Evaluation of apical extrusion of debris during ultrasonic versus rotary instrumentation
Purpose: The aim of this study was to compare the apical extrusion of debris during rotary versus ultrasonic instrumentation of root canals. Methods: The sample comprised 20 mandibular premolars with similar root length. To collect the extruded material during endodontic instrumentation, acrylic res...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Brasil |
| Institución: | Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
| Repositorio: | Revista odonto ciência (Online) |
| Idioma: | inglés |
| OAI Identifier: | oai:ojs.revistaseletronicas.pucrs.br:article/2544 |
| Acceso en línea: | https://revistaseletronicas.pucrs.br/fo/article/view/2544 |
| Access Level: | acceso abierto |
| Palabra clave: | Root canal preparation tooth apex waste products Endodontics |
| Sumario: | Purpose: The aim of this study was to compare the apical extrusion of debris during rotary versus ultrasonic instrumentation of root canals. Methods: The sample comprised 20 mandibular premolars with similar root length. To collect the extruded material during endodontic instrumentation, acrylic resin containers were fixed on the root external surfaces. All teeth were prepared with Gates-Glidden drills at the cervical and middle thirds of the root canal. Root canal instrumentation was accomplished using ultrasound or rotary systems (n=10/group) according to the established work length. The resin containers were weighed before and after instrumentation, and the weight difference was considered the amount of extruded material. Data were analyzed by Mann-Whitney test at a 0.05 level of significance. Results: Both instrumentation techniques showed large variability of amount of extruded material with values ranging from 0.0009 to 0.0860 g. No significant difference was found between the two experimental groups (P>0.05). Conclusion: It can be concluded that ultrasonic or rotary systems promoted similar apical extrusion of debris during root canal instrumentation. Key words: Root canal preparation; tooth apex; waste products |
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