The teeth inside the all-porcelain braces may stink, is caused by the occurrence of caries inside the braces, need timely treatment. 1. If you do all-porcelain braces, do not do a good job of local cleaning, their own dental tissue caries, may lead to bacterial residue, so there will be a bad smell, but also may produce more obvious pain symptoms. But the general odor is not from the dentures inside the all-porcelain teeth, but from their own dental tissues. 2. All-porcelain braces inside the denture is generally made of zirconium dioxide or silicon dioxide, generally will not have odor changes, and will not rot. If there are obvious odor symptoms, it is recommended to actively seek medical examination to determine whether the symptoms produced by their own dental tissues, need to actively treat the symptoms.