Stevanac-Papić J
Stomatoloskog Fakulteta, Sveucilisa u Zagrebu.
Bilt Udruz Ortodonata Jugosl. 1991;24(2):101-8.
Purpose of this study is to evaluate psychical maturity of two orthodontic groups of examinees. Sample consists of 640 children: 320 are (E) orthognathous (160 girls and 160 boys) and 320 are (PS) dysgnathous (160 girls and 160 boys). They are classified according to their age (7-14 years) into 32 groups, 20 examinees each. The dysgnathous subjects have a specific malocclusion; early tooth loss or secondary crowding. The evaluation of psychical maturity is based on the general success in school and the results of the intelligence test of the "Raven's Progressive Matrices", both are expressed in points. The results are statistically treated and presented in tables and graphs. PS children, in the analyzed sample, develop psychically slower than E children. PS examinees have lower score (in points) of general success in school, as well as in results of the intelligence test. Although the difference in the arithmetic means obtained by the results of the intelligence test between E and PS subjects is statistically significant, (t = 6.76; P = 0.009), clinically it is not considered significant and it is not interpretable, (as when expressed in points it amounts to only two points).
本研究的目的是评估两组正畸检查对象的心理成熟度。样本包括640名儿童：320名是（E组）颌骨正常的儿童（160名女孩和160名男孩），320名是（PS组）颌骨发育异常的儿童（160名女孩和160名男孩）。他们按年龄（7至14岁）分为32组，每组20名检查对象。颌骨发育异常的对象有特定的错牙合畸形；早期牙齿脱落或继发性牙列拥挤。心理成熟度的评估基于学业总体成绩和“瑞文渐进性矩阵”智力测试的结果，两者均以分数表示。对结果进行了统计学处理，并以表格和图表形式呈现。在分析的样本中，PS组儿童的心理发育比E组儿童慢。PS组检查对象在学业总体成绩以及智力测试结果中的得分（以分数计）较低。虽然E组和PS组对象在智力测试结果中获得的算术平均值差异具有统计学意义（t = 6.76；P = 0.009），但在临床上并不认为该差异具有显著性且无法解释（因为以分数表示时仅相差两分）。
