Clinical observation on all-ceramic restorations using Vita In-Ceram Zirconia glass-infiltrated ceramic

Objective To investigate the clinical effect of Vita In-Ceram Zirconia glass-infiltrated ceramic restorations,and to provide a reference for clinical application.Methods A total of 81 restorations(61 maxillary and 20 mandibular prostheses) made with Vita In-Ceram Zirconia glass-infiltrated ceramic were examined in 59 patients.There were 44 anterior tooth crowns,27 posterior tooth crowns,4 anterior fixed bridges and 6 posterior fixed bridges.Surface,color,anatomic form,and marginal integrity of restorations were assessed at 3 months,6 months,1 year and 2 years after cementation with the California Dental Association(CDA) quality assessment evaluation system.Results It showed that the marginal fitness,color stability and strength of crowns were considered to be satisfactory.Only 0.030 %(two crowns) were not acceptable.One posterior fixed bridge were not acceptable at 3-month visit;however,the fixed bridge were considered to be satisfactory.Conclusion With strict control of indications,it is possible to construct excellent all-ceramic prostheses with the Vita In-Ceram Zirconia glass-infiltrated ceramic system.