| 왕복운동 및 회전운동 근관성형용 전동모터 간의 진동 양상 비교 |
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전영주1, 김진우2, 조경모3, 박세희4, 장훈상5 |
1강릉원주대학교 치과대학 치의학과 치과보존학교실
2강릉원주대학교 치과대학 치의학과 치과보존학교실
3강릉원주대학교 치과대학 치의학과 치과보존학교실
4강릉원주대학교 치과대학 치의학과 치과보존학교실
5전남대학교 치의학전문대학원 치의학과 치과보존학교실 |
| Vibration characteristics of endodontic motors with different motion: reciprocation and conventional rotation |
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Yeong-Ju Jeon1, Jin-Woo Kim2, Kyung-Mo Cho3, Se-Hee Park4, Hoon-Sang Chang5 |
1Department of Conservative Dentistry, Gangneung-Wonju National University
2Department of Conservative Dentistry, Gangneung-Wonju National University
3Department of Conservative Dentistry, Gangneung-Wonju National University
4Department of Conservative Dentistry, Gangneung-Wonju National University
5Department of Conservative Dentistry, School of Dentistry, Chonnam National University |
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| Abstract |
Objectives
By introduced reciprocation motion file in dentistry, dentists benefit simple canal shaping procedure and time-saving. But, reciprocation motion generates uncomfortable vibration to doctors and patients. Because there was no study about this consideration, this study compared vibration pattern and power generated from reciprocation motion motor and conventional rotary motor. Materials & Methods: One conventional rotary motor; X-Smart (Dentsply Maillefer, Ballaigues, Switzerland); and two reciprocating motors; WaveOne Motor (Dentsply Maillefer, Ballaigues, Switzerland) and X-SMART PLUS (Dentsply Maillefer, Ballaigues, Switzerland); were used in this study. Triaxial ICP(R) Accelerometer (Model 356A12, PCB piezotronics, New York, USA) was attached on motor's handpiece head, and was measured tri-axial vibratory acceleration with NI Sound and Vibration Assistant 2009 software (National Instruments, Texas, USA). Mean vibratory acceleration and maximum vibratory acceleration was measured on fixed position and handed position. The results of vibratory acceleration were statistically analyzed using ANOVA and multiple comparisons are made using Turkey's test at p<0.05 level. Results: Reciprocating motors showed higher mean vibratory acceleration and maximum vibratory acceleration than conventional rotary motor (p<0.05). Between reciprocating motors, X-SMART PLUS had lower mean vibratory acceleration and maximum vibratory acceleration than WaveOne Motor (p<0.05). Conclusion: Reciprocating motors generate more vibration than conventional rotary motor. Further study about effect of vibration to dentist and patient is needed. And it seems to be necessary to make a standard about vibration level in endodontic motors. |
| Key Words:
Endodontic motor vibration;Reciprocation;Triaxial accelerometer;WaveOne;Reciproc;X-Smart;WaveOne Motor;X-SMART PLUS; |
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