A three-year clinical evaluation of two dentin bonding agents.

Background: A new restorative called a "giomer composite" has been introduced. The authors conducted a study to determine retention, anatomical form, caries, staining, marginal discoloration, marginal adaptation, surface roughness and sensitivity of giomer compared with those of a microfilled composite.

Methods: The authors placed 40 sets of restorations randomly in canines and premolars in vivo.