Some veterinarians who specialize in dental anguish will perform root canals and other intensified dental travail.
There's no substitute for brushing your canine's teeth, but if you can't do that, make certain he gets some kind of crunchy canine biscuit on a regular basis. http://Damoa2019.maru.net/bbs/board.php?bo_table=free&wr_id=150559