Efficacy of photodynamic therapy as adjunct treatment of chronic periodontitis: a systematic review and meta-analysis

Adriano Azaripour, Sebastian Dittrich, Cornelis J. F. van Noorden, Brita Willershausen

Research output: Contribution to journalReview articleAcademicpeer-review


Meta-analysis of treatment effects of antimicrobial photodynamic therapy (aPDT) adjunct to non-surgical scaling and root planing (SRP) in comparison to SRP alone on patients with chronic periodontitis. The meta-analysis was performed according to PRISMA statement and Cochrane Collaboration guidelines. Electronic search complemented by hand search assured a high yield of randomized controlled trials (RCTs) of aPDT as adjunct modality to SRP. Differences in probing depth (PD) and clinical attachment level (CAL) were calculated with 95% confidence intervals and pooled in a random effects model. Analysis for intra- and inter-study heterogeneity was provided by chi (2) and I (2) tests, and publication bias was checked by funnel plots. Pooled overall effects of 26 RCTs attested significant benefits of aPDT adjunct to SRP with respect to PD reduction (MD 0.37; 95% CI 0.12-0.53; P <0.0001) and CAL gain (MD 0.33; 95% CI 0.19-0.48; P <0.00001) after 3 and 6 months. Sensitivity analysis minimized heterogeneity of PD reduction (MD 0.21; 95% CI 0.13-0.30; P <0.00001) and CAL gain (MD 0.36; 95% CI 0.27-0.46). aPDT adjunct to SRP provides significant PD reduction and CAL gain in treatment of chronic periodontitis. This moderate effect was found after 3 and 6 months which is short from a clinical perspective
Original languageEnglish
Pages (from-to)407-423
JournalLasers in medical science
Issue number2
Early online date2017
Publication statusPublished - 2018

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