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Fused roots of maxillary molars: characterization and prevalence in a Latin American sub-population: a cone beam computed tomography study.
Restor Dent Endod 2019; 44(2):e16RD

Abstract

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.

Authors+Show Affiliations

Postgraduate Endodontics Program. Autonomous University of Manizales, Manizales, Colombia.Postgraduate Endodontics Program. Autonomous University of Manizales, Manizales, Colombia.Postgraduate Endodontics Program. Autonomous University of Manizales, Manizales, Colombia.Postgraduate Endodontics Program. Autonomous University of Manizales, Manizales, Colombia.Oral Health Department. Autonomous University of Manizales, Manizales, Colombia.Math and Statistics Department. National University of Colombia, Campus Palogrande, Manizales, Colombia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31149614

Citation

Marcano-Caldera, Maytté, et al. "Fused Roots of Maxillary Molars: Characterization and Prevalence in a Latin American Sub-population: a Cone Beam Computed Tomography Study." Restorative Dentistry & Endodontics, vol. 44, no. 2, 2019, pp. e16.
Marcano-Caldera M, Mejia-Cardona JL, Blanco-Uribe MDP, et al. Fused roots of maxillary molars: characterization and prevalence in a Latin American sub-population: a cone beam computed tomography study. Restor Dent Endod. 2019;44(2):e16.
Marcano-Caldera, M., Mejia-Cardona, J. L., Blanco-Uribe, M. D. P., Chaverra-Mesa, E. C., Rodríguez-Lezama, D., & Parra-Sánchez, J. H. (2019). Fused roots of maxillary molars: characterization and prevalence in a Latin American sub-population: a cone beam computed tomography study. Restorative Dentistry & Endodontics, 44(2), pp. e16. doi:10.5395/rde.2019.44.e16.
Marcano-Caldera M, et al. Fused Roots of Maxillary Molars: Characterization and Prevalence in a Latin American Sub-population: a Cone Beam Computed Tomography Study. Restor Dent Endod. 2019;44(2):e16. PubMed PMID: 31149614.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fused roots of maxillary molars: characterization and prevalence in a Latin American sub-population: a cone beam computed tomography study. AU - Marcano-Caldera,Maytté, AU - Mejia-Cardona,Jose Luis, AU - Blanco-Uribe,María Del Pilar, AU - Chaverra-Mesa,Elena Carolina, AU - Rodríguez-Lezama,Didier, AU - Parra-Sánchez,Jose Hernán, Y1 - 2019/04/22/ PY - 2018/11/12/received PY - 2019/02/04/revised PY - 2019/02/04/accepted PY - 2019/6/1/entrez PY - 2019/6/1/pubmed PY - 2019/6/1/medline KW - C-shape canal KW - Cone-beam CT KW - Fused teeth KW - Maxillary molars KW - Root anatomy SP - e16 EP - e16 JF - Restorative dentistry & endodontics JO - Restor Dent Endod VL - 44 IS - 2 N2 - 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. SN - 2234-7658 UR - https://www.unboundmedicine.com/medline/citation/31149614/Fused_roots_of_maxillary_molars:_characterization_and_prevalence_in_a_Latin_American_sub-population:_a_cone_beam_computed_tomography_study L2 - https://rde.ac/DOIx.php?id=10.5395/rde.2019.44.e16 DB - PRIME DP - Unbound Medicine ER -