지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.8
- 수록면
- 224 - 231 (8page)
이용수
초록· 키워드
오류제보하기
Objectives: To determine the actual revolutions per minute (rpm) values and compare the cyclic fatigue life of Reciproc (RPC, VDW GmbH), WaveOne (WO, Dentsply Maillefer), and TF Adaptive (TFA, Axis/SybronEndo) nickel-titanium (NiTi) file systems using high-speed camera.
Materials and Methods: Twenty RPC R25 (25/0.08), 20 WO Primary (25/0.08), and 20 TFA ML 1 (25/0.08) files were employed in the present study. The cyclic fatigue tests were performed using a dynamic cyclic fatigue testing device, which has an artificial stainless steel canal with a 60° angle of curvature and a 5-mm radius of curvature. The files were divided into 3 groups (group 1, RPC R25 [RPC]; group 2, WO Primary [WO]; group 3, TF Adaptive ML 1 [TFA]). All the instruments were rotated until fracture during the cyclic fatigue test and slow-motion videos were captured using high-speed camera. The number of cycles to failure (NCF) was calculated. The data were analyzed statistically using one-way analysis of variance (ANOVA, p < 0.05).
Results: The slow-motion videos were indicated that rpm values of the RPC, WO, and TFA groups were 180, 210, and 425, respectively. RPC (3,464.45 ± 487.58) and WO (3,257.63 ± 556.39) groups had significantly longer cyclic fatigue life compared with TFA (1,634.46 ± 300.03) group (p < 0.05). There was no significant difference in the mean length of the fractured fragments.
Conclusions: Within the limitation of the present study, RPC and WO NiTi files showed significantly longer cyclic fatigue life than TFA NiTi file.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Parashos P / 2006 / Rotary NiTi instrument fracture and its consequences / J Endod 32:1031~1043
Sattapan B / 2000 / Defects in rotary nickel-titanium files after clinical use / J Endod 26:161~165
Wei X / 2007 / Modes of failure of ProTaper nickel-titanium rotary instruments after clinical use / J Endod 33:276~279
Thompson SA / 2000 / An overview of nickel-titanium alloys used in dentistry / Int Endod J 33:297~310
Cheung GS / 2007 / Instrument fracture: mechanisms, removal of fragments, and clinical outcomes / Endod Topics 16:1~26
Sattapan B / 2000 / Defects in rotary nickel-titanium files after clinical use / J Endod 26:161~165
Wei X / 2007 / Modes of failure of ProTaper nickel-titanium rotary instruments after clinical use / J Endod 33:276~279
Thompson SA / 2000 / An overview of nickel-titanium alloys used in dentistry / Int Endod J 33:297~310
Cheung GS / 2007 / Instrument fracture: mechanisms, removal of fragments, and clinical outcomes / Endod Topics 16:1~26
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