Valutazione della risposta parodontale in due tipologie di protesi implantare

A new intraoral luting technique between electroformed galvanic gold caps (AGC) and a metallic framework for a Cement-retained Implant-supported Metal-resin-fixed Complete-denture (CIMC) is presented. The peculiarity is the different prosthetic design with the metallic framework that is 1.5 mm shorter than the margin of the galvanic caps. As a consequence, the conventional thick prosthesis margin (AGC, cement for the luting phase, framework)is modified into a thin AGC prosthesis seal (0,3 mm) just beyond the apical limit of the aesthetic material. Passive fit is achieved during the intraoral luting phase between the framework and the galvanic caps. In this retrospective study we analyzed the periodontal response (plaque index and sulcus bleeding index) between patients treated with the conventional technique and patients treated with the new technique. The results (36 months followup) show that the new prosthetic techniques allows better periodontal health and in both groups, according to Literature, we found a positive correlation between plaque index and sulcus bleeding index. In conclusion, the new procedure is efficient, standardized, and enhances aesthetics and periodontal health.