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Evaluation of Pulp Chamber Dimensions of Primary Molars From Bitewing Radiographs
Suhel Dabawala1, Varghese Chacko2, B S Suprabha1
1Department of Paedodontics and Preventive Dentistry, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India.
Pediatric Dentistry
|August 29, 2015
Summary
Key measurements for primary molar pulp chamber morphology, crucial for dental access cavity preparation, were found to be consistent across different primary molar types. This study provides essential anatomic data for pediatric dentistry.
Area of Science:
- Pediatric Dentistry
- Dental Anatomy
- Craniofacial Morphology
Background:
- Understanding primary tooth anatomy is vital for effective dental treatment.
- Pulp chamber morphology directly influences cavity preparation and restoration success.
- Limited data exists on specific anatomic landmarks in primary molars.
Purpose of the Study:
- To measure key anatomic landmarks of pulp chamber morphology in primary maxillary and mandibular first and second molars.
- To provide precise measurements for access cavity preparation in primary teeth.
- To analyze variations in pulp chamber dimensions across different primary molar types.
Main Methods:
- Bitewing radiographs of 42 subjects (153 primary molars) were analyzed using Image J software.
- Standardized radiographic conditions with a millimeter X-ray grid were employed.
- Statistical analysis included mean, standard deviation, and ANOVA with Tukey's post-hoc test.
Main Results:
- The distance from cusp tip to pulp chamber ceiling averaged approximately 4 mm.
- The distance from the pulpal floor to the furcation was approximately 1.7 mm.
- The average pulp chamber height ranged from 2 to 3 mm.
Conclusions:
- Key measurements for access cavity preparation in primary molars demonstrated consistency.
- Anatomic landmarks related to pulp chamber morphology are predictable in primary molars.
- These findings support standardized approaches to cavity preparation in pediatric endodontics.

