It will cause loss of the canine guidance, damage of the occlusion, and discoordination of the maxillary and mandibular arch forms. 阻生犬齿引起犬齿导引的丧失、合的损伤、下颚牙弓的不协调。
Results After correction, the growth of maxilla was restrained, while the maxillary arch drifted to the distal, accelerating the mandible to grow forward and downward apparently. 结果矫治后患者上领前向生长明显受抑制,上牙弓远中移动;刺激下领向前向下生长。
Conclusion The method of treating anterior maxillary teeth protrusion by tooth extraction could decrease maxillary dental arch, help conform the form of soft tissues and hard tissues. 结论上颌牙齿前突减数矫治,有助于上颌和上牙弓的突度减小,使软硬组织面型之间的形态结构一致,特别对上牙弓突度的改善是肯定而持续的。
Severe lower crowding with normal maxillary arch and nasolabial angle. 严重的低拥挤与正常上颌牙弓和鼻唇角。
Palatal expansion is frequently applied in correction of maxillary transverse deficiency and upper dental arch constriction. 腭扩展是正畸常用的矫治上颌横向发育不足及上颌牙弓狭窄的固定矫治技术。
Objective To observe the clinical effect of removable quad-helix appliance in the expansion of adult maxillary arch. 目的观察可摘式四眼簧扩大成年人上颌牙弓的临床效果。
Clinical Application of Removable Quad-Helix Appliance in the Expansion of Adult Maxillary Arch 可摘式四眼簧在成年人上颌扩弓中的临床应用
Results After treatment, maxillary and mandibular anterior teeth were arranged in dental arch neatly. 结果30例患者矫正后上下前牙排列整齐,覆盖覆牙合正常,磨牙关系正常;
Objective To acquire the influence of different kinds of palatal lateral excisions on maxillary and dental arch growth and development by measuring the maxilla and dental arch width of models with different kinds of palatal lateral excisions continuously. 目的通过建立腭裂手术不同松弛切口动物模型,连续性测量上颌骨和牙弓宽度变化,了解不同松弛切口愈合对上颌骨及牙弓生长发育的影响作用。
The Influence of Different Area of Palatine Bone Denudation on Maxillary and Dental Arch Growth and Development 硬腭裸露骨面面积对上颌骨及牙弓生长发育的影响
Study the plaster cast of the maxillary dental arch before and after the experiment to find out the influence of DO on occlusion. 通过对实验前后石膏模型的研究,观察该方法对成年实验动物咬合关系的影响。
Objective This study analysed the deviation between planned prosthetic trajectory ( PPT) and residual bone trajectory ( RBT) in different areas of the maxillary and mandibular dental arch. 目的测量颌骨不同区域修复设计要求的牙种植体植入方向(PPT)与颌骨骨量允许的植入方向(RBT)间的差异。
Objective: To study the effect of the improved maxillary bite plate on the width of mandibular arch. 目的探讨戴用上颌全腭导板对下颌牙列牙弓宽度的影响。
Objective The purpose of the study was to evaluate the effection of using rapid maxillary expansion accompanied with straight-wire appliance on dental arch and basal bone. 目的评价上颌快速扩弓和直丝弓矫治器联合应用对牙弓、基骨宽度的影响。
The effect of the improved maxillary biteplate on the width of mandibular arch Conclusion The lip bumper could play an important role in the mandibular arch development and lower facial profile improvement in mixed and early permanent dentition. 上颌全腭导板对下颌牙弓宽度的影响研究结论在儿童颌面部生长发育高峰期,唇挡可有效促进下颌牙弓生长发育,改善面下部硬软组织侧貌形态。
There were no relevant ties of the maxillary and the mandibular bony arch length with the anterior lower facial height ( ALFH), the posterior lower facial height ( PLFH) and the average height of both ( LFH) respectively. 上颌基骨长和下颌基骨长分别与前下面高(ALFH)、后下面高(PLFH)和均高(LFH)间无相关关系。
The heritability of maxillary arch length ( 71.26%) was higher than the mandibular one ( 31.33%). 上颌牙弓弧长的遗传度(71.26%)明显高于下颌(31.33%);
Methods: The pressure of cheek and tongue on mandibular and maxillar first molars was measured with a computer aided perioral force measuring system in 16 patients ( 8 male and 8 famale) with constrictive maxillary arch. 方法:用新型计算机辅助口周力测量系统对16名上颌牙弓狭窄患者上下颌第一磨牙颊侧、舌侧进行口周力测量。
Conclusions The net increase in maxillary intercanine width during treatment was more stable than that of mandibular arch. 结论治疗后上颌尖牙宽度净增加量较下颌稳定;
Conclusion The use of rapid maxillary expansion accompanied with straight-wire appliance can greatly increase the width of dental arch and basal bone, it has been proved a practical method for arch expansion suitable for patients with dental crowding. 结论上颌快速扩弓和直丝弓矫治器联合应用能使牙弓、基骨宽度快速增加,对牙列拥挤病例是一种安全、有效的治疗方法。
Conclusion: Expanding maxillary posterior arch width in Angle ⅱ 1 patients may be one of the important methods to harmonize upper and lower arch form. 结论临床上扩展AngleⅡ~1的后上牙弓宽度可能是协调上下牙弓形态的重要措施之一。
Conclusion Mild and moderate skeletal class ⅲ with mandibular deviation can be corrected successfully by maxillary expansion and multiloop edgewise arch wire technique. 结论轻度及中度安氏Ⅲ类错(牙合)伴下颌偏斜畸形患者通过上颌的扩弓及多曲方丝弓矫治技术可有效地矫正磨牙关系及下颌偏斜。
Conclusion: Bar should be designed according to the alveolar ridge and maxillary or mandibular arch of the patients and the principle of Spiekermann's design. 结论:应根据患者的牙槽嵴和颌弓条件分别选用三类不同的杆设计形式;
A study of relationship between constrictive maxillary arch and perioral muscle pressure 上颌牙弓狭窄与口周力的相关性研究
Surgical Technique of Maxillary Arch Expansion 上颌骨弓外科快速扩大术
Direct measurement of width of maxillary arch and the cleft, and the length of the hard palate was performed before and after distraction to evaluate the effects of distraction. 用误差为02%的游标卡尺,测量牵引前和牵引后上颌牙弓宽度、裂隙宽度和硬腭长度。
Method 18 patients with moderate dental crowding were treated by rapid maxillary expansion and straight-wire appliance, the changes of width of dental arch and basal bone were measured before and after orthodontic treatment. 方法对18例恒牙早期牙列中度拥挤病例以上颌快速扩弓和直丝弓矫治器进行联合治疗,通过对矫治前后牙牙合石膏模型的测量比较,观察牙弓、基骨宽度的变化。
Results We found that the Group ⅲ ( Tennison lip repair) had the anterio posterior growth disturbance of maxillar, maxillary height and posterior dental arch width were larger for compensation and the nasal septum deviated to the cleft side. 结果发现Tennison法修补唇裂术后,上颌骨前后向生长发育较正常对照组和造裂组受限,同时上颌骨宽度、后牙弓宽度呈代偿性增加,鼻中隔向裂隙侧偏曲。
PURPOSE: To study the effect of maxillary and mandibular lip bumper on tooth and dental arch in late mixed dentition. 目的:研究上下颌唇挡同时应用对替牙晚期儿童牙牙合的影响。