Original Article
Comparison of clinical effects of different occlusal pad type active appliance on complete cleft lip and palate
Chen Zhuo, Liu Lin, Yan Lihui
Published 2021-02-25
Cite as Chin J Pract Med, 2021, 48(4): 13-17. DOI: 10.3760/cma.j.cn115689-20200929-04663
Abstract
ObjectiveTo compare the effect of different occlusal pads on complete cleft lip and palate.
MethodsA total of 62 children with unilateral complete cleft lip and palate treated in Zhengzhou Central Hospital Affiliated to Zhengzhou University from June 2017 to June 2020 were selected as the research object. Patients whose dental arch was mainly narrowed to the back were included in the spiral group, and the spiral arch expander was used for occlusion cushion type movable appliance, narrowing the front and back of the dental arch, and the patients with more obvious anterior narrowing were included in the fan-shaped group, using the fan-shaped expander occlusal cushion type movable appliance, each group with 31 cases, all underwent arch expansion treatment. The anterior tooth coverage, molar relationship, mandibular length, maximum transverse diameter of pear-shaped foramen, maximum transverse diameter of the lower part of the nasal cavity in the first premolar area, and upper alveolar seat angle (SNA), mandibular sagittal angle (SNB), difference between SNA angle and SNB angle (ANB), nasal airway volume, pharyngeal airway volume and minimum cross-sectional area of pharyngeal airway between the two groups were compared before and after treatment.
ResultsThe anterior tooth coverage in the sector group after treatment was significantly lower than that before treatment and after treatment in the control group(P<0.05); the molar relationship between the two groups after treatment was significantly lower than that before treatment, and the mandibular long group was more significant higher than that before treatment (P<0.05). After treatment, the largest transverse diameter of the piriform foramen, the largest transverse diameter of the lower part of the nasal cavity in the first premolar area, and the largest transverse diameter of the lower part of the nasal cavity in the first molar area were significantly higher in the two groups after treatment (P<0.05). The SNA and ANB in the two groups after treatment were significantly higher than those before treatment, and SNB was lower than that before treatment(P<0.05). The nasal airway volume, pharyngeal airway volume, and oropharyngeal airway minimum cross-sectional area of the two groups after treatment were significantly higher than those before treatment(P<0.05).
ConclusionsOcclusal splint appliance with spiral and fan-shaped arch expander in children with complete cleft lip and palate can expand the arch and improve the effect of orthodontic treatment.
Key words:
Cleft lip; Cleft palate; Occlusal pad movable appliance
Contributor Information
Chen Zhuo
Department of Stomatology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450007, China
Liu Lin
Department of Stomatology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450007, China
Yan Lihui
Department of Stomatology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450007, China
垫式活动矫治器治疗完全性唇腭裂的临床效果比较
垫式活动矫治器治疗完全性唇腭裂的效果。
垫式活动矫治器；将牙弓前后部皆缩窄，且前部缩窄更明显患儿纳入扇形组，采用扇形扩弓器
垫式活动矫治器。每组31例，均行扩弓治疗。比较两组治疗前后前牙覆盖、磨牙关系、下颌长、梨状孔最大横径、第一前磨牙区鼻腔下部最大横径、第一磨牙区鼻腔下部最大横径上齿槽座角(SNA)、下颌矢向位角(SNB)、SNA角与SNB角之差(ANB)、鼻气道体积、咽气道体积及咽气道最小横截面积。
垫式活动矫治器应用于完全性唇腭裂患儿，对各自适应证均能较好地扩弓，提高正畸治疗效果。
，最终影响患儿上颌骨生长，因而需要通过正畸治疗来对其进行矫正[2]。上颌扩弓作为正畸治疗的重要组成部分，可通过矫正器对错误
进行扩弓使其恢复协调，进而达到治疗效果[3]。目前临床常采用的矫治器包括螺旋扩弓器
垫式活动矫正器、焊接式Hyrax扩弓器、四角舌弓扩弓器，其中
垫式活动矫治器不仅避免了粘固式矫治器拆除时对松动乳牙的影响，还有利于患儿取于口外进行调整加力，但临床有关不同
垫式活动矫治器的临床使用效果的报道较少[4]。本研究探讨不同
垫式活动矫治器用于完全性唇腭裂的临床效果。
垫式活动矫治器
