5 years ago

A double-masked Randomized Clinical Trial (RCT) comparing four periodontitis treatment strategies: 5-year clinical results

Vibeke Baelum, Per Gjermo, Hans R. Preus
Aim To test the hypothesis of no difference in the 5-year clinical outcome of therapy between groups of patients treated with conventional over-weeks scaling and root planing or same-day full-mouth-disinfection, with or without adjunctive metronidazole (MTZ). Materials and Methods Following a three-month oral hygiene phase, 184 periodontitis patients were randomly allocated to one of four treatment regimens (1) full-mouth disinfection (FDIS)+ MTZ, (2) FDIS +placebo, (3) scaling and root planing+ MTZ and (4) scaling and root planing+placebo. Following active treatment, patients received biannual maintenance; 161 patients completed the five-year follow-up maintenance and examination, where clinical attachment level (CAL), probing pocket depth (PPD), presence of plaque and bleeding were registered. Results Metronidazole increased the highest CAL recording statistically insignificantly by an average of 0.17 mm while FDIS decreased it by an average of 0.12 mm. The corresponding values for the highest PPD were 0.00 and 0.05 mm, respectively. Conclusion While single-level analyses showed statistically significant differences, they could not be confirmed with more appropriate analyses and were too small to recommend MTZ, with its risk of patient side effects and environmental consequences, for the treatment of patients with severe periodontitis.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/jcpe.12793

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