A Retrospective Study on Immediate Placement of Neoss Implants with Early Loading of Full‐Arch Bridges. (3rd December 2013)

• Record Type: Journal Article
• Authors: Andersson, Peter; Degasperi, Werner; Verrocchi, Damiano; Sennerby, Lars
• Is Part Of: Clinical implant dentistry and related research. Volume 17:Number 4(2015:Aug.)
• Page Start: 646
• Page End: 657
• Publication Date: 2013-12-03
• Subjects: Dental implants -- Periodicals; Dental Implantation -- Periodicals; Dental Implants -- Periodicals; 617.693
• DOI: 10.1111/cid.12183
• Languages: English
• ISSNs: 1523-0899

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <sec id="cid12183-sec-0001" sec-type="section"> <title>Background</title> <p>Full‐arch clearances of compromised teeth and placement of implant‐supported prostheses is one solution for the prosthetic rehabilitation of partially dentate patients.</p> </sec> <sec id="cid12183-sec-0002" sec-type="section"> <title>Purpose</title> <p>To retrospectively evaluate treatment outcomes after full clearance, immediate placement, and early loading of full‐arch fixed bridges.</p> </sec> <sec id="cid12183-sec-0003" sec-type="section"> <title>Materials and Methods</title> <p>Fifty‐five patients subjected to full clearance and placement of 284 Neoss implants (Bimodal™ and Proactive™, Neoss Ltd, Harrogate, UK) in 29 edentulous maxillae and 26 mandibles for early loading (1 to 3 days) of a provisional full‐arch bridge were retrospectively evaluated after 1 to 6 years of loading. Osstell™ measurements (Osstell AB, Göteborg, Sweden) were taken at placement and after 3 to 9 months when the provisional bridge was replaced with a permanent one. Marginal bone levels were measured in intraoral radiographs.</p> </sec> <sec id="cid12183-sec-0004" sec-type="section"> <title>Results</title> <p>All patients (100%) wore a fixed bridge at the time of finalizing the study. A total of 18 failures (6.3%) were encountered during the follow‐up, giving an overall cumulative survival rate of 93.7%. All failures occurred in the maxilla (10.6%), and no implants were lost in the mandible. More Bimodal™ (9.0%) than Proactive™ (4.1%) implants failed. Failing implants showed a significantly lower mean primary stability than successful ones (<italic>p</italic> = .015). Failed cases showed a significantly lower average ISQ for all implants (<italic>p</italic> = .015) and a marked decrease to the second registration, while successful cases showed and maintained high ISQs. The average bone loss after 1 year was 0.8 ± 0.5 mm.</p> </sec> <sec id="cid12183-sec-0005" sec-type="section"> <title>Conclusions</title> <p>Full‐arch clearance of severely diseased teeth followed by immediate placement of Neoss implants, early loading with provisional full‐arch bridges, and subsequent permanent bridges is a possible treatment modality for partially dentate patients. Caution with this approach is recommended for the maxilla, as opposed to the mandible.</p> </sec> </abstract>