The effect of drill design on stability and efficacy of dental implants

Yoon,  Ji-Hoon; Jeon,  Gye-Rok; Yun,  Mi-Jung; Huh,  Jung-Bo; Jeong,  Chang-Mo

J Korean Dent Assoc > Volume 53(2); 2015 > Article

The Journal of The Korean Dental Association 2015;53(2):132-142.
Published online February 28, 2015.

치과용 임플란트의 안전성과 유효성에 대한 드릴 디자인의 효과

윤지훈¹, 전계록², 윤미정³, 허중보⁴, 정창모⁵

^¹부산대학교 의학전문대학원 의공학과
^²부산대학교 의학전문대학원 의공학과
^³부산대학교 치의학전문대학원 보철학교실
^⁴부산대학교 치의학전문대학원 보철학교실
^⁵부산대학교 치의학전문대학원 보철학교실

The effect of drill design on stability and efficacy of dental implants

Ji-Hoon Yoon¹, Gye-Rok Jeon², Mi-Jung Yun³, Jung-Bo Huh⁴, Chang-Mo Jeong⁵

¹Department of Biomedical Engineering School of Medicine, Pusan National University
²Department of Biomedical Engineering School of Medicine, Pusan National University
³Department of Prosthodontics School of Dentistry Pusan National University
⁴Department of Prosthodontics School of Dentistry Pusan National University
⁵Department of Prosthodontics School of Dentistry Pusan National University

Abstract

Purpose
: The objective of this research was to investigate an optimization of drill design factors for implant stability and efficacy through comparative evaluation by the cutting time, heat generation and initial stability. Materials and Methods : Three design factors were considered for the purpose of drill design optimization; the number of flute(2 flute, 3 flute), helix angle(15°, 25°) and drill tip shape(straight, 2-phase). Design factors were selected through comparative evaluation by temperature change, cutting time and ISQ value. Results : Heat generation and cutting time are influenced by all design factors(p<0.05). Drill tip shape was the only factors which influenced to the largest initial stability(p<0.05). Conclusion : Drills with 2 flutes, 2-phase formed drill tip, and 25 degrees of helix angle exhibit a better performance than other design.

Key Words: Drill design;Heat generation;Cutting time;Initial stability;