Non-surgical treatment of anterior open bite using miniscrew implants with posterior bite plate

Abstract Objective: To evaluate the effectiveness of miniscrew anchorage for intrusion of the posterior dentoalveolar region to correct skeletal open bite. Materials and Methods: The study was comprised of 12 patients (aged 14.3 to 27.2 years; mean 18.7 years) with anterior open bites. All the patients presented a Class II skeletal pattern and excessive posterior growth. Self-drilling miniscrew implants were inserted into the posterior midpalatal area and the buccal alveolar bone between the lower molars. A transpalatal and a lingual arch were used to maintain the molars on each side in order to avoid overrotation during intrusion. A force of 150 g was applied to the microscrews on each side to intrude the posterior teeth. Lateral cephalograms of all 12 patients were taken preintrusion and immediately after completion of the intrusion. The cephalometric films were measured and compared. Results: The results showed that the anterior open bites in 12 patients were all corrected in a mean of 6.8 months. Overbite increased by a mean of 4.2 mm (P < .001), from −2.2 mm in preintrusion to 2.0 mm in postintrusion. The maxillary and mandibular first molars were intruded for an average of 1.8 mm (P < .001) and 1.2 mm (P < .001), respectively. The mandibular plane angle was reduced by 2.3° (P < .001), which led to a counterclockwise rotation of the mandible with a significant decrease in the anterior facial heights (mean of 1.8 mm; P < .001). Conclusion: Miniscrew anchorage has the advantages of being a simpler procedure, being minimally invasive, and requiring minimal patient cooperation.

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Surgical treatment for dentofacial deformities: class III patient with mandibular laterodeviation and anterior open bite

International Journal of Oral and Maxillofacial Surgery ◽

10.1016/j.ijom.2019.03.594 ◽

2019 ◽

Vol 48 ◽

pp. 191

Author(s):

R. Cota ◽

A. Goto

Keyword(s):

Surgical Treatment ◽

Open Bite ◽

Class Iii ◽

Anterior Open Bite ◽

Dentofacial Deformities

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Stability Following Combined Orthodontic-surgical Treatment for Skeletal Anterior Open Bite – a Cephalometric 15-Year Follow-up Study

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie ◽

10.1007/s00056-007-0632-2 ◽

2007 ◽

Vol 68 (3) ◽

pp. 245-256 ◽

Cited By ~ 30

Author(s):

Yun Ding ◽

Tian-Min Xu ◽

Bettina Lohrmann ◽

Nils-Claudius Gellrich ◽

Rainer Schwestka-Polly

Keyword(s):

Surgical Treatment ◽

Open Bite ◽

Anterior Open Bite ◽

Follow Up Study

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Molar Intrusion using TADs in the Management of an Anterior Open Bite: A Case Report

Dental Update ◽

10.12968/denu.2021.48.3.193 ◽

2021 ◽

Vol 48 (3) ◽

pp. 193-199

Author(s):

Ariane Sampson ◽

Ali Payam Sattarzadeh

Keyword(s):

Orthodontic Treatment ◽

Open Bite ◽

Orthodontic Appliances ◽

Anterior Open Bite ◽

Temporary Anchorage Devices ◽

Molar Intrusion ◽

Fixed Orthodontic Appliances ◽

Skeletal Change ◽

Non Surgical Treatment ◽

Risk Of Relapse

The prevalence of an anterior open bite ranges in the literature from 1.5% to 11%, with great racial variance. Stable non-surgical treatment of an anterior open bite is notoriously unpredictable, with a high risk of relapse and an uncertainty of true skeletal change. Temporary anchorage devices (TADs) are increasingly used to enhance and simplify orthodontic biomechanics, enabling clinicians to push the boundaries of orthodontic treatment. In anterior open bite cases, TADs may be used predictably for molar intrusion and improvement of the overbite. We describe a 16-year-old male with a Class I incisal relationship on a skeletal I base and increased vertical proportions, complicated by a 4-mm anterior open bite secondary to a previous digit sucking habit. Treatment involved fixed orthodontic appliances on an extraction basis, and molar intrusion using TADs. TADs provide a safe and effective alternative to reducing an anterior bite in a patient whose growth is complete. CPD/Clinical Relevance: Understanding the options for the treatment of an anterior open bite and the limits of orthodontic camouflage will help clinicians provide their patients with the necessary information with which to make informed decisions.

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