. 2021 Jul 15;18:22. doi: 10.18502/fid.v18i22.6932

Table 3.

Comparison of the changes in the number of pulp stones after two years in the maxilla and mandible and left and right sides in the two groups

Groups			N	Percentage of frequency change	Mean	P
Orthodontic	Maxilla	Increase	11	7.4	6	0.002
	Maxilla	No change	137	92.56		0.002
	Mandible	Increase	13	8.7	7	0.001
	Mandible	No change	135	91.21		0.001
	Right	Increase	10	6.75	5.5	0.002
	Right	No change	138	93.24		0.002
	Left	Increase	18	12.16	9.5	0.001
	Left	No change	130	87.83		0.001
Non-orthodontic	Maxilla	Increase	1	1.35	1	0.317
	Maxilla	No change	73	98.64		0.317
	Mandible	Increase	1	1.35	1	0.317
	Mandible	No change	73	98.64		0.317
	Right	Increase	2	2.7	1.5	0.157
	Right	No change	72	97.29		0.157
	Left	Increase	0	0	0	0.999
	Left	No change	74	100		0.999