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Song X, Li X, Song G, Zhang L, Si Y, Li M, Wan J, Sun Y, You Y, Yang F. The construction of an inflammation classification model for HDPCs applied in guiding pulpotomy based on single-cell Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 326:125233. [PMID: 39418679 DOI: 10.1016/j.saa.2024.125233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 09/23/2024] [Accepted: 09/29/2024] [Indexed: 10/19/2024]
Abstract
The immune defense and the repair function of the pulp tissue serve as the biological foundation of pulpotomy. The precise evaluation of the pulp inflammation extent and determining its reversibility are essential for the success of pulpotomy. The objective of this study was to classify the molecular-level of dental pulp cell physiology and inflammatory state based on the biochemical changes obtained by single-cell Raman spectroscopy. Firstly, we differentiated the growth of HDPCs (human dental pulp cells) under physiological states by employing Raman spectroscopy with multivariate statistical analysis. Raman spectroscopy reflected the biochemical changes at different growth phases, including the lag phase, log phase, and stationary phase. Secondly, we evaluated the optimal concentration and duration of Porphyromonas gingivalis lipopolysaccharide (P.g.LPS) stimulation to establish a six-level inflammation classification model of HDPCs. Thirdly, we performed label-free characterization of biological component changes in cells of different inflammation grades by Raman spectroscopy. As a result, the differences of peaks in the region 600-1800 cm-1 demonstrated the biochemical molecular alterations in the different inflammation grades of HDPCs. As inflammation progresses in steps, protein peaks increased first and then decreased, while lipid and nucleic acid peaks gradually decreased compared to unstimulated cells. However, when the inflammatory stimulation reached grade V, the changes in the biological properties were characterized by a recovery in protein and lipid content, and a decrease in nucleic acid content. We then established the diagnostic model using the Raman spectra of HDPCs in physiological and inflammatory states, which had a prediction accuracy of 100 % and 97.4 %, respectively. Finally, we determined the reversibility threshold of HDPCs at different grades of inflammation. We observed that the inflammation of grade I and II cells had potential reversibility and could be attempted to be retained. In conclusion, Raman spectroscopy combined with multivariate statistical analysis has potential possibility to effectively distinguish the degree of inflammation in the dental pulp, thus providing new tools and perspectives on pulpotomy in clinical practice.
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Affiliation(s)
- Xuejiao Song
- School of Stomatology, Shandong Second Medical University, Weifang 261053, China
| | - Xiuzhen Li
- Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan 250014, China
| | - Ge Song
- Stomatology Center, Qingdao Municipal Hospital, Qingdao 266071, China
| | - Lei Zhang
- Qingdao Branch of China United Network Communications Co., Ltd., Qingdao 266001, China
| | - Yuan Si
- School of Stomatology, Qingdao University, Qingdao 266023, China
| | - Min Li
- Stomatology Center, Qingdao Municipal Hospital, Qingdao 266071, China
| | - Junli Wan
- Qingdao Chengyang People's Hospital, Shandong 266041, China
| | - Yanfei Sun
- Stomatology Center, Qingdao Municipal Hospital, Qingdao 266071, China
| | - Yuehua You
- Department of Stomatology, Longhua People's Hospital, Shenzhen 518100, China; School of Stomatology, Southern Medical University, Guangzhou 510510, China.
| | - Fang Yang
- Stomatology Center, Qingdao Municipal Hospital, Qingdao 266071, China.
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Wang M, Xia T, Wang Y. Nd: YAG laser irradiation in the treatment of live pulp preservation in pediatric cariogenic pulpitis. Technol Health Care 2024:THC241233. [PMID: 39269868 DOI: 10.3233/thc-241233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2024]
Abstract
BACKGROUND Dental pulpitis significantly impacts oral function and quality of life. Treatments like direct pulp capping aim to preserve pulp vitality. OBJECTIVE This study aims to investigate the application value of Nd:YAG laser irradiation in preserving pulp vitality in children with caries-induced pulpitis. METHODS This study, conducted from June 2019 to June 2023, included 89 children undergoing pulp vitality preservation treatment for caries-induced pulpitis. The children were divided into two groups using sealed envelopes: 44 in the control group received pulp capping treatment, while the study group received Nd:YAG laser-assisted pulp capping treatment. The efficacy, oral indicators, oral function, changes in root apex diameter and root length, changes in gingival crevicular fluid inflammatory factors, and incidence of complications were compared between the two groups before and 3 months after treatment. RESULTS The total effective rates were 97.78% in the study group and 95.45% in the control group, with no significant difference between the groups (p> 0.05). Before treatment, there were no differences in gingival index, plaque index, and probing bleeding index between the groups (p> 0.05). After treatment, both groups showed decreased periodontal indexes compared to before treatment, with the study group showing lower values than the control group (p< 0.05). Chewing and biting function scores were similar between the groups before and after treatment (p> 0.05), but both groups showed decreased scores after treatment (p< 0.05). The study group had a higher percentage decrease in root apex diameter and a greater increase in root length compared to the control group (p< 0.05). During treatment, one case of tooth discoloration occurred in the study group (2.27%), while the control group had two cases of tooth discoloration and one case of secondary caries, resulting in a complication rate of 6.67%. There was no significant difference in the incidence of complications between the groups (p> 0.05). CONCLUSION Nd:YAG laser irradiation effectively preserves pulp vitality in children with caries-induced pulpitis, improving periodontal health, reducing root apex diameter, and increasing root length with high safety.
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Karaman GE, Bulut M, Yazan Sukur E. Comparative analysis of shear bond strength of MTA and Theracal PT with different restorative materials. BMC Oral Health 2024; 24:974. [PMID: 39174990 PMCID: PMC11340176 DOI: 10.1186/s12903-024-04763-z] [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: 07/03/2024] [Accepted: 08/16/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND This study aimed to compare the in vitro shear bond strength (SBS) of mineral trioxide aggregate (MTA) and dual-cured, resin-modified calcium silicate material (Theracal PT) to composite resin, compomer, and bulk-fill composite, and to evaluate the bond failure mode under a stereomicroscope. METHODS Ninety acrylic specimens, each with a 4 mm diameter and 2 mm height central hole, were prepared. These specimens were randomly divided into two groups based on the capping materials: MTA and Theracal PT. Each group was further subdivided into three subgroups (n = 15) according to the restorative materials: composite resin, compomer, and bulk-fill composite. The specimens were then subjected to shear testing using a universal testing machine at a crosshead speed of 1 mm/min. Post-test, the fracture locations were examined using a stereomicroscope. Data were analyzed using a two-way analysis of variance (ANOVA) and the Tukey test. RESULTS The SBS values for the Theracal PT group were significantly higher than those for the MTA group (p < 0.001). Within the MTA groups, no significant differences were observed in SBS values across the different restorative materials. However, a significant difference was found between the mean SBS values of the Theracal PT + composite resin group and the Theracal PT + compomer group (p < 0.001). CONCLUSIONS Theracal PT shows promise in dentistry due to its superior bond strength. Given its bond values, Theracal PT appears capable of forming durable and long-lasting restorations by establishing reliable bonds with various restorative materials commonly used in dentistry.
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Affiliation(s)
- Gözde Ece Karaman
- Department of Pediatric Dentistry, Faculty of Dentistry, Istanbul Okan University, Istanbul, Turkey.
| | - Müge Bulut
- Department of Pediatric Dentistry, Faculty of Dentistry, Istanbul Okan University, Istanbul, Turkey
| | - Elif Yazan Sukur
- Department of Pediatric Dentistry, Faculty of Dentistry, Istanbul Okan University, Istanbul, Turkey
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Novotná B, Holík P, Morozova Y, Rosa M, Galandáková A, Langová K. Evaluation of Cytotoxicity of the Dental Materials TheraCal LC, TheraCal PT, ApaCal ART and Biodentine Used in Vital Pulp Therapy: In Vitro Study. Dent J (Basel) 2024; 12:249. [PMID: 39195093 DOI: 10.3390/dj12080249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/05/2024] [Accepted: 08/01/2024] [Indexed: 08/29/2024] Open
Abstract
(1) Background: The aim of this study was to compare the cytotoxicity of selected resin-modified materials used in direct contact with the dental pulp (TheraCal LC, TheraCal PT, and ApaCal ART) with calcium silicate cement (Biodentine). (2) Methods: The mouse fibroblast Balb/3T3 cell line and the extracts of tested materials in four concentrations were used for the testing. An MTT assay was performed in three independent experiments with six replicates for each concentration of tested material. The cell viability (%) and cytotoxicity were expressed (cytotoxic effect is considered in cases where the cell viability is lower than 70%). The mean of the cell viability and the standard deviation were expressed for each material at all concentrations. ANOVA and Dunnet's post hoc tests were used for the statistical analysis. All of these tests were performed at the 0.05 significance level. (3) Results: At all concentrations, the cell viability was statistically significantly lower (p ≤ 0.002) for all tested materials compared to Biodentine. ApaCal ART showed a high level of cytotoxicity at all concentrations (cell viability lower than 47.71%, p < 0.0001). The same result was found for TheraCal LC at concentrations of 100%, 50% and 25% and TheraCal PT at concentrations of 100% and 50%. TheraCal LC at a 10% concentration (cell viability 68.18%) and TheraCal PT at a 25% concentration (cell viability 60.63%) indicated potential cytotoxicity. TheraCal PT at a 10% concentration was not found to be cytotoxic (cell viability 79.18%, p = 0.095). (4) Conclusion: The resin-modified calcium silicate and calcium phosphate materials showed higher cytotoxic potential, so they should be used with caution when in direct contact with the dental pulp.
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Affiliation(s)
- Barbora Novotná
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University and Faculty Hospital Olomouc, Palackého 12, 779 00 Olomouc, Czech Republic
| | - Pavel Holík
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University and Faculty Hospital Olomouc, Palackého 12, 779 00 Olomouc, Czech Republic
| | - Yuliya Morozova
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University and Faculty Hospital Olomouc, Palackého 12, 779 00 Olomouc, Czech Republic
| | - Matej Rosa
- Institute of Dentistry and Oral Sciences, Faculty of Medicine and Dentistry, Palacký University and Faculty Hospital Olomouc, Palackého 12, 779 00 Olomouc, Czech Republic
| | - Adéla Galandáková
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Kateřina Langová
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic
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Yang SY, Wang JZ, Fan H, Chen M. Adrenaline in pulp capping treatment of reversible pulpitis. World J Clin Cases 2024; 12:5024-5031. [DOI: 10.12998/wjcc.v12.i22.5024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/23/2024] [Accepted: 06/11/2024] [Indexed: 06/30/2024] Open
Abstract
BACKGROUND The role of epinephrine in the treatment of pulp capping in patients with reversible pulpitis is not clear.
AIM To explore the role of epinephrine in the treatment of pulp capping in patients with reversible pulpitis.
METHODS A total of 100 patients with reversible pulpitis who were treated in Anhui Jieshou People's Hospital from January 2020 to December 2021 were included in the study. They were categorized into an observation group (n = 50; treatment with adrenaline) and a control group (n = 50; treatment with zinc oxide eugenol paste). The 24-h postoperative pain, regression time of gingival congestion and redness, clinical efficacy, and incidence of adverse reactions were compared between the groups. Patients were further categorized into the ineffective and effective treatment groups based on clinical efficacy. Logistic multiple regression analysis explored factors affecting the efficacy of pulp capping treatment.
RESULTS A significant difference in 24-h postoperative pain was observed between the groups (P < 0.05), with a higher proportion of grade I pain noted in the observation group than in the control group (P < 0.01). The regression time of gingival congestion and swelling was lower in the observation group (2.61 ± 1.44 d and 2.73 ± 1.36 d, respectively) than in the control group (3.85 ± 1.47 d and 4.28 ± 1.61 d, respectively) (P < 0.05). The 2-wk postoperative total effective rate was lower in the control group (80.00%) than in the observation group (94.00%) (P < 0.05). The incidence of adverse reactions was not significantly different between the control (14.00%) and observation (12.00%) groups (P > 0.05). The proportion of adrenaline usage was lower (P < 0.05) and that of anaerobic digestion by Streptococcus and Fusobacterium nucleatum was higher in the ineffective treatment group than in the effective treatment group (P < 0.05). Logistic multiple regression analysis revealed adrenaline as a protective factor (P < 0.05) and anaerobic digestion by Streptococcus and F. nucleatum as risk factors for pulp capping in reversible pulpitis (P < 0.05).
CONCLUSION Adrenaline demonstrated therapeutic efficacy in pulp capping treatment for reversible pulpitis, reducing pain and improving clinical symptoms safely. It is a protective factor for pulp capping, whereas Streptococcus and F. nucleatum are risk factors. Targeted measures can be implemented to improve clinical efficacy.
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Affiliation(s)
- Si-Yun Yang
- Department of Stomatology, Anhui Jieshou People's Hospital, Fuyang 236500, Anhui Province, China
| | - Jin-Zhu Wang
- Department of Stomatology, Jiangsu Yancheng Maternal and Child Health Hospital, Yancheng 224000, Jiangsu Province, China
| | - Hao Fan
- Department of Stomatology, Anhui Jieshou People's Hospital, Fuyang 236500, Anhui Province, China
| | - Min Chen
- Department of Stomatology, Anhui Jieshou People's Hospital, Fuyang 236500, Anhui Province, China
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Zhong Y, Liu C, Yan X, Li X, Chen X, Mai S. Odontogenic and anti-inflammatory effects of magnesium-doped bioactive glass in vital pulp therapy. Biomed Mater 2024; 19:045026. [PMID: 38740053 DOI: 10.1088/1748-605x/ad4ada] [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: 03/14/2024] [Accepted: 05/13/2024] [Indexed: 05/16/2024]
Abstract
This study aimed to investigate the effects of magnesium-doped bioactive glass (Mg-BG) on the mineralization, odontogenesis, and anti-inflammatory abilities of human dental pulp stem cells (hDPSCs). Mg-BG powders with different Mg concentrations were successfully synthesized via the sol-gel method and evaluated using x-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. Apatite formation was observed on the surfaces of the materials after soaking in simulated body fluid. hDPSCs were cultured with Mg-BG powder extracts in vitro, and no evident cytotoxicity was observed. Mg-BG induced alkaline phosphatase (ALP) expression and mineralization of hDPSCs and upregulated the expression of odontogenic genes, including those encoding dentin sialophosphoprotein, dentin matrix protein 1, ALP, osteocalcin, and runt-related transcription factor 2. Moreover, Mg-BG substantially suppressed the secretion of inflammatory cytokines (interleukin [IL]-4, IL-6, IL-8, and tumor necrosis factor-alpha). Collectively, the results of this study suggest that Mg-BG has excellent in vitro bioactivity and is a potential material for vital pulp therapy of inflamed pulps.
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Affiliation(s)
- Yewen Zhong
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Institute of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
| | - Cong Liu
- Department of Biomaterials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510641, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, Guangdong 510006, People's Republic of China
| | - Xin Yan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Institute of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
| | - Xiangdong Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Institute of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
| | - Xiaofeng Chen
- Department of Biomaterials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510641, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, Guangdong 510006, People's Republic of China
| | - Sui Mai
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
- Institute of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, People's Republic of China
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Kalantzis N, Gioti M, Sofia F, Kodonas K, Gogos C. The management of deep carious lesions and the exposed pulp in fully developed and immature teeth with irreversible pulpitis: a questionnaire-based study among Greek dentists. Clin Oral Investig 2024; 28:359. [PMID: 38844571 DOI: 10.1007/s00784-024-05756-6] [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: 04/20/2024] [Accepted: 05/29/2024] [Indexed: 06/26/2024]
Abstract
OBJECTIVES The study aimed to identify the preferred management techniques used by dentists in Greece for treating deep carious lesions or pulp exposure during the removal of carious tissue in teeth with irreversible pulpitis. Additionally, the study sought to explore how patient-related factors (such as age and symptoms) and operator-related factors (like material choice and the use of antibiotics) influence these management decisions. MATERIALS AND METHODS The questionnaire, developed by five investigators, was divided into two parts: the first gathered respondent demographics, and the second presented clinical scenarios of deep carious lesions, requesting treatment strategies, materials used, and antibiotic prescription practices. The scenarios described patients with intense spontaneous pain and very deep carious lesions, differentiated by age and tooth development status.Data collection was via Google Drive, with analysis performed using SPSS 28, Chi-square, and Fisher's exact tests, with significance set at p < 0.05. RESULTS The study polled 453 Greek dentists about their treatment choices, for deep carious lesions in mature and immature teeth with irreversible pulpitis The majority favored root canal treatment for mature teeth, however quite a few opted for partial or cervical pulpotomy. MTA emerged as the preferred capping material, emphasizing its biocompatibility. Hemostasis management varied, with saline and sodium hypochlorite as popular choices. In cases of immature teeth, a shift towards vital pulp therapy was evident, reflecting a preference for preserving healthy pulp to avoid complex procedures. CONCLUSIONS Challenges identified include varying treatment preferences, the significance of bleeding control in vital pulp therapy, and the limited use of antibiotics for irreversible pulpitis. While the study has limitations, including sample size and potential biases, its findings offer valuable insights into the decision-making processes of Greek dentists. CLINICAL RELEVANCE Future research and ongoing education within the dental community could contribute to standardizing treatment approaches and optimizing outcomes for patients with deep carious lesions and irreversible pulpitis.
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Affiliation(s)
- Nikolaos Kalantzis
- Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Mavreta Gioti
- Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Filippou Sofia
- Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Konstantinos Kodonas
- Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christos Gogos
- Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Bhat R, Shetty S, Rai P, Kumar BK, Shetty P. Revolutionizing the diagnosis of irreversible pulpitis - Current strategies and future directions. J Oral Biosci 2024; 66:272-280. [PMID: 38508491 DOI: 10.1016/j.job.2024.03.006] [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: 12/26/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Pulpitis primarily arises from the pulp space infection by oral microbiota. Vital pulp therapy is a minimally invasive approach that relies on assessing the severity of pulpal inflammation to facilitate repair. However, the current evaluation methods prescribed by the American Association of Endodontics are subjective, leading to ambiguity in assessment. Therefore, this review aims to explore molecular strategies for evaluating the severity of pulpal inflammation to accurately predict the success of pulp vitality preservation in clinical settings. METHODOLOGY This review was conducted by searching relevant keywords, such as irreversible pulpitis, pulpitis biomarkers, molecular diagnosis, inflammation, and genomic strategies, in databases such as PubMed, Web of Science, and Scopus to address the subjective nature of diagnosis. The data included in this review were collected up to April 2023. The literature search revealed well-documented limitations in clinically assessing the pulp inflammatory. Molecular approaches that aid in clinical differentiation between irreversible and reversible pulpitis may potentially enhance favorable outcomes in vital pulp therapy. Non-invasive diagnostic methods for pulpal assessment would also be valuable for determining whether the inflamed pulp is reversible, irreversible, or necrotic. CONCLUSION The present review examines the various molecular diagnostic approaches that have revolutionized the medical field and are considered the most promising empirical methodologies for the proactive detection of pulpal diseases. It also provides comprehensive insights into the current diagnostic methods, associated challenges, next-generation strategies, and future directions for diagnosing the severity of pulp inflammation.
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Affiliation(s)
- Raksha Bhat
- Nitte (Deemed to be University), Department of Conservative Dentistry & Endodontics, AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Mangalore, 575018, Karnataka, India.
| | - Shishir Shetty
- Nitte (Deemed to be University), Department of Conservative Dentistry & Endodontics, AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Mangalore, 575018, Karnataka, India.
| | - Praveen Rai
- Nitte (Deemed to be University), Department of Infectious Diseases and Microbial Genomics, Nitte University Centre for Science Education and Research (NUCSER), Mangalore, 575018, Karnataka, India.
| | - Ballamoole Krishna Kumar
- Nitte (Deemed to be University), Department of Infectious Diseases and Microbial Genomics, Nitte University Centre for Science Education and Research (NUCSER), Mangalore, 575018, Karnataka, India.
| | - Preethesh Shetty
- Nitte (Deemed to be University), Department of Conservative Dentistry & Endodontics, AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Mangalore, 575018, Karnataka, India.
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Aminmansour S, Gomes de Carvalho AB, Medeiros Cardoso L, Anselmi C, Rahimnejad M, Dal-Fabbro R, Benavides E, Campos TMB, Borges ALS, Bottino MC. Strontium-Doped Bioglass-Laden Gelatin Methacryloyl Hydrogels for Vital Pulp Therapy. J Funct Biomater 2024; 15:105. [PMID: 38667562 PMCID: PMC11051416 DOI: 10.3390/jfb15040105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/12/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
This study aimed to develop gelatin methacryloyl (GelMA)-injectable hydrogels incorporated with 58S bioactive glass/BG-doped with strontium for vital pulp therapy applications. GelMA hydrogels containing 0% (control), 5%, 10%, and 20% BG (w/v) were prepared. Their morphological and chemical properties were evaluated by scanning electron microscopy/SEM, energy dispersive spectroscopy/EDS, and Fourier transform infrared spectroscopy/FTIR (n = 3). Their swelling capacity and degradation ratio were also measured (n = 4). Cell viability (n = 8), mineralized matrix formation, cell adhesion, and spreading (n = 6) on DPSCs were evaluated. Data were analyzed using ANOVA/post hoc tests (α = 5%). SEM and EDS characterization confirmed the incorporation of BG particles into the hydrogel matrix, showing GelMA's (C, O) and BG's (Si, Cl, Na, Sr) chemical elements. FTIR revealed the main chemical groups of GelMA and BG, as ~1000 cm-1 corresponds to Si-O and ~1440 cm-1 to C-H. All the formulations were degraded by day 12, with a lower degradation ratio observed for GelMA+BG20%. Increasing the concentration of BG resulted in a lower mass swelling ratio. Biologically, all the groups were compatible with cells (p > 0.6196), and cell adhesion increased over time, irrespective of BG concentration, indicating great biocompatibility. GelMA+BG5% demonstrated a higher deposition of mineral nodules over 21 days (p < 0.0001), evidencing the osteogenic potential of hydrogels. GelMA hydrogels incorporated with BG present great cytocompatibility, support cell adhesion, and have a clinically relevant degradation profile and suitable mineralization potential, supporting their therapeutic potential as promising biomaterials for pulp capping.
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Affiliation(s)
- Sepideh Aminmansour
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
| | - Ana Beatriz Gomes de Carvalho
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
- Department of Dental Materials and Prosthodontics, Sao Paulo State University, Sao Jose dos Campos 12245-000, SP, Brazil;
| | - Lais Medeiros Cardoso
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
- Department of Dental Materials and Prosthodontics, Sao Paulo State University, Araraquara 14801-903, SP, Brazil
| | - Caroline Anselmi
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
- Department of Morphology and Pediatric Dentistry, Sao Paulo State University, Araraquara 14801-903, SP, Brazil
| | - Maedeh Rahimnejad
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
| | - Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
| | - Erika Benavides
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA;
| | | | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthodontics, Sao Paulo State University, Sao Jose dos Campos 12245-000, SP, Brazil;
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (S.A.); (A.B.G.d.C.); (L.M.C.); (C.A.); (M.R.); (R.D.-F.)
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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Alshawkani HA, Mansy M, Ankily MA, Shamel M. Regenerative Potential of Dental Pulp Stem Cells in Response to a Bioceramic Dental Sealer and Photobiomodulation: An In Vitro Study. J Contemp Dent Pract 2024; 25:313-319. [PMID: 38956844 DOI: 10.5005/jp-journals-10024-3676] [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] [Indexed: 07/04/2024]
Abstract
AIMS This study aims to assess the synergistic effect of utilizing a bioceramic sealer, NeoPutty, with photobiomodulation (PBM) on dental pulp stem cells (DPSCs) for odontogenesis. MATERIALS AND METHODS Dental pulp stem cells were collected from 10 premolars extracted from healthy individuals. Dental pulp stem cells were characterized using an inverted-phase microscope to detect cell shape and flow cytometry to detect stem cell-specific surface antigens. Three experimental groups were examined: the NP group, the PBM group, and the combined NP and PBM group. A 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) experiment was conducted to assess the viability of DPSCs. The odontogenic differentiation potential was analyzed using Alizarin red staining, RT-qPCR analysis of odontogenic genes DMP-1, DSPP, and alkaline phosphatase (ALP), and western blot analysis for detecting BMP-2 and RUNX-2 protein expression. An analysis of variance (ANOVA) followed by a post hoc t-test was employed to examine and compare the mean values of the results. RESULTS The study showed a notable rise in cell viability when NP and PBM were used together. Odontogenic gene expression and the protein expression of BMP-2 and RUNX-2 were notably increased in the combined group. The combined effect of NeoPutty and PBM was significant in enhancing the odontogenic differentiation capability of DPSCs. CONCLUSION The synergistic effect of NeoPutty and PBM produced the most positive effect on the cytocompatibility and odontogenic differentiation potential of DPSCs. CLINICAL SIGNIFICANCE Creating innovative regenerative treatments to efficiently and durably repair injured dental tissues. How to cite this article: Alshawkani HA, Mansy M, Al Ankily M, et al. Regenerative Potential of Dental Pulp Stem Cells in Response to a Bioceramic Dental Sealer and Photobiomodulation: An In Vitro Study. J Contemp Dent Pract 2024;25(4):313-319.
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Affiliation(s)
- Hamed A Alshawkani
- Department of Restorative Dental Science, College of Dentistry, Jazan University, Saudi Arabia
| | - Mohamed Mansy
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Saudi Arabia
| | - Mahmoud Al Ankily
- Department of Oral Biology, Faculty of Dentistry, The British University in Egypt, El Shorouk, Egypt
| | - Mohamed Shamel
- Department of Oral Biology, Faculty of Dentistry, The British University in Egypt, El Shorouk, Egypt, Phone: +201229332616, e-mail:
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11
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Abdelwahab DH, Kabil NS, Badran AS, Darwish D, Abd El Geleel OM. One-year radiographic and clinical performance of bioactive materials in primary molar pulpotomy: A randomized controlled trial. J Dent 2024; 143:104864. [PMID: 38281619 DOI: 10.1016/j.jdent.2024.104864] [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: 12/16/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 01/30/2024] Open
Abstract
OBJECTIVES Mineral Trioxide Aggregate (MTA) is considered the gold standard material for pulpotomy procedures. However, some drawbacks such as poor handling and long setting time are challenging when it is used as pulpotomy dressing in primary molars in children. Hence, the purpose of this study was to compare the radiographic and clinical performance of a premixed, fast setting bioceramic root repair material (BC RRM-F) with MTA in vital pulpotomy procedures of primary molars, with or without the added seal of a stainless steel crown (SSC). METHODS In this double blinded, four-arm, parallel group randomized contolled trial (RCT), 64 primary molars were randomly allocated to one of the four treatment groups: MTA (PDTM MTA WHITE)+SSC, MTA+GI (bulk fill glass ionomer with glass hybrid technology GC EQUIA Forte® HT), BC RRM-F+GI and BC RRM-F+SCC. All molars were evaluated clinically and radiographically according to the modified Zurn and Seale criteria at 1, 3, 6, and 12 months follow up. Multivariate cox regression models and Kaplan-Meier curves were used for survival analysis. RESULTS There was no statistically significant difference between the success of both pulp capping materials used. Overall survival analysis showed that using GI instead of SCC as a final restorative material was significantly associated with increased risk of failure. CONCLUSIONS TotalFill® BC RRM™ Fast Set Putty can be used as an alternative to MTA in primary molar pulpotomy. Regardless of the pulp capping material, one year survival of pulpotomized primary molars restored with SSC is higher compared to those restored with GC EQUIA Forte® HT. CLINICAL SIGNIFICANCE Clinicians' preference and cost effectiveness may justify the use of either material in primary molar pulpotomy. Parents insisting on tooth-colored restorations for their children's pulpotomized teeth cannot be told that the expectation for success is the same as those restored with SSC, even if calcium silicate-based pulp capping materials are used.
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Affiliation(s)
- Dina Hisham Abdelwahab
- Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Ain Shams University, Egypt.
| | - Noha Samir Kabil
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University, Egypt
| | - Amira Saad Badran
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University, Egypt
| | - Dina Darwish
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University, Egypt
| | - Ola Mohamed Abd El Geleel
- Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Ain Shams University, Egypt
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Sun S, Jiang G, Dong J, Xie X, Liao J, Tian Y. Photothermal hydrogels for infection control and tissue regeneration. Front Bioeng Biotechnol 2024; 12:1389327. [PMID: 38605983 PMCID: PMC11007110 DOI: 10.3389/fbioe.2024.1389327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 03/18/2024] [Indexed: 04/13/2024] Open
Abstract
In this review, we report investigating photothermal hydrogels, innovative biomedical materials designed for infection control and tissue regeneration. These hydrogels exhibit responsiveness to near-infrared (NIR) stimulation, altering their structure and properties, which is pivotal for medical applications. Photothermal hydrogels have emerged as a significant advancement in medical materials, harnessing photothermal agents (PTAs) to respond to NIR light. This responsiveness is crucial for controlling infections and promoting tissue healing. We discuss three construction methods for preparing photothermal hydrogels, emphasizing their design and synthesis, which incorporate PTAs to achieve the desired photothermal effects. The application of these hydrogels demonstrates enhanced infection control and tissue regeneration, supported by their unique photothermal properties. Although research progress in photothermal hydrogels is promising, challenges remain. We address these issues and explore future directions to enhance their therapeutic potential.
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Affiliation(s)
- Siyu Sun
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Guangyang Jiang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Jianru Dong
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Xi Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yongqiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
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Wang Y, Mao J, Wang Y, Jiang N, Shi X. Multifunctional Exosomes Derived from M2 Macrophages with Enhanced Odontogenesis, Neurogenesis and Angiogenesis for Regenerative Endodontic Therapy: An In Vitro and In Vivo Investigation. Biomedicines 2024; 12:441. [PMID: 38398043 PMCID: PMC10886856 DOI: 10.3390/biomedicines12020441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/02/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
INTRODUCTION Exosomes derived from M2 macrophages (M2-Exos) exhibit tremendous potential for inducing tissue repair and regeneration. Herein, this study was designed to elucidate the biological roles of M2-Exos in regenerative endodontic therapy (RET) compared with exosomes from M1 macrophages (M1-Exos). METHODS The internalization of M1-Exos and M2-Exos by dental pulp stem cells (DPSCs) and human umbilical vein endothelial cells (HUVECs) was detected by uptake assay. The effects of M1-Exos and M2-Exos on DPSC and HUVEC behaviors, including migration, proliferation, odonto/osteogenesis, neurogenesis, and angiogenesis were determined in vitro. Then, Matrigel plugs incorporating M2-Exos were transplanted subcutaneously into nude mice. Immunostaining for vascular endothelial growth factor (VEGF) and CD31 was performed to validate capillary-like networks. RESULTS M1-Exos and M2-Exos were effectively absorbed by DPSCs and HUVECs. Compared with M1-Exos, M2-Exos considerably facilitated the proliferation and migration of DPSCs and HUVECs. Furthermore, M2-Exos robustly promoted ALP activity, mineral nodule deposition, and the odonto/osteogenic marker expression of DPSCs, indicating the powerful odonto/osteogenic potential of M2-Exos. In sharp contrast with M1-Exos, which inhibited the neurogenic capacity of DPSCs, M2-Exos contributed to a significantly augmented expression of neurogenic genes and the stronger immunostaining of Nestin. Consistent with remarkably enhanced angiogenic markers and tubular structure formation in DPSCs and HUVECs in vitro, the employment of M2-Exos gave rise to more abundant vascular networks, dramatically higher VEGF expression, and widely spread CD31+ tubular lumens in vivo, supporting the enormous pro-angiogenic capability of M2-Exos. CONCLUSIONS The multifaceted roles of M2-Exos in ameliorating DPSC and HUVEC functions potentially contribute to complete functional pulp-dentin complex regeneration.
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Affiliation(s)
- Yujie Wang
- Center of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (Y.W.); (J.M.); (Y.W.)
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Jing Mao
- Center of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (Y.W.); (J.M.); (Y.W.)
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Yifan Wang
- Center of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (Y.W.); (J.M.); (Y.W.)
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Nan Jiang
- Central Laboratory, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China;
| | - Xin Shi
- Center of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (Y.W.); (J.M.); (Y.W.)
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
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Han Y, Dal-Fabbro R, Mahmoud AH, Rahimnejad M, Xu J, Castilho M, Dissanayaka WL, Bottino MC. GelMA/TCP nanocomposite scaffold for vital pulp therapy. Acta Biomater 2024; 173:495-508. [PMID: 37939819 PMCID: PMC10964899 DOI: 10.1016/j.actbio.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/11/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Abstract
Pulp capping is a necessary procedure for preserving the vitality and health of the dental pulp, playing a crucial role in preventing the need for root canal treatment or tooth extraction. Here, we developed an electrospun gelatin methacryloyl (GelMA) fibrous scaffold incorporating beta-tricalcium phosphate (TCP) particles for pulp capping. A comprehensive morphological, physical-chemical, and mechanical characterization of the engineered fibrous scaffolds was performed. In vitro bioactivity, cell compatibility, and odontogenic differentiation potential of the scaffolds in dental pulp stem cells (DPSCs) were also evaluated. A pre-clinical in vivo model was used to determine the therapeutic role of the GelMA/TCP scaffolds in promoting hard tissue formation. Morphological, chemical, and thermal analyses confirmed effective TCP incorporation in the GelMA nanofibers. The GelMA+20%TCP nanofibrous scaffold exhibited bead-free morphology and suitable mechanical and degradation properties. In vitro, GelMA+20%TCP scaffolds supported apatite-like formation, improved cell spreading, and increased deposition of mineralization nodules. Gene expression analysis revealed upregulation of ALPL, RUNX2, COL1A1, and DMP1 in the presence of TCP-laden scaffolds. In vivo, analyses showed mild inflammatory reaction upon scaffolds' contact while supporting mineralized tissue formation. Although the levels of Nestin and DMP1 proteins did not exceed those associated with the clinical reference treatment (i.e., mineral trioxide aggregate), the GelMA+20%TCP scaffold exhibited comparable levels, thus suggesting the emergence of differentiated odontoblast-like cells capable of dentin matrix secretion. Our innovative GelMA/TCP scaffold represents a simplified and efficient alternative to conventional pulp-capping biomaterials. STATEMENT OF SIGNIFICANCE: Vital pulp therapy (VPT) aims to preserve dental pulp vitality and avoid root canal treatment. Biomaterials that bolster mineralized tissue regeneration with ease of use are still lacking. We successfully engineered gelatin methacryloyl (GelMA) electrospun scaffolds incorporated with beta-tricalcium phosphate (TCP) for VPT. Notably, electrospun GelMA-based scaffolds containing 20% (w/v) of TCP exhibited favorable mechanical properties and degradation, cytocompatibility, and mineralization potential indicated by apatite-like structures in vitro and mineralized tissue deposition in vivo, although not surpassing those associated with the standard of care. Collectively, our innovative GelMA/TCP scaffold represents a simplified alternative to conventional pulp capping materials such as MTA and Biodentine™ since it is a ready-to-use biomaterial, requires no setting time, and is therapeutically effective.
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Affiliation(s)
- Yuanyuan Han
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States; Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Abdel H Mahmoud
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Maedeh Rahimnejad
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Jinping Xu
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Miguel Castilho
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Waruna L Dissanayaka
- Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, United States.
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15
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Sharma D, Kumar S, Garg Y, Chopra S, Bhatia A. Nanotechnology in Orthodontics: Unveiling Pain Mechanisms, Innovations, and Future Prospects of Nanomaterials in Drug Delivery. Curr Pharm Des 2024; 30:1490-1506. [PMID: 38644722 DOI: 10.2174/0113816128298451240404084605] [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: 01/09/2024] [Revised: 02/28/2024] [Accepted: 03/21/2024] [Indexed: 04/23/2024]
Abstract
Orthodontic pain is characterized by sensations of tingling, tooth discomfort, and intolerance. According to the oral health report, over forty percent of children and adolescents have undergone orthodontic treatment. The efficacy of orthodontic treatment involving braces can be compromised by the diverse levels of discomfort and suffering experienced by patients, leading to suboptimal treatment outcomes and reduced patient adherence. Nanotechnology has entered all areas of science and technology. This review provides an overview of nanoscience, its application in orthodontics, the underlying processes of orthodontic pain, effective treatment options, and a summary of recent research in Nano-dentistry. The uses of this technology in healthcare span a wide range, including enhanced diagnostics, biosensors, and targeted drug delivery. The reason for this is that nanomaterials possess distinct qualities that depend on their size, which can greatly enhance human well-being and contribute to better health when effectively utilized. The field of dentistry has also experienced significant advancements, particularly in the past decade, especially in the utilization of nanomaterials and technology. Over time, there has been an increase in the availability of dental nanomaterials, and a diverse array of these materials have been extensively studied for both commercial and therapeutic purposes.
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Affiliation(s)
- Divya Sharma
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
- Faculty of Pharmaceutical Sciences, The ICFAI University, Baddi, Himachal Pradesh 174103, India
| | - Shiv Kumar
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
| | - Yogesh Garg
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
| | - Shruti Chopra
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
| | - Amit Bhatia
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
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Wang MC, Chang KW, Lin SC, Hsu LH, Hung PS. Dental pulp cells cocultured with macrophages aggravate the inflammatory conditions stimulated by LPS. BMC Oral Health 2023; 23:991. [PMID: 38071305 PMCID: PMC10710708 DOI: 10.1186/s12903-023-03625-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/05/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Pulp inflammation is complex interactions between different types of cells and cytokines. To mimic the interactions of different types of cells in inflamed dental pulp tissues, dental pulp cells (DPCs) were cocultured with different ratios of macrophages (THP-1) or LPS treatment. METHODS DPCs were cocultured with various ratios of THP-1, then photographed cell morphology and determined cell viability by MTT assay at preset times. Total RNA was also extracted to measure the inflammation marker-IL-6 and IL-8 expressions by RT-Q-PCR. The DPCs and THP-1 were treated with 0.01 - 1μg/ml lipopolysaccharide (LPS) and extract RNA at preset times, and detected IL-6 and IL-8 expression. DPCs were cocultured with various ratios of THP-1 with 0.1 μg/mL LPS, and detected IL-6 and IL-8 expression after 24 and 48 h. The data were analyzed by unpaired t-test or Mann-Whitney test. Differences were considered statistically significant when p < 0.05. RESULTS THP-1 and DPCs coculture models did not suppress the viability of DPCs and THP-1. Cocultured with various ratios of THP-1 could increase IL-6 and IL-8 expressions of DPCs (p = 0.0056 - p < 0.0001). The expressions of IL-6 and IL-8 were stronger in higher ratio groups (p = 0.0062 - p < 0.0001). LPS treatment also induced IL-6 and IL-8 expressions of DPCs and THP-1 (p = 0.0179 - p < 0.0001 and p = 0.0189 - p < 0.0001, separately). Under the presence of 0.1 μg/mL LPS, DPCs cocultured with THP-1 for 24 h also enhanced IL-6 and IL-8 expression (p = 0.0022). After cocultured with a higher ratio of THP-1 for 48 h, IL-6 and IL-8 expressions were even stronger in the presence of LPS (p = 0.0260). CONCLUSIONS Coculturing dental pulp cells and macrophages under LPS treatment aggravate the inflammatory process. The responses of our models were more severe than traditional inflamed dental models and better represented what happened in the real dental pulp. Utilizing our models to explore the repair and regeneration in endodontics will be future goals.
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Affiliation(s)
- Min-Ching Wang
- Division of Pediatric Dentistry, Department of Dentistry, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kuo-Wei Chang
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shu-Chun Lin
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ling-Hsin Hsu
- Department of Dentistry, Taipei City Hospital, Taipei, Taiwan
| | - Pei-Shih Hung
- Institute of Oral Biology, School of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan.
- Department of Medical Research, National Yang Ming Chiao Tung University Hospital, Yilan, Taiwan.
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Li A, Li Z, Chiu W, Xiong C, Chen Q, Chen J, Lai X, Li W, Ke Q, Liu J, Zhang X. Efficient Treatment of Pulpitis via Transplantation of Human Pluripotent Stem Cell-Derived Pericytes Partially through LTBP1-Mediated T Cell Suppression. Biomedicines 2023; 11:3199. [PMID: 38137420 PMCID: PMC10740489 DOI: 10.3390/biomedicines11123199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/10/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Dental pulp pericytes are reported to have the capacity to generate odontoblasts and express multiple cytokines and chemokines that regulate the local immune microenvironment, thus participating in the repair of dental pulp injury in vivo. However, it has not yet been reported whether the transplantation of exogenous pericytes can effectively treat pulpitis, and the underlying molecular mechanism remains unknown. In this study, using a lineage-tracing mouse model, we showed that most dental pulp pericytes are derived from cranial neural crest. Then, we demonstrated that the ablation of pericytes could induce a pulpitis-like phenotype in uninfected dental pulp in mice, and we showed that the significant loss of pericytes occurs during pupal inflammation, implying that the transplantation of pericytes may help to restore dental pulp homeostasis during pulpitis. Subsequently, we successfully generated pericytes with immunomodulatory activity from human pluripotent stem cells through the intermediate stage of the cranial neural crest with a high level of efficiency. Most strikingly, for the first time we showed that, compared with the untreated pulpitis group, the transplantation of hPSC-derived pericytes could substantially inhibit vascular permeability (the extravascular deposition of fibrinogen, ** p < 0.01), alleviate pulpal inflammation (TCR+ cell infiltration, * p < 0.05), and promote the regeneration of dentin (** p < 0.01) in the mouse model of pulpitis. In addition, we discovered that the knockdown of latent transforming growth factor beta binding protein 1 (LTBP1) remarkably suppressed the immunoregulation ability of pericytes in vitro and compromised their in vivo regenerative potential in pulpitis. These results indicate that the transplantation of pericytes could efficiently rescue the aberrant phenotype of pulpal inflammation, which may be partially due to LTBP1-mediated T cell suppression.
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Affiliation(s)
- Anqi Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (A.L.); (W.C.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
| | - Zhuoran Li
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; (Z.L.); (C.X.); (Q.C.); (J.C.); (W.L.); (Q.K.)
| | - Weicheng Chiu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (A.L.); (W.C.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
| | - Chuanfeng Xiong
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; (Z.L.); (C.X.); (Q.C.); (J.C.); (W.L.); (Q.K.)
| | - Qian Chen
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; (Z.L.); (C.X.); (Q.C.); (J.C.); (W.L.); (Q.K.)
| | - Junhua Chen
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; (Z.L.); (C.X.); (Q.C.); (J.C.); (W.L.); (Q.K.)
| | - Xingqiang Lai
- Department of Cardiology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China;
| | - Weiqiang Li
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; (Z.L.); (C.X.); (Q.C.); (J.C.); (W.L.); (Q.K.)
- Guangdong Key Laboratory of Reproductive Medicine, Guangzhou 510080, China
| | - Qiong Ke
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; (Z.L.); (C.X.); (Q.C.); (J.C.); (W.L.); (Q.K.)
| | - Jia Liu
- VIP Medical Service Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Xinchun Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (A.L.); (W.C.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
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Arifin FA, Matsuda Y, Kanno T. Development and Validation of Oral Health-Related Quality of Life Scale for Patients Undergoing Endodontic Treatment (OHQE) for Irreversible Pulpitis. Healthcare (Basel) 2023; 11:2859. [PMID: 37958003 PMCID: PMC10648889 DOI: 10.3390/healthcare11212859] [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: 09/30/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
An oral health-related quality of life measure specific to patients undergoing endodontic treatment has not been developed. This study aimed to validate the oral health-related quality of life scale for patients undergoing endodontic treatment (OHQE) for irreversible pulpitis, comprised of 42 questions. Sixty-two patients with irreversible pulpitis, comprising 23 (37.1%) males and 39 (62.9%) females, were enrolled between August 2022 and February 2023. Data were collected at three time points: pretreatment, post-treatment, and at the second week post-treatment. Factor analysis revealed physical, psychological, and expectations as subscales of OHQE. Cronbach's alpha coefficients ranged from 0.87 to 0.95 for each subscale. Each subscale of the General Oral Health Assessment Index (GOHAI) was moderately correlated with the OHQE subscales. Good-poor analysis revealed a significant difference between the high-scoring and low-scoring groups for each OHQE subscale. The intraclass correlation coefficients of the OHQE subscales ranged from 0.89 to 0.95. Multivariate linear regression analysis revealed a significant correlation between the pretreatment and post-treatment psychological factors (p < 0.05). Thus, OHQE will help researchers and policymakers understand the impact of oral health on the quality of life of patients with irreversible pulpitis undergoing endodontic treatment. OHQE could contribute to the appropriate planning, treatment decisions, and management of dental treatment.
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Affiliation(s)
- Fadil Abdillah Arifin
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo 693-8501, Japan; (F.A.A.); (Y.M.)
- Department of Conservative Dentistry, Faculty of Dentistry, Universitas Muslim Indonesia, Makassar 90132, Indonesia
| | - Yuhei Matsuda
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo 693-8501, Japan; (F.A.A.); (Y.M.)
| | - Takahiro Kanno
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo 693-8501, Japan; (F.A.A.); (Y.M.)
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Liu X, Xie Y, Gao W, Zhan L, Hu L, Zuo L, Li Y. Experimental study of dexamethasone-loaded hollow hydroxyapatite microspheres applied to direct pulp capping of rat molars. Front Endocrinol (Lausanne) 2023; 14:1192420. [PMID: 37600685 PMCID: PMC10435764 DOI: 10.3389/fendo.2023.1192420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Background Dexamethasone (DEX) exerts anti-inflammatory and osteogenic effects. Hydroxyapatite is commonly used in bone repair due to its osteoconductivity, osseointegration, and osteogenesis induction. Hollow hydroxyapatite (HHAM) is often used as a drug carrier. Objective This study aimed to investigate the histological responses of exposed dental pulp when dexamethasone-loaded nanohydroxyapatite microspheres (DHHAM) were used as a direct capping agent. Methods Cavities were created in the left maxillary first molar of Wistar rats and filled with Dycal, HHAM, and DHHAM. No drug was administered to the control group. The rats were sacrificed at 1, 2, and 4 weeks after the procedure. The molars were extracted for fixation, demineralization, dehydration, embedding, and sectioning. H&E staining was performed to detect the formation of reparative dentin. H&E and CD45 immunohistochemical staining were performed to detect pulp inflammation. Immunohistochemical staining was performed to assess the expressions of dentin matrix protein 1 (DMP-1), interleukin (IL)-6, tumor necrosis factor (TNF)-α, and IL-1β. Results The results of H&E and CD45 immunohistochemical staining showed that the degree of inflammation in the DHHAM group was less than that in the Control and HHAM groups at 1, 2, and 4 weeks after capping of the rat molar teeth (p<0.01). The H&E staining showed that the percentage of reparative dentin formed in the DHHAM group was higher than that in the Control, HHAM (p<0.001), and Dycal groups (p<0.01) at 1 and 2 weeks, and was significantly higher than that in the Control group (p<0.001) and the HHAM group (p<0.01) at 4 weeks. The immunohistochemical staining showed a lower range and intensity of expression of IL-1β, IL-6, and TNF-α and high expression levels of DMP-1 in the DHHAM group at 1, 2, and 4 weeks after pulp capping relative to the Control group. Conclusions DHHAM significantly inhibited the progression of inflammation and promoted reparative dentin formation.
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Affiliation(s)
- Xiaoli Liu
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Yuandong Xie
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Weijia Gao
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Luoning Zhan
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Ling Hu
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Linjing Zuo
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Yi Li
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
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Urkande NK, Mankar N, Nikhade PP, Chandak M. Beyond Tradition: Non-surgical Endodontics and Vital Pulp Therapy as a Dynamic Combination. Cureus 2023; 15:e44134. [PMID: 37753005 PMCID: PMC10518373 DOI: 10.7759/cureus.44134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
Symptomatic irreversible pulpitis and apical periodontitis in mature permanent teeth present challenges in their management. Traditional treatment approaches, such as root canal therapy or tooth extraction, may compromise tooth structure and oral function. This review article explores the combination of non-surgical endodontic treatment and vital pulp therapy as an alternative approach for these conditions. The purpose is to examine this combined approach's effectiveness, benefits, challenges, and limitations. The objectives include reviewing the literature, evaluating clinical outcomes, discussing potential benefits, and providing recommendations for clinical practice. The combination approach aims to preserve tooth structure, promote healing, and reduce postoperative complications. The article discusses the rationale for combining the two techniques, presents evidence supporting their efficacy, and outlines the techniques and protocols involved. Clinical outcomes, case studies, potential challenges, and comparative analysis with traditional approaches are also explored. Future directions and research recommendations highlight areas for further investigation, innovations, and the development of clinical guidelines. In conclusion, the combination of non-surgical endodontic treatment and vital pulp therapy offers a valuable strategy for managing mature permanent mandibular molars with symptomatic irreversible pulpitis and apical periodontitis. Further research and advancements are needed to refine the treatment protocol and expand the evidence base, and clinicians should stay updated to provide optimal care and improve patient outcomes.
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Affiliation(s)
- Neha K Urkande
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College And Hospital, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Nikhil Mankar
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College And Hospital, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Pradnya P Nikhade
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College And Hospital, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Manoj Chandak
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College And Hospital, Datta Meghe Institute of Higher Education & Research, Wardha, IND
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Barani M, Aliu X, Ajeti N, Asllani L. Assessment of correlation between clinical, radiographic, microbiological, and histopathological examinations in identification of pulpal diseases - a single-centre study. Saudi Dent J 2023; 35:540-546. [PMID: 37520598 PMCID: PMC10373077 DOI: 10.1016/j.sdentj.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 08/01/2023] Open
Abstract
Aim This study aimed to analyse the presence of pulpitis using different techniques and compare the findings of the various examination methods. Methods A total of 108 patients were enrolled and randomly divided into two groups: 56 patients whose pulp samples were sent for histopathological analysis and 52 patients whose samples were sent for microbiological analysis. All participants underwent endodontic procedures, with clinical evaluation and assessment using periapical radiography. Bacteria were isolated and identified using agar culture and VITEK 2 identification cards. Results Histopathology confirmed chronic pulpitis in 33 samples (58.9%) and acute pulpitis in 23 samples (41.1 %). For chronic pulpitis, the histopathological diagnosis agreed with the clinical evaluation diagnosis in 65.2% of cases, and a similar percentage of agreement was observed for acute pulpitis. Chronic pulpitis was observed in 34.8% of patients on clinical examination; however, according to histopathology, these cases were acute. Dilated blood vessels were detected in 56.5% of patients with acute pulpitis and 15.2% of patients with chronic pulpitis. Neutrophilic leucocytes were observed in 43.5% of patients with acute pulpitis and 69.7% of patients with chronic pulpitis. Lymphocytes were observed in 17.4% of acute pulpitis samples but zero chronic pulpitis samples. Microbiological analysis identified gram-positive bacilli in 22 samples, gram-positive cocci in 51 samples, and fungi in 2 samples. Acute pulpitis was typically found to be associated with anaerobic Clostridium bifermentans, aerobic Streptococcus mitis, and Granulicatella elegans, whereas chronic pulpitis was more often associated with two facultative anaerobes, Streptococcus oralis and Streptococcus mitis. Conclusion Comparison of clinical, radiographic, and histological examination techniquesrevealed several notable discrepancies. Radiographic imaging only suggested the presence of pulpal pathologies; therefore, histopathological analysis of the pulp material was still ultimately required to verify the clinical diagnosis and exclude other pathologies. Although histopathology remains the gold standard for assessing pulpal disease, performing additional examinations may provide the most comprehensive, and perhaps the most effective, approach.
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Affiliation(s)
| | | | | | - Lumturije Asllani
- Corresponding author at: Lumturije Asllani, University for Business and Technology, Faculty of Dentistry Pristina, Lagjja Kalabria, 10000 Pristina, Kosovo.
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