A comparative study of two root-coverage techniques with regard to interdental papilla dimension as a prognostic factor.

This study was designed to evaluate the effectiveness of subepithelial connective tissue graft (SCTG) and acellular dermal matrix allograft (ADMA) in root coverage procedures and to examine the effect of interdental papilla dimensions on the outcome of root coverage using a new approach. This randomized controlled clinical study included 32 gingival recession defects of at least 2 mm classified as Miller Class I or II. Clinical parameters were measured at baseline and 6, 12, and 24 weeks postsurgery. At baseline, all measured clinical parameters were statistically equivalent between the two groups. With regard to the amount of mean root coverage, no significant difference was found between ADMA (85.42%) and SCTG (69.05%) groups. However, the percentage of complete root coverage was significantly greater in the ADMA group (75.0%, versus 31.3% in the SCTG group). Significant positive correlations were found between papilla height and papilla width and mean root coverage, and papilla height of at least 5 mm was associated with complete root coverage. ADMA seems to be a good substitute for SCTG to treat shallow to moderate gingival recessions. In addition, papilla dimensions, as measured using the new method, can help predict the success of future root coverage.

Antimicrobial photodynamic therapy using diode laser activated indocyanine green as an adjunct in the treatment of chronic periodontitis: A randomized clinical trial.

INTRODUCTION: Clinical studies have shown the usefulness of antimicrobial photodynamic therapy (aPDT) as an adjunctive in periodontal therapy. These studies did not utilize indocyanine green (ICG) as a recently introduced photosensitizer. The aim of this study was to perform a full-mouth double-blind randomized controlled clinical study to test the efficacy of adjunctive aPDT with ICG compared with scaling and root planing (SRP) alone in chronic periodontitis treatment. MATERIALS AND METHODS: Fifty patients were selected for this study. All patients received SRP. Then, each patient was randomly assigned to either the test group (aPDT+SRP) or the control group (SRP). aPDT was performed with a diode laser (wavelength: 810nm, power: 200mW) and ICG as photosensitizer. The adjunctive procedure was repeated after 7, 17 and 27 days. The clinical parameters including bleeding on probing (BOP), clinical attachment loss (CAL), plaque index (PI), probing pocket depth (PPD), full mouth plaque score (FMPS) and full mouth bleeding score (FMBS) were measured at baseline and after 1 and 3 months. RESULTS: There were no significant differences between two groups at baseline. BOP, PPD and FMBS showed significant improvements in the test group (P≤0.001). In terms of PI, FMPS and CAL, no significant differences were observed between both groups (P≥0.05). CONCLUSION: aPDT as an adjunctive approach yielded complete resolution of inflammation and significant reduction in periodontal pocket depth. However, aPDT had no additional advantages in clinical attachment gain and plaque score.