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Among former smokers, a longer time since quitting smoking was associated with a lower likelihood of periodontitis. Consequently, dental practitioners have a public health mandate to help their patients quit smoking. Future research should determine the best strategies for facilitating smoking cessation in dental patients.

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Peri-implant soft tissue inflammatory parameters and crestal bone loss are worse in CS and WS smokers compared with NS. There is no difference in these parameters among CS and WS.

The aim of this review was to assess the contribution of herpesviruses in the subgingival oral biofilm in the progression of periodontal and peri-implant diseases in systemically healthy individuals. The literature review was customized to summarize the pertinent information for the following reasons: (1) A systematic review regarding the role of herpesviruses in the etiopathogenesis of periodontal disease has recently been published; and (2) a limited number of studies have assessed the association of herpesviruses with peri-implant diseases. To date, five observational studies have assessed the presence of herpesviruses in the subgingival oral biofilm of individuals with peri-implant diseases. In these studies, dental implants were in place for up to approximately 8 years. In two studies, human cytomegalovirus (HCMV) was more often isolated from the peri-implant sulci of sites with than without peri-implantitis. In one study, a low prevalence of HCMV compared with Epstein-Barr virus (EBV) was associated with the progression of peri-implantitis. In previous studies, the presence of EBV in the subgingival oral biofilm was associated with the onset of peri-implantitis and peri-implant mucositis, respectively. Major limitations of the studies assessed were the absence of blinding and lack of power analysis for sample size estimation. In conclusion, the presence of herpesviruses in the periodontal and peri-implant subgingival oral biofilm is an indicator of periodontal and peri-implant diseases in systemically healthy individuals; however, further studies with a statistically justified sample-size are needed to understand and refine this association.

The aim was to compare the peri-implantclinical and radiographic inflammatory parameters and whole salivary cotinine levels among cigarette smokers (CS), waterpipe smokers (WS) and neversmokers (NS). Thirty-four CS (Group 1), 33 WS (Group 2), and 31 NS (Group 3) were included. Peri-implant plaque index (PI), bleeding-on-probing (BOP), and probing depth (PD) were measured, and crestal bone loss (CBL) was assessed on standardized digital radiographs. Unstimulated whole saliva samples were collected and whole salivary cotinine levels were measured. Peri-implant PI and PD were higher in Groups 1 (P < 0.05) and 2 (P < 0.05) than in Group 3. Peri-implant BOP was significantly higher in Group 3 than in Groups 1 (P < 0.01) and 2 (P < 0.01). Peri-implant MBL was significantly higher in Groups 1 (P < 0.05) and 2 (P < 0.05) than in Group 3. There were significant differences in PI, BOP, PD, and CBL between Groups 1 and 2. There was no significant difference in the whole salivary cotinine levels in Groups 1 and 2. Peri-implant sites with plaque accumulation, PD, CBL, and whole salivary cotinine levels were higher in CS and WS than in NS, but did not differ between CS and WS.