교정용 미니 임플랜트의 cutting flute의 길이 및 형태에 따른 식립 및 제거 토크의 비교

Metadata Downloads
Issued Date
The purpose of this study was to evaluate the effect of length and shape of cutting flute on mechanical properties of orthodontic mini-implants. Three types of mini-implants with different flute patterns (Type A with 2.6 mm long flute, Type B with 3.9 mm long and straight flute, Type C with 3.9 mm long and helical flute) were inserted into the biomechanical test blocks (Sawbones Inc., USA) with 2 mm and 4 mm cortical bone thicknesses to test insertion and removal torque. In 4 mm cortical bone thickness, Type C mini-implants showed highest maximum insertion torque, then Type A and Type B in order. Type C also showed shortest total insertion time and highest maximum removal torque, but Type A and B didn't showed statistically significant difference in insertion time and removal torque. In 2 mm cortical bone thickness, there were no significant difference in total insertion time and maximum removal torque in three types of mini-implants, but maximum insertion torque of Type A was higher than two other Types of mini-implants. Consideration about length and shape of cutting flute of mini-implant is also required when the placement site has thick cortical bone.
Alternative Title
Effect of cutting flute length and shape on insertion and removal torque of orthodontic mini-implants
Alternative Author(s)
Yun Soon-Dong
일반대학원 치의학과
Awarded Date
Table Of Contents
목 차
표목차 ---------------------------------------------- ii
도목차 ---------------------------------------------- iii
영문초록(ABSTRACT) -------------------------------- iv
I. 서 론 ---------------------------------------------- 1
II. 연구재료 및 방법 ----------------------------------- 4
1. 연구재료 -------------------------------- 4
2. 연구방법 -------------------------------- 6
3. 통계처리 -------------------------------- 8

Ⅲ. 연구 성적 ----------------------------------------- 9

Ⅳ. 총괄 및 고안 -------------------------------------- 12

Ⅴ. 결 론 -------------------------------------------- 16
참고문헌 --------------------------------------------- 17
조선대학교 대학원
윤순동. (2009). 교정용 미니 임플랜트의 cutting flute의 길이 및 형태에 따른 식립 및 제거 토크의 비교.
Appears in Collections:
General Graduate School > 3. Theses(Master)
Authorize & License
  • AuthorizeOpen
  • Embargo2009-08-04
Files in This Item:

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.