ABSTRACT
A total of 20 atrophic maxillary sinuses were augmented with recombinant human platelet-derived growth factor BB (rhPDGF-BB), alloplast, and bovine xenograft using a direct approach. CBCT imaging was performed at baseline, immediately postoperatively, and at 6 and 30 months postoperatively. A histologic evaluation revealed the bone bridging and bone regenerative efficacy of the graft material. Radiographic evaluation determined the ridge height (H) and volume of the graft (V) to be as 3.02 ± 1.35 mm at baseline (H0), 15.18 ± 2.52 mm (H1) and 1,106.10 ± 398.84 mm3 (V1) immediately postoperatively, 14.79 ± 2.30 mm (H2) and 1,086.95 ± 396.86 mm3 (V2) at 6 months, and 1,058 ± 391.83 mm3 (V3) at 30 months, with a significant gain in the residual ridge height at 6 months and no significant loss or gain in sinus volume postoperatively.
Subject(s)
Alveolar Ridge Augmentation , Sinus Floor Augmentation , Humans , Animals , Cattle , Follow-Up Studies , Maxilla/diagnostic imaging , Maxilla/surgery , Alveolar Ridge Augmentation/methods , Becaplermin , Bone Regeneration , Maxillary Sinus/diagnostic imaging , Maxillary Sinus/surgery , Bone Transplantation/methods , Dental Implantation, Endosseous/methods , Sinus Floor Augmentation/methodsABSTRACT
BACKGROUND: To evaluate the presence of titanium particles in the peri-implant mucosa of unloaded single implants. MATERIALS AND METHODS: Forty participants with single unloaded implants were selected. They were divided equally into two groups: Group 1 with mild and Group 2 with moderate-to-severe peri-implant mucositis. Cytologic smears of peri-implant mucosa were obtained using cytobrush during second-stage surgery. RESULTS: Study states that 60% of participants of Group 2 were positive for titanium particles in peri-implant cytology. CONCLUSION: This study concludes that the titanium particles might be the initiators of the inflammation around implant.