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Distal root curvatures in mandibular molars: analysis using digital panoramic X-rays.
R Fuentes1, C Farfán, N Astete
1Department of Integral Adults Dentistry, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile. Research Center in Dental Sciences (CICO), Faculty of Dentistry, Universidad de La Frontera, Chile.. ramon.fuentes@ufrontera.cl.
Folia Morphologica
|July 14, 2017
Summary
This study analyzed mandibular molar root curvature in Chilean patients, finding that most roots had some curvature, with dilaceration (over 90° curve) affecting less than 1%. Understanding root curvature aids dental treatment planning.
Area of Science:
- Dentistry
- Oral Anatomy
- Radiology
Background:
- Investigated root curvature in mandibular molars from a Chilean population.
- Utilized digital panoramic X-rays for a cross-sectional descriptive analysis.
Purpose of the Study:
- To quantify the degree of distal root curvature in first and second permanent mandibular molars.
- To determine the prevalence of dilaceration in this patient sample.
Main Methods:
- Excluded patients under 18 or with image-altering pathologies.
- Employed AutoCad software to measure root canal angles.
- Defined dilaceration as a root curvature exceeding 90 degrees.
Main Results:
- Analyzed 412 teeth and roots; dilaceration prevalence was 0.73%.
- 84.72% of roots exhibited some form of curvature.
- The middle third of the root showed the highest curvature percentage and average angular degree.
Conclusions:
- Root curvature analysis by third provides clinicians a better understanding of root morphology.
- Prevalence and degree of root curvature, including dilacerations, inform clinicians about potential endodontic treatment challenges.
