Related Experiment Video
Updated: May 27, 2026
09:50
Impact Assessment of Repeated Exposure of Organotypic 3D Bronchial and Nasal Tissue Culture Models to Whole Cigarette Smoke
Published on: February 12, 2015
Smoking effects on root coverage outcomes between 3 and 12 months: A prospective cohort study.
Hande Has-Elci1,2,3, Duygu Taş4, Zeliha Güney5
1Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey.
Journal of Periodontology
|May 26, 2026
Summary
Smoking negatively impacts gum graft surgery outcomes, with smokers showing less root coverage a year later. Dentists should consider smoking status for realistic patient expectations.
Area of Science:
- Periodontology
- Regenerative Dentistry
- Oral Health Research
Background:
- Smoking is a known risk factor for periodontal disease.
- Evaluating smoking's impact on root coverage procedures is crucial for treatment planning.
Purpose of the Study:
- To assess the long-term effect of smoking on root coverage outcomes using coronally advanced flap with connective tissue graft (CAF+CTG).
Main Methods:
- Prospective cohort study with 27 participants (smokers and non-smokers).
- Biochemical verification of smoking status (salivary cotinine).
- Clinical parameters assessed at baseline, 3, and 12 months post-surgery.
Main Results:
- Smokers experienced increased recession depth and decreased root coverage percentage at 12 months compared to 3 months.
- Significantly higher root coverage was achieved in non-smokers (87.5%) versus smokers (66.6%) at 12 months (p=0.024).
- Both groups showed increased keratinized tissue width at 12 months, but this did not negate the poorer root coverage in smokers.
Conclusions:
- The detrimental effect of smoking on CAF+CTG outcomes becomes statistically significant at 12 months.
- Smoking status must be considered in treatment planning and patient expectation management for root coverage procedures.
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