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Updated: Jul 19, 2026
07:26
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Cementoenamel junction of deciduous teeth: SEM-morphology
E Ceppi1, S Dall'Oca, L Rimondini
1Department of Periodontology, University of Rome La Sapienza, Italy.
European Journal of Paediatric Dentistry
|November 3, 2006
Summary
The primary teeth
Area of Science:
- Pediatric Dentistry
- Dental Anatomy
- Scanning Electron Microscopy
Background:
- The cementoenamel junction (CEJ) is a critical area in tooth structure.
- Understanding CEJ morphology in primary teeth is essential for pediatric dental care.
Purpose of the Study:
- To investigate the microscopic morphology of the cementoenamel junction (CEJ) in primary mandibular incisors.
- To classify the types of tissue interrelations at the CEJ.
Main Methods:
- Scanning electron microscopy (SEM) was used to examine the CEJ.
- Eleven sound, caries-free primary mandibular incisors were analyzed.
- CEJ interrelations were categorized into four types: edge-to-edge, cementum overlapping enamel, enamel overlapping cementum, and exposed dentin.
Main Results:
- The edge-to-edge relationship between cementum and enamel was the most frequent finding.
- Cementum overlapping enamel was observed in over one-third of the CEJ.
- Exposed dentin and enamel overlapping cementum were rare observations.
Conclusions:
- The CEJ in primary teeth exhibits distinct characteristics compared to permanent teeth.
- The scarcity of gaps and specific junctional features likely contribute to reduced decay susceptibility in primary teeth.
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