Influence of ultrasonic cleaning time and disinfecting frequency on physical property of Ni- Ti root canal files
10.3760/cma.j.issn.1672-7088.2012.02.037
- VernacularTitle:清洗时间和消毒灭菌频率对镍钛根管锉物理性能的影响
- Author:
Yuying LIU
;
Wei SUN
;
Kun LIU
;
Benxiang HOU
- Publication Type:Journal Article
- Keywords:
Ultrasonic cleaning;
High temperature and high pressure;
Ni-Ti rotary instruments;
Instrument breaking
- From:
Chinese Journal of Practical Nursing
2012;28(2):1-3
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the influence of ultrasonic cleaning time and disinfecting frequency on physical property of Ni-Ti root canal files in order to understand the safety and feasibility of ultrasonic cleaning and high temperature and high pressure disinfection for Ni-Ti root canal files.Methods The Ni-Ti root canal files used in this study were ProTaper,Mtwo and Hero642,5 files were selected from each kind.After the ultrasonic cleaning and high temperature high pressure disinfection the files underwent breaking test,the breaking time was recorded.Unclean and non-sterile Ni-Ti root canal files were set as control.Results After different time of ultrasonic cleaning,ProTaper and Mtwo showed no difference in breaking time,but the result was opposite in Hero642.After different times of disinfection,Mtwo showed no difference in breaking time,but significant difference was seen in the other two kinds.Conclusions Ultrasonic cleaning time has no significant influence on physical property of ProTaper and Mtwo Ni- Ti root canal files,but the influence was significant for Hero642.Disinfection frequency had no significant influence on physical property of ProTaper and Hero642 Ni-Ti root canal files,but the influence was significant for Mtwo Ni-Ti root canal files.
