Comparison of implant stability after different implant surface treatments in dog bone.
OBJECTIVE
The purpose of this investigation was to evaluate the effects of different implant surface treatments on implant stability in dog mandibles.


METHODS
A total of 30 implants (Dentium Co, Seoul, Korea) were placed in 5 dog mandibles. Bone quality was assessed at each site. Implant stability was evaluated using 2 different methods. An Osstell resonance frequency analyzer (RFA) was used to determine the stability at baseline (day 1), and 3, 6 and 10 weeks after surgery. Animals were euthanized 10 weeks after implant installation. Specimens were obtained and submitted to the laboratory processing. Sections were stained with hematoxylin and eosin for histologic and histomorphometric analyses. All implantation sites in dog mandibles demonstrated bone types II and III.


CONCLUSIONS
All implants showed good primary stability at baseline in terms of insertion torque. The results of this study suggest that surface treatment may have significant effects on biological stability 3 weeks after implant placement. Further studies are needed to confirm these initial observations in poor quality bone.
Kim
Sun-Jong
SJ
Oral and Maxillofacial Surgery, School of Medicine, Ewha Womans University, Seoul, Korea. sjsj7777@ewha.ac.kr
Kim
Myung-Rae
MR
Rim
Jae-Suk
JS
Chung
Sung-Min
SM
Shin
Sang-Wan
SW
D000134:Acid Etching, Dental / Q000379:methods; D000818:Animals; D015519:Bone Density / Q000502:physiology; D045662:Dental Etching / Q000379:methods; D015921:Dental Implants; D017267:Dental Prosthesis Design; D017268:Dental Prosthesis Retention; D004285:Dogs; D055664:Electrochemical Techniques; D007091:Image Processing, Computer-Assisted; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery; D018613:Microscopy, Confocal; D016348:Osseointegration / Q000502:physiology; D010084:Oxidation-Reduction; D013499:Surface Properties; D013997:Time Factors; D019415:Torque; D014732:Vibration
D015921:Dental Implants