Treatment. The first step to treating tooth grinding is speaking with a dentist or an oral health professional. The doctor can inspect the teeth and find the best treatment. They can inspect if any tooth damage has been done and repair the teeth. A dentist may also recommend wearing a mouthguard known as bite splint for the night. This will prevent the teeth from grinding towards each other. A more thorough treatment of the issue includes steps to managing stress, the implementation of relaxation techniques, cognitive behavioral therapy, meditation for relaxing the body and daily exercise.