Plaque Removal by Young Children Using Old and New Toothbrushes
W.H. van Palenstein Helderman1,*,
M.M. Kyaing2,
M.T. Aung2,
W. Soe2,
N.A.M. Rosema3,
G.A. van der Weijden3, and
M.A. van t Hof1
1 WHO Collaborating Centre 309 for Oral Health Care Planning and Future Scenarios, and Department of Preventive and Restorative Dentistry, Radboud University Nijmegen Medical Centre, Nijmegen, PO Box 9101, 6500 HB Nijmegen, The Netherlands;
2 Oral Health Unit, Department of Health, Yangon, Burma; and
3 Department of Periodontology, Academic Center for Dentistry Amsterdam (ACTA), The Netherlands

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Figure. A new toothbrush and 9 randomly selected 14-month-old toothbrushes. Bar = 1 cm.
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