[Clinical effect of different sequences of debridement-antibiotic therapy in treatment of severe chronic periodontitis].

Objective: To evaluate the feasibility of full-mouth debridement (subgingival scaling and root planning, SRP) by 2 times within 1 week and compare the clinical effects of different sequences of debridement-antibiotic usage in patients with severe chronic periodontitis (CP).

Methods: A double-blinded, placebo-controlled, randomized clinical trial was conducted in 30 severe CP patients (14 males and 16 females, 40.5 ± 8.

[Effects of bio-glass in subgingival scaling and root planing].

Objective: To evaluate the effect of locally applied bio-glass on the teeth hypersentivity and periodontal recovery after subgingival scaling and root planing.

Methods: In this double blind study, 60 patients with chronic periodontitis were included and were randomly divided into four groups of 15 patients: bio-glass powder and bio-glass paste group (Po+Pa), bio-glass powder group (Po), bio-glass paste group (Pa) and control group. Powder was applied in pockets after subgingival scaling and root planning (SRP) and paste was used as toothpaste for 6 weeks.

[Effect of oral rinse with Turkish gall on the clinical periodontal parameters and halitosis].

Objective: To assess the effect of traditional Chinese medicine, oral rinse of Turkish gall (extracts from Turkish gall) on periodontal and halitosis parameters.

Methods: This single-blinded randomized controlled trial recruited 70 patients with gingivitis or mild to moderate chronic periodontitis. All the patients received the same professional oral hygiene instruction and using toothbrush and fluoride-only paste with same brand and size dispatched by the investigator from baseline to the end.

[Relationship between salivary occult blood and level of volatile sulphur compounds in oral cavity].

Objective: To observe the change of the salivary occult blood after periodontal mechanical therapy, and to assess the correlations between salivary occult blood and the level of volatile sulphur compounds (VSC) in oral cavity, periodontal clinical parameters, respectively.

Methods: Fifty patients with gingivititis, mild or moderate periodontitis were included. The level of VSC were measured by Halimeter(®) and salivary occult blood was tested by Perioscreen(®) before periodontal examination.

[Clinical evaluation of electronic dental analgesia during ultrasonic scaling].

Objective: To evaluate the effect of electronic dental analgesia (EDA) device--Team Up Duo during ultrasonic scaling.

Methods: The clinical trial was conducted as a randomized double-blind split-mouth design. Eighty-one patients requiring ultrasonic scaling were selected as subjects.