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. 2013 Jun 7;83(6):937–942. doi: 10.2319/022813-170.1

Figure 1.

Figure 1. Differential moment approach to space closure. (a) Base archwire with NiTi intrusion arch tied anteriorly mesial to the lateral incisors and NiTi retraction coil spring from first molar to the canine. (b) Mushroom loop used to close space mesial to the canine. (c) Completed space closure at T2.

Differential moment approach to space closure. (a) Base archwire with NiTi intrusion arch tied anteriorly mesial to the lateral incisors and NiTi retraction coil spring from first molar to the canine. (b) Mushroom loop used to close space mesial to the canine. (c) Completed space closure at T2.