A dental professional needs to check carefully for any palpable nodes of the head and neck during an extraoral examination BECAUSE the palpable lymph nodes may help determine where a disease process is active.

Question

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The statement and reason are both correct and related. Checking for palpable nodes during an extraoral examination is important because lymph nodes may enlarge in response to infection, inflammation or malignancy. The location and characteristics of the palpable lymph nodes can help determine the possible site and extent of the disease process. Therefore, it is important for a dental professional to carefully examine for any palpable nodes of the head and neck during an extraoral examination.

A Dental Professional Needs to Check Carefully for Any Palpable