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A Comparison of Maximum Perioral Muscle Forces in North American Blacks and Whites.
American blacks have larger teeth than whites, but they less frequently exhibit crowding—apparently because of larger arch dimensions. This study quantified differences in arch size and shape in t...
Objective: To test the null hypothesis that American blacks do not have a higher frequency of extra permanent teeth than whites.Materials and Methods: Panoramic radiographs of adolescent orthodontic p...
Biological differences exist in the body composition of blacks and whites. We reviewed literature on the differences and similarities between the 2 races relative to fat-free body mass (water, mine...

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