Related Experiment Video
Updated: Dec 27, 2025
07:17
Studying Orthodontic Tooth Movement in Mice
Published on: August 2, 2024
1.3K
Root canal morphology of primary maxillary second molars: a micro-computed tomography analysis
S Mohd Ariffin1,2, O Dalzell1, R Hardiman3
1Growth and Development, Melbourne Dental School, The University of Melbourne, Carlton, Australia.
Summary
Primary maxillary second molars exhibit complex root canal anatomy. Understanding these configurations is crucial for successful endodontic treatment in pediatric dentistry.
Area of Science:
- Pediatric Dentistry
- Endodontics
- Dental Anatomy
Background:
- Successful endodontic treatment in primary teeth necessitates a thorough understanding of root canal morphology.
- Variations in root canal anatomy can impact treatment outcomes.
Purpose of the Study:
- To investigate the root canal configurations of primary maxillary second molars.
- To utilize micro-computed tomography for detailed anatomical analysis.
Main Methods:
- Extracted primary maxillary second molars (n=57) were analyzed.
- Micro-computed tomography (micro-CT) was employed to create 3D models.
- Root canal systems were classified using Vertucci's criteria.
Main Results:
- Root fusion between disto-buccal and palatal roots occurred in 22.8% of samples, predominantly Type V.
- In teeth with three separate roots, Type I was common in palatal (100%) and disto-buccal (77.3%) canals.
- Type V was prevalent in mesio-buccal canals (36.4%), with 7% unclassifiable.
Conclusions:
- The root canal systems of primary maxillary second molars are highly complex.
- Diverse configurations may lead to unfavorable clinical outcomes in endodontic therapy.
- Detailed anatomical knowledge is vital for effective endodontic treatment in this age group.
