Treatment performed
by single operator 		Post-treatment neurosensory
testing (NST) performed
by single examiner		 Post-treatment NST
not performed 		Specific age
group treated 		Sex scission Low objectives
number
Smith [21] + + - - - -
Nakayama et al. [35] +
Ghaeminia et al. [43] - + - - - -
Bhat and Cariappa [44] + + - - - -
Jerjes et al. [47] +
Guerrouani et al. [49] +
Landi et al. [50] - + - - + (n = 9)
Wang et al. [52] + - + + (20 - 30) + (Females only) -
Dolanmaz et al. [56] +