[Dental adhesive and sealing products submitted to biological in vivo control]

To assess the biocompatibility of 5 dental materials (Gluma, Scotchbond Light Cured, Fuji Type II, Aquacem and Dual Cement), 40 standardized class V restorations were repaired in vivo in human premolars due to be extracted for orthodontic purposes. Histological observation revealed that Gluma, Scotchbond Light Cured and Fuji Type II were eliciting "slight" to "severe" pulpal responses alongside altered odontoblastic layers and inhibited dentinogenesis. These alterations were observed after periods up to 50 days. Aquacem and Dual Cement elicited "moderate" to "severe" reactions. From these results it is concluded on the one hand that the tested products should not be placed without the systematic interposition of a calcium hydroxide liner and on the other hand that the luting agents Aquacem and Dual Cement should not be used on vital teeth.