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XIV. Read and translate the text using a dictionary.

Periodontal and Oral Mucosa

The periodontium (peri -“around”, odontos - “tooth”) comprises the following tissues: gingiva, periodontal ligament, root cementum and the alveolar bone. Three of the periodontal tissues - the cementum, periodontal ligament and the alveolar bone are formed by cells which are contained in the dental follicle of a developing tooth. The fourth tissue component of the periodontium - gingiva is not developed from a dental follicle. The gingiva is, however, a tooth-related structure which grows in height with the erupting tooth.

The main function of the periodontium is to attach the tooth to the bone tissue of the jaws and to maintain the integrity of the surface of masticatory mucosa to the oral cavity. The periodontium, also called “the attachment apparatus” or “the supporting tissues of the teeth” establishes a development , biologival and functional unit which undergoes certain changes with age.

The oral mucosa (mucous membrane) is continuous with the skin of the lips and mucosa of the soft palate and pharynx. It consists of (1) masticatory mucosa which includes the gingiva and the covering of the hard palate, (2) specialized mucosa which covers the dorsum of the tongue and (3) the remaining part called the lining mucosa. Gingiva is that part of masticatory mucose which covers the alveolar process and surrounds the cervical portion of the teeth.

XV. Answer the questions to the text Periodontal and Oral Mucosa.

1. What does the word periodonium mean?

2. What tissues does periodontium comprise?

3. What is the main function of periodontium?

4. What does the oral mucosa consist of?

5. What is gingiva?

XVI. Make nouns from the given verbs:

to develop, to locate, to consider, to grow, to function, to attach, to describe, to use, to treat, to establish

Lesson № 9

Грамматика: словообразование, степени сравнения (повторение), парные союзы

Pathology of the Form and Structure of the Teeth

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

systemic and local conditions, abnormal, anatomical form, histological structure [histq’lOGikql], hyperplasia [,hQipq’pleiziq], hypoplasia [,hQipou’pleiziq], syphilitic stigma [,sifi’litik ‘stigmq], gestation [Ges’teisqn], proportional [prq’pLSqnql], gigantism [GQi’gqentizm], megadontism [,megq’dOntizm], microdontism [,mQikrq’dOntizm], etiological classification [,JTIq’lOGilql], malnutrition [,mqelnju’trisqn], postnatal [poust’neitl], in utero [in ‘jHtqrq]

II. Learn the following words:

instance [‘instqns] - пример, случай

to appear [q’piq] - появляться

to involve [in’vOlv] - поражать, вовлекать

to distinguish [dis’tiNgviS] - различать

frequent [‘frJkwqnt] - частый, распространенный

entire [in’tQiq] - весь, целый

hereditary [hi’reditqri] - наследственный

congenital [kqn’Genitl] - врожденный

to transmit [trqenz’mit] - передавать

germination [,Gemi’neiSqn] - раздвоение

fusion [‘fjHZqn] - слияние

concrescence [kOn’kresqns] - сращение

dens in dente - зуб в зубе

reverse [ri’vWs] - обратный, противоположный

dwarfed [dwLft] - карликовый

in spite of - несмотря на

dimension [di’menSqn] - размер, измерение