Coexistence of horizontal bone loss and dehiscence with the bundle and conventional fiber post: a finite element analysis.

Horizontal bone loss (HBL) and dehiscence are common supportive tissue defects. This study evaluated the stress distribution in the presence of HBL or dehiscence and two types of fiber posts. Twelve premolars that were endodontically treated (Model-E), restored with conventional (Model-C), and bundle (Model-B) post were modeled.

Frequency, localization, and diameter of the accessory maxillary ostium and its relationship with sinus pathologies and nasal cavity variations: an anatomical study based on cone beam computed tomography.

Background: The aim of the present study was to determine the presence, frequency, and characteristics of the accessory maxillary ostium (AMO) in a specific Turkish population using cone beam computed tomography (CBCT) and to evaluate the frequency of pathologies and anatomical variations in the nasal cavity and maxillary sinus and to assess their relationship with the AMO.

Materials And Methods: This study retrospectively evaluated the presence of AMO in CBCT images of 543 patients, the patients' age, gender, and dentition status, the presence of nasal cavity variations and maxillary sinus pathologies, and their relationship to the presence of AMO. Descriptive values of the data and comparative results were included.

Seroprevalence and Risk Factors for Hepatitis B, Hepatitis C, and HIV in a Substance Abuse Treatment Center.

Introduction: Alcohol and substance use disorders are important public health problems with an increased risk for bloodborne and sexually transmitted infections.

Objectives: To determine the frequency and risk factors of hepatitis B, hepatitis C and HIV in individuals with drug and alcohol addiction.

Methodology: This prospective study was conducted in the outpatient clinic of Alcohol and Substance Abuse Treatment and Education Center (ASATEC), Izmir, Turkey.

Glycolic acid on push-out bond strength of fiber post and smear removal: an in vitro study.

This study aims to investigate glycolic acid (GA) as a final irrigant on push-out bond strength of fiber post and smear removal. Ninety mandibular premolars were stabilized with a silicone key and photographed, and canal cross-section was calculated by image processing software. Round canal morphology was selected.