| 1548 Clinical Study of Longevity of Fibre Reinforced Composite Periodontal Splints | ||
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T.M. VARRELA1, S. IKOLA1, P.K. VALLITTU1, G. GRUSOVIN2, P. VÁLYI3, and L. SEW"N1, 1University of Turku, Institute of Dentistry, Finland, 2Private Practice, Gorizia, Italy, 3University of Szeged, Hungary Novel polymethylmetacrylate-dimethacrylate preimpregnated glass fibre reinforcement materials have been successfully used in both indirect and direct dental applications. Objectives: The aim of this five multi-center study was to evaluate the longevity of the unidirectional and woven preimpregnated glass fibres(Stick®, everStick®) as a periodontal splint in patient with advanced bone loss. These glass fibres have a flexural strength between 800-1280 MPa and the bonding capability to composite is improved due to a unique interpenetrating polymer network structure. Methods: Seventy-two periodontal patients, who needed permanent splint and had more than 50% of marginal bone loss, were chosen to this study. In forty-nine cases were treated with Stick® and in twenty tree cases with prewetted everStick®fibres.Internal and external splints were placed either on posterior or anterior areas. Stick®fibre was wetted with Bis-GMA based adhesive for 5 minutes prior to use. Tooth preparation needed for internal splint was 2 mm deep and wide. For surface retained splints teeth were cleaned with pumice, etched and bonded in a standard manner and a thin layer of flow composite was placed on teeth and the glass fibre bundle was pressed into composite. All the fibres were completely covered with a restorative composite. Occlusion was adjusted if needed. Results: At six months re-call, one partial debonding and two delaminations of composite was noted in the Stick®-group. At one year follow-up one partial debonding occurred in the Stick®-group. In everStick®-group no failures were recorded. All defective splints were repaired and remained functional. Overall survival rate was 94.5 % and functional survival rate was 100 % after one year. Conclusions: The preliminary results of this follow-up study suggests that the glass fibre reinforced periodontal splint is a good treatment option for permanent splinting. In addition, patient's acceptance was high and the splints were considered comfortable, esthetic and easy to maintain.
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| Seq #171 - Special Topics 8:00 AM-9:30 AM, Friday, 12 March 2004 Hawaii Convention Center 313-C | ||
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Back to the Dental Materials: IV - Clinical Trials Program
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