ABSTRACT

This case report describes the protocol employed in the treatment of a patient with Class II subdivision malocclusion, with sagittal, transverse, and occlusal disharmonies.

Treatment included the expansion of the maxilla with a banded Hyrax appliance over a period of 14 days. After a retention period, the device was removed and a stainless steel transpalatal arch was attached. The maxillary arch was bonded with MBT prescription brackets, and distalization of the left maxillary first molar commenced on a 0.01630.022-inch stainless steel archwire supported by a miniscrew for indirect anchorage. After 4.7 mm of molar distalization, a Nance appliance with a bite plane was placed, and the mandibular arch was bonded to continue treatment, which lasted 18 months. Mandibular and maxillary fixed retainers were placed at the end of active treatment.

Pretreatment and posttreatment records showed that vertical and sagittal skeletal cephalometric findings were stable.

A nonextraction and miniscrew anchorage approach for distalization is an effective treatment option for dental Class II correction.