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News & Events

Can addictive behaviour be altered? The concept of drug-evoked synaptic plasticity

This summary is based on the article published in the Journal of Neuroscience: Drug-Evoked Synaptic Plasticity Causing Addictive Behavior (November 2013) Context The core element of the addiction process: an initially neutral stimulus becomes attractive when associated with drug consumption, and even after prolonged periods of abstinence this cue may trigger craving and cause the subject to relapse. Therefore, many researchers have argued that the secret to understanding addiction lies in the elucidation of the “memory trace” that links the cue to the compulsive drug use. The implicit underlying hypothesis is that addictive drugs generate an inappropriate learning signal that leads to the encoding of a unique trace, which, when reactivated, has ...

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How safe is sedation for overweight/obese children?

This summary is based on the article published in the Pediatric Dentistry Journal: The safety of sedation for overweight/obese children in the dental setting (September/October 2012) Purpose of the Study Examine childhood overweight/obesity as a risk factor for adverse events during sedation for dental procedures. Key Messages Overall, weight percentiles were higher in children who had one or more adverse events. Similarly, patients with higher body mass index (BMI) percentiles were more likely to experience adverse events. Although preliminary in nature, these findings suggest that childhood overweight/obesity may be associated with adverse events during sedation for dental procedures. In the interim, practitioners should obtain ...

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How do you manage a severely disabled and G tube-fed patient?

This question was submitted by a general dentist: Is there a resource with current information on appropriate oral care for severely disabled and G tube-fed population? There are many position papers and guidelines indicating that this population needs care. However, I found only limited information on the actual clinical treatment provided to them and on what the treatment goals should be. These patients often present with gross calculus, limited cooperative ability for professional cleaning, and present with the risk of an aspiration pneumonia. Any attempt to clean the teeth in the office is limited at best, then the question is: what ...

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Primary failure of tooth eruption: what is the etiology, diagnosis, and treatment?

This summary is based on the article published in the Dental and Medical Problems journal: Primary Failure of Tooth Eruption – Etiology, Diagnosis and Treatment (Issue 50 (3) 2013) Context  Primary failure of eruption (PFE) is a rare condition that involves impeded eruption of teeth despite the lack of an identified local or general causative factor. Since molar teeth are mainly concerned, a typical clinical image presents extensive lateral open bite. A characteristic radiological feature depicts large radiolucent fields around embedded tooth germs. Research performed in recent years has provided evidence that a defect of the eruption mechanism on a genetic background is responsible for ...

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How accurate, clinically effective, and cost-effective are light-based screening techniques for the early detection of oral cancer?

By Lieutenant-Colonel Jean Pierre Picard Lieutenant-Colonel Jean-Pierre Picard is a Periodontist of the Canadian Armed Forces. He is currently the Deputy Commanding Officer of 1 Dental Unit and the Royal Canadian Dental Corps Periodontics Practice Leader. Lieutenant-Colonel Picard is also an examiner for the National Dental Specialty Examination in Periodontics of the Royal College of Dentists of Canada, the Treasurer of the Canadian Academy of Periodontology (CAP), and the CAP representative to the Canadian Dental Specialties Association. Dentists are, by way of formal education and expertise, the health care providers best equipped to detect abnormalities of the oral cavity and ...

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Deep Coma and Dentistry: Could a Montreal Researcher’s Finding Help Save Lives?

Dr. Florin Amzica of the University of Montreal faculty of dentistry recently published in PLoS ONE an article on never before reported cerebral activity in people with a flat electroencephalogram (EGG). Dr. Amzica is an associate professor and the head of the laboratory on sleep neurophysiology and altered state of consciousness at the University of Montreal. His research interests include the understanding and management of dentistry-related sleep disorders. The JCDA Oasis team spoke with Dr. Amzica to find out more about his groundbreaking finding. Here are the study key points. Research highlights Brain activity extends beyond deep coma associated with ...

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Diabetes and periodontal diseases: what does the consensus report of the Joint EFP/AAP Workshop on Periodontitis and Systemic Diseases say?

This is the summary of the report issued by the Joint European Federation of Periodontology and the American Academy of Periodontology Workshop on Periodontitis and Systemic Diseases: Diabetes and periodontal diseases: consensus report of the Joint EFP/AAP Workshop on Periodontitis and Systemic Diseases (April 2013) Context Diabetes and periodontitis are complex chronic diseases with an established bidirectional relationship. There is long-established evidence that hyperglycemia in diabetes is associated with adverse periodontal outcomes. However, given the ubiquity of periodontal diseases and the emerging global diabetes epidemic, the complications of which contribute to significant morbidity and premature mortality, it is timely to review ...

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Do self-etch adhesives cause less postoperative sensitivity than etch-and-rinse adhesives?

This summary is based on the critical appraisal published in the Journal of Esthetic and Restorative Dentistry: Post-op Sensitivity with Direct Composite Restorations (August 2013) Studies Reviewed Total-etch versus Self-etch Adhesive: Effect on Postoperative Sensitivity. Journal of the American Dental Association 2003 (134:1621–9) Postoperative Sensitivity in Class I Composite Resin Restorations in Vivo. Journal of Adhesive Dentistry 2006 (8:53–8) Clinical Evaluation of a Two-step Etch & Rinse and a Two-step Self-etch Adhesive System in Class II Restorations:Two-year Results. Operative Dentistry 2009 (39:656–63) Effect of Glass-ionomer Cement Lining on Postoperative Sensitivity in Occlusal Cavities Restored with Resin Composite—A Randomized Clinical Trial. Operative Dentistry 2009 (34:648–55) Key Messages Much ...

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