Affiliation:
1. Department of Periodontology and Oral Implantology Ghent University Ghent Belgium
Abstract
AbstractAims(1) To assess the effectiveness of the Sausage Technique™ when applied for lateral bone augmentation by multiple experienced clinicians; (2) To identify risk indicators for a poor outcome and to assess the need for adjunctive surgery.Materials and MethodsAll patients who had been treated with the Sausage Technique™ for lateral bone augmentation by three experienced surgeons between January 2019 and December 2021 were included in a retrospective case series. The Sausage Technique™ technique includes the use of autogenous bone chips and deproteinized bovine bone mineral (1:1 ratio), covered with a stretched and pinned collagen membrane. The increase in alveolar width between the pre‐operative situation and 9 months was assessed at different levels on superimposed cone‐beam CT scans.ResultsTwenty‐five augmentations performed in 25 patients (17 males, 8 females, mean age 51 years) were available for evaluation. Mean alveolar width increased from 4.35 to 7.43 mm at 3 mm below the crest. The mean increase of 3.08 mm (95% CI 2.10–4.06; p < 0.001) was significant. The outcome of non‐containing single implant sites was significantly worse than the outcome of other sites (MD 2.67 mm; p = 0.008). The need for regrafting was 4% and the need for soft tissue augmentation was 48%. Twenty percent of the patients needed soft tissue augmentation due to a lack of keratinized mucosa width, and 32% due to a lack of buccal convexity. The former was mainly needed at multiple implant sites, whereas the latter was mainly required at single implant sites. All implant survived and remained healthy until the final follow‐up.ConclusionThe Sausage Technique™ is an effective bone augmentation technique. Non‐containing single implant sites were associated with a poor outcome and adjunctive soft tissue augmentation was needed in about half of the patients.
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