engleski

Platform switch - to be or not to be?

Objectives of the investigation: The so-called platform switch is often claimed to result in an improved health of the soft tissue and may thus improve the clinical outcome. Still the scientific evidence of such statements is sparse. The aim of this study was to evaluate the difference in histological findings between a platform switching implant-to-abutment interface using a tight seal and a flat-to-flat interface. Experimental methods used: 26 consecutive patients received 43 study implants (Ospol AB, Malmö, Sweden, implant diameter of 3.9 mm, implant length of 10, 12 and 15 mm, respectively) supporting fixed partial dentures or single crowns. The majority (36 implants, 83.7%) were single tooth replacements in lateral parts of both maxilla (41.2%) and mandible (58.8%). A biopsy of soft tissue (2×2 mm) was acquired 3 months after implant placement, at the time of crown/fixed partial denture fixation. The ethical committee in Zagreb approved this study. All patients were recalled every month during the osseointegration process. Additionally, radiographic assessment of the marginal bone level was performed 3 months postoperatively. Essential results and conclusions: Due to the fact that the study has just been initiated in January, we cannot present any results and report on any conclusions yet. First histological results will be ready in June, but since we consider this research of great interest, we are willing to present preliminary results in late August at the latest.

Platform switch; Dental implants; Biopsy

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