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Restorative Dentistry

Does crown-root ratio matter or not with an integrated implant?

(Content under development) The following linked questions were submitted by a practising dentist: Does crown-root (C/R) ratio matter or not with an integrated implant and, then more importantly, what do you do in your practice? What does the literature say about C/R ratio for implants with regard to short implants and crowns that are long or longer than the 50/50 guide for natural teeth? JCDA Editorial Consultants Drs. Reynaldo Todescan of the University of Manitoba, David Chvartszaid of the University of Toronto, and Ken Sutherland of the University of Saskatchewan provided these initial comments for consideration: According to Dr. Todescan: ...

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For the frail elderly, how often should fluoride varnish be applied and in what doses?

(Content under development) The following question was submitted by a practising dentist: I am working in a residential care centre with mostly frail elderly. I am looking for information on Fluoride varnish application and dental caries. How often should it be applied and in what doses? JCDA Editorial Consultants Drs. Michael MacEntee of Vancouver, Michael Wiseman and Rita Hurley of Montreal and Mary McNally of Halifax provided this initial discussion for consideration: Dr. McEntee opened the discussion: Management of caries requires a multifaceted approach (which includes applying fluoride varnish periodically), the primary objective of which is to stabilize the normal sequence ...

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Advice on fluoride supplements for children in non-fluoridated areas

(Content under development) The following question was submitted by a practicing dentist: As I now practice in a newly “non-fluoridated” area I am looking at my recommendations for supplemental fluoride for my pediatric population. Are there any universally adopted guidelines available? JCDA Editorial Consultants Drs Felicity Hardwick of Nanaimo and Sarah Hulland of Calgary provided this initial response for consideration: Since the question relates to a newly non-fluoridated area we would firstly recommend that the dentist check that water fluoride status is indeed below the recommended optimal level of 0.7 ppm. Before prescribing fluoride supplements, a thorough clinical examination, dental ...

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Does placing a resin coating on a setting GIC impair fluoride release?

(Content under development) The following question was submitted by a practising dentist: Is there any solid evidence that the coating recommended for Resin Based Glass Ionomer Restorations impedes the release or uptake of Fluoride? JCDA Editorial Consultant Dr. Alan Kilistoff of the University of Alberta provided this initial response for consideration: The immediate answer is yes, but in context it is probably not clinically significant.  An article from Mazzaoui et al, demonstrates that fluoride release is about 75-90% less available after coating with a resin adhesive, but that fluoride is still available. The main purpose of the coating is to ...

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