Before filling the teeth usually need to pay attention to three issues: 1, to choose a regular medical institutions; 2, to carry out oral cleaning work, if there are more pigment, food residues in the mouth, this may cause the doctor misdiagnosis leakage, affecting the treatment effect; 3, need to pay attention to the matter is that many people are full of fear for dental treatment. Most of the reasons may be due to the psychological shadow left by the childhood dental treatment, this is also a factor that is currently emphasized in the medical treatment of pediatric dentistry, do not let him form a psychological shadow, this psychological shadow in the adult dental care will appear a fear. This fear leads to the inability to establish good cooperation with the doctor, oral treatment often use some high-speed cutting apparatus, some small appliances, instruments, if in the treatment work can not be very good cooperation, there may be instruments accidental injury, missuction, mis-swallowing caused by more serious consequences.