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Dental and Oral Health Center

"Eggstra Whitening" science fair project



I am doing a science fair project on which toothpaste will whiten an egg the best. What would you suggest for the eggs? Should I use white eggs or brown? And why?


I would suggest brown eggs because they are already "stained".  If you used white eggs, you would have to stain them yourself such as soaking them in tea.  The brown eggs will work just fine.

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Response by:

Michele P Carr, RDH,  MA Michele P Carr, RDH, MA
Associate Professor of Dental Hygiene
Associate Professor of HS Nursing Quality & Research
College of Dentistry
The Ohio State University