Fused roots of maxillary molars: characterization and prevalence in a Latin American sub-population: a cone beam computed tomography study
| Autor: | María del Pilar Blanco-Uribe, Jose Luis Mejia-Cardona, Elena Carolina Chaverra-Mesa, Maytté Marcano-Caldera, Didier Rodríguez-Lezama, José Hernán Parra-Sánchez |
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| Rok vydání: | 2019 |
| Předmět: |
Molar
Cone beam computed tomography Fused teeth Root canal Population Root anatomy Computed tomography Mandibular second molar C-shape canal 03 medical and health sciences Colombian population 0302 clinical medicine Treatment quality stomatognathic system medicine education Orthodontics education.field_of_study Cone-beam CT medicine.diagnostic_test business.industry 030206 dentistry General Medicine Maxillary molars medicine.anatomical_structure 030220 oncology & carcinogenesis business Research Article |
| Zdroj: | Restorative Dentistry & Endodontics |
| ISSN: | 2234-7666 2234-7658 |
| Popis: | Objectives The upper molars generally have three roots; therefore, different combinations of fusion can occur, increasing the possibility of finding more complex root canal systems. The purpose of this study was to evaluate the prevalence and characterization of fused roots in first and second maxillary molars using cone-beam computed tomography (CBCT) in a Colombian population. Materials and methods A total of 1274 teeth were evaluated, of which 534 were maxillary first molars and 740 were maxillary second molars. Axial sections were made at the cervical, middle, and apical levels to determine the prevalence of root fusion and the types of fusion. Results Overall, 43% of the molars (n = 551) presented some type of fused root. Root fusion was present in 23.4% of the maxillary first molars. The most frequent type of fused root was type 3 (distobuccal-palatal; DB-P) (58.9%). Root fusion was observed in 57.6% of the maxillary second molars, and the most prevalent type of fused root was type 6 (cone-shaped) (45.2%). Of the maxillary molars, 12.5% were classified as C-shaped. Conclusion Within the limitations of this study, there was a high prevalence of fused roots in maxillary molars in the Colombian population, mainly in the maxillary second molars. In first molars, the most common type of fused root was type 3 (DB-P) and in second molars, the most common type was type 6 (cone-shaped). Additionally, molars with root fusion presented variation at different levels of the radicular portion, with implications for treatment quality. |
| Databáze: | OpenAIRE |
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