Prevalence of complex root canal morphology in the mandibular first and second premolars in Thai population: CBCT analysis
| Autor: | Mettachit Navachinda, Sirinya Kulvitit, Paramee Thanaruengrong, Pornkawee Charoenlarp |
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| Rok vydání: | 2021 |
| Předmět: |
Radiographic imaging
Root canal High variability Mandible Thai population stomatognathic system Prevalence Trifurcation otorhinolaryngologic diseases Humans Medicine Bicuspid Tooth Root Mandibular premolar General Dentistry Orthodontics business.industry Research CBCT RK1-715 Spiral Cone-Beam Computed Tomography Mandibular first premolar Root canal morphology Cone-Beam Computed Tomography Thailand C-shaped root canal stomatognathic diseases medicine.anatomical_structure Dentistry Oral and maxillofacial surgery Bifurcation Dental Pulp Cavity business |
| Zdroj: | BMC Oral Health BMC Oral Health, Vol 21, Iss 1, Pp 1-12 (2021) |
| ISSN: | 1472-6831 |
| Popis: | Background Mandibular premolars demonstrate high variability in root canal morphology, especially mandibular first premolars. The purposes of this study were to determine the prevalence of root canal configurations of mandibular premolars according to Vertucci classification in a Thai population. Methods Total of 1159 CBCT images of Thai patients who received radiographic imaging at the Department of Radiology, Faculty of Dentistry, Chulalongkorn University in 2017–2018 was evaluated. The data were reported using descriptive statistics and the relationship between the prevalence of the root canal complexities and sex was analyzed using the chi-squared test. Results The most common root canal configuration was Vertucci type I, with a 63.1% and 98% prevalence in the mandibular first and second premolars, respectively. More than 98% of mandibular premolars had a single root. The prevalence of a bifurcation was 28.5% and 1.5% in the mandibular first and second premolars, respectively. The prevalence of a trifurcation was 3.2% in the mandibular first premolar. A C-shaped root canal was observed at 23.7% and 0.7% in the mandibular first and second premolars, respectively. The level of branching was mostly found at the middle 1/3 of the root. Bilateral appearance of the same root canal configuration was identified in 80.3% and 95.9% in the mandibular first and second premolars, respectively. There was no relationship between sex and the prevalence of a bifurcation, trifurcation, or C-shaped root canal. Conclusion Mandibular first premolars have more root canal complexities than mandibular second premolars. Horizontal tube shift x-ray technique, CBCT, dental operating microscope, and knowledge of root canal configurations have an important role in root canal identification in mandibular premolar with suspected complex root canal morphology. |
| Databáze: | OpenAIRE |
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