Grinding teeth is not necessarily caused by ascaris, but by instinctive tension and stiff spine, especially cervical vertebrae. As long as you give your baby chiropractic therapy or infantile massage, or craniosacral therapy, it is also very good, which is helpful for mental relaxation, blood circulation, digestion and absorption, growth and development! Maybe you can search videos or take training courses. If you are not sure, go to Chinese medicine for treatment.