Conclusion The current best evidence indicates that a glass ionomer cement has a significantly lower risk of loss of a NCCL restoration compared to either a three-step etch- and -rinse or a two-step etch- and -rinse adhesive system ; a three-step etch- and -rinse adhesive system has a significantly lower risk of loss of a NCCL restoration compared to a two-step etch- and -rinse adhesive system .
No significant difference could be observed in the risk of loss of a tooth-colored NCCL restoration between a three-step etch- and -rinse adhesive system and either a two-step self-etch or a one-step self-etch adhesive system
Objectives The aim of this review was to assess the effect of different adhesive systems and tooth preparation on the retention of tooth-colored restorative material s  placed in non-carious cervical lesions ( NCCLs ) .
Clinical evaluation of four Class 5 restorative materials: 3-year recall.
PURPOSE To place four restorative material s , including two resin-based composites ( Pertac III and Synergy ) , an improved resin-modified glass-ionomer ( Fuji II LC Improved ) , and a compomer ( Dyract AP ) , in Class 5 non-carious cervical lesions and to evaluate and compare those restorations for marginal discoloration , anatomic form , surface texture , secondary caries , retention , and marginal adaptation at baseline and annually for 3 years . METHODS The tested material s were used to restore moderate-size Class 5 non-carious cervical lesions . All material s were used following the manufacturers ' directions for etching , bonding , curing , and finishing . Thirty restorations of each material were placed . After rubber-dam isolation , a bevel was placed on the occlusal margin of all preparations except the Fuji II LC Improved , and all preparations were cleaned with pumice . Each restorative material was placed and cured in increments except Fuji II LC Improved . All restorations were evaluated at baseline , 6 months , 1 , 2 , and 3-year recalls using a modified USPHS scale . RESULTS Analysis with Chi Square and Logit Analysis revealed that , at 3 years , Pertac III and Fuji II LC Improved were significantly rougher than all other material s. Pertac III had significantly poorer marginal adaptation than all other material s. All other comparisons were not significant . At 3-year recall , most restorations were satisfactory
Conclusion The current best evidence indicates that a glass ionomer cement has a significantly lower risk of loss of a NCCL restoration compared to either a three-step etch- and -rinse or a two-step etch- and -rinse adhesive system ; a three-step etch- and -rinse adhesive system has a significantly lower risk of loss of a NCCL restoration compared to a two-step etch- and -rinse adhesive system .
No significant difference could be observed in the risk of loss of a tooth-colored NCCL restoration between a three-step etch- and -rinse adhesive system and either a two-step self-etch or a one-step self-etch adhesive system
Objectives The aim of this review was to assess the effect of different adhesive systems and tooth preparation on the retention of tooth-colored restorative material s  placed in non-carious cervical lesions ( NCCLs ) .