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VII. Give the explanation of the following terms of Greek and Latin origin in English:

abnormality, hyperplasia, hypoplasia, malnutrition, gestation, microdontism, postnatally

VIII. Answer the questions.

1. What may affect the form and structure of the developing teeth?

2. What do abnormalities of anatomical form and histological structure of the teeth include?

3. What can result in dysplasia of the dental structures?

4. What may have effects on the deciduous teeth?

5. What is germination?

6. What is fusion?

7. What is concrescence?

8. What are dens in dente?

9. What are the other terms for hyperplasia?

10. What does hypoplasia result in?

IX. Translate the sentences into English.

1. На форму и строение зубов могут воздействовать как системные так и местные условия.

2. Инфекции или травмы могут привести к дисплазии.

3. Молочные зубы формируются в эмбриональном состоянии.

4. На формирование молочных зубов влияют наследственные и врожденные факторы, плохое питание и болезни матери во время беременности.

5. Гиперплазия может поражать или все или только отдельные зубы.

6. Дисплазия может поражать как молочные так и постоянные зубы.

7. Очень трудно установить причину неправильного развития зубов.

X. Give as many facts as possible to prove the following statements.

1. The developing teeth may be affected.

2. Different diseases may affect teeth.

XI. Read the text and retell it.

Dental Anomalies

An anomaly is a deviation from normal usually related to embryonic development that may result in the absence, excess or deformity of body parts. Dental anomalies are most often caused by hereditary factors (gene related) or by developmental or metabolic disturbances. While more anomalies occur in the permanent than primary dentition and in the maxilla than the mandible it is important to remember that their occurrence is rare. For example, only 1-2% of the population have some form of anodontia (one or more missing teeth), while another 1-2% have supernumerary (extra) teeth.

Familiarity with dental anomalies is essential to the clinic practice of dentistry and dental hygiene. Understanding the etiology (causes) of the anomaly is important in determining the course of treatment. Additional information related to the etiology of the following anomalies is found in the study of both oral histology, embryology and oral pathology.

Lesson 10

Грамматика: глагол to fail, функции one, союзы whether, if

Abnormalities in the Number of Teeth

I. Read the following words and word combinations of the Greek and Latin origin and give their Russian equivalents:

calcification process [‘kqelsifi’keiSqn ‘prousqs], traumatism [‘trLmqtizm], normal position, dental follicle [‘fOlikl], obstruction [qb’strAkSn], associated [q,souSi’eitid], individual [indi’vidjuql, extremely [ikst’rJmli], dental literature [‘litqrqCq], radiography [,reidi’Ogrqfi]

II. Learn the following words:

to erupt [i’rApt] - прорезываться

germ [GWm] - зачаток (зуба)

to remove [ri’mHv] - удалять, очищать

to extract [irs’trqekt] - удалять (зуб)

incarceration [in,kRsq’reiSqn] - задержка прорезывания

retention [ri’tenSn] - задержка

impaction [im’pqekSqn] - задержка прорезывания

heredity [hi’rediti] - наследственность

generation [,Geni’reiSqn] - поколение

influence [‘influqns] - влияние

rare [rFq] - редкий

frequent [‘frJkwqnt] - частый, распространенный

aid [eid] - помощь

evident [‘evidqns] - явный, очевидный

apparent [q’pqerqnt] - видимый, явный, очевидный

to be due to [djH] - обуславливаться