Answer:

premolar

Answer	Crossword Clue
PREMOLAR	Canine neighbor
PREMOLAR	Bicuspid
PREMOLAR	Type of tooth

PREMOLAR	Bicuspid.
PREMOLAR	Certain tooth
PREMOLAR	Tooth next to a canine

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.