Effect of Ultrasonic Activation on Dentinal Tubule Penetration of Bio-C Temp and Ultracal XS: A Comparative CLSM Assessment.

Objective: The aim of this study was to compare the effect of ultrasonic activation (UA) on tubular penetration between Bio-C Temp and Ultracal XS intracanal medicaments.

Methods: Forty single-rooted human premolars were endodontically prepared and divided into 4 experimental groups (n=10): Bio-C Temp, Bio-C Temp+UA, UltraCal XS and UltraCal XS+UA. All medicaments were previously mixed with a specific calcium marker (Fluo-3) and passively injected into the canals.

Serotonin transporter gene (5-HTT) polymorphism and major depressive disorder in patients in Bogotá, Colombia.

Introduction: The 5-HTT short allele has been controversially associated with an increased risk of major depressive disorder. 

Objective: To determine the association of 5-HTT short allele with major depression in Bogotá, Colombia. 

Materials And Methods: We carried out a study of cases (n=68) matched 1:1 with controls by gender and age (±5 years).