The useage of splint would be a better choice , as it decreases the amount of force being taken on by the TMJ , as the amount force or the loading of the joint is decreased , the problem being disc displacement with reduction will get subsided due to unloading of the left joint , and Due to the unloading there won’t be even more degeneration of the of the centre of joint on the right side.
Next Steps
Go for the splints
Health Tips
Make sure you use the splint as prescribed the prognosis would be really great