Abstract:
:In this study, we analyzed the influence of prosthetic abutment height on marginal bone loss (MBL) around implants in the posterior maxilla. In this retrospective cohort study, the radiographically determined MBL was related to the height of the abutments of internal conical connection implants at 6 and 18 months post-loading. Data were gathered on age, sex, bone substratum, smoking habit, history of periodontitis, and prosthetic features, among other variables. A linear mixed model was used for statistical analysis. The study included 131 patients receiving 315 implants. MBL rates at 6 and 18 months were mainly affected by the abutment height but were also significantly influenced by the bone substratum, periodontitis, and smoking habit. MBL rates were higher for prosthetic abutment < 2 mm vs. ≥ 2 mm, for periodontal vs. non-periodontal patients, for grafted vs. pristine bone, and for a heavier smoking habit. The abutment height is a key factor in MBL. MBL rates followed a non-linear trend, with a greater MBL rate during the first 6 months post-loading than during the next 12 months.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Galindo-Moreno P,León-Cano A,Ortega-Oller I,Monje A,Suárez F,ÓValle F,Spinato S,Catena Adoi
10.1177/0022034513519800subject
Has Abstractpub_date
2014-07-01 00:00:00pages
80S-85Sissue
7 Suppleissn
0022-0345issn
1544-0591pii
0022034513519800journal_volume
93pub_type
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