Clinical evaluation of ceramic inlays and onlays made with two systems: a one-year follow-up.
OBJECTIVE
The aim of this study was to evaluate the clinical performance of ceramic inlays and onlays made with two systems: sintered (Duceram [D], DeguDent) and pressable (IPS Empress [IPS], Ivoclar-Vivadent) after 1 year.


METHODS
Seventy-four restorations - 37 IPS and 37 D - were cemented in 34 patients. Twenty-four premolars and 50 molars received Class II cavity preparations, totaling 28 onlays and 46 inlays. The restorations were evaluated by two independent investigators at baseline, 6 months, and 1 year, according to modified USPHS criteria. Fisher and McNemar statistical tests were employed to assess the survival rate.


RESULTS
After one year, 100% of the restorations were assessed and all the restorations were considered clinically excellent or acceptable. Among the analyzed criteria, only the following received "Bravo" ratings: marginal discoloration: IPS (24.32%), D (13.51%); marginal integrity: IPS (10.81%), D (8.11%); color match: IPS (5.41%), D (5.41%); surface texture: IPS (2.70%), D (10.81%). No "Charlie" or "Delta" scores were given to the restorations.


CONCLUSIONS
Among the analyzed criteria, only marginal discoloration differed statistically significantly from the results of the baseline examination for IPS Empress ceramic restorations (p = 0.008). No significant differences were found between the two ceramics. The two ceramic systems demonstrated excellent clinical performance after a period of 1 year.
Santos
Maria Jacinta M Coelho
MJ
Department of Operative Dentistry, School of Dentistry, Federal University of Bahia, BA, Brazil.
Mondelli
Rafael Francisco Lia
RF
Francischone
Carlos Eduardo
CE
Lauris
José Roberto Pereira
JR
de Lima
Navarro Maria Fidela
NM
D000328:Adult; D000538:Aluminum Silicates / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry*; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007284:Inlays; D008297:Male
D000538:Aluminum Silicates; C095718:Duceram; C075815:IPS-Empress ceramic; D003776:Dental Porcelain