grunching of food
Orthodontists are specialized dental professionals who work to straighten teeth. In fact, the name "orthodontist" literally means "one who straightens teeth". They perform their job through the use of braces, typically.
You tell them the truth - whether or not you have the stamina to perform the job.
what is the job of incisor teeth
Birds don't have teeth. the beak does that job.
It depends on the job.
You should not unless it is part of your job description. If it is part of your job description, you are required to perform CPR if someone needs it.
That is generally a job of a dental assistant to help clean teeth.
Email them
A dentist's job is described as a person that works with teeth and the mouth. A dentist also pulls teeth and fixes cavities.
His teeth
The shape of a protein allows it to perform its particular job.
They have front gnawing teeth designed for the job.