Kılıç, Kerem Erciyes Üniversitesi - Diş Hekimliği Fakültesi - Protetik Diş Tedavisi Anabilim Dalı, Türkiye , Kandemir, Banu Çiçek , Kılınç, Halil İbrahim Erciyes Üniversitesi - Diş Hekimliği Fakültesi - Protetik Diş Tedavisi Anabilim Dalı, Türkiye , Kesim, Bülent Erciyes Üniversitesi - Diş Hekimliği Fakültesi - Protetik Diş Tedavisi Anabilim Dalı, Türkiye

Evaluation of marginal bone resorption in implant supported crown restorations

37688

Objectives: The aim of this study is, to investigate the effects of crown length-implant length ratios, implant diameters implant types and follow-up periods of patients on the marginal bone loss in the implant-supported restorations. Materials and Methods: The lengths of dental implants were measured on the orthopantographs that were taken after implantation and after restoration at the follow-up of 61 implant-supported restoration restorated in Erciyes University Faculty of Dentistry. The magnification ratio of radiographs was calculated with the measured lengths of implants and the real lengths of implants. Then, averages of mesial and distal marginal bone levels were measured with reference to the implant neck. The differences between the marginal bone levels (magnification ratios were taken into account) that were measured from first and second orthopantographs were noted. Finally, the effects of crown length-implant length ratio, implant diameter, implant type and follow-up periods on the marginal bone loss were evaluated. Results: The effects of diameter of implant, type of implant and follow-up period of implant-supported restorations on the marginal bone loss were not statistically significant (p 0.05). The implants that have crown length-implant length ratio above 1 showed more marginal bone loss than the implants that have crown length-implant length ratio below 0.5. And this difference was statistically significant (p=0.006). Marginal bone loss values of all subgroups were within clinically acceptable limits. Conclusion: As a result of this study, ratio of crown length-implant length, implant diameter, implant type and follow-up periods of implant supported restoration cause bone loss within acceptable limits.

188

Marginal bone resorption , implant length , implant diameter , implant type

Cumhuriyet Dental Journal

196