Structured Assessment and Treatment Planning
Consensus Statement
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The aim of this paper was to evaluate cigarette smoking and a history of treated periodontitis, both alone and combined, as risk factors for adverse implant outcomes.
Considerable heterogeneity among studies was found, making comparisons of outcomes difficult. The definitions of periodontitis and non-periodontitis patients differed among studies. Where a description of the type of periodontitis was given, the type of periodontal disease was usually described as chronic periodontitis.
While all studies reported that periodontal patients were treated, and the majority of studies reported regular supportive periodontal therapy, the periodontal status was infrequently reported.
A range of definitions for smokers, nonsmokers, and former smokers were used in the studies. Few studies reported and adjusted for confounding factors.
The outcomes addressed in this review were implant survival, implant success (as defined by the authors), longitudinal radiographic bone levels, and occurrence of peri-implantitis.
With respect to a history of treated periodontitis and smoking, the following recommendations can be made:
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