A 3-year clinical evaluation of a compomer, a composite and a compomer/composite (sandwich) in class II restorations.

Abstract

PURPOSE:

To compare the clinical performance of Dyract, Spectrum-TPH and Dyract layered with Spectrum-TPH (sandwich) in Class II restorations of permanent dentitions.

MATERIALS AND METHODS:

23 adult patients aged 25-62 were selected at random in a general dental practice. Each patient had 3 bicuspid teeth restored with Dyract, Spectrum-TPH and a "sandwiched" combination where Dyract was covered by the composite resin TPH. During the entire study, three patients were lost. Restorations were clinically evaluated using a modified Ryge/USPHS system.

RESULTS:

Over 36 months all three types of restorations performed well clinically. No post-operative sensitivity was reported by any patient indicating proper bonding and sealing. Only one Dyract/TPH sandwich restoration had to be replaced after 2.5 years due to root caries. The Dyract restorations exhibited significantly higher (P = 0.0039) occlusal wear than the TPH and the Dyract/TPH sandwiched restorations. The marginal integrity was also found to be significantly better (P = 0.001) for the TPH and Dyract/TPH restorations compared to Dyract alone, while no significant difference (P > 0.05) could be demonstrated between TPH and Dyract/TPH restorations. The low rate of failure in the three different restorative systems suggests that they are reliable restorative materials in permanent bicuspids over a 3-year period.

• Authors: Martin Wucher, Sias R Grobler, Petrus J C Senekal
• Journal: American journal of dentistry (Am J Dent) Vol. 15 Issue 4 Pg. 274-8 (Aug 2002) ISSN: 0894-8275 [Print] United States
• PMID: 12572648 (Publication Type: Clinical Trial, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Compomers
• Composite Resins
• Dyract
• Methacrylates
• Polymethacrylic Acids
• Resin Cements
• Silicates
• TPH spectrum
• prime and bond 2.1
• Acetone

Topics

• Acetone
• Adult
• Bicuspid
• Chi-Square Distribution
• Compomers
• Composite Resins
• Dental Marginal Adaptation
• Dental Restoration Failure
• Dental Restoration Wear
• Dental Restoration, Permanent (methods)
• Female
• Humans
• Male
• Methacrylates
• Middle Aged
• Molar
• Polymethacrylic Acids
• Resin Cements
• Silicates