Efficacy of adjunctive Er,Cr:YSGG laser application to scaling and root planing in periodontal maintenance patients with residual periodontal pockets
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The aim of this study was to evaluate the efficacy of using Er,Cr:YSGG laser in an adjunct to scaling and root planing (SRP + Er,Cr:YSGG) in periodontal maintenance patients with residual periodontal pockets.
Materials and methods
This study is a double-blind randomized controlled clinical trial and a split-mouth design. Fifteen periodontal maintenance patients with two single-rooted teeth with probing depth (PD) ≥ 5 mm in two different quadrants were randomly assigned to scaling and root planing (SRP) as a control group or SRP + Er,Cr:YSGG as test group. Plaque index (PI), bleeding on probing (BOP), PD, relative probing attachment level (RPAL), and relative gingival recession (RGR) were evaluated at baseline, 3 months and 6 months after treatment by one calibrated examiner.
At 6 months after treatment, PDs were statistically significantly reduced in both SRP (0.9 ± 0.6 mm) and SRP + Er,Cr:YSGG (1.1 ± 0.7 mm) compared with pretreatment PD (p < 0.05). Only SRP + Er,Cr:YSGG demonstrated statistically significant probing attachment level (PAL) gained at 6 months after treatment (0.8 ± 0.6 mm; p < 0.05). Gingival recession (GR) statistically significantly increased in SRP + Er,Cr:YSGG 3 months after the treatment (0.5 ± 0.5 mm; p < 0.05). Nevertheless, there were no statistically significant differences between the 2 treatment modalities regarding PD reduction, PAL gain, or GR at 6 months after treatment.
Only SRP + Er,Cr:YSGG demonstrated statistically significant PAL gained at 6 months after treatment (0.8 ± 0.6 mm; p < 0.05); however, there were no statistically significant differences between the 2 treatment modalities regarding PD reduction, PAL gain, or GR at 6 months after treatment in maintenance patients with residual periodontal pockets.
KeywordsEr,Cr:YSGG laser Residual periodontal pockets Scaling and root planing Periodontal maintenance patients
This study was supported by the Faculty of Dentistry, Mahidol University Research Fund.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
The study protocol was approved by the Faculty of Dentistry/Faculty of Pharmacy, Mahidol University Institutional Review Board (COA.No.MU-DT/PY-IRB 2016/013.1502). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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