Document Classification

Section Type: METHODS

Text: A double-blinded, placebo-controlled, randomized clinical trial was conducted in 30 severe CP patients (14 males and 16 females, 40. 5 8. 4 years old on average from 35 to 60) receiving 3 different sequences of debridement-antibiotictherapy : Group A, antibiotic usage (metronidazole, MTZ, 0. 2 g, tid, 7 d ; amoxicillin, AMX 0. 5 g, tid, 7 d) was started together with SRP (completed by 2 times in 7 d) ; Group B, antibiotic usage (MTZ 0. 2 g, tid, 7 d ; AMX 0. 5 g, tid, 7 d) was started 1 d after SRP (completed by 2 times in 7 d) ; Group C, SRP alone [probing depth (PD), bleeding index (BI) and tooth mobility] was examined.