To evaluate the dental and skeletal effects that occur in the correction of anterior open bite with clear aligners. In this single-center retrospective study, the mechanism of anterior open bite closure using clear aligners (Invisalign, Align Technology, Santa Clara, CA, USA) was evaluated by cephalometric superimposition based on records of patients consecutively treated by a single, experienced Invisalign provider. Inclusion criteria consisted of anterior open bite (overbite < 0.5 mm), adult patients (18+) at the beginning of treatment, consecutive records, and good quality pre- and post-treatment records, where the required landmarks were clearly visible. A total of 45 patients were included for data analysis with a mean age of 30.73 ± 8.0 years and initial open bite of − 1.21 ± 1.15 mm. During treatment, the upper incisors showed significant (p < 0.05) retraction [U1-SN′(°) = − 10.91 ± 6.95°], [U1-SN′perp(mm) = − 2.57 ± 1.75 mm] and extrusion [U1-SN′(mm) = 1.45 ± 0.89 mm]. The lower incisors also showed significant retraction [IMPA(°) = − 3.73 ± 4.91°), (ΔL1-MP′perp (mm) = − 1.08 ± 1.59] and extrusion (ΔL1-MP′(mm) = 0.53 ± 0.74). Regarding molar position, no significant changes were noted in the anteroposterior position of the upper [ΔU6-SN′perp(mm) = 0.01 ± 1.08 mm] and lower molar [ΔL6-MP′perp(mm) = 0.03 ± 0.87 mm]; however, there was a statistically significant intrusion of the upper [ΔU6-SN′(mm) = − 0.47 ± 0.59 mm] and lower molar [ΔL6-MP′(mm) = − 0.39 ± 0.76 mm]. Open bite closure with clear aligners occurred due to a combination of maxillary and mandibular incisor extrusion and maxillary and mandibular molar intrusion, with slight mandibular auto rotation. Significant retraction of maxillary and mandibular incisors was also observed with treatment. Clear aligners are effective in reducing/controlling the vertical dimension in open bite patients.

中文翻译：

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使用透明对准器评估开放式咬合闭合性：一项回顾性研究。

评估在使用透明对准器矫正前路开放性咬合时发生的牙齿和骨骼影响。在这项单中心回顾性研究中，使用头颅测量叠加法，根据由一位经验丰富的Invisalign提供者连续治疗的患者的记录，通过头颅测量叠加评估了使用透明对准器（Invisalign，Align Technology，Santa Clara，CA，美国）的前路开放式咬合闭合的机制。 。入选标准包括前开口咬合（超咬合<0.5 mm），治疗开始时的成年患者（18岁以上），连续记录以及治疗前和治疗后高质量的记录，其中清晰可见所需的标志。总共有45名患者被纳入数据分析，平均年龄为30.73±8.0岁，初次开放咬合为-1.21±1.15 mm。治疗期间 上门牙显示出明显的（p <0.05）缩回[U1-SN'（°）=-10.91±6.95°]，[U1-SN'perp（mm）=-2.57±1.75 mm]和挤压[U1-SN' （mm）= 1.45±0.89 mm]。下门牙也显示出明显的回缩[IMPA（°）=-3.73±4.91°），（ΔL1-MP'perp（mm）=-1.08±1.59]和挤压（ΔL1-MP'（mm）= 0.53±0.74）关于磨牙位置，上部[ΔU6-SN'perp（mm）= 0.01±1.08 mm]和下部磨牙[ΔL6-MP'perp（mm）= 0.03±0.87 mm]的前后位置无明显变化。 ；但是，上颌骨[ΔU6-SN'（mm）=-0.47±0.59 mm]和下颌骨磨牙[ΔL6-MP'（mm）=-0.39±0.76 mm]有统计上显着的侵入。由于上颌和下颌切牙的挤压与上颌和下颌磨牙的侵入相结合而产生了清晰的对准器，下颌轻微旋转。在治疗中也观察到上颌和下颌切牙的明显收缩。透明对准器可有效减少/控制开放性咬合患者的垂直尺寸。