| Texto completo | |
| Autor(es): |
Ordinola-Zapata, R.
[1]
;
Monteiro Bramante, C.
[1]
;
Gagliardi Minotti, P.
[1]
;
Cavalini Cavenago, B.
[1]
;
Gutmann, J. L.
[2]
;
Moldauer, B. I.
[3]
;
Versiani, M. A.
[4]
;
Hungaro Duarte, M. A.
[1]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Dept Endodont, Bauru Dent Sch, Bauru - Brazil
[2] Texas A&M Univ Syst Hlth Sci Ctr, Dept Endodont, Baylor Coll Dent, Dallas, TX - USA
[3] Larkin Community Hosp, Adv Educ Gen Dent Program, Miami, FL - USA
[4] Univ Sao Paulo, Dept Endodont, Ribeirao Preto Dent Sch, BR-14049 Ribeirao Preto - Brazil
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | International Endodontic Journal; v. 48, n. 8, p. 807-813, AUG 2015. |
| Citações Web of Science: | 13 |
| Resumo | |
AimTo describe morphometric aspects of the internal anatomy of C-shaped mandibular premolars from a Brazilian subpopulation using micro-CT analysis. MethodologyFirst mandibular premolars with radicular grooves (n=123) were scanned using a micro-computed tomography system. After cross-section analysis, 83 specimens were identified with a C-shaped canal and selected for micro-CT analysis. Number and location of canals according to Vertucci's classification, distances between anatomic landmarks, occurrence of apical deltas, furcation canals, prevalence of C-shaped cross-sections at five levels as well as 2-dimensional analysis (Area, perimeter, roundness, aspect ratio, major and minor diameters) were performed for the more prevalent anatomical features. Data were compared statistically using Kruskal-Wallis tests (=0.05). ResultsThe more prevalent anatomical types according to Vertucci's classification were Type I (13%), III (8%), V (37%) and VII (2%). Mean distances from the furcation to the cemento-enamel junction were in the range of 5.36-5.65mm. Apical deltas and furcation canals were present in 36 (43%) and 27 (33%) specimens, respectively. C-shaped cross-sections were more prevalent at the middle (56%) and apical middle levels (81%). Overall, significant differences were found in the 2-dimensional analyses between single canals at the apical third and buccal and lingual canals of Vertucci's V classification (P<0.05). ConclusionsIn this Brazilian subpopulation, C-shaped canal configuration of the root canal system was found in 67% of extracted first mandibular premolars with radicular grooves. Vertucci's types I and V were the most prevalent anatomical variations. C-shaped cross-sections were more prevalent in the middle third, and the presence of apical deltas was the most common feature in the apical third. (AU) | |
| Processo FAPESP: | 13/03695-0 - Avaliação da anatomia, protocolos de instrumentação e de descontaminação de raízes por meio de microtomografia, prototipagem de alta resolução, microscopia óptica e confocal. |
| Beneficiário: | Ronald Ordinola Zapata |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 10/16072-2 - Microtomógrafo (MicroTC) no estudo da anatomia dental e nos procedimentos endodônticos |
| Beneficiário: | Clovis Monteiro Bramante |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |