Can street drugs cause lock jaw?

See below: I am assuming you are referring to true lockjaw caused by tetanus. The answer is that anything can be infected with the tetanus bacilli and if you inject something contaminated with the tetanus bacillus, then yes, you can develop lockjaw.

TMJ?: Not true lockjaw, but some street drugs cause clenching/grinding of jaw, which can cause TMJ problem.See dentist or TMJ expert to evalluate. Any dentist can be a TMJ expert with the proper training and experience. Most commonly, oral surgeons, prosthodontists, and orofacial pain specialists. Ask your MD, your dentist and your dental society for referrals.