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OBJECTIVES This randomized-controlled trial aimed to evaluate marginal bone level alterations at implants restored according to the platform-switching concept, using different implant/abutment mismatching. MATERIAL AND METHODS Eighty implants were divided according to the platform diameter in four groups: 3.8 mm (control), 4.3 mm (test group(1)), 4.8 mm(More)
PURPOSE This study sought to determine whether there was a correlation between bone resorption and individual bone patterns in patients treated with implants restored conventionally or using the platform-switching concept. MATERIALS AND METHODS Ten patients (24 implants) were randomly assigned to receive implants with different platform diameters (3.8,(More)
PURPOSE The aim of this study was to evaluate the short-term bone level response around immediately placed and provisionally restored implants using a platform switching concept. MATERIALS AND METHODS Twenty-two implants with a platform diameter of 5.5 mm were immediately placed in healthy maxillary sites in 22 patients. Resultant circumimplant spaces(More)
PURPOSE The aim of this preliminary study was to evaluate histologically a nanocrystalline hydroxyapatite silica gel in maxillary sinus floor grafting in severely resorbed maxillae. MATERIALS AND METHODS A total of 16 consecutive patients scheduled for sinus lift were recruited during this study. Patients were randomly divided in two groups, eight(More)
BACKGROUND Switching platform restorations seems to reduce the peri-implant bone resorption and to preserve the peri-implant soft tissues. AIM The aim of the present human study was to compare histologically the peri-implant soft tissue in switching and traditional platform implants 4 years after restoration. MATERIALS AND METHODS Forty-eight months(More)
The aim of this case report was to evaluate the ability of Bio-Oss used together with an expanded polytetrafluoroethylene, titanium-reinforced membrane to restore a vertical bone defect. Bio-Oss served as a filler material. After the membrane was removed, screw-type implants were placed. During this phase, cylindric bone samples were retrieved from the(More)
PURPOSE This study evaluated the clinical performance of cemented customized zirconia abutments. Additionally, the marginal fit between the selected implant components was measured and the clinical gingival response was monitored. MATERIALS AND METHODS Twenty-five patients were consecutively selected for a prospective study of 30 implant-supported(More)
OBJECTIVE To evaluate the biomechanical scenario of platform switching geometric implant-abutment configuration relative to standard configurations by means of finite element analysis. STUDY DESIGN A 3D Finite Element Analysis (FEA) was performed on 3 different implant-abutment configurations: a 3.8 mm implant with a matching diameter abutment (Standard(More)
OBJECTIVE The aim of this study was to analyze clinical and microbiological characters in subjects and implants affected and not affected by peri-implantitis. Additionally, same features were analyzed also intra-individually, comparing healthy and diseased implants within the same subject. MATERIALS AND METHODS A total of 534 patients who received at(More)
BACKGROUND The discrepancy between some scientific views and the daily clinical experience with dental implants has made the topic of "periimplantitis" highly controversial, especially the discussion whether "periimplantitis" should even be considered a "disease" or whether marginal bone loss instead would represent a complication of having a foreign body(More)