Abstract
membrane) with a mineralized allograft in combination with a roughened titanium tenting screw placed 3-4 mm below the implant platform, and coronal advancement flap. The hard and soft tissues around the implant were evaluated at 6months and approximately 1 year after treatment. Preand post-operative clinical, cone beam computed tomography (CBCT), and restorative cast measurements were made for all patients. Methods of Data Analysis:Descriptive analysis, such as mean and standard deviation (SD) Results: The mean (SD) of pre-operative crestal (2 mm from crest) and mid-implant buccal bone thickness increased from 0.18 (0.45) mm and 0.64 (0.68) mm to 2.02 (0.88) mm and 2.71 (0.34) mm, respectively, approximately one year after treatment. The mean pre-operative soft tissue thickness [measured at implant platform level on study casts or by using CT scan if casts were not available (2)] increased from 1.53 (0.43) mm to 2.81 (0.45) mm. Further, the average width of the labial keratinized tissue improved, from 2.53 (1.26) mm to 3.82 (1.05) mm, and the mean gingival margin height (measured on soft tissue casts with a digital caliper) increased from 1.64 (0.50) mm to 2.87 (0.28) mm. The mean pre-operative tooth length reduced from 10.89 (1.26) mm to 9.64 (0.84) mm (measured using casts). Conclusions: The use of a mineralized allograft with roughened tenting screws and collagen membrane coverage was effective in improving peri-implant soft tissue around ailing implants with gingival recession.
Published Version
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