【摘要】 目的：本研究主要通过评估腭皱襞在上颌快速扩弓（RME）后的形态稳定性，以证明在特定正畸治疗后，它是否仍然保持其唯一性和对人类个体识别的有效性。方法：回顾性研究了50个处于成长期接受了RME治疗的患者（男24例，女26例），与20个未行RME治疗的对照组患者（男8例，女12例）进行了比较。两组均使用口内扫描仪获得治疗前后两个数字化牙(牙合)模型，利用逆向建模软件进行了前后模型的叠加，以获得两个腭皱襞模型之间的最小点到点距离。扩弓组和对照组的差异采用Kruskal-WallisH检验进行统计学分析。结果：未行RME的对照组模型和RME治疗的模型之间的均方根（RMS）值没有显著差异（P>0.05）。结论：RME对青少年腭皱襞稳定性影响较小，在进行RME后，腭皱襞仍可作正畸颅面部数字化三维影像重叠中稳定参考结构，亦可作为法医学个体识别案件鉴定标志之一。更多还原

【Abstract】 Objective:This study mainly evaluated the morphological stability of the palatal rugae after rapid maxillary expansion(RME) to prove whether it still maintains its uniqueness and effectiveness for human individual identification after specific orthodontic treatment.Methods:A retrospective study was conducted on 50 patients(24 males and 26 females) who were treated with RME during their growth period,and compared with 20 control patients(8 males and 12 females) who did not receive RME treatment.Two digital dental models before and after treatment were obtained by intraoral scanner(itero) in both groups.The two models were superimposed by reverse modeling software(Geomagic Wrap 2021) to obtain the minimum point-to-point distance between the two palatal plica models.The difference between the expansion group and the control group was statistically analyzed by KruskalWallis test.Results:There was no significant difference in root mean square(RMS) values between the control group model without RME and the model treated with RME(P>0.05).Conclusion:RME has little effect on the stability of palatal rugae in adolescents.After RME,palatal rugae can still be used as a stable reference structure in orthodontic craniofacial digital 3D image overlap,and can still be used as one of the identification signs of forensic individual identification cases.更多还原