Model Developed to Predict Recurrence after Double Chin Surgery
MEDICALUPJOURNAL, by Young-Goo Yang
A ground-breaking model has been created to accurately predict the likelihood of recurrence after double chin surgery, according to a study recently published in the prestigious NATURE Scientific Reports. Titled “Prediction of sagittal jaw point relapse following double jaw surgery using machine learning,” the study was conducted by a research team led by Professor Kim Young-ho of Ajou University and Professor Hwa-seong Chae of Chung-Ang University.
In order to develop the model, the research team took lateral cephalometric radiographs of 227 patients who had undergone orthognathic surgery on four different occasions: before starting treatment, before surgery, after completing treatment, and at a follow-up stage. Using these images, 55 length and angle variables needed for machine learning were measured.
Based on the measured data, the team successfully built a predictive model using machine learning algorithms. Remarkably, when this model was applied to real clinical data, it accurately predicted a 90% chance of jaw relapse.
This is the first time that a model utilizing machine learning has been developed and published to predict the possibility of recurrence after double chin surgery, as stated by the research team.
Significantly, the study revealed that the direction of jawbone movement was a more important factor in predicting recurrence than the amount of surgery performed. By assessing the risk of relapse based on the degree of rotational movement in the lower jaw, the researchers believe that recurrence can be significantly reduced by creating personalized surgical plans for individual patients.
Professor Chae emphasized the potential impact of this breakthrough, stating, “Many individuals who suffer from misaligned jaws or severe skeletal defects have concerns about orthognathic surgery due to its high cost and potential complications such as facial paralysis and excessive bleeding. By predicting the likelihood of recurrence, we can provide valuable assistance in developing appropriate treatment plans.”
Professor Kim added, “Severe malocclusion can cause daily discomfort, particularly during meals. Double chin surgery is an effective procedure for adults after their growth is complete, but during puberty, it is recommended to address this issue through pronunciation training.”
From left, Ajou University Kim Young-ho and Chung-Ang University Professor Chae Hwa-seong
[메디칼업저버 양영구 기자] A model has been developed to predict the possibility of recurrence after double chin surgery.
The results of this study were published in the sister journal NATURE Scientific Reports under the title ‘Prediction of sagittal jaw point relapse following double jaw surgery using machine learning.’
The research team of Professor Kim Young-ho (Department of Orthodontic Dentistry) at Ajou University and Professor Hwa-seong Chae (Department of Orthodontic Dentistry) at Chung-Ang University took lateral cephalometric radiographs on 227 patients who underwent orthognathic surgery △ before starting treatment △before surgery △after completing the treatment 4 times.Through filming, we measured 55 length and angle variables necessary for machine learning.
Based on this measured data, a predictive model was developed through machine learning, and as a result of applying actual clinical data, a 90% chance of the jaw coming forward again was predicted.
The research team explained that this is the first time a model has been published that uses machine learning to predict the possibility of recurrence after double chin surgery.
In particular, it was revealed that the direction of movement of the jawbone was a more important factor than the amount of surgery, and it was significant, by predicting the risk of recurrence according to the amount of rotational movement in the lower jaw, that recurrence could occur. can be significantly reduced by creating a customized surgical plan for each patient.
Professor Chae said, “Many people who suffer from misaligned jaws or a severe skeletal defect are interested in orthognathic surgery, but hesitate because of the high cost, risks such as facial paralysis and excessive bleeding, as well as the possibility of it happening again.” He added, “If the possibility of it happening again can be predicted, “It will be of practical help in establishing an appropriate treatment plan,” he said.
Professor Kim said, “If malocclusion is severe, there may be discomfort in daily life such as eating. Double chin surgery is a surgery that can be performed in adults when growth is complete, and is recommended to be resolved through pronunciation training in during puberty.”.
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