Eating, biting, and picking teeth

жевђть/разжевђть, прожевђть to chew
кусђть [no Pf.] to bite
жевђть/разжевђть Na зубђмиi to chew N
NB In the above expression and in the other expressions for "biting" shown below, the word зџбы in the Instrumental case is more likely to be used with a modifier:
Ћн мќгом разжевђл жёсткое мїсо своќми молодІми, крљпкими зубђми и попросќл чегћ-нибудь ещё. He quickly ground up the tough meat with his young strong teeth and then asked for more food.
грІзть, разгрызђть/разгрІзть Na зубђмиi to gnaw N
кусђть [no Pf.] Na зубђмиi to bite N, to take bites of N
откџсывать/откусќть Na зубђмиi to bite off N
кусђть/укусќть Na to bite N
Ребёнка укусќла собђка, и емџ пришлћсь дљлать привќвки от бљшенства. The child was bitten by a dog and had to undergo a series of rabies shots.
покусђть [no Impf.] Na;
искусђть [no Impf.] Na
to attack (by biting) N
Ребёнка покусђла собђка, и емџ пришлћсь дљлать привќвки от бљшенства. The child was attacked by a dog and had to undergo a series of rabies shots.
впивђться/впќться зубђмиi в Na;
вонзђть/вонзќть зџбыa в Na
to bite into N, to sink one's teeth into N
Ћн впќлся зубђми в свљжий батћн. He sank his teeth into a fresh loaf of bread.
хрустљть/захрустљть [Pf-begin]: Nn хрустќт на зубђхp N feels gritty
— ТІ плћхо вІмыла салђт, песћк на зубђх хрустќт. "You didn't wash the lettuce well enough — it's gritty." (lit. "the sand crunches in the teeth")
ковырїть [no Pf.] в зубђхp to pick one's teeth
Пћсле обљда ћн нђчал ковырїть в зубђх. After dinner he began to pick his teeth.
NB The phrase ковырїть в зубђх usually expresses a disapproval of the action. The expression чќстить зџбы, below, is neutral:
чќстить/вІчистить зџбыa (Ni) to clean one's teeth (with N)
Пћсле обљда ћн нђчал чќстить зџбы спќчкой. After dinner he began to clean his teeth with a match.
NB The phrase чќстить зџбы without a reference to an implement means "to brush one's teeth"; a toothbrush is assumed. The noun in the Instrumental case suggested above is usually some other implement, such as a toothpick, a matchstick, etc.
зубочќстка toothpick