dislocation of a joint

molar tooth

a stereotypical pattern, conventional routine, or an old way of doing things

premolar tooth (immediately behind canine teeth in some mammals)

not following the beaten track; possessing a unique or unconventional style, especially in literature or art

a bowl-shaped container made of stone, used for pounding or grinding items such as grain or medicine with a pestle.

a bowl-shaped container used for grinding, crushing, or pounding medicinal substances or ingredients.