颊

Oral Surg,1971,32∶271-275［2］ Weine FS,Healy HJ,Gerstein H,et al.Canal configuration in the mesiobuccal root of the maxillary frist molar and its endodontic significance ［J］. Oral Surg Oral Med Oral Pathol,1969,28∶419-425［3］ Weller RN,Hartwell GR.

本研究通过对80例离体上颌第一磨牙行近远中方向，颊舌方向x 线投照，旨在近一步了结其根管的弯曲走向，弯曲程度，弯曲位置。X线片只能反应根管在一个平面上的走向、形态。

Methods 20 fresh extracted,same size in mesiodistal and height of cusp,1st up premolars were taken for this study.

磨除近远中邻面，使之近远中径为 4mm ，在颊牙尖釉质层下制备 4mm× 4mm× 3mm的洞型并随机分成两组。

After obtaining the nasorbital image fitting data as the reference to the simulation and mesiodistal to different angles of the post-core angle.

图像拟合之后获取颌骨形态参数，以此为参照模拟颊舌向及近远中向不同角度的桩核冠修复角度加力后寻求安全角度范围。

RESULTS: When torque force loads were applied, the peak values of VonMises stress on buccal side, lingual side and mesiodistal side of the implant neck were 0.624, 0.652, and 0.603 MPa, respectively, and the peak values of displacement were 0.066, 0.059 and 0.063 μm, respectively.

结果：在扭转力载荷作用下，种植体颈部颊侧、舌侧及近远中侧的VonMises应力峰值分别为0.624，0.652和0.603 MPa；位移峰值分别为0.066，0.059和0.063 μm。

In this study, the position of implant inclined to the lingual side slightly. When torque force was exerted on implants the lingual, buccal, and mesiodistal maximum Von-Mises stress were 0.65MPa, 0.624MPa and 0.603MPa, respectively.

由于本实验中种植体种植的部位略偏向舌侧，当种植体受到扭力作用的时候，其舌侧、颊侧及近远中侧的最大Von-Mises应力分别为0.65MPa、0.624MPa、0.603MPa。

In this study the composites were applied to repair the rabbits'mandibular defects and implanted at the surface as onlay grafts that was fixed with dental implants. The ability of the composites repairing maxillofacial defects was evaluated with general observation, radiological and histological examination and compared with autogenous bone and coral.

本研究通过观察rhBMP-2、胶原、珊瑚复合骨修复兔下颌骨缺损，加高狗下颌骨骨面及与牙种植体结合，并与新鲜自体骨和珊瑚的修复作用比较，（1）应用复合骨修复兔下颌骨缺损，1、2、3个月取材，（2）将复合骨植于狗下颌骨体部颊侧骨膜下，采用钛种植体固定，1.5、3个月取材，通过体视及测量，X线片，组织学等观测指标，分析rhBMP-2、胶原、珊瑚复合骨修复骨缺损特点和体内降解特点。

In order to get good result based on the different cases, the right procedures (ostectomy, masseter excision or buccal fat pad removed) should be chose carefully.

劈裂截骨术对下颌骨体肥大伴明显外翻者可取得相当好的手术效果，手术结合部分咬肌及颊脂肪垫的去除能取得更为理想的效果。

Physical examination disclosed anontender mass in the right maxillary mucobuccal fold and the magnetic resonance imaging revealed asolid mass occupied in the right maxillary sinus.Enucleation combined with peripheral ostectomy was performed.

就诊的两个月前患者口腔及鼻腔内开始有出血的情形，其理学检查发现右侧上颚颊前庭出现一无痛性肿胀，而磁振造影检查显示一实质性肿瘤充满于右侧上颚窦内。

Objective To evaluate a long-term effect on pronunciation and maxillary growth of elder patients with wide isolated cleft palate after bibuccinator myomucosal island flap palatoplasty.

目的 对采用双颊肌黏膜瓣修复的大龄宽大腭裂患者的语音效果和上颌骨发育情况进行分析，评价手术的远期效果。

The acne distribution was noticed mainly over cheeks and forehead in both genders before age 25. In or omen with adult acne, the distribution of acne seems to move doss ass and to perioral area. Association of acne with menstrual cycle was reported in 69% of women, with pre-menstrual exacerbation in 71% of them.

在25岁以前发的痤疮，不论男性女性都是以两颊及前额为最好发部位，在女性成人期痤疮，其好发部位则有往下延伸到嘴巴周围的现象。69%的女性认为痤疮的发生与月经周期有关，其中71%为经期前恶化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。