Early loading of 6‐mm‐short implants with a moderately rough surface supporting single crowns – a prospective 5‐year cohort study. Issue 4 (15th April 2014)

• Record Type: Journal Article
• Authors: Rossi, Fabio; Lang, Niklaus P.; Ricci, Emanuele; Ferraioli, Lorenzo; Marchetti, Claudio; Botticelli, Daniele
• Is Part Of: Clinical oral implants research. Volume 26:Issue 4(2015:Apr.)
• Page Start: 471
• Page End: 477
• Publication Date: 2014-04-15
• Subjects: Dental implants -- Research -- Periodicals; 617.69
• DOI: 10.1111/clr.12409
• Languages: English
• ISSNs: 0905-7161

Abstract

<abstract abstract-type="main" id="clr12409-abs-0001"> <title>Abstract</title> <sec id="clr12409-sec-0001" sec-type="section"> <title>Aim</title> <p>To evaluate prospectively the clinical and radiographic outcomes after 5 years of early loading of 6‐mm implants with a moderately rough (SLActive<sup>®</sup>) surface supporting single crowns in the posterior regions.</p> </sec> <sec id="clr12409-sec-0002" sec-type="section"> <title>Material and methods</title> <p>Thirty‐five consecutive patients received 40 SLActive<sup>®</sup> (Straumann) 6‐mm implants with a diameter of 4.1 mm (<italic>n</italic> = 19) or 4.8 mm (<italic>n</italic> = 21). Insertion torque and resonance frequency analysis (RFA) were measured at implant installation. RFA was also measured at abutment connection. SynOcta abutments were tightened with 35 Ncm after 6 weeks of healing, and single porcelain fuse to metal crowns was cemented within 1 week. Implant survival rate and marginal bone loss were evaluated at various time intervals until 5 years after loading. The clinical crown/implant ratio was calculated as well.</p> </sec> <sec id="clr12409-sec-0003" sec-type="section"> <title>Results</title> <p>Two of 40 implants were lost before loading (incorporation rate 95%), and no further implant loss or technical complications were encountered during the 5‐year follow‐up period. A mean marginal bone loss of 0.7 ± 0.6 mm was found after 5 years of function. The clinical crown/implant ratio increased with time from 1.6 at the delivery of the prosthesis to 2 after 5 years of loading.</p> </sec> <sec id="clr12409-sec-0004" sec-type="section"> <title>Conclusion</title> <p>Six millimeter implants with a SLActive<sup>®</sup> moderately rough surface supporting single crowns in the posterior region and loaded after 6–7 weeks maintained full function for at least 5 year with low marginal bone resorption.</p> </sec> </abstract>