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Full-Text Articles in Medicine and Health Sciences
In Vitro Evaluation Of The Reciprocating Disposable Prophylaxis Angle Versus The Rotating Disposable Prophylaxis Angle In Extrinsic Stain Removal Effectiveness, Inma Lacross
Dental Hygiene Theses & Dissertations
The purpose of this study was to determine the extrinsic tooth stain removing effectiveness of a 90° counter-rotating disposable prophylaxis angle (DPA) with rubber cup as compared to the traditional 360° unirotational DPA with rubber cup. Four randomly assigned groups of cleaned, sterilized, extracted human teeth, artificially stained with coffee, tea, tobacco, and red wine were polished on the buccal and lingual surfaces using one of the two rubber cup DP As under study. Each dependent variable (four different stain types) was tested four times with each prophylaxis angle, using each of the four prophylaxis paste conditions, and three different …
Effectiveness Of Chlorhexidine-Coating In Controlling Bacterial Quantity On Toothbrush Filaments, Lisa A. Turner
Effectiveness Of Chlorhexidine-Coating In Controlling Bacterial Quantity On Toothbrush Filaments, Lisa A. Turner
Dental Hygiene Theses & Dissertations
The purpose of this study was to determine if a significant difference exists in the effectiveness· of chlorhexidine-coated nylon brush filaments as compared to uncoated nylon filaments in reducing the quantity of bacteria. Methods: An IRB-approved, two-group, double-blind, randomized, post-test only design was conducted. Sixty-four individuals were randomly assigned to two equal groups of 32. After using the control or experimental toothbrushes for 30-days, participants returned the toothbrushes to the researchers in sealed autoclave bags. In the laboratory, microorganisms were detached from the toothbrush filaments by sonification and vortexing, then plated on both selective and non-selective media at various dilutions …