistically more voids were observed with D.I.O.R in lentulospiral (P = 0.04) group and in insulin syringe (P = 0.02) group. CONCLUSIONS Acceptable result was obtained with lentulospiral in length of obturation compared to insulin syringe and endodontic plugger technique. Insulin syringe technique resulted in increased underfilling with least number of voids. More number of voids were seen in middle one-third and least number of voids were observed at apical one third of the root among all the 3 techniques of obturation. The study concluded that void identification is improved with D.I.O.R compared to C.B.C.T. CLINICAL RELEVANCE Lentulospiral reported effective length of obturation, while insulin syringe with least number of voids. D.I.O.R (2-Dimensional) is efficient in detecting voids compared to C.B.C.T (3-Dimensional) in obturated primary teeth.
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Shaweesh AI, Al-Batayneh OB. Association of weight and height with timing of deciduous tooth emergence. Arch Oral Biol 2018; 87:168-171. [PMID: 29304424 DOI: 10.1016/j.archoralbio.2017.12.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 12/06/2017] [Accepted: 12/29/2017] [Indexed: 11/24/2022]
Abstract
OBJECTIVES The aim of this study was to associate weight and height with the timing of deciduous tooth emergence. METHODS 1756 children, aged from 1 to 33 months (755 females and 1001 males) had been previously examined for the timing of deciduous tooth emergence and their weights and heights measured. Children were categorized into weight and height groups (underweight, normal, overweight, short stature, normal and tall stature). Probit regression analysis was used to calculate the ages at emergence of each deciduous tooth. Tooth emergence ages were compared pairwise across the weight and height groups. RESULTS The deciduous dentition emerged between 7.9-31.5, 7.8-29.6 and 6.3-26.5 months in the underweight, normal and overweight children, respectively. In the height groups, the ranges were 9.0-31.3, 7.4-27.0 and 6.7-24.3 in the short, normal and tall children, respectively. The extremes of weight and height were related to the times at deciduous tooth emergence where a substantial increase in weight or height was associated with earlier emergence, and vice versa. However, only canines, lateral incisors and upper central incisor showed statistically significant association with weight and none of the teeth exhibited statistically significant association with height. Moreover, no emergence sequence change was associated with weight and height. CONCLUSIONS The present study provides the first weight and height- specific data on the timing of deciduous tooth emergence. Although both weight and height are generally associated with the timing of deciduous tooth emergence, weight shows a stronger association for canines, lateral incisors and upper central incisor. The findings will aid assessing normal emergence timing in children with variant weights and heights.
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Affiliation(s)
- Ashraf I Shaweesh
- School of Dentistry and Health Sciences, Faculty of Science, Charles Sturt University, Wagga Wagga, New South Wales, 2678, Australia; Faculty of Dentistry, Jordan University of Science and Technology, PO Box 3030, Ramtha, Irbid, 22110, Jordan.
| | - Ola B Al-Batayneh
- Faculty of Dentistry, Jordan University of Science and Technology, PO Box 3030, Ramtha, Irbid, 22110, Jordan.
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