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Full-Text Articles in Dental Materials

Bisphenol A Blood And Saliva Levels Prior To And After Dental Sealant Placement In Adults, Joyce Marie Downs Jul 2008

Bisphenol A Blood And Saliva Levels Prior To And After Dental Sealant Placement In Adults, Joyce Marie Downs

Dental Hygiene Theses & Dissertations

Placement of pit and fissure dental sealants is an effective therapy for tooth decay prevention and is widely accepted as a standard of care throughout the United States. Pit and fissure dental sealants (sealants) are manufactured using the resin component of composite dental materials, formed by reacting glycidyl methacrylate with bisphenol A. Bisphenol A (BPA) is a hormonally active, synthetic chemical that is part of a broad group of chemicals known as endocrine disrupting compounds, xenoestrogens, which mimic bioactivity of estrogen. This study measured BP A in saliva and blood after the placement of a widely used, pit and fissure …


In Vitro Comparison Of 360° Unirotational Disposable Prophylaxis Angles Versus 90° Reciprocating Disposable Prophylaxis Angles On Spatter During Rubber Cup Polishing, Kelly Marie Schulz Apr 2008

In Vitro Comparison Of 360° Unirotational Disposable Prophylaxis Angles Versus 90° Reciprocating Disposable Prophylaxis Angles On Spatter During Rubber Cup Polishing, Kelly Marie Schulz

Dental Hygiene Theses & Dissertations

The purpose of this in vitro study was to compare the traditional 360° unirotational disposable prophylaxis angle (DPA) to a 90° reciprocating DPA in terms of spatter production. The 2x3x3 factorial design involved: 2 types of DP As x 3 types of prophylaxis pastes (fine, medium and coarse) x 3 dental handpiece revolutions per minute (rpm) settings (1500, 2000, and 3000). The eStylus'™ operated the DP As under controlled speeds. Using a mounted dental manikin, 90° reciprocating DP As and 360° unirotational DP As were evaluated for spatter production with the use of prophylaxis pastes of various grits in 270 …