尖牙

Then, it is gradually decreased from first bicuspid to second bicuspid, first molar, which are 3.96mm, 3.62mm and 2.95mm, respectively.

上下牙列从尖牙向后，牙尖高度值和托槽粘贴高度值呈逐渐减小的趋势且依次减小约0.5mm。

In practice, this is because just before the out of teeth, root is not fully formed, the pulp cavity and apical foramen are large, thin apical cementum caused.

实际上，这是因为之前出牙，根尚未完全形成，牙髓腔和根尖孔大，薄根尖牙骨质造成的。

This minor adjustment is quite easy, as opposed to adjustments made from cuspid to cuspid in the arch form.

这轻微调整很容易，而不是调整从尖牙至尖牙在牙弓形态。

After treatment the changes of dental arch width in first and second premolar region were larger than that of cuspid and first molar regions.

上颌第一、二双尖牙间各自宽度较尖牙间、一磨牙间宽度增加显著。

The measurement covered the tooth material,premolar diametre,premolar basal arch widthand basal arch length. The ratios of PMD/TM, PMBAW/TM and BAL/TM were calculate.

测量牙量、双尖牙弓宽径、双尖牙根尖基骨宽径、基骨弓长度，并计算PMD/TM、PMBAW/TM、BAL/TM值，对其进行统计学处理与分析。

As long as you protect the good kid's baby tooth and make the milk sharp tooth shed off and the Heng sharp tooth harbour time of unanimouslyn and then can't influence a tiger tooth.

只要您保护好孩子的乳牙，使乳尖牙脱落和恒尖牙萌出的时间一致就不会影响虎牙。

Objective Analysis of the canine and molars movement type in different orthodontics force by means of finite element method.

目的 用有限元的方法分析尖牙远中移动时尖牙及支抗磨牙不同受力状态下的移动方式。

Change of arch width after extraction and nonextraction treatment;2. Effects on arch width after extraction and nonextraction treatment;3. Intercanine and intermolar arch widths and anterior arch depths of the maxillary and mandibular arches were measured.

结论与不拔牙矫治相比，拔牙矫治不会减小尖牙间牙弓宽度和前牙段牙弓长度而影响面部美观；但拔牙和不拔牙矫治都能引起磨牙间牙弓宽度的改变，可能影响疗效的长期稳定性。

objectivethe aim of this study was to evaluate the curative effects of the modified fixed reverse twin-block appliance combine edgewise on treatment of adult angle ⅲ anterior crossbite.methodsthe appliance was used on 15 adult subjects with angle ⅲ malocclusion and then compared clinical character and x-ray cephalometry before and after treatment.resultsafter 4 months treatment the appearance and profile were improve evidently, mandible retrusion was to lead molar and canine were angle i,overjet and overbite were normal.

目的：应用改良固定反式双阻板矫治器（twin-block appliance，tba）联合方丝弓技术矫治成人angleⅲ前牙反牙合，为成人前牙反牙合提供新的治疗方法。方法：矫治成人患者15例，进行临床表现及相关硬组织测量。结果：固定反式tba戴用4个月后下颌明显后退。所有患者在未拔牙的情况下前牙反牙合均得到有效治疗，磨牙及尖牙均达到i类关系。但上颌仅为牙及牙槽的代偿性变化。

The posterior length of the dental arch changed significantly (P.001). The maxillary and mandibular arch shapes didn't change before and after treatment.

结果：上、下牙弓宽度在矫治前、后有显著差异(P.05)；上、下牙弓长度治疗前、后尖牙长度变化不明显，而第一磨牙长度具有显著性差异(P.001)；治疗前、后，上、下牙弓形状无明显变化。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失