1. The absence of deciduous teeth is occasionally observed.
2. In some cases incarceration does not cause any apparent discomfort to the patient.
3. The absence of the complete dentition occurs extremely rare.
4. Non-eruption of a calcified tooth is a case of incarceration.
5. The influence of heredity in these abnormalities of teeth number is well shown.
XII. Translate the following sentences.
1. .
2. , .
3. .
4. .
5. , , , .
6. .
7. .
8. .
XIII. Read and translate the text using a dictionary.
Text B. Absence of Teeth
Total Anodontia. True anodontia is the total congenital absence of a set of teeth. Total anodontia is characterized by the absence of the entire primary and secondary dentitions and is extremely rare. It is most often associated with a generalized congenital deformation (a sex-linked genetic trait) such as the abnormal development of the ectoderm or outer embryonic cell layer. Faulty ectodermal development further affects such structures as hair, nails, sebaceous and sweat glands and salivary glands.
Partial Anodontia. Partial anodontia, also referred to as congenitally missing teeth, involves one or more missing teeth from a dentition. Though not proven to be a hereditary trait, tendencies toward missing the same tooth do run in families. Some observers state that missing teeth follow evolutionary trends in that the teeth most commonly missing from the dentition (third molars) are those that are most expendable in terms of their role in oral function. On the opposite, the most stable teeth in the permanent dentition, the canines, are the least likely to be absent from dentition.
Lesson 11
: -ing forms, ,
Toothache
I. Read the following words and word combinations of the Greek and Latin origin and give their Russian equivalents:
caries and periodontitis [kFqriqs, peri,oudqntQitis], embryo [embriou], indicate [indikeit], balanced diet [bqelqnst dQiqt], calcium preparation [kqelsiqm,prepqreisqn], dental hygiene [hQidgJn], orthopedics [,LToupediks], physiotherapy [,fiziqTerqpi], carbohydrates[,kRbouhQidreits]
II. Learn the following words:
pleasant [plezqnt] -
slight [slQit] - , ,
cavity [kqeviti] -
inflammation of the gum [,inflqmeiSn gAm] -
complaint [kqmpleint] -
|
|
|
to complain of -
sugar [Sugq] -
flour [flQuq] -
hereditary [hireditqri] -
sweets -
to cut out -
to coincide [,kouinsQid] -
to avoid [qvoid] -
incidence [insidqns] -
fluorine [fluqrJn] -
content [kOntqnt] -
nursing mothers [nWsiN] -
to add -
socket - ,
advanced cases [qdvRnst] -
III. Read and translate the following word combinations:
tooth cavity, dental complaints, under-forties, over forties, refined sugar, hereditary factors, fluorine content, drinking water, caries prevention, balanced diet, expectant and nursing mothers, calcium preparations, dental hygiene, milk teeth, anti-inflammatory therapy, advanced cases
IV. Give the comparative and superlative degrees of the adjectives:
pleasant, common, normal, useful
