Comparison of debris extruded apically and working time used by ProTaper Universal rotary and ProTaper retreatment system during gutta-percha removal
J. appl. oral sci
; 18(6): 542-545, Nov.-Dec. 2010.
Article
en En
| LILACS
| ID: lil-573721
Biblioteca responsable:
BR1.1
ABSTRACT
OBJECTIVE:
The aim of this study was to evaluate the in vitro action of ProTaper retreatment files and ProTaper Universal in the retreatment of mandibular premolars. MATERIAL ANDMETHODS:
The amount of debris extruded apically was measured and the time to reach the working length and to complete the removal of gutta-percha was observed. Thirty teeth had their canals prepared using ProTaper Universal files and were obturated by the single cone technique. The teeth were then stored at 37ºC in a humid environment for 7 days. During the use of the rotary instruments for root canal filling removal, the apical portions of the teeth were attached to the open end of a resin tube to collect the apically extruded debris.RESULTS:
ProTaper Universal files were significantly faster (p=0.0011) than the ProTaper retreatment files to perform gutta-percha removal, but no significant difference was found between the files regarding the time to reach the working length or the amount of apical extrusion.CONCLUSIONS:
ProTaper Universal rotary had better results for endodontic retreatment, and both techniques promote similar apical extrusion of debris.Palabras clave
Texto completo:
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Índice:
LILACS
Asunto principal:
Técnicas In Vitro
/
Preparación del Conducto Radicular
/
Instrumentos Dentales
/
Gutapercha
Límite:
Humans
Idioma:
En
Revista:
J. appl. oral sci
Asunto de la revista:
ODONTOLOGIA
Año:
2010
Tipo del documento:
Article