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 ) .
A calcium aluminate cement as restorative material in Class V cavities.
Recently a calcium aluminate cement ( Doxa Certex , Uppsala , Sweden ) has been developed intended to be used as direct restorative filling material . The aim of this study was to evaluate intra-individually the experimental calcium aluminate cement ( CAC ) and a resin composite ( RC;Tetric Ceram ) in Class V restorations . Each of 46 participants received at least one pair of restorations of the same size , one CAC and one RC . The 119 restorations were evaluated clinical ly , according to slightly modified USPHS criteria , at baseline , after 6 mths , 1 , 2 and 3 yrs . None of the patients reported post-operative sensitivity . At 3 yrs , 111 restorations were evaluated . Significantly better clinical durability was shown for RC . Two non-acceptable CAC restorations were observed at 6 months , 3 CAC and 1 RC at 12 months , 5 CAC and 2 RC at 24 months , and 8 CAC at 36 months . This result ed in a cumulative failure frequency of 32 % for the CAC material and 5 % for the RC material . Main reason for failure for the CAC was total or partial lost restorations , and for the RC lost restorations . It can be concluded that the CAC showed a non-acceptable clinical failure rate for Class V restorations
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 ) .