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. 2017 Nov 10;33(3):489–495. doi: 10.1007/s10103-017-2381-9

Fig. 1.

Fig. 1

Decortication of the bone in the area between forth premolar (P4) and first molar (M1) for mini-implant insertion. a Marked position of the MI. b Er:YAG laser tip. c A surgical drill. d Piezosurgery tip. e Measuring PTV by Periotest device