In:
Journal of Periodontology, Wiley, Vol. 87, No. 11 ( 2016-11), p. 1360-1368
Abstract:
Background: Implants with deep thread depth have been developed for the purpose of increasing total implant surface area. However, effects of implant thread depth remain controversial. The aim of this study is to examine effects of thread depth on peri‐implant tissues in terms of bone–implant contact (BIC), bone–implant volume (BIV), and hard and soft tissue dimensions using comprehensive analyses, including microcomputed tomography (micro‐CT). Methods: Five beagle dogs received experimental intramandibular implants 3 months after removal of their premolars and first molars (P 2 , P 3 , P 4 , and M 1 ). Two different types of implants were installed in each animal: deep threaded (DT) and shallow threaded (ST). Resonance frequency testing was performed on the day of implantation as well as 4 and 8 weeks after implantation. Intraoral radiography, micro‐CT, and histomorphometry were used to evaluate peri‐implant tissues 4 and 8 weeks after implantation. Results: There were no significant differences in resonance frequency test results between the two groups. Although radiographic analysis showed no group differences, micro‐CT ( P = 0.01) and histomorphometry ( P = 0.003) revealed the DT group had significantly lower BIC values than the ST group at 4 weeks. However, by 8 weeks, BIC values of the two groups did not differ significantly. No significant differences in BIV or soft tissue height were observed between the two groups at either time point. Conclusion: DT implants showed no benefits over ST implants when inserted in dog mandibles.
Type of Medium:
Online Resource
ISSN:
0022-3492
,
1943-3670
DOI:
10.1902/jop.2016.150738
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
2040047-0
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