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Healing response of gingival recession defects following guided tissue regeneration procedures in smokers and non‐smokers
Author(s) -
Trombelli Leonardo,
Scabbia Alessandro
Publication year - 1997
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1997.tb00224.x
Subject(s) - medicine , gingival recession , bleeding on probing , dentistry , retrospective cohort study , statistical significance , buccal administration , surgery , periodontitis
Abstract This retrospective study evaluated healing response in gingival recession defects following guided tissue regeneration (GTR) in smokers. 22 systemically healthy patients who had been treated for deep (4 mm), buccal. Miller's class I or II gingival recession defects with ePTFE membranes were included. Patients were regarded as smokers if they smoked more than 10 cigarettes/day at the time of surgical procedure. Occasional and former smokers were excluded. 9 patients (6 male, mean age 29 years) were smokers, while 13 patients (4 male, mean age 35 years) were non smokers. Clinical parameters, recorded pre surgery and at 6 months post surgery. included defect‐specific plaque (DPI) and bleeding on probing (BoP) scores, recession depth (RD). probing depth (PD). clinical attachment level (CAL). and keratinized tissue width (KG). Extent of membrane exposure (ME) and newly formed tissue (NFT) gain were assessed at membrane removal. Statistical analysis revealed no significant differences between smokers and non‐smokers in demographic and pre surgery defect characteristics. DPI and BoP scores were similar pre surgery and remained almost unchanged thorough out the observation interval in both groups. ME was significantly greater in smokers (2.6±1.4 mm) than in non smokers (1.3±0.6 mm). NFT gain was 2.8±1.0 mm in smokers and 3.6±1.4 mm in non‐smokers, the difference being not statistically significant. Smokers showed significantly less RD reduction and root coverage (2.5±1.2 mm and 57%, respectively) compared to non‐smokers (3.6±1.1 mm and 78%, respectively). In conclusion, the results indicate that treatment outcome following GTR in gingival recession defects is impaired in cigarette smokers.