Serritella Emanuela, Impellizzeri Alessandra, Musone Ludovica, De Stefano Adriana Assunta, Gabriella Galluccio
Department of Oral and Maxillofacial Sciences, "Sapienza" University of Rome, Italy.
Faculty of Dentistry, Central University of Venezuela, Caracas, Venezuela.
J Orthod Sci. 2022 May 4;11:13. doi: 10.4103/jos.jos_128_21. eCollection 2022.
Connections between craniocervical posture (CCP) and changes in teeth position have already been demonstrated; however, the defined pathway of relationship is still not clear. The aim of this study was to evaluate CCP modifications after rapid maxillary expansion therapy using rapid palatal expansion therapy (REP)/McNamara appliances.
A consecutive series of 35 subjects, aged between 6 and 14 years, with no prior history of orthodontic treatment, and requiring skeletal expansion of the upper arch, were selected and analyzed. All patients were treated with REP or Mcnamara appliance: the active phase of 15 days and retaining phase of 6 months. Cephalometric analysis was carried out before (T0) and after (T1) orthodontic therapy evaluating changes in the craniofacial area and those related to CCP. The obtained data were statistically analyzed for the pre-post changes.
No statistically significant difference emerged indicating a modification in the CCP measured at T0 and T1 ( > 0.05). Patients treated with the McNamara appliance, compared to those treated with REP, showed a higher value of the angle OPT ^ Ver ( = 0.021), and a lower measure of the angles CVT^EVT ( = 0.035) and EVT^Ver ( = 0.023). Furthermore, patients treated with REP showed a higher hyoid angle value than those treated with McNamara ( = 0.047).
This study did not reveal any relationship between the application of palatal expansion therapy and changes in CCP.
颅颈姿势（CCP）与牙齿位置变化之间的联系已得到证实；然而，两者之间明确的关联途径仍不清晰。本研究的目的是评估使用快速腭扩展疗法（REP）/麦克纳马拉矫治器进行快速上颌扩展治疗后CCP的改变。
选取并分析了连续35例年龄在6至14岁之间、无前正畸治疗史且需要上颌骨扩弓的受试者。所有患者均接受REP或麦克纳马拉矫治器治疗：激活期15天，保持期6个月。在正畸治疗前（T0）和治疗后（T1）进行头影测量分析，评估颅面部区域的变化以及与CCP相关的变化。对获得的数据进行前后变化的统计学分析。
在T0和T1测量的CCP变化方面，未出现具有统计学意义的差异（>0.05）。与接受REP治疗的患者相比，接受麦克纳马拉矫治器治疗的患者OPT^Ver角的值更高（=0.021），CVT^EVT角（=0.035）和EVT^Ver角（=0.023）的测量值更低。此外，接受REP治疗的患者舌骨角值高于接受麦克纳马拉矫治器治疗的患者（=0.047）。
本研究未揭示腭扩展治疗的应用与CCP变化之间存在任何关联。
