Primary Stability of Self-Drilling and Self-Tapping Mini-Implant in Tibia of Diabetes-Induced Rabbits

Author:

Park Jea-Beom1,Kim Eun-Young2,Paek Janghyun3ORCID,Kook Yoon-Ah1,Jeong Do-Min4ORCID,Cho Il-Sik5,Nelson Gerald6

Affiliation:

1. Department of Orthodontics, The Catholic University of Korea, Seoul, Republic of Korea

2. Department of Dentistry, National Medical Center of Korea, 245 Euljiro, Junggu, Seoul 100-799, Republic of Korea

3. Department of Pediatrics, School of Medicine, Chosun University, 30-1 Hakdong, Donggu, Gwangju 501-717, Republic of Korea

4. Department of Prosthodontics, School of Dentistry, Kyung Hee University, Hoegidong, Dongdaemungu, Seoul 130-701, Republic of Korea

5. Department of Dentistry, Korea University, 80 Gurodong, Gurogu, Seoul 152-703, Republic of Korea

6. Division of Orthodontics, School of Dentistry, University of California San Francisco, 707 Parnasus Avenue, San Francisco, CA 94143, USA

Abstract

Objective. This study aimed to evaluate effects of type 1 diabetes mellitus and mini-implant placement method on the primary stability of mini-implants by comparing mechanical stability and microstructural/histological differences.Methods. After 4 weeks of diabetic induction, 48 mini-implants (24 self-tapping and 24 self-drilling implants) were placed on the tibia of 6 diabetic and 6 normal rabbits. After 4 weeks, the rabbits were sacrificed. Insertion torque, removal torque, insertion energy, and removal energy were measured with a surgical engine on 8 rabbits. Remaining 4 rabbits were analyzed by microcomputed tomography (micro-CT) and bone histomorphometry.Results. Total insertion energy was higher in self-drilling groups than self-tapping groups in both control and diabetic groups. Diabetic groups had more trabecular separation in bone marrow than the control groups in both SD and ST groups. Micro-CT analysis showed deterioration of bone quality in tibia especially in bone marrow of diabetic rabbits. However, there was no statistically significant correlation between self-drilling and self-tapping group for the remaining measurements in both control and diabetic groups.Conclusions. Type 1 diabetes mellitus and placement method of mini-implant did not affect primary stability of mini-implants.

Publisher

Hindawi Limited

Subject

General Dentistry

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