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Singhal P, Jaswal O, Thakur S. Mandibular Interincisor and Intercanine Width at Three Different Stages of Dentition: A Cross-sectional Study. Int J Clin Pediatr Dent 2024; 17:417-424. [PMID: 39144164 PMCID: PMC11320817 DOI: 10.5005/jp-journals-10005-2839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024] Open
Abstract
Background and objective Malocclusion is a manifestation of normal biological variability, defined as a misalignment of the teeth or an incorrect occlusion between the upper and lower dental arches. This study aimed to evaluate the mandibular intercanine primary, mixed, and permanent dentition in school children of Shimla, Himachal Pradesh. Materials and methods This cross-sectional study was conducted on 1,392 children between the ages of 4 and 18 years from schools that fulfilled the inclusion criteria. The dental casts were poured and further divided based on the dentition stage, i.e., primary, mixed, and permanent dentition stages. Mandibular arch widths-interincisor and intercanine were measured on the casts by a digital vernier caliper. Results The statistically significant difference was found as the interincisor width increased from primary to mixed dentition and between males and females for permanent dentition. Intercanine width significantly increases from primary to mixed dentition and gradually from mixed to permanent dentition stages. Conclusion The present study found that there is a significant increase in interincisor and intercanine width in the lower dental arch from primary dentition to permanent dentition. How to cite this article Singhal P, Jaswal O, Thakur S. Mandibular Interincisor and Intercanine Width at Three Different Stages of Dentition: A Cross-sectional Study. Int J Clin Pediatr Dent 2024;17(4):417-424.
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Affiliation(s)
- Parul Singhal
- Department of Pediatric and Preventive Dentistry, HP Government Dental College & Hospital, Shimla, Himachal Pradesh, India
| | - Oshin Jaswal
- Department of Pediatric and Preventive Dentistry, HP Government Dental College & Hospital, Shimla, Himachal Pradesh, India
| | - Seema Thakur
- Department of Pediatric and Preventive Dentistry, HP Government Dental College & Hospital, Shimla, Himachal Pradesh, India
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Boo Gordillo P, Marqués Martínez L, Borrell García C, García Miralles E. Relationship between Nutrition and Development of the Jaws in Children: A Pilot Study. CHILDREN (BASEL, SWITZERLAND) 2024; 11:201. [PMID: 38397313 PMCID: PMC10887185 DOI: 10.3390/children11020201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/22/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024]
Abstract
Craniofacial growth and development have been shown to be influenced by various environmental factors that impact child development. This study aims to analyze the different patterns of feeding during early childhood, starting from birth, and assess the variability of nutrition during the first stage of childhood, along with the habits developed, to study their impact on jaw development. The study was conducted on a sample of twenty-five patients aged 3 to 5, following approval from the ethics committee of the Catholic University of Valencia. Informed consent was obtained from the fathers, mothers, and/or legal guardians, who were administered surveys on habits and diet. Cephalometric measurements within the parameters of ideal occlusion were subsequently taken. While previous studies examined this subject, the findings are challenging to evaluate. However, this study identified significant associations (p = 0.001) between clinical measurements and children's eating habits. The growth and development of the craniofacial cavity are influenced by multiple factors, including a child's diet and habits. Nonetheless, further research is required to determine whether diet can be considered a determining factor in proper jaw growth.
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Affiliation(s)
- Paula Boo Gordillo
- Doctoral School, Faculty of Medicine and Health Sciences, Catholic University of Valencia, San Vicente Martir, 46001 Valencia, Spain;
| | - Laura Marqués Martínez
- Faculty of Medicine and Health Sciences, Catholic University of Valencia, San Vicente Martir, 46001 Valencia, Spain; (C.B.G.); (E.G.M.)
| | - Carla Borrell García
- Faculty of Medicine and Health Sciences, Catholic University of Valencia, San Vicente Martir, 46001 Valencia, Spain; (C.B.G.); (E.G.M.)
| | - Esther García Miralles
- Faculty of Medicine and Health Sciences, Catholic University of Valencia, San Vicente Martir, 46001 Valencia, Spain; (C.B.G.); (E.G.M.)
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Aydın H. Predictor Mandibular Dentoalveolar Features on the Occurrence of 1-Rooted/C-Shaped Mandibular Second Molar Teeth. Eur Endod J 2024; 9:65-72. [PMID: 37962052 PMCID: PMC10777082 DOI: 10.14744/eej.2023.91886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/01/2023] [Accepted: 08/01/2023] [Indexed: 11/15/2023] Open
Abstract
OBJECTIVE This study aimed to examine the mandible form features of the mandible, such as inter-second molar width, anteroposterior length, arch perimeter length, arch breadth, corpus height/width in the mandibular second molars (MnSM) region, and arch form, and the relation for the occasion of the 1-rooted/C-shaped. METHODS The study analyzed cone-beam computed tomography images of 215 male and 215 female Turkish patients to determine the prevalence of 1-rooted and C-shaped MnSM. Mandibular dentoalveolar characteristics of individuals with bilateral (1R-1R group) and unilateral (1R-2R group) 1-rooted MnSM were examined and compared with those with bilateral 2-roots (2R-2R group) MnSM. Statistical tests were performed using Chi-square, one-way ANOVA, Tukey, and binary logistic regression analysis at the 5% significance level. RESULTS The prevalence of 1-rooted and 1-rooted/C-shaped MnSM was 12.79% and 9.65%, respectively. Root fusion was more commonly present in females (p<0.05). In the 1R-1R group, the anteroposterior length was shorter than in the 2R-2R group (p<0.05). There was no difference between the groups for other features (p>0.05). CONCLUSION Although the study found a shorter anteroposterior length in the 1R-1R group, no feature was a predictive variable for 1-rooted/C-shaped MnSM.
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Affiliation(s)
- Hakan Aydın
- Department of Endodontics, Antalya Bilim University Faculty of Dentistry, Antalya, Türkiye
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Alaghbari SSA, Mohmmed BSA, Alalwani NNM, Sobhy MM, Qadi KA, Khawaji SA, Mhbob HO, Alsadi FM, Moaleem MMA. Analysis of the Facial Measurements and Dental Arch Dimensions for the Construction of Dental Prostheses among Adult Yemenis. J Contemp Dent Pract 2023; 24:595-604. [PMID: 38193184 DOI: 10.5005/jp-journals-10024-3511] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
AIM To investigate the dental arch dimension (width, length, and height) and facial measurements including inner-canthal width (ICW), bizygomatic width (BZW), inter-alar width (IAW), and mouth width (MW), and to assess the correlation between these facial measurements and dental arch width (canine width [CW], inter-first premolar width [I1PW], and inter-first molar width [I1MW]), to establish a preliminary reference for artificial teeth selection in Yemeni adult. MATERIALS AND METHODS The study included 80 individuals (40 males and 40 females) with symmetrical faces and normal class I occlusion ranging in age from 20 to 35. Maxillary and mandibular stone casts were made for each individual. The dimensions of dental casts and facial measurements, including ICW, BZW, IAW, and MW, were assessed using a digital caliper. The collected data were analyzed by using the SPSS software program. The descriptive statistics for each measurement were made. Differences between males and females were tested using an independent-sample t-test with p-values below 0.05 considered significant. Pearson correlation coefficient between facial measurements and dental arch width was also done. RESULTS Most dental arch dimensions and facial measurements exhibited larger mean values in the male than in the female group, with the greatest significant difference in the maxillary dental arch width and the lowest in mandibular dental arch length. A highly significant correlation is observed between ICW and maxillary canine width (CW) (r = 0.318, p = 0.004). In contrast, no significant correlation between dental arch width and BZW, IAW, and MW is shown. CONCLUSIONS Within this study's limitations, the ICW can determine the ideal dimension of the artificial teeth in the anterior maxillary arch. While the other facial parameters, including BZW, IAW, and MW, cannot be used for artificial teeth selection in Yemeni populations. CLINICAL SIGNIFICANCE The findings of this study established a reference database of facial measurements and their correlation to dental arch and teeth width in Yemeni populations. So, it can be implemented in artificial teeth and dental prostheses design and construction.
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Affiliation(s)
- Samar Sadeq Abdulrahman Alaghbari
- Department of Prosthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China; Department of Prosthodontics, College of Dentistry, Al-Hikma University, Sana'a, Yemen, Phone: +86 13201766120, e-mail: , Orcid: https://orcid.org/0009-0005-8500-5672
| | - Badea Saeed Abdu Mohmmed
- Department of Prosthodontics, Faculty of Dentistry, Sana'a University, Sana'a, Yemen, Orcid: https://orcid.org/0009-0006-4570-2702
| | - Nadhra Nasser Masood Alalwani
- Department of Prosthodontics, Faculty of Dentistry, Sana'a University, Sana'a, Yemen, Orcid: https://orcid.org/0009-0003-3943-1123
| | - Mohamed M Sobhy
- Department of Prosthetic Dental Science, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Khawla Ahmed Qadi
- Department of Dental Interns, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Salma Arar Khawaji
- Department of Dental Interns, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Hasan Oh Mhbob
- Administration Health, Advance Technology Dental Research Center, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fahad M Alsadi
- Administration Health, Advance Technology Dental Research Center, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed M Al Moaleem
- Department of Prosthetic Dental Science, College of Dentistry, Jazan University, Jazan, Saudi Arabia; Faculty of Dentistry, University of Ibn al-Nafis for Medical Sciences, Sana'a, Yemen
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Developing a three-dimensional statistical shape model of normal dentition using an automated algorithm and normal samples. Clin Oral Investig 2023; 27:759-772. [PMID: 36484849 DOI: 10.1007/s00784-022-04824-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 11/26/2022] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The statistical shape model (SSM) is a model of geometric properties of a set of shapes based on statistical shape analysis. The SSM develops an average model of several objects using an automated algorithm that excludes the operator's subjectivity. The aim of this study was to develop a three-dimensional (3D) SSM of normal dentition to provide virtual templates for efficient treatment. MATERIALS AND METHODS Dental casts were obtained from participants with normal dentition. After acquiring the 3D models, the SSMs of the individual teeth and whole dental arch were generated by an iterative closest point (ICP)-based rigid registration and point correspondences, respectively. Then, the individual tooth SSM was aligned to the whole dental arch SSM using ICP-based registration to generate an average model of normal dentition. RESULTS The generated 3D SSM showed specific morphological features of normal dentition similar to those previously reported. Moreover, on measuring the arch dimensions, all values in this study were similar to those previously reported using normal dentition. CONCLUSIONS The 3D SSM of normal dentition may increase the diagnostic efficiency of orthodontic treatments by providing a visual objective. It can be also used as a 3D template in various fields of dentistry. CLINICAL RELEVANCE Our SSM of normal dentition provides both quantitative and qualitative information on the 3D morphology of teeth and dental arches, which may provide valuable information on 3D virtual-setup, bracket fabrication, and aligner treatment.
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Jayasinghe R, Thilakumara I, Hettiarachchi P, Fonseka M, Nanayakkara C, Jayasinghe R. Morphometric analysis of maxillary arch dimensions using Cone Beam Computer Tomography (CBCT). J Oral Biol Craniofac Res 2022; 12:500-504. [PMID: 35755136 PMCID: PMC9218834 DOI: 10.1016/j.jobcr.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 10/18/2022] Open
Abstract
Knowledge of morphology of the maxillary arch is important in many spacialities of dentistry. This retrospective cross-sectional study was performed using 109 randomly selected maxillary CBCT images of patients in the age range of 18-60 from the archives in Faculty of Dental Sciences, University of Peradeniya, Sri Lanka. EzDent software was used for measurements. Measurements related to the width were acquired from coronal sections while the measurements related to antero-posterior dimensions were performed on axial sections. A majority had an oval shaped maxillary arch (64.8%) followed by V shaped one.(29.2%). The mean height of the alveolar ridge at the upper canine position was 8.9 mm and the mean height of the alveolar ridge at the first molar level was 20.1 mm. Mann Whitney U test was used to compare measurements of variables between males and females. Difference in the height of alveolar ridge at the junction of soft and hard palate, width of the alveolar ridge at the canine, first molar and second molar and also the antero-posterior distance of the arch at the inter canine distance and junction between the hard and soft palate were statistically significant. Kruskal Wallis test was used to compare the differences between age groups. Chisquare values didnot indicate significant differences of measurements according to the age group of the participants. In conclusion, there is a significant difference in all maxillary arch parameters between the different genders. No significant differences in arch parameters were observed among the different age groups.
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Affiliation(s)
- R.M. Jayasinghe
- Department of Prosthetic Dentistry, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - I.P. Thilakumara
- Department of Prosthetic Dentistry, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - P.V.K.S. Hettiarachchi
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - M.C.N. Fonseka
- Department of Restorative Dentistry, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - C.D. Nanayakkara
- Department of Basic Sciences, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - R.D. Jayasinghe
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
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Correlations between additional roots in maxillary second molars, maxillary first premolars, mandibular first molars and mandibular first premolars: a retrospective cone-beam computed tomography analysis. Odontology 2022; 110:584-595. [DOI: 10.1007/s10266-022-00687-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/18/2022] [Indexed: 10/19/2022]
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Tervahauta E, Nokela J, Vuollo V, Pirttiniemi P, Silvola AS. Associations of sagittal malocclusions with dental arch characteristics and crowding in Northern Finland Birth Cohort 1966. Orthod Craniofac Res 2021; 25:468-475. [PMID: 34905291 DOI: 10.1111/ocr.12558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/02/2021] [Accepted: 12/07/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To analyse the associations between the widths and forms of dental arches, malocclusions and crowding in middle-aged adult population. MATERIALS AND METHODS The study material is part of the Northern Finland Birth Cohort 1966 (NFBC1966); the subjects were examined at the age of 46 years. A total of 781 adults with full dentition and no orthodontic treatment history were included. Overjet, overbite, cross-bite and scissor bite were examined during clinical examination. The widths and forms of dental arches, molar relationships and crowding were measured using three-dimensional (3D) dental models. RESULTS Dental arches were significantly larger in males than in females. Class II (CII) occlusion and increased overjet (≥6 mm) were associated with narrow maxilla (P < .001, P < .05 respectively). Subjects with lateral cross-bite had significantly narrower maxilla and wider mandible (P < .05) than subjects with normal lateral occlusion. In subjects with CII occlusion, square or tapered maxilla and tapered or ovoid mandible were significantly more frequent compared to subjects with Class I (CI) occlusion (P < .05). CII occlusion was significantly associated with crowding in the maxilla (P < .01). CONCLUSION Narrow and tapered-shaped maxilla was related to CII occlusion, which was associated with dental crowding in the maxilla. Malocclusions were more likely to be found together with other malocclusions than alone.
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Affiliation(s)
- Elisa Tervahauta
- Research Unit of Oral Health Sciences, Faculty of Medicine, Medical Research Center, Oulu University Hospital and University of Oulu, University of Oulu, Oulu, Finland
| | - Jonna Nokela
- Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Ville Vuollo
- Research Unit of Oral Health Sciences, Faculty of Medicine, Medical Research Center, Oulu University Hospital and University of Oulu, University of Oulu, Oulu, Finland
| | - Pertti Pirttiniemi
- Research Unit of Oral Health Sciences, Faculty of Medicine, Medical Research Center, Oulu University Hospital and University of Oulu, University of Oulu, Oulu, Finland
| | - Anna-Sofia Silvola
- Research Unit of Oral Health Sciences, Faculty of Medicine, Medical Research Center, Oulu University Hospital and University of Oulu, University of Oulu, Oulu, Finland
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Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models. JOURNAL OF HEALTHCARE ENGINEERING 2019; 2019:4191848. [PMID: 31814950 PMCID: PMC6878797 DOI: 10.1155/2019/4191848] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 09/12/2019] [Accepted: 10/10/2019] [Indexed: 01/19/2023]
Abstract
Objective The purpose of this study was to observe the three-dimensional growth and development of the maxillary arch in 10-year-olds with normal occlusion during the late mixed dentition stage. Methods Forty-four 10-year-old students (22 males and 22 females) who had normal occlusion during late mixed dentition were selected from an elementary school in Beijing, China. Once per year for three consecutive years, a dental cast was obtained from each subject, and the cast was scanned with a 3D digital scanner (R700 3D). The three-dimensional measurements of the maxillary dental arch and the inclination of the bilateral maxillary first molars were obtained from the digital model. Results The upper anterior arch length (UAAL), upper total arch length (UTAL), upper inter primary or permanent canine width (UICW), upper intermolar width (UIMW), and upper dental arch length (UDAL) increased by 0.959 mm, 0.583 mm, 0.955 mm, 1.462 mm, and 2.46 mm, respectively, over the two years (P < 0.001). UR6BL and UL6BL decreased by 4.416° and 7.133°, respectively, over the two years (P < 0.001). The values of the UICW and UIMW were 1.67 mm and 1.86 mm, respectively, larger in males than in females at 12 years old (P < 0.01). The change in the UTAL was 0.431 mm greater in males than in females over the 2 years (P < 0.05). Conclusion The UAAL, UTAL, UICW, UIMW, and UDAL in 10- to 12-year-olds with normal occlusion increased with age. The buccolingual inclination of the bilateral maxillary first molars inclined to the palatal side with age. The UICW and UIMW were larger in males than in females at 12 years old. The male UTAL increased more than the female UTAL over the 2 years.
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