Ability of three desensitizing agents in dentinal tubule obliteration and durability: An in vitro study.

Aim: The purpose of this study was to evaluate the effectiveness of three desensitizing agents on dentinal tubule obliteration and their durability in use on the dentinal tubules.

Materials And Methods: Sixty specimens were obtained from 30 extracted sound human maxillary first premolars. Each tooth was mesiodistally sectioned to obtain 30 buccal and 30 lingual surfaces, and enamel was removed in order to simulate hypersensitive dentin.

Efficacy of Super Slick elastomeric modules in reducing friction during sliding: a comparative in vitro study.

Aim: To evaluate and compare the frictional resistance produced by Super Slick modules during sliding with four different types of brackets and four ligature types both in conventional and figure-of-8 ligation method with saliva as lubricant.

Materials And Methods: The frictional resistance was evaluated by using four different ligatures on 0.019" × 0.