Where should the loading of a temporary crown occur in relation to the patient's mouth?

The loading of a temporary crown should occur primarily on the facial and lingual surfaces. This approach ensures that the crown fits properly and maintains adequate retention while being placed in the mouth. By focusing on the facial and lingual areas, you are addressing the surfaces that will primarily face the front and back of the mouth, which helps in achieving a better alignment with the natural teeth and promotes proper aesthetics as well.

In addition, the facial and lingual surfaces are critical in achieving a good seal and preventing food from impacting underneath the crown. This can also contribute to the comfort of the patient and help avoid any unnecessary trauma to the surrounding gum tissue.

In contrast, focusing on the occlusal and interproximal areas, the median anterior region, or trimmed posterior surfaces would not provide the necessary support and fit that is ideal for a temporary crown. These areas play a lesser role in the overall stability and functionality of the temporary crown, which is why loading primarily on the facial and lingual surfaces is the most effective approach.