Effect of saliva contamination and cleansing solutions on the bond strengths of self-etch adhesives to dentin.

Purpose: This study determined the effect of saliva contamination and cleansing solutions on microtensile bond strengths of self-etch adhesives to dentin.

Materials And Methods: Seventy-five human molars were ground flat to expose mid-coronal dentin and randomly assigned to five groups (N = 15): no contamination, saliva contamination without cleansing, saliva and cleansing with water, saliva and cleansing with 2% chlorhexidine, and saliva and cleansing with 5% sodium hypochlorite. One-third of the specimens in each group of 15 were bonded with Adper Prompt L-Pop (all-in-one self-etch adhesive; 3M ESPE, St.

Effect of finishing instrumentation on the marginal integrity of resin-based composite restorations.

Purpose: This study evaluated the effect of the use of different finishing instruments on the marginal integrity of resin composite restorations.

Materials And Methods: Bovine incisors (N = 75) embedded in epoxy resin had the facial enamel ground and polished to 1200-grit. A standardized cavity (3 x 3 mm, 2 mm deep) was prepared on each specimen and restored with a 2-step total-etch adhesive (Single Bond, 3M ESPE, St.