Shaping ability of Reciproc and TF Adaptive systems in severely curved canals of rapid microCT-based prototyping molar replicas
J. appl. oral sci
;
22(6): 509-515, Nov-Dec/2014. tab, graf
Artículo
en Inglés
| LILACS, BBO
| ID: lil-732585
ABSTRACT
Objective:
To evaluate the shaping ability of Reciproc and Twisted-File Adaptive systems in rapid prototyping replicas. Material andMethods:
Two mandibular molars showing S-shaped and 62-degree curvatures in the mesial root were scanned by using a microcomputed tomography (μCT) system. The data were exported in the stereolitograhic format and 20 samples of each molar were printed at 16 µm resolution. The mesial canals of 10 replicas of each specimen were prepared with each system. Transportation was measured by overlapping radiographs taken before and after preparation and resin thickness after instrumentation was measured by μCT.Results:
Both systems maintained the original shape of the apical third in both anatomies (P>0.05). Overall, considering the resin thickness in the 62-degree replicas, no statistical difference was found between the systems (P>0.05). In the S-shaped curvature replica, Reciproc significantly decreased the thickness of the resin walls in comparison with TF Adaptive.Conclusions:
The evaluated systems were able to maintain the original shape at the apical third of severely curved mesial canals of molar replicas. .
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Preparación del Conducto Radicular
/
Instrumentos Dentales
/
Cavidad Pulpar
/
Microtomografía por Rayos X
/
Modelos Anatómicos
/
Diente Molar
Tipo de estudio:
Estudios de evaluación
/
Estudio pronóstico
Límite:
Humanos
Idioma:
Inglés
Revista:
J. appl. oral sci
Asunto de la revista:
Odontología
Año:
2014
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
University of São Paulo/BR
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