The quality of ultrasonic root-end preparation:A quantitative study
- VernacularTitle:超声波根尖倒预备的定量研究
- Author:
Pingjuan ZHANG
;
Wenxia CHEN
;
Qixin ZENG
;
Fangfang XIE
- Publication Type:Journal Article
- Keywords:
Ultrasonic instruments;
Apicoectomy;
Retropreparation
- From:
Journal of Practical Stomatology
2001;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the quality of root-end preparation quantitatively between ultrasonic retrotips and traditional slow-speed handpiece.Methods:27 maxillary second bicuspid teeth with two canals and an isthmus were randomly assigned to 3 groups.Root-end preparations were made respectively using ultrasonic diamond tip Berutti and niti tip RE2,ultrasonic #40K file and slow-speed handpiece with No.2 round bur.Image processing and analysis system were used to measure the preoperation and postoperation parameters for further evaluating the difference between the two techniques.Results:The cutting volume of ultrasonic instruments was less than slow-speed handpiece(P
