If there is a tooth growing on top of the tooth, it may be a stagnant milk tooth, supernumerary tooth, malformed central cusp, etc. According to the situation, we will choose the treatment methods such as temporary observation, extraction, or abrasion.
1. Retained milk teeth: the permanent teeth have already erupted before the milk teeth fall out, if the milk teeth are loose obviously, you can let the child eat some hard food to promote the root resorption of the milk teeth; if the milk teeth are not loose obviously, you need to extract the milk teeth under local anesthesia, in order to facilitate the normal eruption of the permanent teeth.
2. Multiple teeth: Multiple teeth do not affect the aesthetics and do not cause crowding, no need to deal with; if it affects the aesthetics and leads to crowding, you need to extract the teeth in time.
3. Malformed central cusp: malformed central cusp is mostly seen in mandibular premolar, mainly caused by the teeth in the process of development, there is a redundant cusp in the maxillary face, which can be improved by gradual grinding and local reinforcement.
A tooth grows on top of the tooth promptly to the hospital, clear cause after active treatment, so as not to delay the condition.