Details

Autor(en) / Beteiligte

• Cassetta, M
• Driver, A
• Brandetti, G
• Calasso, S

Titel

Peri-implant bone loss around platform-switched Morse taper connection implants: a prospective 60-month follow-up study

Ist Teil von

• International journal of oral and maxillofacial surgery, 2016-12, Vol.45 (12), p.1577-1585

Ort / Verlag

Denmark: Elsevier Ltd

Erscheinungsjahr

2016

Quelle

MEDLINE

Beschreibungen/Notizen

• Abstract The aim of this study was to measure the crestal bone level changes at 60 months of follow-up and to evaluate the influence of biologically relevant, anatomical, and implant-related variables. A prospective study design was used. STROBE guidelines were followed. A total of 576 implants were inserted in 270 patients needing an implant-supported, partial, fixed dental prosthesis or a single crown. Standardized peri-apical radiographs were obtained at 2 months (time of implant–abutment connection and prosthetic loading) and 60 months of follow-up. Descriptive statistics were used and inter- and intra-examiner reliability determined. A mixed model was used to evaluate the predictor variables. The correlation among multiple implants inserted in a single patient was considered. Significance was assessed using the type 3 test. Sensitivity analyses, least-squares means analyses, t -tests, and χ2 tests were also conducted. The statistical analysis was performed at the implant level; P < 0.05 indicated statistical significance. At the 60-month follow-up, the mean marginal bone remodelling was −0.59 ± 1.34 mm (range −5.70 to 3.65 mm). Marginal bone loss was significantly influenced by implant depth, implant location, and the interactions implant depth × jaw, implant location × timing of implant placement, and jaw × implant diameter. At the 60-month follow-up, a low mean marginal bone loss was found, which was significantly higher with subcrestal implants and anterior implants.