Abstract OBJECTIVE. This is a case control study that has been carried out to assess the efficacy of platform switching restoration versus traditional abutment connection in single implants over a period of 12 months. MATERIALS AND METHODS. Radiographic bone levels around implants were compared between the platform switching group and the group with normal diameter abutments using periapical radiography after a year. RESULTS. The results suggest that average bone loss after a year in the platform switching group is 0.65 mm (SD 0.5), whereas in the control group the average value of bone loss is 1.875 mm (SD 0.5). CONCLUSIONS. Bone crest remodelling is one of the long term success criteria of a dental implant. Some studies show that a year after prosthetic restoration, bone crest levels are 1.5-2 mm under the implant abutment junction. Recently some researchers suggested that smaller diameter abutments allow for a reduction of bone resorption in submerged implants. Although the study was limited, the results showed that platform switching technique causes a smaller bone loss than traditional abutment.
|Autori:||Ricci M; Tonelli P; Barone A; Covani U|
|Titolo:||Bone maintenance around dental implants: The roal of platform switching [Ruolo del platform switching nel mantenimento dell'osso perimplantare]|
|Anno del prodotto:||2009|
|Appare nelle tipologie:||1.1 Articolo in rivista|