Single versus multiple adjunctive Er,Cr:YSGG application to scaling and root planing in periodontal maintenance patients
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ORIGINAL ARTICLE
Single versus multiple adjunctive Er,Cr:YSGG application to scaling and root planing in periodontal maintenance patients with residual periodontal pockets Nuttha Watchanasanout 1 & Thitiwan Teparat-Burana 2 Received: 17 September 2019 / Accepted: 8 September 2020 # Springer Nature Switzerland AG 2020
Abstract Purpose The aim of this study was to compare the clinical results between single and multiple Er,Cr:YSGG laser applications as an adjunct to scaling and root planing (SRP) in periodontal maintenance patients with residual periodontal pockets. Methods This study was a split-mouth, double-blind, randomized clinical trial with 17 periodontal maintenance patients who presented two single-rooted teeth with probing depth (PD) of 5–9 mm and bleeding on probing (BOP). The teeth were randomly assigned to group A (single Er,Cr:YSGG application + SRP) and group B (multiple Er,Cr:YSGG application + SRP). Presence of plaque, BOP, PD, relative probing attachment level (RPAL), and relative gingival recession (RGR) was evaluated at baseline, 3 months, and 6 months after treatment by one calibrated examiner. Results The results showed no statistically significant differences in PD reduction between groups at 3 months (group A: 1.06 ± 1.09 mm vs. group B: 1.00 ± 1.12 mm) and 6 months (group A: 1.18 ± 1.47 mm vs. group B: 1.00 ± 1.22 mm) compared with the baseline. At 3 months after treatment, the RPAL in group A had a gain (0.65 ± 1.06 mm) while group B was at a loss (0.06 ± 0.83 mm). At 6 months, the RPAL changes between 2 groups showed no statistically significant differences. Only in group B, wherein RGR had a statistically significant increase at 3 months (1.00 ± 0.94 mm) and 6 months (0.71 ± 0.69 mm) after treatment. However, this showed no statistically significant difference when compared with group A. Conclusion Both single and multiple adjunctive Er,Cr:YSGG applications to SRP in periodontal maintenance patients with residual periodontal pockets demonstrated PD reduction. Only the single laser application group showed clinical attachment level gain, and the multiple application group resulted in an increased gingival recession. However, there are no statistically significant differences between the two treatment modalities in all clinical parameters at 6 months. Keywords Er,Cr:YSGG laser . Scaling and root planing . Residual periodontal pockets . Supportive periodontal therapy
After the completion of active periodontal treatment, supportive periodontal therapy (SPT) is necessary to maintain periodontal health and prevent the recurrence of disease [1]. The residual probing pocket depth ≥ 6 mm is a risk indicator for tooth loss and progression of periodontitis during SPT [2]. Lang et al. [3] studied the indicator of periodontal stability, wherein the absence of BOP was a reliable predictor for maintenance periodontal health and the negative predictive value was 98%. Moreover, * Thitiwan Teparat-Burana [email protected] 1
Dental Department, Kalasin Hospital, Kalasin, Kalasin province, Thailan
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