Abstract: Objective: To compare the clinical effects of wrought wire, casting, and telescopic crowns splints on treatment of patients with severe periodontitis. Methods: Sixty eligible patients were included and randomized into 3 groups: wrought wire splints group, casting, and telescopic crowns group. Twenty subjects were in each group. All patients went through sequenced periodontal initial therapy, and then were treated by assigned type of splints. All loosen teeth were fixed. Both supragingival and subgingival scaling was maintained twice a year for the subjects. The clinical parameters including pocket probing depth, clinical attachment loss and tooth mobility were examined and recorded at baseline, 6, 12 and 24 months after splints treatment, respectively. Results: After the treatment of periodontal splints, the probing depth, clinical attachment loss and tooth mobility of the assessed teeth in each group were significantly improved (P<0.05). Notably, the clinical efficacy of telescopic crowns group was superior to the casting and wrought wire groups (P<0.05). The casting group showed significant improvement in terms of all tested parameters comparing with the wrought wire group at 6, 12 and 24 months visit, respectively. Conclusion: All three types of periodontal splints are beneficial in maintaining periodontal health, and can effectively fix the loose teeth, among which the telescopic crowns splints show the most benefit in the treatment of periodontitis.

Key words: Periodontitis , Periodontal splints , Probing depth, Attachment loss , Mobility degree