Influences of desensitizing agents on bond strength of etch-and-rinse and self-etch adhesive system to dentin.

Background: Cervical lesions requiring adhesive restoration may present with dentin hypersensitivity, but the effect of desensitizer treatment on microtensile bond strength (MBS) is inconclusive.

Aim: The aim of the present study was to assess the influence of two types of dentin desensitizing treatment on bond strength to dentin.

Materials And Methods: Thirty-six extracted human mandibular first premolars were used to obtain superficial buccal cervical dentin.

Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems.

Objectives: This study investigated the influence of glide path size and operating kinetics on the time to reach the working length and the fracture resistance of Twisted File (TF) and Endostar E3 files.

Materials And Methods: A total of 120 mandibular single-rooted premolars were selected. Two methods of kinetic motion (TF adaptive and continuous rotary motion) and file systems (TF and Endostar E3) were employed.