Evaluation of anteroposterior and vertical stability 25 years after Angle class II division 1 treatment with cervical headgear

Purpose The goal was to investigate long-term (minimum 20 years) skeletal and dental changes in Angle class II division 1 patients treated with full-fixed orthodontic appliances and cervical pull headgear. Methods A longitudinal retrospective study was performed with 20 orthodontic patients, who wer...

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Bibliographic Details
Published in:Journal of orofacial orthopedics 2021-11, Vol.82 (6), p.382-390
Main Authors: Braga Santos, Sara Ramos, Martins de Araújo, Telma, Vogel, Carlos Jorge, Bastos de Oliveira, Márcio, Vieira Bittencourt, Marcos Alan, Braga, Emanuel
Format: Article
Language:English
Subjects:
Cephalometry
Dentistry
Extraoral Traction Appliances
Humans
Malocclusion, Angle Class II - diagnostic imaging
Malocclusion, Angle Class II - therapy
Mandible
Medicine
Oral and Maxillofacial Surgery
Original Article
Orthodontic Appliances, Fixed
Retrospective Studies
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Summary:Purpose The goal was to investigate long-term (minimum 20 years) skeletal and dental changes in Angle class II division 1 patients treated with full-fixed orthodontic appliances and cervical pull headgear. Methods A longitudinal retrospective study was performed with 20 orthodontic patients, who were treated exclusively by one experienced clinician and whose treatment had been completed a minimum of 20 years ago. Former patients who had been treated from the mid-1970s to the early 1990s were actively sought. After the recall, 20 patients agreed to participate in the study. Lateral cephalometric radiographs at pretreatment (T1), posttreatment (T2), and long-term follow-up (T3) were digitized and measurements were performed. Angular variables used were SNA, SNB, ANB, OcclPl-FH, PalPl-FH, GoMe-FH, 1‑NA, and Y axis. Linear measures were A‑NPerp, Pg-NPerp, 1‑NAmm, Wits, and LAFH. Results From T1 to T2, a significant reduction ( p  
ISSN:1434-5293
1615-6714
DOI:10.1007/s00056-020-00277-9