pISSN 2234-7518
eISSN 2005-372X

Table. 3.

Comparison of cephalometric measurements between the two groups

Variable CPP (n = 70) Control (n = 48) p-value
Linear measurements (mm)
Anterior cranial base length (N-S) 66.4 ± 3.0 66.2 ± 3.6 0.850
Posterior cranial base length (S-Ba) 33.0 ± 3.0 32.0 ± 2.8 0.094
Maxillary length (ANS-PNS) 48.8 ± 2.8 47.7 ± 2.5 0.036*
Mandibular ramus height (Ar-Go) 43.3 ± 3.8 41.0 ± 3.6 0.002**
Mandibular corpus length (Go-Me) 70.2 ± 4.0 68.4 ± 4.3 0.021*
Total mandibular length (Ar-Me) 99.6 ± 4.8 97.5 ± 4.5 0.022*
Anterior facial height (N-Me) 115.4 ± 4.8 115.3 ± 6.9 0.971
Posterior facial height (S-Go) 73.5 ± 4.3 70.3 ± 4.3 0.001**
Facial height ratio (%) 63.7 ± 3.8 61.1 ± 4.7 0.001**
Wits appraisal (Wits) –1.5 ± 3.6 –2.2 ± 3.3 0.284
Angular measurements (°)
Cranial base angle (N-S-Ar) 125.9 ± 5.2 125.1 ± 5.9 0.468
Ramal angle (SN-ArGo) 94.6 ± 4.0 90.6 ± 10.1 0.012*
Gonial angle (Ar-Go-Me) 121.1 ± 5.7 124.6 ± 7.1 0.004**
Mandibular plane angle (SN-GoMe) 35.8 ± 4.9 39.0 ± 6.5 0.003**
Maxilla-cranial base relation (SNA) 79.9 ± 3.5 78.1 ± 3.7 0.008**
Mandible-cranial base relation (SNB) 76.3 ± 3.0 75.1 ± 4.0 0.066
Maxilla-mandible relation (ANB) 3.6 ± 2.4 3.0 ± 2.2 0.150

Values are presented as mean ± standard deviation.

CPP, Central precocious puberty.

p-value were calculated by the independent t-test.

As a total of 17 cephalometric variables were considered in an equal number of t-tests, a p-value of 0.05/17 was applied to avoid the chance of error type I errors.

*p < 0.05, **p < 0.01.

Korean J Orthod 2020;50:181~187 https://doi.org/10.4041/kjod.2020.50.3.181
© Korean J Orthod
Copyright © The Korean Association of Orthodontists. / Powered by INFOrang Co., Ltd