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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
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Lobodontia-Affected Teeth Exhibit Compromised Integrity and Enamel Defects: A Deep Phenotyping Study
Thanakorn Theerapanon1,2, Narin Intarak2, Sasiprapa Prommanee2,3
1Interdisciplinary Program of Biomedical Sciences, Graduate School, Chulalongkorn University, Bangkok, Thailand.
Oral Diseases
|May 26, 2025
Summary
Lobodontia teeth have weaker structure, reduced enamel, and a faulty junction, increasing risks. Understanding these tooth disorder properties guides personalized dental treatments.
Area of Science:
- Dental Morphology
- Biomaterials Science
- Clinical Dentistry
Background:
- Lobodontia is a rare tooth anomaly with carnivore-like features.
- It poses significant clinical and treatment challenges.
Purpose of the Study:
- To comprehensively analyze the physical, mechanical, and ultrastructural characteristics of lobodontia teeth.
- To provide data for developing precise treatment strategies for this condition.
Main Methods:
- Comparative analysis of two lobodontia teeth and ten control teeth.
- Utilized colorimetry, surface roughness, microCT, SEM, EDX, nanoindentation, and histology.
Main Results:
- Lobodontia teeth display multitubercular morphology, dens invaginatus, and taurodontism.
- Showed increased roughness, color deviation, reduced hardness, elastic modulus, and enamel thickness.
- A disrupted dentinoenamel junction with a gap between enamel and dentin was observed.
Conclusions:
- Lobodontia teeth have compromised structural integrity and a defective dentinoenamel junction.
- These defects elevate risks of biofilm accumulation, infection, and malocclusion.
- Personalized treatment approaches are essential for managing lobodontia.
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