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Clinical Trial Summary

Periodontal diseases are infections cause by dental plaque (Socransky, 1970). Risk factors are present which modify the course of disease progression. One of these risk factors is tobacco smoking, which was first evaluated by Pindborg in 1947 and later by Grossi et al. in 1995. They found that tobacco smoking was strongly associated with attachment loss, bone loss, and lastly, tooth loss. Tooth loss in one of the most visible results of periodontal disease, which negatively affects physiological and psychological patient's life. The effects of cigarette smoking on periodontal status are independent of the plaque index and oral hygiene of the patient, due to the direct influence of tobacco on periodontal tissues. Several studies have demonstrated the effectiveness of periodontal therapy in reducing the rate of tooth loss as well as the importance of patient compliance with periodontal maintenance therapy and adequate oral hygiene practice in achieving this reduction. Compliance is the main problem faced in periodontal maintenance therapy. Low rates of compliance and patient adherence to a maintenance program was reported in the literature. Periodontal maintenance therapy can be considered a critical factor for success in controlling periodontitis and in the long-term maintenance of teeth. In addition, neglecting a regular periodontal maintenance therapy program has been associated with increased risk of reinfection and progression of periodontitis, as well as increased tooth loss. The establishment of a criteria for time interval between different supportive periodontal maintenance visits, is still controversial. Smokers are associated with low level of compliance to prevent being constantly reminded of quitting smoking as well as the health complications associated with the habit. There is a void in the literature addressing the direct influence of compliance and adherence in periodontal maintenance therapy and its contribution to arrest periodontitis progression, minimizing tooth loss, specifically in tobacco smoking patients, whether they are regular or irregular compliant with a long term follow-up up to 40 years. On the other hand, there is moderate scientific evidence that the independent effect of smoking is associated with the occurrence of tooth loss in individuals undergoing periodontal maintenance therapy. Lastly, only very few studies reported the specific outcome of periodontal maintenance therapy on tooth loss in regular and irregular compliant smokers compared to regular and irregular compliant non-smokers. The focused question in this study is "Does periodontal maintenance therapy affect annual tooth loss rates differently in regular and irregular compliant smokers and non-smokers?".


Clinical Trial Description

Moderate scientific evidence that the independent effect of smoking is associated with the occurrence of tooth loss in individuals undergoing periodontal maintenance therapy. Only very few studies specifically reported the outcome of tooth loss and periodontal maintenance program in regular and irregular compliant smokers compared to regular and irregular compliant non-smokers. The researcher will analyze the data provided by a specialized dental clinic in the field of periodontology and will divide the subjects into four groups: Group ICS (irregular compliant smoker), Group RCS (regular compliant smoker), Group ICN (irregular compliant non-smoker), and lastly, Group RCN (regular compliant non-smoker). The subjects present in the data will be randomly selected and divided into the appropriate groups with the aid of a permutation table. The researcher will not call the patient and perform a clinical examination but rather analyze the data retrospectively. Statistical data will be compared according to annual tooth loss rates and OR of tooth loss will be calculated for each group. After statistical analysis, the researcher will formulate proper concluding remarks regarding the importance of periodontal maintenance therapy on tooth loss rates in regular and irregular compliant smokers and non-smokers. Primary objective: Determine whether periodontal maintenance therapy decreases tooth loss in regular and irregular compliant smokers compared to regular and irregular compliant non-smokers after 40 years of follow-up. Secondary objective: Shed light on the importance of periodontal maintenance therapy, in its ability to reduce tooth loss, in smokers and non-smokers after 40 years of follow-up. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04938089
Study type Observational
Source Saint-Joseph University
Contact
Status Enrolling by invitation
Phase
Start date May 2022
Completion date July 2022

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