Can Maxillary Fernulum Bleeding Reoccur Due To Pacifier Usage?

Hello Dr, My 17 month old son injured his maxillary fernulum on 13th June 2014, and was bleeding. I took him immediately to my ped. However he said bleeding will stop on it s own and sent me away. But by the end of the day, my son was bleeding profusely and we took him to emergency. The dr made a suture and the bleeding stopped. But next night, my son fell on his bed playfully before going to sleep, with a pacifier in his mouth. The suture came out and it was bleeding a lot again. We again took him to emergency and as the bleeding did not stop over 1-2 hours, the dr examined and gave him 2 new sutures. This time, the bleeding did not stop immediately. They said we should be in observation for few hours at hospital and then, if the situation does not improve, he may have to be operated. But bleeding stopped after few hours and we came home. It s a week now and he has been bleeding on and off, finally more heavily with some tissue hanging near his mouth. He is using a pacifier. Does the use of pacifier delay his chances of healing. I would really appreciate your opinion. Thanks and regards Subha