. Author manuscript; available in PMC: 2006 Apr 1.

Published in final edited form as: J Oral Maxillofac Surg. 2006 Apr;64(4):610–619. doi: 10.1016/j.joms.2005.12.008

Table 4.

Bilateral osteotomy: displacement during muscle stimulation

	Right distraction site			Left distraction site
Muscle stimulation	SL	IL	IM	SL	IL	IM
Left masseter: polarity	− (8/11^†)	+ (10/11)^*	+ (9/10)^*	+ (5/8)	− (10/11)^*	+ (7/9)
mobility (mm, mean ± SD)	0.06±0.09	0.04±0.05	0.11±0.27	0.17±0.13	0.19±0.14	0.10±0.10
Right masseter: polarity	+ (9/12)	− (10/12)^*	+ (11/12)^**	− (6/8)	+ (7/10)	+ (7/9)
mobility (mm, mean ± SD)	0.13±0.14	0.11±0.12	0.12±0.12	0.04±0.04	0.05±0.08	0.08±0.15
Left medial pterygoid: polarity	+ (10/11)^*	− (10/11)^*	+ (8/11)	+ (6/8)	− (4/8)	− (9/10)
mobility (mm, mean ± SD)	0.09±0.13	0.04±0.06	0.05±0.10	0.31±0.47	0.10±0.04	0.22±0.15
Right medial pterygoid: polarity	+ (6/11)	− (8/12)	− (11/12)^**	+ (8/10)	− (10/10)^**	− (6/9)
mobility (mm, mean ± SD)	0.05±0.05	0.04±0.04	0.23±0.16	0.10±0.09	0.11±0.16	0.15±0.26

^†

fraction of pigs showing the indicated polarity (−, shortening, +, lengthening);

polarity by binomial test, p<0.05;

^**

p<0.01.