Evaluation research of three methods of maintenance of handpiece
10.3760/j.issn.1674-2907.2014.19.044
- VernacularTitle:三种牙科手机养护方法的效果评价研究
- Author:
Dongling LIU
1
;
Yuling WANG
;
Xin JI
;
Xiuli WANG
;
Meng YANG
;
Yun LING
Author Information
1. 130021 长春，吉林大学口腔医院护理部
- Keywords:
Dental instrument;
Handpiece;
Maintenance;
Manual filling;
Machine oil injection
- From:
Chinese Journal of Modern Nursing
2014;20(19):2425-2428
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effect of maintenance of handpiece by manual filling and machine oil injection method , so as to perfect the manual filling process .Methods Totals of 600 extraction used handpiece after cleaned and dried were randomly divided into six groups .Group A was given manual filling , Group B1 ,B2 ,B3 ,B4 were given manual filling and pressure air gun to blow the handpiece cavity for 1-2,4-5, 9-10,14-15 seconds.Group C used oil filling machine .To evaluate the effect of maintenance of handpiece , the turbo-rotors bearing surface traces after sterilization with a microscope were observed , and the remaining oil injection weight was weighed and the oil area of handpiece packaging sterilization bags was measured . Results Turbo-rotors bearings surfaces were visible traces of lubricating oil left after sterilization for all the six groups.The comparison results of the remaining oil weight of turbo-rotors bearing surfaces showed that group C and group A, B1, B3, B4 were significantly different (P<0.05), but group C and group B2 had no significant difference (P>0.05).The comparison results of the oil area of handpiece packaging sterilization bags showed that group C and group A, B1, B3 tail, B4 had significant differences (P<0.05), while group C and group B2, B3 head had no significant difference (P>0.05).Conclusions The effect of maintenance of machine oil is better than pure manual filling .The perfecting manual filling process of maintenance of handpiece , which is manual filling , which using the pressure air gun to blow the handpiece cavity for 4-5 seconds , can achieve the equivalent maintenance effect with the machine oil injection .
