Speaker: Mohamed Fayad, D.D.S., M.S., Ph.D.; Matthew C. Davis, D.D.S.| This evidence-based presentation will address the classification and diagnosis of different types of cracks and the role of CBCT imaging in these cases, as well as the prognosis and treatment outcomes of endodontically treated cracked teeth.

Speakers: Hagay Shemesh, B.D.S., Ph.D., Marco Aurelio. Versiani, D.D.S., M.Sc., Ph.D. Considering that modern endodontic treatment procedures are basically dependent upon the current-available shaping technology, a comprehensive knowledge of the causal-effect relationship between dentinal microcracks, motor-driven canal preparation and obturation techniques is of paramount importance to predict the optimal safeness of the whole endodontic procedure. This presentation seeks to critically appraise the methodological aspects and the outcome involved in the studies of dentinal microcrack formation after root canal preparation and obturation.

CEX-11: Speaker: Justin R. Kolnick, B.D.S. Laser therapy in dentistry is usually associated with removal of hard or soft tissues, or disinfection of the root canal system. LLLT is a laser or LED light therapy that improves tissue repair (skin wounds, muscle, tendon, bone, nerves), reduces inflammation and reduces pain wherever the beam is applied. CEX-12: Speaker: Dwayne D. Arola, Ph.D. This presentation will address the mechanical behavior of dentin, with special emphasis on the strength and fracture resistance. Details regarding spatial variations in the mechanical behavior within the root and crown will be described, as well as the changes that occur as a result of physiological aging.

Speakers: Louis H. Berman, D.D.S., F.A.C.D. & Anil Kishen, B.D.S., M.D.S., Ph.D. Fractured teeth, whether endodontically treated or not, are not an uncommon occurrence in clinical practice. As clinicians, it is imperative to recognize the clinical and radiographic parameters that may suggest a root fracture.

Speaker: Hagay Shemesh, D.M.D., Ph.D., An increasing number of rotaty NiTi file systems have been marketed by various manufacturers, and these systems differ from one another in the design of the cutting blades, body taper, tip configuration and movements. Despite the obvious clinical advantages the influence of these instruments on the root canal wall is controversial.

Authors: Gianluca Plotino, D.D.S., Ph.D., Nicola Maria Grande, D.D.S., Ph.D., Almira Isufi, D.D.S., Ph.D., M.Sc., Pietro Ioppolo, Dp.H.S..; Eugenio Pedulla, D.D.S., Ph.D.; Rossella Bedini, D.Sc., Ph.D.; Gianluca Gambarini, M.D., D.D.S.; Luca Testarelli, D.D.S., Ph.D. The purpose of this study was to compare in vitro the fracture strength of root-filled and restored teeth with traditional endodontic cavity (TEC), conservative endodontic cavity (CEC), or ultraconservative ‘‘ninja’’ endodontic cavity (NEC) access.

Authors: Sung Hyun Kang, D.D.S., M.S.D., Bom Sahn Kim, M.D., M.S., Ph.D., Yemi Kim, D.D.S., M.S.D., Ph.D. The aims of this study were to analyze the distribution and characteristic features of cracked teeth and to evaluate the outcome of root canal treatments (RCTs) for cracked teeth. The prognostic factors for tooth survival were investigated.