Bioactivity and Modern Dental Materials
|Presenter: Dr. Bob Lowe||Release Date: 8/11/21|
|Credits: 1 CEU||Expiration Date: 8/11/24|
|AGD Subject Code: 780|
|CE Supporter: Bisco|
For many years, bioactivity in dentistry has only been associated with fluoride release and the conversion of hydroxyapatite to its’ stronger form, fluorapatite. This conversion has helped to strengthen tooth enamel and make it more resistant to acid attack. So….what exactly does “bioactivity” mean in dentistry today? In addition to the effect of fluoride on healthy hydroxyapatite, the ability of a material to contribute calcium and phosphate ions to help rebuild demineralized dentin is the new paradigm. These new “smart” bioactive dental materials react to pH changes in the oral environment to elicit changes in the material and the tooth as well. Hence, “biomineralization” refers to the exchange of calcium and phosphate ions with the tooth substance forming new apatite, or in many cases, repairing existing demineralized apatite. This includes the precipitation of apatite crystals on the surface of the material in the presence of moisture (saliva). It’s not just about fluoride anymore. During this CE webinar, Dr. Lowe will discuss the utilization of these new bioactive materials in various restorative applications.
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