| 임상가를 위한 특집 2 - 엔진구동형 니켈-티타늄 파일의 디자인에 관한 고찰 |
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황호길 |
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조선대학교 치의학전문대학원 치과보존학교실 |
| A review regarding on design of engine-driven nickel-titanium file |
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Ho-Keel Hwang |
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Department of Conservative Dentistry, School of Dentistry, Chosun University |
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| Abstract |
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The purpose of this study was to give a guideline for selecting the nickel-titanium (NiTi) file by review from many studies. Since the early 1990s, several instrument systems manufactured from NiTi have been introduced into endodontic practice. The specific design characteristics vary, such as tip shape and size, cross sectional view, helix angle, and pitch space. Some of the early systems have been removed from the market or play only minor roles; others are still widely used. New designs continually are produced, but the extent to which clinical outcomes will depend on design characteristics is difficult to forecast. In this study, I have reviewed the different design characteristics in respect of the safety and efficiency. With the review from many studies, I concluded that the clinicians must be understand the specific design characteristics for selecting the ideal NiTi rotary instruments. |
| Key Words:
Nickel-titanium;design characteristics;rotary instruments;tip shape;cross section;helix angle;pitch space; |
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