A Case Series of Zirconia-Based Bridges Luted with a Self-Adhesive Resin Luting Material at 12 Years, in Patients in UK General Dental Practices

摘要

Objectives: further to the publication reporting the results at five years of fixed-fixed all-ceramic bridges, constructed in a yttria oxide stabilized tetragonal zirconium oxide polycrystal (gamma-TZP) substructure, placed in adult patients in UK general dental practices, it was possible to recall 1 patients after 12 years in order to examine the performance of the luting cement, RelyX Unicem by way of assessing the restoration margins. Materials and methods: In the original study, four UK general dental practitioners recruited patients who required fixed hridgework and, after obtaining informed written consent, appropriate clinical and radiographic assessments were completed. The teeth were prepared, bridges constructed in accordance with the manufacturer's instructions and luted with the self-adhesive resin luting material 3M~TM RelyX~TM Unicem Self Adhesive Resin Cement (3M Oral Care Solutions Division). Of the Abridges originally placed, 33 bridges were examined at five-years, Eight bridges were reviewed after 12 -13 years by the clinician who bad placed the restoration, using modified USPHS criteria. Results:Of the 16 bridge retainers, no unsatisfactory margins were noted. Conclusion. The 12-year follow-up indicated satisfactory performance of the eight bridges which were evaluated, with good performance of the luting material, as assessed by examination of the restoration margins.