primary teeth 中文意思是什麼
primary teeth
解釋
暫牙, 乳牙-
The eruption time of the permanent teeth and the shedding time of the primary teeth vary from child to child
另外，換牙時間的遲與早因人而異，即使與一般同齡孩子比較，相差一年也算正常。 -
The permanent incisor will assume normal position and it is not necessary to extract the mobile primary incisor if there is enough room for the permanent incisor. delayed eruption of permanent teeth
一般來說，乳齒會因為牙根收縮而變得松動，跟著自然脫落，這是正常現象，不會影響恆齒的生長，所以不一定要拔掉松動的乳齒。 -
The six - year molars are the first permanent molars which erupt at the age of six. there are a total of four six - year molars, one in each quadrant, situated right behind the last primary molars. the four molars are vital to the normal occlusion of permanent teeth
小朋友六歲時，他下頜乳臼齒後面長出大牙齒，即第一大臼齒，共有四隻，位置在口腔四端乳臼齒的後面，由於通常在六歲左右長出，故稱為六歲齒。 -
Although all 20 primary teeth usually appear by age 3, the pace and order of eruption varies
雖然20顆乳牙一般全部萌出在3歲左右，但是萌出的步驟和順序是多種多樣的。 -
As early as 4 months, the first primary, or baby teeth, to erupt through the gums are the lower central incisors, followed closely by the upper central incisors
最早在4個月的時候，首先萌出的是下頜第一乳切牙，緊接著萌出的是上頜中切牙。 -
The permanent teeth may appear darker in colour when compared with the primary teeth because the enamel of the permanent teeth is more highly mineralized and more translucent than that of the primary teeth, allowing the underlying yellow - coloured dentine to show through
由於恆齒的琺瑯質鈣化得比較好，透光度也比較高，光線可以把琺瑯質下層黃色的象牙質呈現出來，恆齒看起來也就比乳齒黃。不過，在某一些情況下，牙齒是會變色的。 -
This product is a mini camera microsope with high cold brightness leds, it can magnify objects up to 30 ~ 50 times if extra lens are used, it can be used for shooting the teeth, hairs and skin in microscope, furthermore in other areas, such as maintaining machinery, inspecting tiny electronic components or repairing pcb board, and also used to observe insect, plant and flower in primary and junior high school teaching
本產品是帶冷光led燈照明的微型攝影機，可將被攝物體放大30倍以上（用附加鏡頭可以放大50倍） ，廣泛適用於口腔、牙齒、頭發、皮膚等部位的顯微放大攝影，同時可應用於工業領域，如機械維修、微小電子元件的觀察、 pcb線路板的檢查等；還可以在中小學教學中用於觀察昆蟲、植物、花卉等。 -
Objective : to analyze the data of the permanent teeth caries and treatment needs of six age groups people in beijing with statistical methods which came from the second national oral health survey of china in 1995. method : the total sample of 12792 ( 8520 urban, 4272 rural ) for 6 age groups ( 5, 12, 15, 18, 35 - 44, 65 - 74 - year - old ) were examined. the diagnostic criteria recommended by the world health organization were used in this study ( oral health survey basic methods third edition, 1987 ). result : the dmf and dmft incidence of six age group in the urban was higher than that in the rural on the whole. the dental caries level of 12 - year - olds was very low. f percentage of 12 - year - olds was 15. 42 % ( urban ) and 3. 23 % ( rural ). the current situation of chinese dental care cannot meet the who objectives for the year 2000. conclusion : it pointed out that we should emphasize oral health education and enhance the consciousness of health care. since the treatments of caries became more complicated with the age, we should perform the primary oral health care in the early stage
目的:本文對1995年第二次全國口腔健康流行病學調查中，北京地區六個年齡組人群的恆牙患齲及治療需要情況進行統計學分析.方法:採用整群抽樣方法，對北京市六個年齡組的城鄉人群12792人（城市8520人，農村4272人）進行了口腔檢查，診斷標準根據世界衛生組織1987年第三版一書.結果:各年齡組的患齲率及齲均基本是城市高於農村， 12歲年齡組的患齲情況處于很低水平， 12歲年齡組恆牙充填率為15 . 42 （城）和3 . 23 （鄉） ，結論:本結果離2000年目標有一定差距，提示我們應加強口腔健康教育，提高居民口腔保健意識.另外，隨年齡的增長牙齒治療的復雜程度逐漸增高，因此，應在人群中開展初級口腔衛生保健，做到早發現，早診斷，早治療 -
At the time of birth, the crowns of the primary teeth ( baby teeth ) are almost complete and the chewing surfaces of the permanent molars are forming
在出生的時候，第一套牙（乳牙）的牙冠已基本發育完全，恆磨牙的咀嚼面也已形成。 -
Born in 2000, dai yichen is a primary student in shanghai. he is talented in violin, singing and dancing. he cut his teeth on movies when he was six
2000年生，現就讀于上海市高安路一小，擅長小提琴、歌舞， 6歲開始接觸影視拍攝。 -
Early loss of baby teeth due to decay or infection, may cause primary teeth to shift to fill the gap
牙齒過早開始脫落多是由於腐蝕或是感染，這可能導致乳牙移行填補空缺。
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