Add Dental Braces - V4.0

Addressed "airbrushed appearance" on facial skin. Version 4 addressed this issue by incorporating regularization images into the dataset to specifically rectify this problem. A/B testing conducted after training demonstrated substantial improvement in this area.Version 4 also incorporates enhancements to its dataset to provide a more comprehensive representation of real braces. A/B testing revealed that Version 4 occasionally included additional features on the braces, such as hooks for rubber bands, which were absent in Version 3.Version 4 also includes a greater number of examples featuring braces with alternating band colors. A/B testing demonstrated that Version 4 effectively handled prompts specifying alternating band colors (e.g., with bands that alternate between blue and green ), outperforming Version 3..