Deviant morphology of the root canal system in mandibular premolars: clinical cases.

Numerous cases of aberrant root and root canal morphology have been described, still diversion occurs more frequently in premolars and molars. To the dental researcher, the aberrations in the mandibular second premolars afford a vast field of interest. The current report presents a clinical case which demonstrates a simplified therapeutic protocol for re-treatment of Vertucci type V root canals.

Biofilm reactor calibration for investigation of composite biodegradation.

The majority of biodegradation studies of composite materials use simplified models of microbial biofilm despite the apparent diversity of the oral microbiota. The use of in vitro systems of "artificial mouth" design is a step towards clarifying the synergistic effect that microbial plaque and human saliva have on composite degradation.

A Comparative In Vitro Study Evaluating the Marginal Adaptation of Zirconium Computer-Aided Design/Computer-Aided Manufacture and Press-ceramic Veneers.

Introduction: One method to evaluate the clinical success of cemented restorations is measuring the marginal adaptation. There is a correlation between the fitting of the restoration and problems caused by clinically undetectable passage of bacteria between the tooth structure and the veneer.

Aim: To evaluate in comparison the marginal adaptation of veneers produced via CAD/CAM and press technique.