Sahoo Subhranshu S, Dash Jayanta K, Sahoo Prasanna K, Das Surya K, Baliarsingh Ratna R, Ray Prayas
Department of Pedodontics and Preventive Dentistry, SCB Dental College and Hospital, Cuttack, Odisha, India.
Department of Orthodontics and Dentofacial-Orthopaedics, SCB Dental College and Hospital, Cuttack, Odisha, India.
Int J Clin Pediatr Dent. 2023 Sep-Oct;16(5):716-723. doi: 10.5005/jp-journals-10005-2667.
Orthopedic correction of skeletal class III malocclusion in a growing patient is crucial as it can circumvent future surgical procedures.
The aim of the study is to evaluate the dental and skeletal effects of early orthodontic intervention of developing class III malocclusion.
A final sample of 38 children in the age-group of 6-14 years having skeletal class III malocclusion was selected. Subjects were divided into two groups; group I-included 18 children (male-10, female-8) with surgically repaired cleft lip and palate and group II-20 children (male-14, female-6) without any cleft lip and palate.
Cemented rapid maxillary expansion (RME) appliances with 11 mm hyrax screws were used in all patients. Elastic traction forces were applied to the reverse-pull headgear worn by the patients. Both pre- and posttreatment records along with lateral cephalograms were taken.
The pre- and posttreatment mean and standard deviation measurements of the angular and linear observations were statistically analyzed with Statistical Package for the Social Sciences (SPSS) software (version 13) and were correlated through independent -test and paired -test.
Following headgear therapy, improvement was greater in the cleft group than noncleft group with greater advancement of maxilla along with clockwise rotation of mandible in clefts.
Protraction mechanics with expansion can be employed successfully in repaired cleft lip and palate and noncleft prepubertal children having developing class III malocclusion, showing concave profile, and retrusive maxilla.
Accurate diagnosis and understanding of the individual growth pattern are crucial in the early interception of a class III malocclusion to achieve a more favorable facial profile.
Sahoo SS, Dash JK, Sahoo PK, Early Orthodontic Intervention in Cleft Lip-Palate and Noncleft Children with Developing Class III Malocclusion: A Clinical Study. Int J Clin Pediatr Dent 2023;16(5):716-723.
对正在生长发育的患者进行骨骼Ⅲ类错颌畸形的正畸矫治至关重要,因为这样可以避免未来的外科手术。
本研究旨在评估早期正畸干预对正在发育的Ⅲ类错颌畸形患者牙齿和骨骼的影响。
选取了38名年龄在6至14岁、患有骨骼Ⅲ类错颌畸形的儿童作为最终样本。受试者被分为两组;第一组包括18名儿童(男10名,女8名),均为唇腭裂手术修复患者;第二组20名儿童(男14名,女6名),均无唇腭裂。
所有患者均使用带有11毫米Hyrax螺钉的固定式快速上颌扩弓矫治器。对患者佩戴的反向牵引头帽施加弹性牵引力。治疗前后均进行记录,并拍摄头颅侧位片。
使用社会科学统计软件包(SPSS)软件(版本13)对角度和线性观察指标的治疗前后均值及标准差测量值进行统计学分析,并通过独立样本t检验和配对样本t检验进行相关性分析。
经过头帽治疗后,唇腭裂组的改善程度大于非唇腭裂组,唇腭裂组上颌骨向前移动更多,同时下颌骨顺时针旋转。
扩弓牵引力学方法可成功应用于唇腭裂修复患者以及青春期前患有发育性Ⅲ类错颌畸形、面型凹陷且上颌后缩的非唇腭裂儿童。
准确诊断并了解个体生长模式对于早期阻断Ⅲ类错颌畸形、获得更理想的面部外形至关重要。
Sahoo SS, Dash JK, Sahoo PK, 早期正畸干预唇腭裂及非唇腭裂发育性Ⅲ类错颌畸形儿童:一项临床研究。《国际临床儿科牙科学杂志》2023;16(5):716 - 723。