IADR Abstract Archives
Effect of Opposing Structure on Marginal Bone Loss Around non-Submerged Dental Implants
Objectives: To evaluate the effects of opposing structure on change in marginal bone level (MBL) around non-submerged dental implants.
Methods: The study included healthy patients with two or more implants. Structures opposite implants were either complete denture (CD), fixed partial denture (FPD), or removable partial denture (RPD). MBLs were measured on digital periapical radiographs at the mesial and distal aspects of each implant. The data were analyzed statistically with GraphPad Prism version 8.0 for Windows, GraphPad Software (San Diego, CA).
Results: Forty-seven implants were inserted in 19 patients and followed up to 12-month. Overall MBLs were 0.80 ± 0.15 mm at baseline (start loading) and 1.01 ± 0.11 mm after 12-month prosthetic loading (P = 0.021). Mean MBLs for FPD were 0.08 ± 0.28 mm at baseline and 0.58 ± 0.25 mm at 12-month (P = 0.015). MBLs between CD and FPD differed significantly at baseline (P = 0.015). MBLs between FPD and RPD were differed significantly at baseline and 12-month, P = 0.004 and P = 0.032, respectively. Changes in mean MBL from baseline to the 12-month were not significant in all opposing structures of the implants. However, bone gain in implants opposite RPD (-0.05 ± 0.16 mm) was observed after 12-month observation.
Conclusions: Bone loss was greater if non-submerged dental implants were opposed by CDs and FPDs. The marginal bone level gain was observed if non-submerged dental implants were opposed by RPD after 12-month prosthetic delivery.
Methods: The study included healthy patients with two or more implants. Structures opposite implants were either complete denture (CD), fixed partial denture (FPD), or removable partial denture (RPD). MBLs were measured on digital periapical radiographs at the mesial and distal aspects of each implant. The data were analyzed statistically with GraphPad Prism version 8.0 for Windows, GraphPad Software (San Diego, CA).
Results: Forty-seven implants were inserted in 19 patients and followed up to 12-month. Overall MBLs were 0.80 ± 0.15 mm at baseline (start loading) and 1.01 ± 0.11 mm after 12-month prosthetic loading (P = 0.021). Mean MBLs for FPD were 0.08 ± 0.28 mm at baseline and 0.58 ± 0.25 mm at 12-month (P = 0.015). MBLs between CD and FPD differed significantly at baseline (P = 0.015). MBLs between FPD and RPD were differed significantly at baseline and 12-month, P = 0.004 and P = 0.032, respectively. Changes in mean MBL from baseline to the 12-month were not significant in all opposing structures of the implants. However, bone gain in implants opposite RPD (-0.05 ± 0.16 mm) was observed after 12-month observation.
Conclusions: Bone loss was greater if non-submerged dental implants were opposed by CDs and FPDs. The marginal bone level gain was observed if non-submerged dental implants were opposed by RPD after 12-month prosthetic delivery.
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