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Replicate single-use comparative study of plaque removal with two contemporary manual toothbrushes.
Terézhalmy GT, Walters P, Bartizek RD, Grender JM, Biesbrock AR. Terézhalmy GT, et al. Among authors: walters p. Am J Dent. 2009 Jun;22(3):189-92. Am J Dent. 2009. PMID: 19650603 Clinical Trial.
Oral-B Advantage 123 was significantly better than Colgate 360 degrees at reducing whole mouth (P = 0.006), gingival margin (P = 0.010) and approximal (P = 0.040) plaque scores....
Oral-B Advantage 123 was significantly better than Colgate 360 degrees at reducing whole mouth (P = 0.006), gingival margin (P
Comparative clinical trial of two antigingivitis mouthrinses.
Witt JJ, Walters P, Bsoul S, Gibb R, Dunavent J, Putt M. Witt JJ, et al. Among authors: walters p. Am J Dent. 2005 Jul;18 Spec No:15A-17A. Am J Dent. 2005. PMID: 16178131 Clinical Trial.
Dental plaque removal with a novel battery-powered toothbrush.
Biesbrock AR, Walters P, Bartizek RD, Ruhlman D, Donly KJ. Biesbrock AR, et al. Among authors: walters p. Am J Dent. 2002 Apr;15(2):77-80. Am J Dent. 2002. PMID: 12092995 Clinical Trial.
These results were not statistically significant (P=0.645). A 95% one-sided upper confidence limit on the Ultra Plaque Remover minus SpinBrush difference in amount of plaque removed was calculated as 9.4% of the Ultra Plaque Remover adjusted mean. ...These results were als …
These results were not statistically significant (P=0.645). A 95% one-sided upper confidence limit on the Ultra Plaque Remover minus …
The prevention of induced stain using two levels of sodium hexametaphosphate in chewing gum.
Bartizek RD, Walters P, Biesbrock AR. Bartizek RD, et al. Among authors: walters p. J Clin Dent. 2003;14(4):77-81. J Clin Dent. 2003. PMID: 14666737 Clinical Trial.
The difference between "no gum" and placebo gum was statistically significant (p = 0.017), and represented a 12.4% reduction in tooth darkness for the placebo gum treatment. ...Both the 2.0% and 3.0% Na Hex gums resulted in teeth that were statistically significantly less …
The difference between "no gum" and placebo gum was statistically significant (p = 0.017), and represented a 12.4% reduction in tooth …
Plaque removal efficacy of oscillating-rotating power toothbrushes: review of six comparative clinical trials.
Grender J, Williams K, Walters P, Klukowska M, Reick H. Grender J, et al. Among authors: walters p. Am J Dent. 2013 Apr;26(2):68-74. Am J Dent. 2013. PMID: 24073528 Review.

Adjusted mean RMNPI or TMQHPI benefits favoring the O-R brush relative to the sonic brush control were collectively 18% to 34% greater on lingual surfaces (P < or = 0.044), 32% to 49% greater on lingual approximal surfaces (P < 0.001), and 32% and 31% greater

Adjusted mean RMNPI or TMQHPI benefits favoring the O-R brush relative to the sonic brush control were collectively 18% to 34% greater on li …
A novel power toothbrush with multi-directional, triple zone cleaning technology.
Mielczarek A, Klukowska M, Kaiser E, Stoerkel U, Mandl C, Walters P, Warren P. Mielczarek A, et al. Among authors: walters p. Am J Dent. 2012 Sep;25 Spec No A(A):3A-9A. Am J Dent. 2012. PMID: 23248892
Benefit of the power component of sonic and rotation-oscillation modes of action for plaque removal using power toothbrushes.
Williams K, Rapley K, Haun J, Walters P, Grender J, He T, Biesbrock AR. Williams K, et al. Among authors: walters p. Am J Dent. 2010 Apr;23(2):60-4. Am J Dent. 2010. PMID: 20608293 Clinical Trial.
This represents a statistically significantly (P<0.0001) greater plaque score reduction for the rotation-oscillation 'On' versus rotation-oscillation 'Off' treatment. ...This represents a nonsignificant (P=0.426) greater plaque score reduction for the difference …
This represents a statistically significantly (P<0.0001) greater plaque score reduction for the rotation-oscillation 'On' versus r …
Comparison of rotation/oscillation and sonic power toothbrushes on plaque and gingivitis for 10 weeks.
Williams K, Rapley K, Haun J, Walters P, He T, Grender J, Biesbrock AR. Williams K, et al. Among authors: walters p. Am J Dent. 2009 Dec;22(6):345-9. Am J Dent. 2009. PMID: 20178210 Clinical Trial.
The rotation/oscillation group had statistically significantly lower gingivitis scores (by 3.5%) and statistically significantly fewer bleeding sites than the sonic group (by 16.1%) with P = 0.038 and 0.028, respectively, at Week 10. Compared to baseline, only the rotation …
The rotation/oscillation group had statistically significantly lower gingivitis scores (by 3.5%) and statistically significantly fewer bleed …
A randomized 12-week study to compare the gingivitis and plaque reduction benefits of a rotation-oscillation power toothbrush and a sonic power toothbrush.
Goyal CR, Qaqish J, He T, Grender J, Walters P, Biesbrock AR. Goyal CR, et al. Among authors: walters p. J Clin Dent. 2009;20(3):93-8. J Clin Dent. 2009. PMID: 19711610 Clinical Trial.
RESULTS: In 171 evaluable subjects, gingivitis reduction benefits were significantly greater for the rotation-oscillation brush group than for those using the sonic toothbrush, with relative mean benefits favoring the rotation-oscillation brush of 29.4% for GBI and 8.2% for MGI a …
RESULTS: In 171 evaluable subjects, gingivitis reduction benefits were significantly greater for the rotation-oscillation brush group than f …
A study comparing the plaque removal efficacy of an advanced rotation-oscillation power toothbrush to a new sonic toothbrush.
Williams K, Rapley K, Huan J, Walters P, He T, Grender J, Biesbrock AR. Williams K, et al. Among authors: walters p. J Clin Dent. 2008;19(4):154-8. J Clin Dent. 2008. PMID: 19278087 Clinical Trial.
The difference between treatment groups was statistically significant (p = 0.003). CONCLUSION: The rotation-oscillation toothbrush delivered superior plaque removal by reducing plaque scores, on average, 12.1% more than the new sonic toothbrush....
The difference between treatment groups was statistically significant (p = 0.003). CONCLUSION: The rotation-oscillation toothbrush de …
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