Analysis of the presence of filling material in oval root canals using computed microtomography after endodontic retreatment performed by different techniques
Braz. j. oral sci
;
16: e17070, jan.-dez. 2017. ilus
Artículo
en Inglés
| LILACS, BBO
| ID: biblio-883661
ABSTRACT
The aim of this study was to evaluate the presence of filling material in oval root canals after endodontic retreatment performed by different techniques, considering the area (mm2), location and root third using computed microtomography (µ-CT). Methods:
Thirty human lower central incisor underwent biomechanical preparation, root filling and filling removal using two techniques (n=15) MN- manual retreatment technique (Gates Glidden burs and stainless steel manual files); and RT- rotary retreatment technique (ProTaper Universal and ProTaper Retreatment Systems). Cross-sectional images of the teeth were made using µ-CT to identify the presence of remaining filling in all root thirds of the canal walls. The remaining material detected in 150 µ-CT sections was identified and its area quantified (mm2) for each root third individually.Results:
Data analysis showed no difference in the remaining area of filling material (p=0.8611) for the both techniques. Higher frequency of remaining material was verified in the lingual wall of the root canals. Regardless of the retreatment technique, the apical third showed lager areas of remaining filling material. More areas of remaining material were detected in the cervical third of the RT group, whereas for the MN group, most areas were observed in the middle and apical thirds.Conclusion:
According to our results, no significant differences were verified between the efficiency of the rotary and manual techniques for removing filling material due to the interferences caused by the root canal anatomy (AU)
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Preparación del Conducto Radicular
/
Retratamiento
/
Microtomografía por Rayos X
Límite:
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Braz. j. oral sci
Asunto de la revista:
Odontología
Año:
2017
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Federal de Uberlândia/BR
Similares
MEDLINE
...
LILACS
LIS