Three species of bacteria are most commonly implicated in the failure of endodontic treatment. The microorganisms colonize dentinal walls and any debris that is pushed through the apex as well as dentine tubules of pulpless necrotic teeth. Enterococcus faecalis Associated with 30-40% of failed root canal treatments May be resistant to calcium hydroxide as well […]
Root canal treatment failures can be attributed to two main causes: microbial or non-microbial. MICROBIAL causes can either be intra- or extra-radicular in nature Intraradicular Microorganisms found in root-canal-treated teeth with persisting periapical disease are different from those found in untreated teeth. The majority of bacteria found in treated teeth are Gram positive facultative anaerobes […]
Drs. Christine Chambers and Ross Anderson joined Dr. John O’Keefe to present ideas about how to deal with children who are anxious and fearful of dental treatment. Dr. Christine Chambers Dr. Christine Chambers is a clinical psychologist and Professor of Pediatrics and Psychology. Her research, based in the Centre for Pediatric Pain Research (IWK Health Centre), […]
The goal of vital pulp therapy is to preserve or regenerate tissues of the pulp-dentine complex of affected teeth and includes: direct and indirect pulp-capping, pulpotomy and more recently, regenerative pulp therapy. Pulp tissue may become compromised due to caries, loss of tooth structure/surface, traumatic injury or operatively as a result of cavity preparation. However, […]
A patient reports tooth sensitivity during the initial phase of tooth-whitening procedures, what strategies may be implemented? Pulpal penetration of peroxide, dehydration, and tray-related tooth movements have been implicated in bleach-induced tooth sensitivity. This sensitivity is transient and generally dissipates within a short time. Strategies Decreasing the contact intervals may be a start, using 1-hour […]
Dr. Trudy Nwachukwu, third-year Periodontics Resident at the University of Manitoba, presents the resolution of the case on gingival recession using two grafting techniques. At the end of the video, Dr. Anastasia Cholakis discusses the dentists’ feedback that we received for this case. We would like to thank our viewers who took the time to […]
One of CDA Oasis priority topics for 2015 is communication and its role in the success of the dental practice. We are pleased to present a series of made-up scenarios related to various aspects of communication in the dental office. In the first phase of this case conference, we request that you provide your comments and feedback as […]