Home » Author Archives: JCDA Oasis (page 179)

Author Archives: JCDA Oasis

How effective are antimicrobial solutions?

This summary is based on the article published in Australian Endodontic Journal: Evaluation of the antimicrobial activities of chlorhexidine gluconate, sodium hypochlorite and octenidine hydrochloride in vitro (April 2013) Purpose of the study Compare the antimicrobial activity of sodium hypochlorite (NaOCl), chlorhexidine gluconate (CHX) and octenidine hydrochloride (OCT) in different concentrations against endodontic pathogens in vitro.  Method Agar diffusion procedure was used to determine the antimicrobial activity of the tested materials. Enterococcus faecalis, Candida albicans and the mixture of these were used for this study. In the agar diffusion test, 5.25% NaOCl exhibited better antimicrobial effect than the other concentrations of NaOCl for all strains. Results All concentrations of ...

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View from the Chairside: The Art of Treatment Planning and Case Presentation

By Dr. Mark Venditti Dr. Venditti graduated from the College of Dentistry at the University of Saskatchewan in 2005. He currently practices general dentistry and lives in Kingston, Ontario with his wife and 2 boys. He is a continuing education coordinator for the Kingston and District Dental Society. Dr. Venditti is a JCDA Clinical Practice Advisor.   I have been in general practice for 8 years. During that time, I have learned that in order to keep dentistry fun for me, it is important to regularly take interesting and informative continuing education courses. In February, I went to Scottsdale, Arizona, for a 2-day ...

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View from the Chairside: Temporary Crowns Protocol

By Dr. Mark Venditti Dr. Venditti graduated from the College of Dentistry at the University of Saskatchewan in 2005. He currently practices general dentistry and lives in Kingston, Ontario with his wife and 2 boys. He is a continuing education coordinator for the Kingston and District Dental Society. Dr. Venditti is also a JCDA Clinical Practice Advisor. Until a few years ago, when making temporary crowns for my patients, I would start by taking a full-mouth alginate impression. Towards the end of the appointment, I would reinsert the impression with my temporary crown material to make the crown. Later on, I learned about ...

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Opening the Conversation: Is Dental Caries an Infectious Disease?

This question is a conversation opener on the nature of the caries process Dentists agree that demineralization of tooth surfaces from bacterial acid production is the direct cause of caries. However, the concept of dental caries as an infectious disease is less clear: dental caries are caused by bacteria that are resident flora in the oral cavity, not by an infection of a specific, foreign microorganism—the classical notion of an infectious disease. If the infection is caused by bacteria that originate from the host, can tooth decay be considered an infectious disease and why does it matter? Many dentists were ...

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How do you treat a portion of all porcelain crown that breaks off in esthetic zone?

This question was submitted by a general dentist: Portion of all porcelain crown breaks off in esthetic zone. Do you etch porcelain first with hydrofluoric acid and then enamel/dentin with phosphoric acid, then silane primer on porcelain, then bond on tooth, then restorative material? Is it a big concern, if a little of the hydrofluoric acid gets on tooth structure – could happen easily, especially with a smaller tooth like a lower incisor. Dr. Omar El-Mowafy, Professor and Head of Restorative Dentistry in the Faculty of Dentistry at the University of Toronto provided this quick initial response I am of the ...

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How can I use CBCT and barium markers when placing temporary implants?

On an experimental basis, we have asked a limited number of companies to provide us with practical “How To” answers to clinical questions. We were prompted to conduct this experiment when dental team members told us that they visit company websites and consult company representatives for practical clinical information. We look forward to receiving your feedback on this experiment. By Dr. Robert Waugh When it comes to the placement of temporary implants (TADs) in difficult areas, CBCT technology and radiopaque markers provide the diagnostic views necessary for 3D treatment planning and treatment sequencing in cases involving the temporary replacement of ...

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Do the newer amalgam non-corrosion alloys fill with corrosion products and seal better as they age?

This question was submitted by a general dentist: Do the newer amalgam non-corrosion alloys fill with corrosion products and seal better as they age? Dr. Anuradha Prakki, Restorative Dentistry Assistant Professor, in the Faculty of Dentistry at the University of Toronto, has provided this quick initial response Drafted by Alexandra Rabalski, JCDA Oasis Summer Intern This depends on the material used for the restoration and the size of the initial gap at the amalgam/tooth interface. High-copper, corrosion-resistant amalgam with a small initial interfacial gap between the amalgam and tooth structure seal as rapidly as the lower copper alloys.   Reference Mahler DB, ...

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What is the safest way to clean up the cement found inside a porcelain crown?

This question was submitted by a general dentist: A patient comes in with a full porcelain crown which has come off. The tooth is sound and there is resin cement inside the crown. What’s the safest way to clean up the cement from inside that crown?   Dr. Alan Kilistoff, from the  University of Alberta, provided the following initial response in an interview recorded with Dr. John. O’Keefe. A summary of the interview is provided followed by the complete audio interview (7 minutes)       Historically, the safest way would have been to sandblast out the interior of the crown; ...

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