Histomorphometric Analysis of Pulp-Dentin Complex in Relation to Tooth Development and Eruption Patterns
DOI:
https://doi.org/10.63682/jns.v14i33S.10018Keywords:
Pulp-dentin complex, Histomorphometry, Tooth development, Tooth eruption, Pulp chamberAbstract
Background: The pulp-dentin complex is a dynamic structure that is important in the development, nutrition, and defense of teeth.
Objective: To examine the histomorphometric characteristics of the pulp-dentin complex, as well as to test the hypothesis of their connection to the tooth development and eruption times.
Methods: The study was an observational cross-sectional study of 80 extracted permanent human teeth that were gathered within one year at Faryal Dental College, Shaikhpura. Teeth that were at different developmental and eruption stages were histologically analyzed after being processed, decalcified, sectioned, and stained using the hematoxylin and eosin stain. The data were processed in SPSS v25; the group comparisons were done with ANOVA, and Pearson correlation was used to evaluate the developmental stage relationships. A p-value that was below 0.05 was notable.
Results: The pulp chamber area was smaller in unerupted (12.5 ± 0.1 mm2) and fully erupted teeth, whereas the dentin thickness, predentin width, and odontoblast densitywere significantly greater in fully erupted teeth. The developmental stage had a negative correlation with the pulp chamber area (r = −0.82), whereas dentin thickness, predentin width, and odontoblast density had positive relationships (p < 0.05).
Conclusion: Pulp-dentin complex is predicted to experience a systematic structural alteration throughout the development and eruption of the teeth. Such histomorphometric observations can be used in clinical dentistry, age determination, and forensics by offering normative information about pulp and dentin structure..
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References
1. Nijakowski, K., et al., The role of cellular metabolism in maintaining the function of the dentine-pulp complex: a narrative review. Metabolites, 2023. 13(4): p. 520.
2. Sequeira, D.B., et al., Scaffolds for dentin–pulp complex regeneration. Medicina, 2023. 60(1): p. 7.
3. Luo, W., et al., Unveiling the Vital Role of Dental Nerves in Dental Pulp Immune Defence and Repair. International Endodontic Journal, 2026. 59(1): p. 2-18.
4. Lee, M., et al., Physiologic dentin regeneration: its past, present, and future perspectives. Frontiers in physiology, 2023. 14: p. 1313927.
5. Guerrero-Jiménez, M., et al., In vitro histomorphometric comparison of dental pulp tissue in different teeth. PeerJ, 2019. 7: p. e8212.
6. Bouaita, I., Tooth decay: how genetics and epigenetics could pave the way for a vaccine revolution. 2025.
7. Papadopoulou, C.I., I. Sifakakis, and S. Tournis, Metabolic bone diseases affecting tooth eruption: a narrative review. Children, 2024. 11(6): p. 748.
8. Muthu, M., et al., Global variations in eruption chronology of primary teeth: A systematic review and meta-analysis. Archives of Oral Biology, 2024. 158: p. 105857.
9. Monica-Cristina, M.N.-B., et al., Evaluation of Permanent Tooth Eruption Patterns in a Local Community of School Children. Acta Médica Marisiensis, 2011. 57(5).
10. Bastos, V.C., R.S. Gomez, and C.C. Gomes, Revisiting the human dental follicle: From tooth development to its association with unerupted or impacted teeth and pathological changes. Developmental Dynamics, 2022. 251(3): p. 408-423.
11. Yildiz, S., et al., Assessing the feasibility of micro-computed tomography in comparing mineral densities and volume values of enamel and dentine in permanent premolars which were extracted teeth for orthodontic and periodontal treatment. IIUM Journal of Orofacial and Health Sciences, 2022. 3(2): p. 172-180.
12. Cetin, S., et al., The micro CT evaluation of crown and root pulp volume versus dentin thickness in teeth in postmortem interval (PMI). Forensic Science, Medicine and Pathology, 2025. 21(1): p. 71-79.
13. Roßgardt, J., et al., The equine dental pulp: histomorphometric analysis of the equine dental pulp in incisors and cheek teeth. Veterinary Sciences, 2022. 9(6): p. 261.
14. Warwar, A.N.H., et al., Histological changes in dental pulp tissue with age: a comparative study. Cellular and Molecular Biology, 2025. 71(6): p. 75-79.
15. Yang, D., et al., Mx1-labeled pulp progenitor cells are the main contributors of odontoblast and dentin regeneration in murine molars. Experimental & molecular medicine, 2025. 57(8): p. 1802-1817.
16. Horsophonphong, S., et al., Proteomic analysis of dental pulp from deciduous teeth in comparison to permanent teeth: an in-vitro study. European Archives of Paediatric Dentistry, 2025: p. 1-11.
17. Agarwal, A., et al., Evaluation of pulpal response at varying remaining dentin thickness in teeth restored with resin bulk fill composite, conventional glass ionomer cement and silver amalgam: Histomorphometric analysis. Journal of Oral Biology and Craniofacial Research, 2025. 15(2): p. 347-354.
18. Almarghlani, A., et al., Assessment of pulpal changes in periodontitis patients using CBCT: a volumetric analysis. Frontiers in Dental Medicine, 2025. 6: p. 1549281.
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