Завдання для самостійної роботи студентів (срс)

Перекладіть наступні словосполучення: емаль, цемент та дентін пульпа та пульпова камера верхівковий отвір компактна та губчаста кістка чутливість до болю Дайте відповідь на наступні питання: 1. What are the teeth divided into according to their form and function? 2. What parts does a tooth consist of? 3. What layers is every tooth composed of? 4. What is cementum? 5. What does pulp contain? ІІІ. Розкрийте поняття:дентін, цемент, пульпа, емаль

Types of Teeth

Exercise 1. Topic vocabulary:

canine	[ˈkeɪnʌɪn]	ікло
chisel	[ˈtʃɪz(ə)l]	зубило; долото
counterpart	[ˈkaʊntəpɑːt]	копія; дублікат;
cusp	[kʌsp]	кінчик (зуба), бугорок
divergent	[dʌɪˈvəːdʒ(ə)nt]	який відрізняється, відмінний
gripping	[ˈɡrɪpɪŋ]	схопити; стиснути,міцно тримати
incisor	[ɪnˈsʌɪzə]	різець, передній зуб
mesial	[ˈmiːzɪəl]	срединий
oblique	[əˈbliːk]	косий
ridge	[rɪdʒ]	край

Exercise 2. Form adjectives with the suffixes -al and translate them.

Model:arterial pressure – артеріальний тиск

Conus, center, palate, myocardium, surgery, intestine, bacteria, nutrition, abdomen.

Exercise 3. Give adjectives to the nouns used in dentistry:

Model: lung – pulmonary

cheek – membrane - middle -

palate – mouth – side -

tooth - tongue – lip -

gum - alveolus – neck -

Exercise 4. Read and translate the word-combinations into your native language.

Flattened chisel-shaped crowns, biting, gripping and chewing, mastication, counterpart, the longest root of the whole dentition, buccal and palatal,cusps of upper premolars, the longest root of the whole dentition, an extra cusp on their mesio-palatal surface,frequently fused together,divergentdeciduous molars, bulbous crown.

Exercise 5. Read and translate the text.

Types of teeth

Depending on the form and function our teeth are divided into 4 groups. They are incisors (used for biting), canines (cuspids) that are used for gripping, premolars and molars which are used for chewing (mastication). The clinical formula of teeth is the following: 2 incisors, 1 cuspid, 2 premolars and 3 molars.

Wisdom teeth, also known as third molars, are the last set of teeth to erupt in your mouth. This generally occurs between the ages 17 and 25, a time of life that has been called the “Age of Wisdom”.

Incisors have one root and flattened chisel-shaped crowns. The upper crowns are much wider than their lower counterparts.

The upper lateral incisor crown is smaller than the upper central; out the lower lateral crown is slightly larger than the lower central. They have large conical crowns and one long root. Canines are relatively long, pointed teeth that are situated between the incisors and the premolars. The upper canine is larger than the lower one and has the longest root of the whole dentition.

The upper first premolar has two roots, one buccal and one palatal. The remaining premolars have one root. Each premolar has two cusps, one buccal and one palatal or lingual that is why they are also called bicuspids.

The cusps of upper premolars are much bigger than lowers and are almost equal in size. The lingual cusp of lower premolars is much smaller than the buccal cusp.

Upper molars have three roots, two buccal and one palatal. The buccal roots are mesial and distal. Lower molars have four cusps, two buccal and two palatal. Their crowns are characterized by an oblique ridge which runs from the mesio-palatal cusp to the disto-buccal cusp. Upper first molars often have an extra cusp on their mesio-palatal surface.

Lower first molars have five cusps, three buccal and two lingual. Lower second molars have four cusps, two buccal and two lingual.

First molars are the largest teeth of all. Third molars are very variable in size and number of roots and cusps. Usually they are the smallest molars and their roots are frequently fused together.

Deciduous molars are like miniature permanent molars. They have the same number of roots but their crowns are much whiter and more bulbous than permanent ones. To provide space for the developing premolars, the roots of deciduous molars are more divergent than those of permanent molars.

Exercise 6. Answer the questions to the text.

What are the teeth divided into according to their form and function?

How many roots do incisors have?

What tooth has the longest root in the whole dentition?

How many roots does the upper 1st premolar have?

What teeth have tree roots?

How many roots do molars have?

7. How do the roots of deciduous teeth look like?

8. Roots of what teeth are frequently fused together?

9. What teeth are called wisdom teeth?

10. What is the clinical formula of the teeth?

Exercise 7. Find the terms denoting parts and types of teeth in the following.

1. iengumscarve 2. wisrootstooth 3. canimolarpid 4. bipremolarce 5.setdentitionte 6. cawisdomrot tooth 7. tisincisormty 8. semcaninepy

a) Firm tissue around the base of the teeth b) it is covered with a thin layer of bone, and it is inserted into sockets in the bone of the jaw. c) a tooth with at least 3 roots and a large crown. d) it is located between the canine and the molar. It has at least two cusps. e) set of teeth f) a tooth that erupts between 14 and 25 years. g) A narrow-edged tooth at the front of the mouth, adapted for cutting. In humans there are four of these teeth in each jaw. h) a tooth having one point and the longest root.