Lower Back Pain caused by bacteria??

Interesting info on the possibility of bacteria from your mouth causing inflammation in your lower back leading to lower back pain. I have heard of this happening in synovial joints especially the knees where bacteria is attracted to areas of inflammation such as osteoarthritic joints. It is a bit controversial at this stage from some reading that I have done on this topic. As with all studies and research you have to take an unbiased and open approach that it may not be correct and just be the current thinking. 
Check it out and decide for yourself.
http://www.painresearchforum.org/news/28081-antibiotics-may-relieve-some-chronic-low-back-pain-study-suggests