查询词典 difficult dentition

Diagnostic characters for the recognition of species include the presence or absence of pectoral fin, the position of dorsal fin origin, gill opening, anus, nostril opening and eye, the cirri present or not, the dentition type, the body coloration, and th

一般依据胸鳍的有无或发达程度，背鳍起点、鳃孔、肛门、鼻孔和眼等的相对位置，颌的发达程度和颌上是否具须，齿的形状和排列方式，身体的斑纹，以及头部和体侧的侧线孔数目等进行鉴别。

Inspired by the experience of treating limb fracture by the combined method of Chinese and Western medicine, we treated 19 cases of simple fracture in the mandibular chin area by wiring the mandibular dentition.

由于中西医结合治疗四肢骨折的经验启示，我们对19例下颌骨颏区单纯性骨折采用了下颌牙列结扎治疗。

Methods: Fourteen patients of infraocclusion which was caused by defect of dentition or excessive abrasion with temporomandibular internal derangement were choosed, transitional prosthesis were applied to hoist the occlusions.

选取14例因牙列缺损或重度磨耗所致低位咬合同时伴有颞下颌关节结构紊乱患者，采用暂时性修复体升高咬合，3个月后待症状缓解行永久性修复治疗，治疗完成3个月后复查。

From a preventive and interceptive viewpoint, when a child's dentition is a Class I relationship before the primary second molars are lost, so that the space derived from mesial drift and diastemata is available, it is likely that emerging permanent teeth will assume correct alignment.

由预防性与阻断性的观点而言，当小病人在第二乳臼齿脱落之前的齿列是一级咬合关系时，如此空间可由近心倾斜门齿间隙所获得，而将来的永久齿是可得一正确的排列。

Objective: Dentition defect is commonly seen in prosthetic dentistry. Understanding the stress state of the intraoral tissues and dentures is important for designing of the denture.

目的：牙列缺损是口腔修复科常见的疾病之一，了解牙列缺损及缺损修复后口腔内各组织及义齿的受力状况，有助于进行合理的修复设计。

A small and gradually TW was a physiological process accompanied by ones all life, but severe TW could cause a series of pathological changes between tooth and dentition, occlusion and articulation, the maxillomandibular relation and masticatory muscles. TW can affect the healthy between mastication and all correlated tissue.

少量的、逐渐的牙齿磨耗是伴随一生的生理过程，而重度磨耗可以引起牙与牙列、与咬合、颌间关系与颌周肌肉、颞下颌关节等发生一系列病理变化，从而影响到咀嚼功能和各相关组织的健康。

Methods: The sample consisted143 children which were in early permanent dentition of ClassⅡ,Division 1malocclusion .Pre-and post-treatment study models were assessed using PeerAssessment Rating index. According to the outcome of treatment, thesecases were classified into three types as "worse, no different","improved"and"greatly improved". The cephalometric analysis and Model Analysis werepreformed with pretreatment lateral cephalograms and study models for"improved"and "greatly improved"cases."T"–test was assessed to find out thesignificant difference between the extraction and nonextraction, and the resultsincluding age factor were analyzed by stepwise discriminant analysis.

应用PAR 指数对矫治前后的143 副恒牙早期的安氏Ⅱ类1 分类错牙合患者牙牙合模型进行评估分析，按矫治结果等级分为三类A、变坏或无改善，B、改善，C、极大改善，然后将B、C 两类患者矫治前的头影测量片及模型分析数据按拔牙与未拔牙进行成组t 检验的单因素分析，找出两组间有显著差异的软硬组织和牙牙合模型指标，对这些指标合并年龄因素进行逐步判别分析。

The data came from a male volunteer who had the full dentition、healthy periodontium and normal occlusion relationship.

建立下颌骨的三维有限元模型。选用牙列完整整齐，牙周健康，咬合关系正常的成年男性志愿者1例。

During the treatment of skeletal Class ill malocclusion in mixed dentition, the reverse Twinblock could procline the upper incisor, accelerated the development of maxillary and mandibular ramus, and restrained the development of mandibular body. A randomly allocated prospective study was required to fully evaluate the bone efficacy of this appliance.

反向Twinblock矫治器可使上切牙唇倾、位置前移；在治疗期间能促进上颌骨的发育，抑制下颌体的发育，促进下颌升支的增高；反向Twinblock矫治器的对上下颌骨的长期作用有待进一步研究。

Before the internal trifocal distractor was embedded, the remain dentition was performed inter maxilla fixation in order to keep the occlusion of the normal side.

分别在下颌骨缺损区两骨断端采用截骨术制作2块宽约1.5cm、高约3cm的骨牵引传送盘，最大限度保护传送盘骨块的软组织附着。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。