Peri-implant soft tissue status and crestal bone loss around immediately-loaded narrow-diameter implants placed in cigarette-smokers: 6-year follow-up results

Clinical Implant Dentistry and Related Research
Osama AlghamdiTariq Abduljabbar

Abstract

It is hypothesized that in the long-term, soft tissue inflammation (reflected by increased scores of peri-implant probing-depth [PD]) and crestal bone loss (CBL) is higher in cigarette-smoker than nonsmokers with narrow diameter implants (NDIs). The aim of the present 6-years' follow-up clinical observational study was to compare the peri-implant soft tissue inflammatory parameters (plaque index [PI], gingival index [GI], and PD) and CBL around immediately-loaded NDIs placed in cigarette-smokers and nonsmokers. In all groups, peri-implant GI, PI and PD were measured on six sites (distolingual/palatal, mesiolingual/palatal mesiobuccal, distobuccal, midlingual/palatal, and midbuccal) per implant. The CBL was gauged on digital bitewing x-rays, which were standardized using the long cone paralleling technique. CBL was demarcated as the vertical distance from 2 mm below the implant-abutment connection to the most crestally-positioned alveolar bone. All study-participants were male. Twenty-six cigarette smokers and twenty-five nonsmokers were included. The mean age of cigarette-smokers and nonsmokers was 45.5 ± 10.3 and 47.4 ± 9.4 years, respectively. Cigarette-smokers had a smoking history of 10.6 ± 0.4 pack years. Family history of...Continue Reading

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