Can forehead dents be treated with ultrasound and filler?

This is my expertise and a huge portion of my practice. Asymmetry is normal and expected. See an expert who does facial shaping with surgical and non surgical methods to get a comprehensive option. Best, Dr. Emer.

Hi there, Filler in the forehead is a high risk area, however there are injectors who do treat this area. The risk of blindness would be immediate due to vascular occlusion. Any injector, despite how experienced can still cause an occlusion however experience and tools such as an accuvein or ultrasound can decrease the risk. If you are willing to take the risk I'm sure you can find an experienced injector willing to treat this area. I can think of multiple ones but they are not in your area :/

Forehead filler can be done safely and effectively in patients who either want rejuvenation or camouflage defects. However, there are definitely zones that are more dangerous both in terms of vascular occlusion and for potential blindness. Therefore, to have an in person consultation is the key to evaluate the risk prior to treatment.
Ultrasound, as it is not a commonly used tool with filler injection, it is hard to draw any specific conclusions at this time. Ultrasound in injectors that are used to using it may be helpful, but an injector does not necessarily need the ultrasound to feel confident in his/her injection.
Filler can migrate overtime but migration into a vessel has not been reported. Usually, to have filler particles enter a vessel, it requires high pressure. That's why vascular occlusion events usually happens during or at around the time of injection.