CATEGORY AUSTRALASIAN DENTIST 61 Objective: Two toothbrushes were evaluated with a laboratory method for the ability to remove artificial plaque deposits around interproximal sites (interproximal access efficacy, IAE) at the gingival margin (gingival margin cleaning, GMC), and below simulated gingivae (subgingival access, SA) using clinical toothbrushing motions under wet brushing conditions. Methodology: The toothbrushes tested were Meridol or an ADA reference standard. The Meridol J Clin Dent. 2003;14(1):19-22. Laboratory evaluations of two toothbrushes for removal of artificial plaque above, around and below the gingival margin By Yankell SL, Shi X, Emling RC. University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA. SLYKRY@AOL.com toothbrush has a flat profile and contains double-tapered filaments. The ADA reference standard also has a flat profile, with traditional end-rounded bristles. Both toothbrushes have a soft texture. Six toothbrushes of each design were evaluated four times for a total of 24 assessments. Results: The Meridol toothbrush had significantly (p < 0.001) higher mean IAE, GMC and SA values compared to the ADA reference standard toothbrush tested. Conclusion: From these results, the Meridol toothbrush with tapered bristles is more likely to be effective in clinical studies on plaque removal compared to other manual toothbrushes with rounded bristles in a flat head design, that are similar to the ADA reference standard toothbrush. Publication Types: Evaluation Studies PMID: 12619266 [PubMed - indexed for MEDLINE] The purpose of this in vitro study was to determine how two toothbrushes, with a combination of a tapered-end and roundend bristle design (Group A), compared to a conventional toothbrush with only rounded-end bristles (Group B) for cleaning in simulated occlusal fissures on a brushing machine. The fissure width at the surface was 200 microns and then tapered down to the fissure base depths of 230 and 400 microns. The toothbrushes were positioned 90 or 180 degrees to the fissure groove surface on the model, and a 200 g force J Clin Dent. 2002;13(6):225-7. Evaluation of tapered-end toothbrush bristles regarding efficacy of access to occlusal fissures By Hotta M, Sekine I, Imade S, Sano A. Department of Endodontics and Operative Dentistry, Asahi University School of Dentistry, Gifu, Japan. w7mhotta@dent.asahi-u.rc.jp was applied to the brush head. The fissure model received 190 strokes over one minute by the brushing machine. The removal of an artificial plaque substance in the fissure model was measured by a two-dimensional analyzing system. For each combination of the fissure depth versus bristle angle versus brush head configuration variables, five specimens were measured and means were determined. The results were statistically analyzed using a three-way ANOVA followed by Scheffe's test (alpha = 0.05). The results demonstrated that the combination of tapered and round-end bristles (Group A brush) was statistically significantly (p < 0.01) more effective in removing the artificial plaque material on the fissure area than the Group B brush for specific types and brush stroke directions. Publication Types: Evaluation Studies PMID: 12518495 [PubMed - indexed for MEDLINE] CLINICAL Proudly distributed by amalgadent.com.au Light Cured Veneer Cement Valid to 30/09/2026 �Shade Stability �8 Esthetic Shades �Low FilmThickness �Compatibility �Easy Clean-Up Your 1st choice for veneer cementation Choice2 Kit Offer Purchase Choice2 Kit for $550 & Receive FREE VAK-TAC Veneer Placement Instrument worth $200.
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