Root canal penetration of a sodium hypochlorite mixture using sonic or ultrasonic activation.
Braz Dent J
; 25(6): 489-93, 2014.
Article
em En
| MEDLINE
| ID: mdl-25590194
The purpose of this ex vivo study was to determine, in "open" and "closed" systems, whether the design has an influence on the penetration length of sodium hypochlorite mixed with a radiopaque contrast medium, measured in millimeters, when delivered using positive pressure (PP) and using sonic (SI) or passive ultrasonic (PUI) activation. Sixty single-rooted teeth were divided into two groups: open and closed systems (n=30). Root canal shaping was performed to a working length of 17 mm. The samples were divided into three sub-groups (n=10) according to irrigant delivery and activation: PP, and SI or PUI activation. By using radiographs, penetration length was measured, and vapor lock was assessed. For the closed group, the penetration distance means were: PP 15.715 (±0.898) mm, SI 16.299 (±0.738) mm and PUI 16.813 (±0.465) mm, with vapor lock occurring in 53.3% of the specimens. In the open group, penetration to 17 mm occurred in 97.6% of the samples, and no vapor lock occurred. Irrigant penetration and distribution evaluation using open and closed systems provide significantly different results. For closed systems, PUI is the most effective in delivering the irrigant to working length, followed by SI.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Irrigantes do Canal Radicular
/
Hipoclorito de Sódio
/
Ultrassom
/
Preparo de Canal Radicular
/
Cavidade Pulpar
/
Irrigação Terapêutica
Tipo de estudo:
Clinical_trials
Limite:
Humans
Idioma:
En
Revista:
Braz Dent J
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Espanha
País de publicação:
Brasil