000367

66 period prior to dentition it will be remarked that the mouth of the infant is less moist than is that of the adult; whilst  1 as dentition approaches the saliva generally flows in considerable quantity from the infant’s mouth. As the period of dentition approaches, it will be noticed that the great‑ ly increased alveolar processes present on their summits uneven elevations like mounds or hillocks  2 . The deciduous teeth are the frst set and are also known as milk or tempo‑ rary ones. There are twenty of them; ten in each jaw with fiv on each side of the upper jaw and the lower one: two incisors, one canine (cuspid) and two molars. The order and periods in which the temporary teeth are erupted are subject to great variation. Permanent teeth are the second and fial set. There are thirty-two of them; sixteen in each jaw, eight on each side. Like deciduous teeth, the eight ones on each side of both jaws have the same names: two incisors, one canine (cuspid), two premolars and three molars. The frst permanent tooth is the frst molar, and it generally makes its appearance  3 between the years of 6 and 7. Notes 1 whilst – в то время (= while) 2 like mounds or hillocks – как возвышенности или бугорки 3 it makes its appearance – он появляется 21. Answer the questions: 1. What shall we see if we examine the mouth of an infant? 2. What can you say about the mouth of an infant when the period of dentition approaches? 3. How many temporary teeth does a child have? 4. When do the frst permanent teeth appear? 22. Give a summary of the text. Reading 3 23. Learn these words from the Vocabulary List 3. Vocabulary List 3 common [ ’ k ɔ mən] a общий; широко распространенный; обычный average [ ’ ævərid ʒ ] a средний corresponding [k ɔ ris ’ p ɔ ndiŋ] a соответствующий commence [kə ’ mens] v начинаться subject [ ’ s ∧ bd ʒ ikt] a подверженный ( чему-л. ), склонный ( к чему-л. ) backwards [ ’ bækwədz] adv назад