Tea tree oil for dental health

Tea tree oil is one of my favorite things to use to keep my teeth and gums healthy. I remember my husband said he had a cavity and he had to go back to the dentist in a few weeks to have it filled. I had him put a drop of tea tree oil on his toothbrush with his toothpaste before he brushed his teeth. He did what I told him to do, and when he went to the dentist, the dentist said there was no cavity there and he could go home. The dentist assumed the xray was wrong, but I knew better! :)