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근관치료 기구의 기계 형태적 특성과 이에 따른 임상적 영향 고찰

Mechanical and geometric features of endodontic instruments and its clinical effect

김현철
대한치과보존학회 (Korean Academy Of Conservative Dentistry)|2011.01|Restorative Dentistry and Endodontics|제36권 제1호|pp. 1-11

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참고문헌

키워드

형태Geometry횡단면Fracture파절Cross-section열처리기계적 반응revised 10 January 2011accepted 10 January 2011-NiTi 전동 파일Heat treatment; Mechanical responseNiTi rotary file -Received 3 January 2011
주제분류치의학

초록

서론: 이 문헌의 목적은 Nickel-titanium (NiTi) 전동 파일의 기계적 형태적 양상과 이에 의한 임상적 연관성을 고찰하는것이다. NiTi 전동 파일은 다양한 고유의 형태로 시장에 소개되었고 경쟁 상품에 비해서 근관 성형에 더 나은 능력을 가졌다고 주장하고 있다. 본론: 이 문헌에서는 NiTi 전동 파일의 형태(예. 팁, 테이퍼, helical angle 등)와 파일의 임상 적용 성과 사이의 가능한 상관관계를 다음과 같이 다룬다;- NiTi 전동 파일의 파절 양상- 비활성 파일팁과 glide path - 파일 경사도와 임상 효과- 파일 횡단면적과 임상 효과- 열처리와 표면 특성- Screw-in 효과와 치근 상아질의 유지- Screw-in 효과를 줄이기 위한 고안결론: 이상의 내용을 바탕으로, 임상가는 다양한 NiTi 전동 기구를 사용함에 있어 임상 상황에 적절한 장점을 고려하여 선택하고 사용할 수 있는 도움을 받을 수 있을 것이다.

Abstract

Introduction: The aim of this paper is to discuss the mechanical and geometric features of Nickel-titanium (NiTi) rotary files and its clinical effects. NiTi rotary files have been introduced to the markets with their own geometries and claims that they have better ability for the root canal shaping than their competitors. The contents of this paper include the (possible) interrelationship between the geometries of NiTi file (eg. tip, taper, helical angle, etc) and clinical performance of the files as follows;- Fracture modes of NiTi rotary files - Non-cutting guiding tip and glide path - Taper and clinical effects - Cross-sectional area and clinical effects - Heat treatments and surface characteristics - Screw-in effect and preservation of root dentin integrity - Designs for reducing screw-in effect Conclusions: Based on the reviewed contents, clinicians may have an advice to use various brands of NiTi rotary instruments regarding their advantages which would fit for clinical situation. [J Kor Acad Cons Dent 2011;36(1):1-11.]

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