Cyclic fatigue of Reciproc Blue and Reciproc instruments exposed to intracanal temperature in simulated severe apical curvature.
Clin Oral Investig
; 23(5): 2077-2082, 2019 May.
Article
em En
| MEDLINE
| ID: mdl-30244383
ABSTRACT
OBJECTIVE:
The aim of this study was to evaluate the cyclic fatigue resistance of Reciproc and Reciproc Blue by testing in a severe apical curvature at intracanal temperature. MATERIALS ANDMETHODS:
Eighteen Reciproc R25 (25.08) and Reciproc Blue (25.08) instruments were tested in a cyclic fatigue device at body temperature (37 °C) using a stainless steel block with an artificial canal with a curvature angle of 90° and radius of curvature of 2 mm. The number of cycles to fracture (NCF) was calculated. The instruments were examined by differential scanning calorimetry (DSC). The data were analyzed using both Student's t tests and Weibull analysis.RESULTS:
The NCF values of Reciproc R25 were significantly lower than Reciproc Blue R25 (P < 0.05). There was no significant difference between the instruments regarding the length of fractured fragments (P > 0.05).CONCLUSIONS:
Reciproc Blue R25 instruments displayed significantly higher NCF than Reciproc R25. CLINICAL RELEVANCE This study reported that novel reciprocating blue wire instruments exhibited higher cyclic fatigue resistance than its precedence M-wire instrument when tested in severely curvatured canals.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Temperatura
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Teste de Materiais
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Preparo de Canal Radicular
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Instrumentos Odontológicos
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Falha de Equipamento
Idioma:
En
Revista:
Clin Oral Investig
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Turquia