Презентация на тему Teeth

of vertebrates, and are used to rozkushuvannya chewing food,

and to attack and defense.

jaws and communicating with their connections, which are a

kind of shock absorbers during chewing. In 32 adult teeth: two incisors, one canine, two premolars and three molars on each side of each jaw.

tear food and lowercase molars crush and grind it.

Due to the increased surface grinding food digestive enzymes that facilitate digestion.

isolated crown, neck and root.

partially or completely protrudes above the gum after eruption.

External hard dental crown is covered with enamel, comprising a compound florets. Under it is a dense substance similar to bone (dentin). The root is surrounded by a layer of special material - dental cement, by which it is attached to the jaw bone

by loose connective tissue that contains blood vessels and

sensory nerves.

of bone tissue or teeth.

the bone or nadkostnytsi, leading to necrosis of bone

sections with subsequent absorption or rejection of dead mass and bone formation defect. Cavities can accompany some specific inflammatory processes (eg, tuberculosis, syphilis)