Quick Answer. Pain upon opening the mouth can be a symptom of temporomandibular joint disorder, or TMD, according to WebMD. This common condition is also called TMJ, though that acronym more accurately refers to the jaw joint itself.
Green Brook Township is a township in Somerset County, New Jersey, United States. As of the 2010 United States Census, the township's population was 7,203, reflecting an increase of 1,549 (+27.4%) from the 5,654 counted in the 2000 Census, which had in turn increased by 1,194 (+26.8%) from the 4,460 counted in the 1990 Census.
Clark township in Union County has a population of under 15,000 last we checked. The township is well-served by NJ Transit and Routes such as Garden State Parkway and Routes 608, 613, 615 and 632. Middlesex Water Company has a reservoir in Clark. Milton Lake is nearby too.