The application provides a lightweight orthodontic
efficacy prediction method and
system based on
semantics and three-dimensional optimization, relates to the technical field of orthodontic
efficacy prediction, and comprises the following steps: obtaining facial images and cephalometric data of historical orthodontic patients before and after orthodontic treatment to form a
training set, constructing a structured orthodontic semantic prompt, using the pre-training
diffusion model as the basis, using the
training set images and the semantic prompt, and fine-tuning the prediction model through the LoRA technology; inputting the orthodontic pre-image and data of a target patient into the image to the prediction model, generating a two-dimensional facial image after orthodontic treatment, and performing three-dimensional reconstruction; optimizing the
geometric consistency with the side image, and outputting a three-dimensional model for visual display. Through the combination of the LoRA fine-tuning technology, the structured medical semantic prompt and the three-dimensional
geometric consistency optimization, the application can
train an efficient prediction model under a small amount of
paired data, reduce the calculation cost of model training and reasoning, adapt to the deployment of a clinical environment, and realize the
controllability and
interpretability of the generated results through the medical semantic prompt.