incisor [in'saizə]

incisor的基本解释

n.

门牙

incisor所属的单词分类

Dentist / 牙医 [143]

rubber bands  ·  permanent teeth  ·  adult teeth  ·  x-ray  ·  wisdom teeth  ·  tooth fairy  ·  oral surgery  ·  endodontics  ·  baby teeth  ·  caps

与incisor相关的网络例句 [注：此内容来源于网络，仅供参考]

The clinical characters of oligodontia concluded from this study are following:(1) There is significant difference that more teeth absent and more existent teeth anomalies in patients of oligodontia/S group than in patients of oligodontia/I group, and the peg-shaped upper lateral incisor is the most frequently affected teeth with shape anomaly.(2) Both of the two groups have no significant differences in number of teeth missing between maxilla and mandible as well as that between left and right side.(3) The distribution of teeth missing is bilateral symmetry in both groups, but the frequency of teeth lost are different: excluding the third molar, in oligodontia/I group, the lower second premolar is the most frequently congenitally missing tooth followed by the upper lateral incisor, while in oligodontia/S group, the most frequently missing teeth are mandibular canine and maxillary lateral incisor. Nevertheless, the first molars are the most stable teeth in both groups.(4) In oligodonita/I group, the mean mesiodistal dimensions of all type of existent teeth are significantly smaller than normal value. It is implied that oligodontia is not an isolated phenomenon, but is related to a complex of other dental changes.

对于口腔多个恒牙先天缺失的临床特点有以下初步结论：(1)综合征型先天缺牙患者较单纯型先天缺牙患者恒牙缺失数目更多，平均分别为23.9个和14.9个，且现存牙齿有更多的形态异常，分别为7／10例（70％）和6／22例（27.3％），其中最常见的是上颌侧切牙畸形；(2)两种类型的多个恒牙先天缺失患者的缺牙数目在上下颌及左右侧之间均无差别；(3)两种类型的多个恒牙先天缺失患者在缺失牙位上均呈对称分布，但在具体牙位上有所差异：不计第三磨牙，单纯型先天缺牙最常缺失的牙位是下颌第二双尖牙、其次为上颌侧切牙；而综合征型先天缺牙最常缺失的牙位是下颌尖牙和上颌侧切牙；无论何种情况，第一磨牙均为牙列中最稳定的牙齿；(4)在单纯型先天缺牙患者中，现存恒牙的牙冠宽度较国人正常值偏小，差异显著，提示牙齿形态与多个牙先天缺失有一定相关性。

Both upper and lower dental study models were collected from 30 boys (12 years old) and 30 girls (12 years old) with acceptable normal occlusion to understand the characteristics of the crown size, dental arch width and length such as (1) mesiodistal diameters of crown size from central incisor to first molar,(2) the width and length of dental arch and basal arch and (3) the morphology of dental arch form. After statistical analysis, data were compared with Japanese, Central and South American Indians and North American Caucasians from papers. The results were:(1) There was no statistical difference in teeth size between males and females, except the upper first molar of males was larger than that of females, lower central incisor of males was smaller than that of females.(2) The dimensions of dental arch of males were larger than that of females in general, especially such items as width and length of basal arch.(3) The crown size of Chinese male was in generally smaller than that of four other races, especially the upper canine, lower central incisor and first molar.

为了解住在台湾的中国人其牙齿的大小，齿列弓幅径及形态，为齿科人类学上的特微，以期能对儿童牙科，齿颚矫正科之临床及齿科基础医学能有所贡献，抽取12岁学童男女各30名共60名，可接受为正常咬合之上下颚齿列模型，测量其上下颚(1)左侧正中门牙到第一大臼齿共计12颗恒牙之牙冠近远心径，(2)齿列弓宽径、长径及齿槽基底宽径、长径，(3)齿列弓之形态，以上资料经统计分析作t-test检定，并与诸学者对日本人、北美白人、中美及南美印第安人人种的研究结果作检讨得知；(1)男女性恒牙的近远心径无明显差异，但男性上颚第大臼齿比女性者大，下颚正中门牙比女性者小；(2)男性的齿列弓幅径比女性者为大，尤以齿槽基底宽径及长径最显著；(3)国人男子的牙齿近远心径比其他四人种者为小，特别是国人的上颚犬齿，下颚正中门牙及第一大臼齿最小。

The interpremaxillary suture line, medial incisor tooth sockets, and junction between the lateral incisor and canine tooth sockets are visualized.

前颌骨间缝、中门牙穴及侧门牙与犬牙之间的连接可以被观察到。

与incisor相关的网络解释 [注：此内容来源于网络，仅供参考]

incisor：门牙

刘中锋在这方面的天赋(genius)丝毫不弱于他在枪械方面的能长着狐狸脸的那个司机就象做了一个屈体动作,脸朝下地扑向人行道,摔断了的门牙(incisor)都飞了出去.

incisor：门齿

在自然分类系统中啮齿动物属哺乳纲(Mammalia)啮齿目,最主要的形态特征为上、下颌各有1对锄状门齿(incisor),无犬齿(canine),取代犬齿的位置是齿隙(diastem).

incisor：切牙

牙(teeth)人体中最坚硬的器官,有咬切、撕裂、研磨食物及协助发音等功能. 人一生有两副牙:乳牙(milk teeth)在出生后约半岁左右开始萌出,两岁半左右出齐,共20个. 7~12岁,乳牙先后脱落牙式(dentition) 根据牙的形态和功能,可分为用以咬切食物的切牙(incisor);用以撕裂食物

incisor：门齿,切齿

哺乳动物的牙齿由于在切咬、咀嚼上的分工,分化为门齿(切齿)(incisor)、犬齿(canine)、前臼齿(premolar)和臼齿(molar). 门齿为切断食物之用,犬齿为刺穿和撕裂食物之用,前臼齿和臼齿为研磨食物之用. 由于同一种兽的牙齿形状和数目相同,

incisor tooth：切牙

incisor 切牙 | incisor tooth 切牙 | incisure 切迹