Dreaming that you are bleeding means that you should be lucky, have unexpected gains, get rich, have happy events, or do things smoothly and satisfactorily, which all indicate good luck. The more blood you shed in your dreams, the more you gain.
On the whole, your dream is half lucky, but more auspicious. In other words, tooth loss in the front is bad, bleeding in the back is good, but bad luck can be turned into good luck.