Background: To investigate pulp response to the application of two types adhesive systems (total-etch and self-etch) in human premolar teeth.
Materials and methods: Cavities limited to enamel walls in all margins with 2.5 mm depth were prepared on buccal surfaces of thirty three human premolars. The cavities were treated with the following adhesive. Single Bond (SB) and Prompt L-Pop (PLP). The teeth were extracted after 30 days and prepared due to histological technique.
Results: Pulp responses were evaluated in three field including inflammatory cell response, pulp tissue disorganization and restorative dentin formation. There were no differences in histological response of the pulp tissue (P > 0.05).
Conclusion: Both adhesive systems showed good biological compatibility.
Keywords: Adhesive system; Prompt L-Pop; Pulp response; Single Bond.