Which of the following is NOT one of the three regions of a tooth?

Common mental health problems in the geriatric population include all of the following EXCEPT:

A) affective disorders. B) post-traumatic stress disorder. C) depression. D) suicide.

Second degree burns to right palm due to lye. Patient was working at a factory when he accidentally spilled the lye on his hand. Subsequent encounter

a. T23.651D, T54.3X1D b. T23.651D c. T54.3X1D d. T23.651D, T554.3X3D