Treatment of maxillary deficiency by miniscrew implants – a case report

Abstract

This case report illustrates the treatment of a 12-year-old boy with maxillary deficiency using miniscrew implants. The patient rejected the use of extraoral appliances and future surgical correction; therefore the patient was treated using Class III elastics connected from two mandibular miniscrew implants to an upper removable appliance. The miniscrews were inserted between the permanent canines and first premolars under local anaesthesia. The treatment lasted for 8 months after which favourable correction of the malocclusion was observed. The SNA and ANB angles increased by 3 degrees and the IMPA increased by 4 degrees . This case demonstrates that miniscrews can be a suitable alternative method to extraoral appliances and possibly surgery in mild Class III cases.

Treatment of Maxillary Deficiency by Miniplates: A Case Report

“…In most cases, lingual tipping is an undesirable side effect and can cause crowding [22]. In a case report miniscrews [23] have been used for treatment of maxillary deficiency. One of the limitations of miniscrew is their loosening, which can be distressing for the clinician and the patient.…”

The Effects of Maxillary Protraction with or without Rapid Maxillary Expansion and Age Factors in Treating Class III Malocclusion: A Meta-Analysis

“…Several techniques have been described to effectively protract the maxilla, including the use of a face mask (FM) or reverse chin cup and the application of direct force via ankylosed primary canines[7–13]. In addition, miniplate and miniscrew implants have also been used to provide the necessary orthodontic anchorage in patients with retrusive maxillary dentition[14–19]. The treatment of a skeletal Class III malocclusion is challenging for orthodontics, primarily because of the concave profile of the midface and the unpredictable growth potential of the maxilla coupled with potentially unfavorable mandibular growth.…”

Effects of placement angle and direction of orthopedic force application on the stability of orthodontic miniscrews

“…1 TADs are used not only for conventional tooth movement, but in recent years, they have also been used in the application of dentofacial orthopedics. A wider range of TAD applications has been introduced, such as anchorage for orthopedic traction using intermaxillary elastics, [2][3][4][5] anchorage for face masks to correct skeletal Class III crossbite, 6,7 assistance with rapid palatal expansion of the maxilla in adults, 8,9 and anchorage for intermaxillary fixation following various reduction and orthognathic surgeries.…”