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Medicine

Why are Lanolin-based creams and ointments preferred over petroleum-based products for moisturizing and protective properties?

This question was submitted by a general dentist: Why are Lanolin-based creams and ointments preferred over petroleum-based products for moisturizing and protective properties? Dr. Carol Janik and Caroline Fulop provided this initial response.  The key difference between lanolin and petroleum-based products lie in their properties. Lanolin is classified as an emollient whereas Petrolatum is classified as an occlusive. Emollients are oils and lipids that spread easily on the skin and provide partial occlusion resulting in hydration (Rawlings et al., 2004). It has been shown that emollient lipids resemble those naturally found on the skin and have been shown to improve the ...

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Does diabetes affect implant failure rates?

This summary is based on the article published in the Journal of Dental Research: Diabetes and oral implant failure: a systematic review (September 2014) B.R. Chrcanovic, T. Albrektsson, and A. Wennerberg Context Dental implant survival is initially dependent on successful osseointegration following placement. As an implant is restored and placed into function, bone remodeling becomes a critical aspect of implant survival in responding to the functional demands placed on the implant restoration and supporting bone. The critical dependence on bone metabolism for implant survival may be heightened in patients with diabetes (1). Diabetic patients have increased frequency of periodontitis and ...

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How do you treat a patient with scleroderma who has periodontal issues – advanced recession, stripping of the attached gingiva from the roots?

This question was submitted by a general dentist: How do you treat a patient with scleroderma who has periodontal issues – advanced recession, stripping of the attached gingiva from the roots? Dr. George Sandor, DDS MD and Dr. Suham Alexander, Oasis Clinical Editor provided this initial response.      Systemic Scleroderma  Systemic scleroderma is a relatively rare condition that affects ~19/1,000,000 adults annually. Women experience the condition 3 times more than men. A vasoconstrictive event known as Raynaud’s phenomenon is often one of the first signs of the disease which is precipitated by emotional distress or exposure to cold. (It should ...

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Is it safe to use vasoconstrictors in patients with sickle-cell disease?

This question was submitted by a general dentist: Is it safe to use vasoconstrictors in patients with sickle-cell disease? Which one is the best choice? Could I perform a painless dental extraction without vasoconstrictors in these cases? Dr. George Sandor, DDS MD and Dr. Suham Alexander, Oasis Clinical Editor provided this initial response. Sickle Cell Anemia  Sickle cell anemia is a genetic disorder of hemoglobin synthesis occurring predominantly in African, Mediterranean and Asian populations. Affected individuals with carrying one allele have the sickle cell trait and may experience some sickling with exercise or in high altitudes due to lower oxygen tensions. ...

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Are there recommended guidelines for reducing the incidence of shingles in a patient that has a history of developing shingles after dental care?

This question was submitted by a general dentist: Are there recommended guidelines for reducing the incidence of shingles in a patient that has a history of developing shingles after dental care? Dr. George Sandor, DDS MD and Dr. Suham Alexander, Oasis Clinical Editor provided this initial response.  Shingles (herpes zoster) is the reactivation of the chicken pox virus (varicella zoster) which typically establishes dormancy in dorsal root or cranial nerve ganglia during childhood. Reactivation usually occurs later in life mainly affecting thoracic and lumbar dermatomes; however, a small proportion of patients present with trigeminal nerve involvement. Herpes zoster may occur spontaneously ...

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How effective are non-pharmacological interventions in the relief of dry mouth?

This summary is based on the review published in the Cochrane database of systematic reviews: Interventions for the management of dry mouth: non-pharmacological interventions (September 2013) Furness S, Bryan G, McMillan R, Birchenough S, Worthington HV     Context Xerostomia is the subjective sensation of dry mouth. Common causes of xerostomia include adverse effects of many commonly prescribed medications, disease (e.g. Sjogren’s Syndrome) and radiotherapy treatment for head and neck cancers. Non-pharmacological techniques such as acupuncture or mild electrostimulation may be used to improve symptoms. Purpose of the Review To assess the effects of non-pharmacological interventions administered to stimulate saliva ...

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Does the use of antibiotics reduce the frequency of implant failure and post-operative infection?

This summary is based on the article published in the International Journal of Oral and Maxillofacial Surgery: Do antibiotics decrease implant failure and postoperative infections? A systematic review and meta-analysis (January 2014) J. Ata-Ali, F. Ata-Ali, F. Ata-Ali       Context Dental implants are an effective, safe and predictable solution for those who have lost a tooth or teeth due to dental caries, periodontal disease, injury, or other reasons.(1) It is believed that a certain number of early dental implant losses are due to bacterial contamination at implant insertion.(2) It is still debated whether early dental implant failure and ...

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Dealing with the most frequent medical emergencies in the dental office

This summary is based on the article published in the British Dental Journal: General medicine and surgery for dental practitioners: part 3. Management of specific medical emergencies in dental practice (August 2014) M. Greenwood and J. G. Meechan Note: The article could contain medication that is not similarly labelled in Canada.      Purpose of the Article The actions needed to manage specific medical emergencies are discussed. Each emergency requires a correct diagnosis to be made for effective and safe management. Contemporar The article: Discusses treatment for specific emergencies and where appropriate the drugs used. Recognises signs and symptoms of relevant ...

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