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  • Title: Prospective 3-year study of cross-arch fixed partial dentures in patients with advanced periodontal disease.
    Author: Yi SW, Carlsson GE, Ericsson I.
    Journal: J Prosthet Dent; 2001 Nov; 86(5):489-94. PubMed ID: 11725277.
    Abstract:
    STATEMENT OF PROBLEM: Several choices exist for the treatment of advanced periodontal disease. One is a combined periodontal and prosthetic treatment that includes cross-arch fixed partial dentures (FPDs). However, the outcomes of such therapy have been reported mainly from studies in Scandinavian countries. PURPOSE: The aims of this study were: (1) to longitudinally evaluate, after periodontal and prosthodontic treatment that included cross-arch FPDs, treatment outcomes in Korean patients who suffered from severe periodontitis; and (2) to evaluate the patients' treatment assessments and the FPDs after 3 years. MATERIAL AND METHODS: This survey included 39 Korean patients provided with 50 FPDs. Clinical and radiographic examinations were performed at the time of delivery of the FPDs and at the 3-year follow-up examinations. The prostheses were divided into 3 groups according to design (end abutments, unilateral cantilever, and bilateral cantilevers) and the amount of supporting tissues at the time of insertion. On average, only 26% of the total original periodontal tissue remained at the time of insertion. The FPDs consisted of 11 to 14 units, with a mean of 5 to 7 abutments in the 3 groups. The mean periodontal ligament area of the abutments was 79% of the total ligament area of the replaced teeth. RESULTS: At the 3-year follow-up examination, the FPDs were stable in all patients, who in general displayed good oral hygiene and had healthy periodontal conditions. The change in periodontal ligament area over the 3-year observation period was negligible (1 mm(2) per dental unit) and showed no statistically significant difference in relation to FPD design. Most patients were satisfied with the function of their FPDs with respect to mastication, phonetics, hygiene, esthetics, and chewing comfort. A few patients stated that they were careful with the FPDs and avoided certain foods (for example, raw peanuts and grilled squid) because they felt insecure with the cantilever segments. Most patients reported that they would choose the same treatment again. CONCLUSION: Patients with advanced periodontal disease demonstrated successful outcomes over a 3-year period and reported satisfaction with combined periodontal and restorative treatment that included cross-arch FPDs.
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