Totally bonded ceramic inlays and onlays after eight years.

Abstract

PURPOSE:

The aim of the present study was to clinically evaluate the effect of two different adhesive/resin composite combinations for luting IPS Empress inlays with a special focus on luting gap wear and marginal adaptation.

MATERIALS AND METHODS:

In the course of a controlled prospective clinical split-mouth study, 94 IPS Empress restorations were placed in 31 patients. The inlays were luted with EBS Multi + Compolute (EC; 3M ESPE) or with Syntac + Variolink II low (SV; Ivoclar Vivadent). At baseline and after 0.5, 1, 2, 4, and 8 years, the ceramic restorations were examined according to modified USPHS codes and criteria. Thirty-five selected samples were investigated under an SEM regarding morphological changes; marginal quality analysis was carried out using a stereo light microscope, and luting composite wear was scanned with a profilometer.

RESULTS:

Eight patients (including 25 restorations) missed the recalls; the recall rate at the last investigation was 72%. After 96 months of clinical service, seven restorations in five patients (six EC, one SV) had to be replaced due to hypersensitivities (n = 5) or inlay fractures (n = 2) resulting in a survival rate of 90%. Over the 8-year period, the restorations revealed no statistically significant differences in terms of surface roughness, color matching, proximal contact, sensitivity, or complaints (p > 0.05, Friedman test). Significant deteriorations were found for marginal integrity (p < 0.05). No significant differences were observed for the different luting systems (p = 0.096, Log rank test/ Mantel Cox). Marginal analysis revealed no statistical difference among the materials (p > 0.05; Mann-Whitney U-test), however, the scans of the luting gap showed that Compolute was more prone to wear (p < 0.05).

CONCLUSION:

For luting of ceramic inlays, no difference between the two luting systems was detectable. The overall failure rate after 8 years was 10%.

• Authors: Norbert Krämer, Michael Taschner, Ulrich Lohbauer, Anselm Petschelt, Roland Frankenberger
• Journal: The journal of adhesive dentistry (J Adhes Dent) Vol. 10 Issue 4 Pg. 307-14 (Aug 2008) ISSN: 1461-5185 [Print] Germany
• PMID: 18792702 (Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Aluminum Silicates
• Compolute
• EBS adhesive system
• IPS-Empress ceramic
• Methacrylates
• Phosphoric Acids
• Resin Cements
• Syntac dentine adhesive
• Dental Porcelain
• Variolink

Topics

• Adult
• Aluminum Silicates
• Dental Bonding
• Dental Porcelain
• Dental Restoration Failure
• Dental Restoration Wear
• Female
• Humans
• Inlays
• Male
• Methacrylates
• Middle Aged
• Phosphoric Acids
• Prospective Studies
• Resin Cements
• Young Adult