Graduate Program in Orthodontics, School of Pindamonhangaba.
Braz J Otorhinolaryngol. 2011 Sep-Oct;77(5):600-4. doi: 10.1590/s1808-86942011000500011.
Children with hypertrophic tonsils and adenoids may have adverse effects on dental occlusion, which tend to worsen during the growth period. Diagnosis and early treatment is essential.
Prospective clinical study to compare the cephalometric measurements before and after adenotonsillectomy in mouth breathing patients.
We had 38 patients of both genders, aged between 7 and 11 years in our sample, broken down into: oral group, 18 patients with obstructive hypertrophy of pharyngeal tonsil and/or palate grade 3 or 4; control group, 20 patients with normal breathing. Angular and linear dental measurements were compared between the groups in a 14 months interval. We used the "t" Student and Wilcoxon tests for unpaired samples, at 5% significance, for statistical purposes.
The sagittal position and axial angle of the lower incisors increased significantly in the group with oral breathing, the sagittal position of the upper incisors increased significantly in the oral group, which still had a significant increase in overbite.
Adenotonsillectomy was very effective in improving some dental measurements, with benefits to growing patients preventing malocclusions from becoming difficult to treat or permanent.
患有肥大扁桃体和腺样体的儿童可能会对牙齿咬合产生不良影响,这种影响在生长期间往往会恶化。诊断和早期治疗至关重要。
对张口呼吸患者行扁桃体腺样体切除术前后的头影测量进行前瞻性临床研究。
我们的样本包括 38 名性别为男/女的 7 至 11 岁患者,分为:口呼吸组,18 例咽扁桃体和/或腭肥大,气道阻塞程度为 3 或 4 级;对照组,20 例呼吸正常。在 14 个月的间隔内,比较两组之间的角度和线性牙齿测量值。为了进行统计学分析,我们使用了“t”学生和威尔科克森无配对样本检验,显著性水平为 5%。
口呼吸组的下颌切牙矢状位置和轴向角度显著增加,上切牙矢状位置在口呼吸组中显著增加,覆盖仍有显著增加。
扁桃体腺样体切除术对改善某些牙齿测量非常有效,对生长中的患者有好处,可以预防因难以治疗或永久性错合而导致的咬合不正。