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Skeletal Class III Malocclusion with Lateral Open Bite and Facial Asymmetry Treated with Asymmetric Lower Molar Extraction and Lingual Appliance: A Case Report

Author

Listed:
  • Vo Truong Nhu Ngoc

    (School of Odonto Stomatology, Hanoi Medical University, Hanoi 100000, Vietnam)

  • Nguyen Thi Thu Phuong

    (School of Odonto Stomatology, Hanoi Medical University, Hanoi 100000, Vietnam)

  • Nguyen Viet Anh

    (Viet Anh Orthodontic Clinic, Hanoi 100000, Vietnam)

Abstract

A skeletal Class III malocclusion with open bite tendency is considered very difficult to treat orthodontically without surgery. This case report describes the lingual orthodontic treatment of an adult skeletal Class III patient with mandibular deviation to the left side, lateral open bite, unilateral posterior crossbite, zero overbite and negative overjet. The lower incisors were already retroclined to compensate with the skeletal discrepancy. The patient was treated by asymmetric molar extraction in the mandibular arch to retract the lower incisors and correct the dental midline, with the help of intermaxillary elastics. Lingual appliance was used with over-torqued lower anterior teeth’s brackets to control the torque of mandibular incisors. After a 30-month treatment, satisfactory smile and facial esthetics and good occlusion was achieved. A 12-month follow-up confirmed that the outcome was stable. Asymmetric molar extraction could be a viable option to retract mandibular incisors in Class III malocclusion with lower dental midline deviation.

Suggested Citation

  • Vo Truong Nhu Ngoc & Nguyen Thi Thu Phuong & Nguyen Viet Anh, 2021. "Skeletal Class III Malocclusion with Lateral Open Bite and Facial Asymmetry Treated with Asymmetric Lower Molar Extraction and Lingual Appliance: A Case Report," IJERPH, MDPI, vol. 18(10), pages 1-13, May.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:10:p:5381-:d:557165
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