Nonsurgical Orthodontic Treatment of a Severe Open Bite Case Using Miniscrews with Modified Multiloop Edgewise Arch Wire Technique

Table 1

Treatment sequence and biomechanical plan.

Maxilla	Mandible
Band molars, bond maxillary arch, and start leveling with inch NiTi arch wires	Band molars, bond mandibular arch, and start leveling with inch NiTi arch wires
Progress to inch ACS Niti	Progress inch RCS Niti
Surgical hook between the central and lateral incisors right and left was crumbed	Surgical hook between the central and lateral incisors right and left was crumbed
Occlusal splint between upper 6 and 7 in both sides was cemented
TAD inserted between upper 6 and 5 buccally and 6 and 7 palatally in both sides and started intrusion using an elastic chin
Box elastic ¼ inch, 3.5 oz from the surgical hook and canine in the upper arch to the surgical hook and canine in the lower arch on both sides
Continue with 0.017 × 0.025 inch ACS NiTi arch wire and box elastic ¼ inch, 3.5 oz from the surgical hook and canine in the upper arch to the surgical hook and canine in the lower arch in both sides	Continue with inch RCS NiTi arch wire
Progress to inch SS with open elastic chine from 6 to 6 to close spaces	Progress to inch SS with open elastic chine from 6 to 6 to close spaces
Continue using elastic chine for intrusion
Continue with inch SS with finishing bends	Continue with inch SS with finishing bends
Debond and vacuum-formed retainer	Debond and fixed lingual retainer from 3–3 with a vacuum-formed retainer
Six months recall appointment for retention check	Six months recall appointment for retention check

ACS: accentuated reverse curve of Spee, NiTi: nickel-titanium, RCS: reverse curve of Spee, TAD: temporary anchorage device, SS: stainless steel.