Your browser doesn't support javascript.
loading
Influence of working length and anatomical complexities on the apical root canal filling: a nano-CT study
Lobo, Natalia Siqueira; Jacobs, Reinhilde; Vasconcelos, Karla de Faria; Wanderley, Victor Aquino; Santos, Bernardo Camargo dos; Marciano, Marina Angélica; Zaia, Alexandre Augusto.
  • Lobo, Natalia Siqueira; State University of Campinas. Piracicaba Dental School. Department of Restorative Dentistry, Endodontic Division. Piracicaba. BR
  • Jacobs, Reinhilde; University of Leuven and Oral & Maxillofacial Surgery. Faculty of Medicine. OMFS IMPATH research group, Department of Imaging and Pathology. Leuven. BE
  • Vasconcelos, Karla de Faria; University of Leuven and Oral & Maxillofacial Surgery. Faculty of Medicine. OMFS IMPATH research group, Department of Imaging and Pathology. Leuven. BE
  • Wanderley, Victor Aquino; State University of Campinas. Piracicaba Dental School. Department of Oral Diagnosis, Division of Oral Radiology. Piracicaba. BR
  • Santos, Bernardo Camargo dos; Federal University of Rio de Janeiro. Department of Nuclear Engineering. Rio de Janeiro. BR
  • Marciano, Marina Angélica; State University of Campinas. Piracicaba Dental School. Department of Restorative Dentistry, Endodontic Division. Piracicaba. BR
  • Zaia, Alexandre Augusto; State University of Campinas. Piracicaba Dental School. Department of Restorative Dentistry, Endodontic Division. Piracicaba. BR
Braz. dent. j ; 33(3): 1-7, July-Sept. 2022. tab, graf
Article in English | LILACS-Express | LILACS, BBO | ID: biblio-1384036
ABSTRACT
Abstract The present study aimed to compare the filled volume by gutta-percha and sealer in the apical region of the main canal and ramifications, after instrumentation at two different working lengths using nano-computed tomography (nano-CT). Twenty-two premolars with apical ramifications were selected after micro-computed tomography evaluation and were randomly divided into groups for further endodontic instrumentation at two different working lengths G1 - Root canals shaped 1 mm short of the apical foramen (n=11), and G2 - Root canals shaped at the apical foramen (n=11). After completing root treatment, nano-CT images were acquired, and the filled volume by gutta-percha and sealer in the main canal apical 0-4 mm and 0-1 mm ranges, and apical ramifications were objectively measured by an operator specialized in both radiology and endodontics, blinded for both groups. The Mann-Whitney test was applied to compare both groups regarding the filling of the main canal apical ranges and apical ramifications with a significance level of 5% (α ≤ 0.05). It was observed that root canals shaped at the apical foramen had a larger volume of the main canal filled than root canals shaped 1 mm short of the apical foramen, at both apical ranges (0-4 and 0-1 mm) (p<0.05). Regarding the filling of the apical ramifications, there was no significant difference between groups (p>0.05). In conclusion, the root canals shaped at apical foramen exhibited increased filling volume of the main canal in the apical region. However, neither of both working lengths influenced filling of the apical ramifications.
RESUMO
Resumo O presente estudo teve como objetivo comparar o volume preenchido por guta-percha e cimento na região apical do canal principal e ramificações, após instrumentação em dois comprimentos de trabalho diferentes, por meio de nano tomografia computadorizada (nano-TC). Vinte e dois pré-molares com ramificações apicais foram selecionados após avaliação por micro-tomografia computadorizada e foram divididos aleatoriamente em grupos para posterior instrumentação endodôntica em dois comprimentos de trabalho diferentes G1 - Canais radiculares instrumentados 1 mm aquém do forame apical (n = 11) e G2 - Canais radiculares instrumentados até o forame apical (n = 11). Após a obturação dos canais radiculares, imagens de nano-CT foram adquiridas, e o volume preenchido por guta-percha e cimento nas faixas apicais de 0-4 mm e 0-1 mm do canal principal, e ramificações apicais, foram avaliadas objetivamente por um especialista em radiologia e endodontia, cego para ambos os grupos. O teste de Mann-Whitney foi aplicado para comparar os dois grupos quanto ao preenchimento das faixas apicais do canal principal e ramificações com nível de significância de 5% (α ≤ 0,05). Observou-se que canais radiculares instrumentados até o forame apical apresentaram maior volume do canal principal preenchido do que canais radiculares instrumentados 1 mm aquém do forame apical, em ambas as faixas apicais (0-4 e 0-1 mm) (p <0,05) Em relação ao preenchimento das ramificações apicais, não houve diferença significativa entre os grupos (p> 0,05). Em conclusão, os canais radiculares instrumentados até o forame apical mostraram um maior volume de preenchimento na região apical do canal principal. No entanto, os dois diferentes comprimentos de trabalho não influenciaram o preenchimento das ramificações apicais.


Full text: Available Index: LILACS (Americas) Type of study: Controlled clinical trial Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2022 Type: Article / Project document Affiliation country: Belgium / Brazil Institution/Affiliation country: Federal University of Rio de Janeiro/BR / State University of Campinas/BR / University of Leuven and Oral & Maxillofacial Surgery/BE

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Index: LILACS (Americas) Type of study: Controlled clinical trial Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2022 Type: Article / Project document Affiliation country: Belgium / Brazil Institution/Affiliation country: Federal University of Rio de Janeiro/BR / State University of Campinas/BR / University of Leuven and Oral & Maxillofacial Surgery/BE