Table 2.

Mean values of the frequency data (percentage of positive answers for the different AB behaviors over the 7-day observation period)—comparison among studies.

	Bracci et al., 2018 [8]	Zani et al., 2019 T1 [10]	Zani et al., 2019 T2 [10]	Pereira NC et al., 2020 [18]	Câmara-Souza et al., 2020 [13]	Zani et al., 2021 [14]	Dias et al., 2021 T1 [12]	Dias et al., 2021 T2 [12]	Dias et al., 2021 T3 [12]	Emodi-Perlman et al., 2021 [16]	Bucci et al., 2022 [19]
	N = 46	N = 30	N = 30	N = 38	N = 69	N = 153	N = 31	N = 31	N = 31	N = 106	N = 151
Activity	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency	Mean frequency
Relaxed jaw muscles	71.7	62	74	41.4	61,6	76.4	62.5	67.8	69.0	59.7	62.5
Teeth contact	14.5	20	11	40.9	18.6	13.6	19.1	16.2	14.7	20.2	18.8
Mandible bracing	10.0	14	13	5.9	13.1	7.0	17.2	16.9	15.8	13.7	14.3
Teeth clenching	3.7	3	2	11.2	5.9	2.5	4.9	2.3	1.9	5.7	3.6
Teeth grinding	0.1	1	1	0.6	0.8	0.5	0.3	0.3	0.3	0.6	0.5
Gender differences	No	No	No	No	Yes	Yes	///	///	///	No	///