Limitations of using visual-tactile exams (cont.)
	n Protocol developed primarily to measure dental caries – Dental caries continues to be the most prevalent of all oral conditions – However its prevalence and severity has declined dramatically during the past 30 years • No indication will return to the previous levels of disease n Because dental caries no longer so universal – need surveillance tools to identify, at pop level, those still affected or at risk of dental caries – and tools to measure other oral conditions and their risk factors
			20