Canuto Luiz Filiphe Gonçalves, Janson Guilherme, de Lima Niedje Siqueira, de Almeida Renato Rodrigues, Cançado Rodrigo Hermont
Professor, Department of Orthodontics, Uninassau Dental School, Recife, Pernambuco, Brazil.
Professor and head, Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.
Am J Orthod Dentofacial Orthop. 2016 Jun;149(6):847-55. doi: 10.1016/j.ajodo.2015.11.026.
The purpose of this study was to compare the isolated effects of bonded and conventional spurs on the craniofacial and dentoalveolar complexes of patients in the mixed dentition with anterior open bite.
The sample included 68 subjects with anterior open bite and Class I malocclusion. Group 1 comprised 20 patients treated with bonded lingual spurs with a mean initial age of 9.31 years (SD, 1.17). Group 2 consisted of 21 patients treated with conventional lingual spurs with a mean initial age of 9.22 years (SD, 1.62). The control group (group 3) consisted of 27 untreated subjects. One-way analysis of variance tests followed by Tukey tests were used for intergroup cephalometric comparisons. After 1 month of treatment, patient acceptance of the spurs was evaluated with a questionnaire.
There were significantly greater overbite increases in the experimental groups than in the control group. The group with bonded lingual spurs showed significantly better acceptance than did the group with conventional lingual spurs during chewing and eating.
The 2 appliances resulted in similar overbite increases during early open-bite treatment. After a week or less of treatment, 92.5% of the children had adjusted to the spurs.
本研究的目的是比较粘结式和传统式矫治器对混合牙列期前牙开颌患者颅面及牙槽复合体的单独作用。
样本包括68例前牙开颌且安氏I类错颌的受试者。第1组由20例使用粘结式舌侧矫治器治疗的患者组成，平均初始年龄为9.31岁（标准差为1.17）。第2组由21例使用传统舌侧矫治器治疗的患者组成，平均初始年龄为9.22岁（标准差为1.62）。对照组（第3组）由27例未接受治疗的受试者组成。采用单因素方差分析及Tukey检验进行组间头影测量比较。治疗1个月后，通过问卷评估患者对矫治器的接受程度。
试验组的覆牙合增加量显著大于对照组。在咀嚼和进食过程中，使用粘结式舌侧矫治器的组比使用传统舌侧矫治器的组表现出明显更好的接受度。
在早期开颌治疗中，这两种矫治器导致的覆牙合增加量相似。治疗一周或更短时间后，92.5%的儿童已适应矫治器。
