お歯黒[ohaguro] tooth blackening
臼歯[kyuushi] molar
永久歯[eikyuushi] permanent tooth
奥歯[okuba] molars
下歯[shitaba] lower teeth

仮歯[kashi] false tooth
加工歯[kakoushi] dental bridge
義歯[gishi] artificial tooth
鋸歯[kyoshi] teeth of a saw
金歯[kinba] gold tooth

歯軋り[hagishiri] involuntary nocturnal tooth grinding
軋む[kishimu] to jar
軋る[kishiru] to creak
軋轢[atsureki] friction

軋みあう[kishimiau] to engage in (mutual) competition
軋り[kishiri] creaking
軋み[kishimi] creak