俗称门牙。位于口腔前部的上、下颌骨,呈弧形排列,分为上颌中切牙,上颌侧切牙,下颌中切牙和下颌侧切牙,共八颗切牙,唇面牙冠呈楔形,牙根单一,切缘较薄,故其主要功能为咬断食物,以利臼齿的咀嚼。乳牙于6岁左、右更换恒齿。
n. incisor
misc. incisor teeth
... incisor tooth切牙;门齿 incisor lobe[昆]叫切齿叶;其前端有切齿叶 lateral incisor侧切牙 ...
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... incisor ridge 释义:切嵴 incisor teeth 释义:切牙,门牙,门齿 incisor crest 释义:切牙嵴 ...
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...切牙( 牙的形态特点和功能特性分类: 根据牙的形态特点和功能特性,恒牙分为切牙、尖牙、前磨牙和磨牙四组。 1.切牙(incisor) 位于口腔前部,口腔内上、下、左、右共8个切牙|育,牙冠由唇面、舌面、近中面和远中面四个轴面和一个切嵴组成。
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切牙槽钳 alveolar cutting forceps
下颌切牙 mandibular incisor ; lower incisor
侧切牙 lateral incisor
切牙孔 [解剖] incisive foramina
上切牙 Upper incisors
上颌中切牙 maxillary central incisor ; The Pemanent Maxillary Central Incisor
中切牙 central incisor ; lower central incisor
下颌中切牙 mandibular central incisor
下颌侧切牙 mandibular lateral incisor
恒牙萌出于6岁左右,开始于第一恒磨牙以及下颌第一中切牙。这个过程一直持续到将近21岁。
Permanent teeth begin appearing around age 6, starting with the first molars and lower central incisors. This process continues until approximately age 21.
尖牙改形替代侧切牙是安全可行的。
The procedure of reshaping canines to resemble the missing lateral incisors is safe clinically.
上颌中切牙的短根牙比例相当高。
The rate of short root was high in maxillary central incisors.
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