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Tomographic assessment of palatal suture opening pattern and pterygopalatine suture disarticulation in the axial plane after midfacial skeletal expansion.
Progress in Orthodontics ( IF 3.5 ) Pub Date : 2020-07-20 , DOI: 10.1186/s40510-020-00321-9
Ozge Colak 1 , Ney Alberto Paredes 1 , Islam Elkenawy 1 , Martha Torres 1 , Joseph Bui 1 , Sara Jahangiri 1 , Won Moon 1
Affiliation  

The purpose of this study was to assess the palatal suture opening and the pterygopalatine suture disarticulation pattern in the tomographic axial plane after treatment with midfacial skeletal expander (MSE). Pre- and post-expansion CBCT records of 50 subjects (20 males, 30 females, mean age 18 ± 3 years) who were treated with MSE (Biomaterials Korea, Seoul, Korea) appliance were superimposed and compared using OnDemand software. Reference planes were identified and the angulation of the midpalatal suture opening after expansion was calculated as well as the frequency of the pterygopalatine suture split. After MSE treatment, the mean palatal suture opening angle (SOA) was 0.57°. (− 0.8° to 1.3°). There was no significant difference between males and females in terms of the palatal suture opening pattern (P > 0.05). Only 3 out of 50 (6%) subjects presented SOA above 1 degree. Also, 3 out of 50 (6%) patients presented a negative SOA value. With regard to the pterygopalatine suture split, 84 sutures out of 100 (84%) presented openings between the medial and lateral pterygoid plates on both right and left sides. Partial split was detected with 8 patients (5 females, 3 males). Five patients had split only in the medial pterygoid plates of both pterygomaxillary sutures, and 3 patients exhibited disarticulation on the right side only. No significant differences were found in the frequency of suture opening between males and females (P = 1.000). MSE appliance performed almost parallel expansion in the axial view. Remarkably, this study shows that pterygopalatine suture can be split by MSE appliance without the surgical intervention; the disarticulation of pterygopalatine suture was visible in most of the patients.

中文翻译:

颌骨中部扩张后轴向上pa骨缝线开口方式和翼翼pal肌缝线的关节断层的断层扫描评估。

这项研究的目的是评估用中颌骨扩张器(MSE)治疗后的X线断层扫描轴向上pa骨缝线开口和翼ery肌缝线的脱关节方式。使用OnDemand软件对使用MSE(韩国生物材料公司,韩国首尔)设备进行治疗的50名受试者(男性20例,女性30例,平均年龄18±3岁)的扩张前和扩张后CBCT记录进行叠加和比较。确定参考平面并计算扩张后pal中缝开口的角度以及翼ery肌缝线分裂的频率。MSE治疗后,平均pa缝开口角度(SOA)为0.57°。(− 0.8°至1.3°)。lat缝开口方式在男性和女性之间没有显着差异(P> 0.05)。50名受试者中,只有3名(6%)的SOA高于1度。同样,每50名患者中有3名(6%)的SOA值为负。关于翼pal缝线的拆分,在100条(84%)缝线中,右侧和左侧的内侧和外侧翼板之间存在开口。检测到部分分裂的8例患者(5例女性,3例男性)。五例患者仅在两个上颌骨缝合线的内侧翼状plates骨中分开,而3例仅在右侧显示了脱关节。男性和女性之间的缝线打开频率没有发现显着差异(P = 1.000)。在轴向视图中,MSE设备执行了几乎平行的扩展。值得注意的是,这项研究表明,无需手术干预,MSE装置即可分割翼龙pal缝线。
更新日期:2020-07-20
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