Tooth agenesis and craniofacial morphology in pre-orthodontic children with and without morphological deviations in the upper cervical spine

Table 1 Mean (X-bar) and SD of number of tooth agenesis and craniofacial morphology in children with and without upper spine morphological deviations

	With upper spine deviations(n = 19)		Without upper spine deviations(n = 107)		Group
Variable	X-bar	SD	X-bar	SD	P
Age	11.9	1.2	11.5	2	NS
No. ageneses	2.2	1.6	1.94	1.2	NS
n-s-ar	123.4	4	123.5	4.7	NS
n-s-ba	130	4.3	130.2	4.4	NS
ML/RLar	121	4.9	123.1	6.5	NS
s-n-ss	81.5	3.4	80.5	4	NS
s-n-pg	79.5	3.2	78.7	3.9	NS
ss-n-pg	2	1.7	1.8	2.6	NS
NSL/NL	8	2.7	7.1	3.6	NS
NSL/ML	30.4	4.5	31.6	5.6	NS
NL/ML	22.4	4.3	24.5	5.4	NS
Overjet	5	2.4	4.4	2.2	NS
Overbite	3.8	2	3.2	1.7	NS

NSL: Nasion-Sella line; NL: Nasal line; ML: Mandibular line; NS: Not significant, unpaired t test.