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Orthodontic management of angle Class III malocclusion with severe anterior crowding Retyoningrum, Gita; Paskalin, Zenith; Sayuti, Elih; Laviana, Avi; Evangelina, Ida Ayu; Mardiati, Endah
Majalah Kedokteran Gigi Indonesia Vol 11, No 2 (2025): August
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.105794

Abstract

Dental malocclusion Class III is a challenging condition characterized by a Class III molar relationship, and it has a specific anterior condition according to Dewey classification. In some cases, Class III dental malocclusion with skeletal Class I may present with a convex rather than a concave profile. Several methods are available to correct a convex profile, including extraction, full arch distalization using TADs, intermaxillary elastic Class II, anterior segment retraction, and others. Combining more than one of these methods can be effective in correcting a convex profile. An 18 year-old woman presented to RSGM Universitas Padjadjaran with a diagnosis of Angle Class III dental malocclusion, skeletal Class I with a convex profile, normal maxillary incisor inclination, asymmetric profile, severe anterior crowding in both arches, minimal overjet, anterior crossbite, upper midline shift, clockwise rotation and high-angle mandible, and lingual inclination of the mandibular incisors. The patient was treated with a Roth prescription fixed orthodontic appliance. Maxillary and mandibular first premolars were extracted to create space, and lacebacks were applied to the canines to correct severe anterior crowding]. Bilateral intermaxillary Class III elastics were used to maintain the facial profile and prevent it from becoming concave. Treatment was completed in 18 months, achieving a Class I molar relationship, midline correction, optimal overbite and overjet, and preservation of the facial profile. This case report presents the orthodontic management of Angle Class III malocclusion with skeletal Class I and severe anterior crowding, successfully treated with first premolar extractions while maintaining a convex profile.
The utilization of infra-zygomatic crest (izc) bone screw in non-extraction treatment of class II malocclusion: A Case Report Andriani, Vina; Paskalin, Zenith; Laviana, Avi; Evangelina, Ida Ayu; Mardiati, Endah; Sayuti, Elih
Padjadjaran Journal of Dentistry Vol 37, No 3 (2025): November 2025
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol37no3.62842

Abstract

Introduction: Temporary Anchorage Devices (TADs), absolute anchorage systems with minimal side effects on orthodontic mechanical movements, can be alternatives to wider non-surgical, non-extraction, and non-compliance treatments. The placement of extra-radicular mini-screws at the infra zygomatic crest (IZC) is one of the most commonly used approaches for skeletal anchorage. Maxillary arch distalization with IZC can be effectively performed in Class II malocclusion patients with large overjet using non-extraction treatment, especially due to increasing patient demands to avoid extractions. The aim of this case report is to demonstrate the effectiveness of infrazygomatic crest (IZC) extra-radicular TADs for maxillary distalization in a Class II malocclusion cases treated without extractions. Case report: A 16-year-old female patient came to the Orthodontic Clinic with the complaint of forward upper teeth, Class II Angle malocclusion and Class I skeletal with a convex facial profile, deep overbite, overjet 6 mm, posterior scissor bite, diastema between teeth 32-33, and deep curve of Spee. The patient was treated with non-extraction fixed orthodontics using a self-ligating system prescription, utilizing extra radicular Temporary Anchorage Devices (TADs) at the infra zygomatic crest measuring 2 x 12 mm for maxillary retraction. Following the maxillary retraction treatment, successful outcomes were achieved as the overjet decreased from 6 mm to 3 mm; Class I molar and canine relationships were established; and the distance from I to NA was reduced from 11 mm to 5 mm. Conclusion: The clinical use of infra-zygomatic crest (IZC) bone screw in non-extraction treatment of Class II malocclusion case was successfully conducted with non-extraction fixed orthodontic treatment.