Marchesan JT et al.  A vast majority of the dental profession stand behind the recommendation that oral hygiene instructions should include both toothbrushing and interdental cleaning. The biofilm is central in the development of both periodontal disease and caries and needs to be removed to prevent these diseases successfully.  This piece of research is based on data from the National Health and Nutrition Examination Survey, a register representing the civilian, noninstitutionalized population in the United States. Adults 30 years and...