Effects of anodized oxidation or turned implants on bone healing after using conventional drilling or trabecular compaction technique: histomorphometric analysis and RFA.
OBJECTIVE
The aim of this study was to compare the bone healing characteristics adjacent to anodic oxidation and turned surfaces after implant installation using the trabecular compaction technique or the conventional drilling technique in the soft bone area.


METHODS
A total of 72 implants (36 anodic oxidation surface and 36 turned surface implants) were inserted into the distal end of the femur head of 12 dogs by two different surgical techniques. There were four experimental groups: (1) DT group; drilling+turned, (2) DO group; drilling+oxidation, (3) CT group; compaction+turned, and (4) CO group; compaction+oxidation. The resonance frequency was measured and six specimens/treatment group were obtained at 0, 3 and 8 weeks, postoperatively. Undecalcified ground sections were prepared for histologic and histomorphometric examinations.


RESULTS
At week 0, the trabecular compaction groups showed a higher bone to implant contact ratio (BIC) than the conventional drilling groups, regardless of surface types. The CT group showed a higher implant stability quotient (ISQ) than the DT group. At week 3, the oxidation groups showed a higher BIC than the turned groups regardless of the surgical technique used. The CO group showed higher ISQ than the CT group. At week 8, there was no statistically significant difference in BIC and ISQ between the groups.


CONCLUSIONS
Surgical technique and implant surface state have an effect on the initial bone response to two-stage implants inserted into trabecular bone regions.
Kim
Shin Koo
SK
Dental Implantology, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul, Korea.
Lee
Han Na
HN
Choi
Yong Chang
YC
Heo
Seong-Joo
SJ
Lee
Cheol Won
CW
Choie
Mok Kyun
MK
D000539:Alveolar Process / Q000033:anatomy & histology*; D000818:Animals; D016723:Bone Remodeling / Q000502:physiology; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D004285:Dogs; D005269:Femur / Q000601:surgery; D010084:Oxidation-Reduction; D013499:Surface Properties; D014945:Wound Healing / Q000502:physiology*
D015921:Dental Implants