Objective To introduce the use of the pedicled buccal fat pad in reconstruction of defects of the retromolar tissue due to resection of tumors. 目的探讨带蒂颊脂垫对磨牙后区肿瘤切除术后组织缺损的修复效果。
There was a strong positive relationship between frequency of third molar impaction and angulation degree ( P0.01), but the former was inversely associated with retromolar space ( P0.01). 下颌第三磨牙阻生的发生率与近中倾斜角呈正相关(P0.01),而与磨牙后间隙呈负相关(P0.01)。
Conclusion: The impaction of mandibular third molar were related to the development of the mandible. The length of retromolar space, the length of the mandibular alveolar ridge and the ratio of the length of retromolar space and the mesiodistal crown width were the main affecting factors. 结论:下颌第三磨牙阻生与下颌骨发育相关,磨牙后间隙的长度、磨牙后间隙长度与第三磨牙牙冠宽度比值是主要的影响因素。
Conclusion: Tumor-resection surgery is a main means to treatment of retromolar trigone malignant tumor. 结论:手术切除方法是磨牙后区恶性肿瘤的主要治疗方法。
Result: The length of retromolar space, the length of the mandibular alveolar ridge and the mesiodistal crown width of mandibular third molar were related to the impaction of mandibular third molar, but the gonial angle, the crystal-marginal angle were not. 结果:磨牙后间隙长度、下颌骨牙槽长度和第三磨牙牙冠宽度与第三磨牙阻生相关,下颌角和嵴缘夹角角度与阻生牙无关。
In modern population, the impaction rate for third molars is higher than any other tooth. One explanation might be that the inadequate retromolar space. 在现代人,第三磨牙阻生率高于其它牙齿,其中一个原因可能是磨牙后间隙不足。
Conclusion This reflects that the second molars could move mesially during treatment in the second premolars extraction subjects, which can lead to the increase of the retromolar space. 结论:第二前磨牙拔除患者可发生第二磨牙近中移动,导致磨牙后间隙增加。
The retromolar space was significantly smaller in the impacted group than that in the erupted group ( P0.001). 阻生组磨牙后间隙比萌出组小,二者之间在统计学上有显著性差异(P0.001)。
Results The most common sit was the palate ( 4/ 9). Few lesions were found in the upper labial mucosa ( 2/ 9). 1 case was found in the buccal mucosa and mandibular retromolar pad and the tongue respectively. 结果9例的发生部位以腭部最多见(4/9),其次为上唇(2/9)、颊、磨牙后垫及舌各1例。
Which spaces can be utilized in the dental arch? Many scholars have begun to focus on the second retromolar space. 那么如何后退前牙?牙弓中有哪些间隙可以利用?其中很多学者开始关注第二磨牙后间隙。
The gender has no significant relationship with the second retromolar space. 4成人第二磨牙后间隙大小与性别没有明显关系。
The retromolar space of the mandible is longer than the maxilla in the different vertical facial types. 3. 2不同垂直骨面型下颌第二磨牙后间隙的长度大于上颌第二磨牙后间隙的长度。