Membranes over the lateral window in sinus augmentation procedures: a two‐arm and split‐mouth randomized clinical trials. (17th September 2013)

• Record Type: Journal Article
• Authors: Torres García‐Denche, Jesús; Wu, Xixi; Martinez, Pedro‐Pablo; Eimar, Hazem; Ikbal, Daher Jalil‐Abumalham; Hernández, Gonzalo; López‐Cabarcos, Enrique; Fernandez‐Tresguerres, Isabel; Tamimi, Faleh
• Is Part Of: Journal of clinical periodontology. Volume 40:Number 11(2013:Nov.)
• Page Start: 1043
• Page End: 1051
• Publication Date: 2013-09-17
• Subjects: Periodontics -- Periodicals; 617.6
• DOI: 10.1111/jcpe.12153
• Languages: English
• ISSNs: 0303-6979

Abstract

<abstract abstract-type="main" id="jcpe12153-abs-0001"> <title>Abstract</title> <sec id="jcpe12153-sec-0001" sec-type="section"> <title>Objective</title> <p>This study evaluates whether or not, among other factors, membrane‐coverage of antrostomy defects improves implant survival in sinus augmentation procedures.</p> </sec> <sec id="jcpe12153-sec-0002" sec-type="section"> <title>Materials and Methods</title> <p>We performed a two‐arm and split‐mouth randomized controlled clinical trial on 104 and 5 patients respectively. In the two‐arm study, antrostomy defects were membrane‐covered in 66 procedures and uncovered in 69, before placing a total of 265 implants that were followed up for 1 year. In the split‐mouth study, following bilateral sinus augmentation, antrostomy defects were membrane‐covered on one side and left uncovered on the contra‐lateral. Bone biopsies from each sinus were histologically analysed 6 months later.</p> </sec> <sec id="jcpe12153-sec-0003" sec-type="section"> <title>Results</title> <p>In the two‐arm study, implant survival rates were similar (<italic>p</italic> = 0.08) in the membrane‐covered (96.1%) and uncovered (94.2%) groups. In the split‐mouth study, bone augmentation was similar in both groups (<italic>p</italic> = 0.52). Delayed implant placement (<italic>p</italic> = 0.04), thick Schneider's membrane (≥2 mm) (<italic>p</italic> < 0.01), treatment for hypertension (<italic>p</italic> = 0.04) and non‐smoking (<italic>p</italic> = 0.01) seemed to be associated with lower risk of implant failure.</p> </sec> <sec id="jcpe12153-sec-0004" sec-type="section"> <title>Conclusions</title> <p>Implant survival in sinus lifting procedures could be influenced significantly by timing of implant placement, Schneider's membrane thickness, antihypertensive treatment and smoking habits, but not by antrostomy membrane coverage.</p> </sec> </abstract>