Articles tagged "materials"
Preservation of Posterior Mandibular Extraction Site with Allogeneic Demineralized, Freeze-Dried Bone Matrix and Calcium Sulphate Graft Binder before Eventual Implant Placement: A Case Series
Demineralized, freeze-dried bone matrix mixed with calcium sulphate graft binder was used for bone reconstruction at an extraction site before implant placement in 3 patients. Advantages and disadvantages of this approach are discussed. Read more
Dimensional Accuracy of 2 Irreversible Hydrocolloid Alternative Impression Materials with Immediate and Delayed Pouring
Two irreversible hydrocolloid alternative impression materials exhibited minimal dimensional changes with immediate and delayed pouring, differing statistically from a traditional impression material but still meeting established clinical standards. Read more
Frequently Asked Questions Regarding Transplants in Dentistry
This complementary resource to CCSA’s Guidance Document for Dentists Providing Human Allogeneic Transplants appears in the print edition of JCDA 2011, Issue 6, pages 355-6. Read more
Frequently Asked Questions Regarding Devices for Use in Dental Health Care
This complementary resource to CCSA’s Guidance Document Pertaining to Devices for Use in Dental Health Care appears in the print edition of JCDA 2011, Issue 6, pages 353-4. Read more
Complicated Subgingivally Fractured Central and Lateral Incisors: Case Report
Recent advances in dental adhesives allow reattachment of fragments in subgingivally fractured teeth. However, success will depend on the skill of the clinician and care by the patient. Read more
Esthetic Rehabilitation of Anterior Teeth with Porcelain Laminates and Sectional Veneers
This clinical report describes application of porcelain laminates and sectional veneers by a minimally invasive method, including a step-by-step protocol for cementation of these delicate restorations. Read more
Direct Chairside Hard Reline at Delivery of a Newly Fabricated Distal Extension Removable Partial Denture: Considerations and Techniques
Achieving an ideal fit in a distal extension RPD may be impossible. However, a quick test at the time of delivery will allow the dentist to determine the need for a direct, chairside hard reline, using the techniques described here. Read more
Fracture Resistance of 3 Types of Primary Esthetic Stainless Steel Crowns
In vitro testing revealed that esthetic stainless steel crowns are capable of resisting typical pediatric occlusal forces over short clinical periods. Read more
Effects of External Bleaching on Restorative Materials: A Review
Bleaching with peroxide agents may alter the surface roughness, microhardness or colour of some restorative materials. Patients should be made aware of these potential changes and the possibility that their restorations may need polishing or replacing after bleaching procedures. Read more
FDI World Dental Federation Report
Dr. Jack Cottrell of Port Perry, Ontario, is a member of the FDI World Dental Federation Council. Dr. Cottrell provided JCDA with an update on FDI’s activities. Read more
Effect of Distance on Irradiance and Beam Homogeneity from 4 Light-Emitting Diode Curing Units
Quantitative analysis of irradiance and beam homogeneity from 4 curing lights revealed differences between units and changes with increasing distance. These results have implications for the adequacy of curing of deep restorations. Read more
Notice on Denture Creams Containing Zinc
Health Canada and GlaxoSmithKline (GSK) published an information document in February 2010, advising health professionals about potential health risks to patients from the long-term excessive use of denture adhesives that contain zinc. Read more
Surface Characteristics of Zirconia-Based Posterior Restorations: Clinical and Scanning Electron Microscopic Analysis
Zirconia-based posterior fixed dental prostheses were reliable over the medium term (4 years). However, surface alterations of the veneering ceramics could cause subsequent clinical problems. Read more
Research at UBC Dentistry
The UBC faculty of dentistry has an exceptional history of research achievement and has implemented, through its strategic plan, a foundation for continued excellence in research. Read more
New Practical Resources for Dentists on Medical Device Licences and Transplant Materials
CDA’s Committee on Clinical and Scientific Affairs (CCSA) has produced 2 new guidance documents for dentists about medical device regulations and transplant materials used in dental health care. Read more
Augmentation of the Maxillary Sinus: Comparison of Bioimplants Containing Bone Morphogenetic Protein and Autogenous Bone in a Rabbit Model
In a rabbit model, bioimplants containing bone morphogenetic protein had more rapid initial production of bone for augmentation of the maxillary sinus than other materials tested, including autogenous bone. Read more
Dentist Has No Issue with Grey Market Purchases
The interview1 with Bernie Teitelbaum regarding the grey market reminded me of what our President said about buying drugs from Canada on the Internet—that there are no controls in place and that they may not be safe. I’ve found that many of these drugs, whether purchased in the US or Canada, are made down the street at a factory in Juarez, Mexico. Read more
Porcelain Laminate Veneer on a Highly Discoloured Tooth: A Case Report
The biomimetic characteristics of porcelain veneers make them useful for managing esthetic problems and minimizing dental tissue reduction. This detailed description illustrates these advantages in the restoration of a single discoloured tooth. Read more
Our Global Connection
CDA’s ongoing involvement with the FDI World Dental Federation culminates each year with participation at the FDI Congress. This year’s event included discussions regarding a United Nations policy on the mining of mercury that could have an impact on the availability of dental amalgam worldwide. Read more
Study Examines BPA in Dental Materials
An article published in Pediatrics assessing the benefits and potential health risks of dental materials that may contain bisphenol A (BPA) has generated extensive media coverage in the United States. Read more
Factors Affecting the Energy Delivered to Simulated Class I and Class V Preparations
The energy delivered by a light curing unit in a simulated clinical environment was affected by the operator’s technique, the choice of light curing unit and the location of the tooth preparation. Read more
Light Energy Matters
The energy delivered by a light curing unit is key to the success of a resin restoration. Four variables determine how long a curing light should be used to adequately cure a resin: curing light design and condition; technique used by the operator; type and location of the restoration; and the energy requirements of the resin used. Read more
Comparative Translucency of Esthetic Composite Resin Restorative Materials
The translucency of 39 composites representing various shade-and-translucency combinations was measured. In general, “opaque” and “dentin” composites had low translucency, “universal” or “body” composites had intermediate translucency, and “enamel” composites had high translucency. Read more
JCDA Interview: When Price Becomes the Fundamental Issue
Bernie Teitelbaum is executive director of the Dental Industry Association of Canada (DIAC). In this JCDA interview, Mr. Teitelbaum addresses the many factors that can affect the price of dental equipment and materials in Canada, including the illicit “grey market” trade. Read more
Update on Dental Amalgam Waste Requirements
Environment Canada published a Final Notice in the Canada Gazette on May 8, 2010, that will require some Canadian dental offices to prepare and implement a pollution prevention (P2) plan regarding mercury releases from dental amalgam waste. Read more
Case Report on Suspected Association of Denture Creams and Neuropathy
Health Canada published a case presentation relevant to Canadian dentistry in the January 2010 edition of its Canadian Adverse Reaction Newsletter. The case discusses the potential risks of neurologic disease associated with the excessive use of denture adhesive creams. The case is reprinted in its entirety below. Read more
Oral Health Research at Dalhousie: A Picture of Diversity and Collaboration
With an exponential growth in research activity over the last decade, Dalhousie University’s faculty of dentistry approaches its 100th anniversary sporting a rich and diverse research environment. Read more
