Effect of neck design on peri-implant tissue responses in external connection type implant : a prospective pilot clinical study

Bae,  Eun-Bin; Lee,  So-Hyoun; Jeon,  Young-Chan; Kang,  Eun-Sook; Park,  Sang-Rye; Lee,  Jin-Ju; Huh,  Jung-Bo

doi:2017.55.11.766

J Korean Dent Assoc > Volume 55(11); 2017 > Article

Journal of Korean Dental Association 2017;55(11):766-776.
DOI: https://doi.org/10.22974/jkda.2017.55.11.002 Published online November 30, 2017.

외측연결형 임플란트 고정체의 경부 디자인이 임플란트 주위조직에 미치는 영향에 대한 전향적 예비 임상연구

배은빈¹, 이소현², 전영찬³, 강은숙⁴, 박상례⁵, 이진주⁶, 허중보⁷

^¹부산대학교 치의학전문대학원 치과보철학교실
^²부산대학교 치의학전문대학원 치과보철학교실
^³부산대학교 치의학전문대학원 치과보철학교실
^⁴인제대학교 해운대 백병원 치과보철과
^⁵경남정보대학교 치위생과
^⁶부산대학교 치의학전문대학원 치과보철학교실
^⁷부산대학교 치의학전문대학원 치과보철학교실

Effect of neck design on peri-implant tissue responses in external connection type implant : a prospective pilot clinical study

Eun-Bin Bae¹, So-Hyoun Lee², Young-Chan Jeon³, Eun-Sook Kang⁴, Sang-Rye Park⁵, Jin-Ju Lee⁶, Jung-Bo Huh⁷

¹Department of Prosthodontics, School of Dentistry, Pusan National University
²Department of Prosthodontics, School of Dentistry, Pusan National University
³Department of Prosthodontics, School of Dentistry, Pusan National University
⁴Department of Prosthodontics, In-Je University Haeundae Paik Hospital
⁵Department of Dental Hygiene, Kyungnam College of Information & Technology
⁶Department of Prosthodontics, School of Dentistry, Pusan National University
⁷Department of Prosthodontics, School of Dentistry, Pusan National University

Abstract

This clinical study was conducted to evaluate the clinical effects of a concave neck of external connection type implant fixture designed for platform switching on the peri-implant tissue responses. Two types of implants with different neck designs were implanted in 20 patients. For the experimental group, the bioseal(BS) implant fixtures with 's' shaped concave profile on the neck were used, and non-bioseal(NBS) implant fixtures with a straight profile on the neck were used as control(Total of 40 implants, NBS: n = 19, BS: n=21). During the one-year period after implant placement, implant survival rate, marginal bone resorption, bleeding, plaque, and complications were evaluated. The survival rate of NBS and BS group was 94.74% and 90.48%, respectively. There was no significant difference on marginal bone resorption, bleeding and plaque between the two groups (P>.05). Within the limits of the present study, implants with a concave neck design showed similar clinical results to implants with a straight neck design on the peri-implant tissue responses. Longitudinal clinical studies are necessary to confirm more effective clinical results.

Key Words: implant neck design;platform switching;biological width;marginal bone resorption;peri-implant tissue;