You are performing an oral exam on a your 21 year old patient who has been using smokeless tobacco for 4 years. What part of the patients oral cavity is especially important for you to examine?
1) the sun exposed areas of the patients cheeks
2) the inner aspects of patients lips and cheeks
3) any discoloration or pitting of the patients teeth
4) any plaque buildup along the patients gum line
5) patients posterior pharynx