RESULTS Comparison of retention of class-V adhesive restorations as a measure to determine clinical bonding effectiveness of adhesives revealed that glass-ionomers most effectively and durably bond to tooth tissue .
Three-step etch- and -rinse adhesives and two-step self-etch adhesives showed a clinical ly reliable and predictably good clinical performance .
The clinical effectiveness of two-step etch- and -rinse adhesives was less favourable , while an inefficient clinical performance was noted for the one-step self-etch adhesives .
SIGNIFICANCE Although there is a tendency towards adhesives with simplified application procedures , simplification so far appears to induce loss of effectiveness .
OBJECTIVES The purpose of this paper was to review current literature on the clinical effectiveness of contemporary adhesives when used to restore cervical non-carious class-V lesions .
Restoration retention in function of time was recorded in order to find out if adhesives with a simplified application procedure are as clinical ly effective as conventional three-step adhesives .
Five-year double-blind randomized clinical evaluation of a resin-modified glass ionomer and a polyacid-modified resin in noncarious cervical lesions.
PURPOSE The aim of this double-blind r and omized study was to compare the clinical performance of a resin-modified glass ionomer ( Vitremer , 3 M ) and a polyacid-modified resin ( Dyract , Dentsply DeTrey ) in noncarious Class V restorations after 5 years . MATERIAL S AND METHODS Twelve patients , having at least one pair of equal-sized noncarious cervical lesions under occlusion and a mean age of 40 years ( range 19 to 63 years ; median 41 ) , were enrolled in this study . A total of 32 restorations ( 16 with each material ) were placed according to the manufacturers ' instructions by two calibrated operators . Two other independent examiners evaluated the restorations at baseline and after 5 years according to the USPHS criteria . The assessment criteria were : retention , anatomical form , marginal adaptation and marginal discoloration , color match , surface texture , and secondary caries . Statistical analysis was conducted using Fisher 's exact test ( alpha = 0.05 ) . RESULTS No secondary caries was detected with either material . The retention rate for Vitremer ( 93 % ) and for Dyract ( 78.5 % ) did not differ significantly ( p > 0.05 ) . Regarding anatomical form , only two restorations of each material were recorded as bravo . In terms of marginal adaptation , 38.5 % of Dyract restorations were rated alpha and 61.5 % bravo , while 84.6 % of Vitremer restorations were rated alpha and only 15.4 % bravo ( p < 0.05 ) . For marginal discoloration , 18.2 % of Dyract restorations and 84.6 % of Vitremer restorations were rated alpha , with the remaining rated bravo . 86 % of Vitremer restorations were rated as bravo and 23 % alpha for both surface texture and color match . All Dyract restorations were classified as alpha regarding surface texture , and only two Dyract restorations ( 18.2 % ) were classified as bravo in the color match item . CONCLUSION The marginal adaptation of the RMGIC ( Vitremer ) was significantly better , the marginal discoloration lower , and the retention rate higher ( though not significantly ) than that of the PMRC ( Dyract ) after 5 years in situ . Dyract performed better in terms of surface texture and color match in noncarious Class V restorations after 5 years
RESULTS Comparison of retention of class-V adhesive restorations as a measure to determine clinical bonding effectiveness of adhesives revealed that glass-ionomers most effectively and durably bond to tooth tissue .
Three-step etch- and -rinse adhesives and two-step self-etch adhesives showed a clinical ly reliable and predictably good clinical performance .
The clinical effectiveness of two-step etch- and -rinse adhesives was less favourable , while an inefficient clinical performance was noted for the one-step self-etch adhesives .
SIGNIFICANCE Although there is a tendency towards adhesives with simplified application procedures , simplification so far appears to induce loss of effectiveness .
OBJECTIVES The purpose of this paper was to review current literature on the clinical effectiveness of contemporary adhesives when used to restore cervical non-carious class-V lesions .
Restoration retention in function of time was recorded in order to find out if adhesives with a simplified application procedure are as clinical ly effective as conventional three-step adhesives .