The duration of pubertal growth peak among three skeletal classes.
The duration of pubertal growth peak among three skeletal classes.
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DOI：
10.1590/2177-6709.21.5.067-074.oar
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发表时间：
2016-09
影响因子：
--
通讯作者：
Shaikh A
中科院分区：
文献类型：
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作者：
Jeelani W;Fida M;Shaikh A
青春期生长高峰与下颌骨长度的快速增长密切相关，并提供了广泛的治疗修改。 本研究的目的是确定和比较三种骨骼类型的青春期生长高峰的平均发病年龄和持续时间。 对230名具有生长潜力的受试者（110名男性，120名女性）进行了回顾性横断面研究。根据上颌骨和下颌骨之间建立的矢状关系，将受试者分为三类（I类= 81，II类= 82，III类= 67）。采用Baccetti法记录颈椎成熟度。在CS3和CS4的平均年龄和CS3-CS4的年龄间隔之间的男孩和女孩和三个骨骼类进行了比较。 青春期生长高峰发生在女孩比男孩平均早4个月（p = 0.050）。I类受试者青春期生长高峰的平均持续时间为11个月，II类受试者为7个月，III类受试者为17个月。组间差异非常显著（Cohen's d > 0.08）。然而，在三种骨骼类型中，青春期生长高峰开始的时间没有显著差异（男孩p = 0.126，女孩p = 0.262）。 女孩平均比男孩早4个月进入青春期生长高峰。此外，与I类受试者相比，II类受试者的青春期生长高峰持续时间平均短4个月，III类受试者长6个月。
Pubertal growth peak is closely associated with a rapid increase in mandibular length and offers a wide range of therapeutic modifiability. The aim of the present study was to determine and compare the mean ages of onset and duration of pubertal growth peak among three skeletal classes. A retrospective cross-sectional study was conducted using lateral cephalograms of 230 subjects with growth potential (110 males, 120 females). Subjects were categorized into three classes (Class I = 81, Class II = 82, Class III = 67), according to the sagittal relationship established between the maxilla and the mandible. The cervical vertebral maturation stage was recorded by means of Baccetti's method. The mean ages at CS3 and CS4 and the CS3-CS4 age interval were compared between boys and girls and among three skeletal classes. Pubertal growth peak occurred on average four months earlier in girls than boys (p = 0.050). The average duration of pubertal growth peak was 11 months in Class I, seven months in Class II and 17 months in Class III subjects. Interclass differences were highly significant (Cohen's d > 0.08). However, no significant difference was found in the timing of pubertal growth peak onset among three skeletal classes (p = 0.126 in boys, p = 0.262 in girls). Girls enter pubertal growth peak on average four months earlier than boys. Moreover, the duration of pubertal growth peak is on average four months shorter in Class II and six months longer in Class III subjects as compared to Class I subjects.