Effect of Endodontic Irrigation Protocols on Crown Fracture Resistance.
J Contemp Dent Pract
; 19(7): 768-772, 2018 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-30066678
AIM: This study aimed to evaluate the fracture resistance of tooth crowns endodontically irrigated using different protocols. MATERIALS AND METHODS: A total of 76 bovine incisors were divided into four groups (n = 19): irrigation with distilled water (control; CON); conventional irrigation with positive apical pressure (PAP); passive ultrasonic irrigation using continuous flushing (PUI); and irrigation with PAP and heated sodium hypo-chlorite solution (PHS). The force required to fracture the crown was measured on a universal testing machine at an angle of 45°. RESULTS: The CON group had higher fracture resistance (351.71 ± 58.66 N) than the PAP and PUI groups (140.96 ± 37.26 N; 167.49 ± 40.08 N respectively). The PHS group had the lowest fracture resistance value (115.15 ± 41.07 N). Irrigation protocols had a significant effect on crown resistance (p < 0.01). CONCLUSION: Teeth subjected to irrigation with heated sodium hypochlorite showed decreased resistance to crown fracture. CLINICAL SIGNIFICANCE: The contact of the irrigating solution with the root canal walls potentially can cause their weakness, determining crown fracture.
Palavras-chave
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Irrigantes do Canal Radicular
/
Hipoclorito de Sódio
/
Fraturas dos Dentes
/
Coroa do Dente
/
Dente não Vital
/
Irrigação Terapêutica
Tipo de estudo:
Guideline
Limite:
Animals
Idioma:
En
Revista:
J Contemp Dent Pract
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Índia