Table 3.

Mean ± SD values of the different parameters characterizing the performance of the subject, recorded with and without Bite correction, in the open and contact position.

Condition	Variable	Position
		Open1	Open1 vs Contact	Contact	Contact vs Open2	Open2	Open2 vs Open1
Bite OFF	Performance index	1.84 ± 0.57	P < 0.0005	1.69 ± 0.49	P < 0.0005	1.82 ± 0.57	NS
OFF vs ON		NS		P < 0.0005		P < 0.03
Bite ON		1.85 ± 0.60	P < 0.0005	2.24 ± 0.55	P < 0.0005	1.88 ± 0.57	NS
Bite OFF	Scanning rate	13.22 ± 2.23	P < 0.0005	12.59 ± 2.12	NS	12.8 ± 2.35	P < 0.003
OFF vs ON		NS		P < 0.0005		NS
Bite ON		13.08 ± 2.25	P < 0.0005	14.48 ± 1.96	P < 0.0005	12.79 ± 2.43	P < 0.021
Bite Average OFF/ON	ER	0.24 ± 0.15	NS	0.24 ± 0.17	P < 0.0005	0.16 ± 0.16	P < 0.001
Bite OFF	Mydriasis (average)	1.39 ± 0.32	P < 0.0005	0.78 ± 0.30	P < 0.0005	1.38 ± 0.32	NS
OFF vs ON		NS		P < 0.0005		NS
Bite ON		1.39 ± 0.32	P < 0.0005	1.78 ± 0.43	P < 0.0005	1.45 ± 0.35	NS

PI performance index, SR scanning rate, ER error rate.