The area where two teeth are touching is known as the surface.
a. abutment
b. proximal
c. central
d. lingual

The correct answer is B. Proximal

Explanation:

Tooth have five surfaces distal, facial, Incisal, Lingual and mesial. Mesial surface is the tooth surface which is present towards the front portion and lingual surface towards back portion of mouth.

So the area where mesial surface of one tooth touches the lingual surface of another tooth is called proximal surface. There is a point where the two teeth that are adjacent touches each other called contact point of proximal surface.  It becomes wider due to chewing and grinding with time.

answer:

to with mild choking in an adult or child over 1 year old: encourage them to keep coughing to try to clear the blockage. ask them to try to spit out the object if it's in their mouth. don't put your fingers in their mouth to them as they may bite you accidentally.

explanation: