1. position: if the dental caries are caused by maxillofacial region, the retention cavity may exist for a long time because of the good shape after the dental caries are removed. Some patients have cracked teeth caused by cutting ends, adjacent surfaces and biting objects. After filling treatment, the filling material may fall off because of the lack of good retention form when it is stressed again.
2. Hole shape: If the hole shape of the defect is too large, it will also make it difficult to store the filler that supplements the defect, and some teeth have only a thin wall. If the teeth are forced to bite after filling, it is easy to cause the fragile tooth wall to collapse and cause the filling to fall off;
3. Materials: At present, there are many resin materials with good adhesion, which take a long time to fill;
4. Maintenance: If the patient does not maintain his teeth regularly after filling, he may suffer from caries again, and the filling materials are easy to fall off. Click to consult online oral assistant professional answers.
For more questions about filling teeth, please consult Guizhou Hande Stomatological Hospital. Guizhou Hande Stomatological Hospital has introduced the recognized excellent planting technology "German digital dental implant technology", which is comfortable and reliable and can be targeted for planting; Before implantation, the doctor will input the oral diagnosis information into the computer, and the computer can simulate the whole dental implant process in advance. The doctor will negotiate the dental implant results until they are satisfied, so as to meet the corresponding implant needs of customers.