Journal article
Submerged and transmucosal healing yield the same clinical outcomes with two-piece implants in the anterior maxilla and mandible: Interim 1-year results of a randomized, controlled clinical trial
CHF Hämmerle, RE Jung, M Sanz, S Chen, WC Martin, J Jackowski, CJ Ivanoff, L Cordaro, J Ganeles, D Weingart, J Wiltfang, M Gahlert
Clinical Oral Implants Research | WILEY-BLACKWELL | Published : 2012
Abstract
Objectives: To test whether or not transmucosal healing at two-piece implants is as successful as submerged placement regarding crestal bone levels and patient satisfaction. Material and methods: Adults requiring implants in the anterior maxilla or mandible in regions 21-25, 11-15, 31-35 or 41-45 (WHO) were recruited for this randomized, controlled multi-center clinical trial of a 5-year duration. Randomization was performed at implantation allowing for either submerged or transmucosal healing. Final reconstructions were seated 6 months after implantation. Radiographic interproximal crestal bone levels and peri-implant soft tissue parameters were measured at implant placement (IP) (baseline)..
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Funding Acknowledgements
The study was sponsored by Institut Straumann AG (Basel, Switzerland). The investigators acknowledge Colin McKinnon, Sandro de Gruttola, and Frank Ottinger (Institut Straumann AG) for assistance in analyzing the data and preparing the manuscript, and Lyndsey Kostadinov (Archimed Medical Communication AG, Zofingen, Switzerland) for providing writing assistance.