The normal anatomical arrangement of the teeth is that they are independent and in proper contact with each other, and the presence of gaps is a sign of abnormality. Scientifically, we do not agree with the superstitious statement of “leakage”, but if there are obvious gaps or other traces between the teeth when speaking, at least it affects the image and even reflects the existence of dental disease, which needs to be treated in time. Simple gap: It is formed gradually during the development of the teeth and the root cause is that the amount of teeth is smaller than the amount of jawbone, mainly caused by genetics, tooth extraction and other factors. Due to the appearance of black hollow gaps between white teeth, it makes people have the feeling of unstable, uncoordinated and incomplete, and even affects communication with others, etc. Some people do not think that small gaps do not have those negative effects. In fact, a comparison of before and after treatment photos can show a noticeable difference and the result is a perfect refreshing feeling after treatment. Another even greater benefit is that the proper contact between the teeth acts as a support for each other, making the entire dentition more stable. Pathological tooth gap: The main problems of anterior tooth caries after unqualified treatment: 1. The dental disease is not effectively treated: In the case that the dental disease is not effectively treated, the infected material in the tooth lesion area is not removed, the filling is irresponsibly carried out, and the original pathology continues to develop, causing more damage to the tooth. This can be judged from the gray-black shade of the tooth, and if examined with a dental probe, it can easily enter the cavity from the edge. 2. Unqualified filling: Individual doctors just fill the filling resin material between two teeth like dough without shaping the two teeth separately, without any healthy aesthetics, and the material hardens and stimulates the gums, causing gum congestion and inflammation. Despite the substandard filling, the patient often thought the tooth was cured at the time and instead did not pay attention to the condition of the tooth, allowing the lesion to continue to develop without realizing it. The teeth have their own anatomical form, and there is contact between the teeth but not as one, and there is a certain physiological movement. The doctor needs to shape the filling to restore the normal shape of the teeth in order to maintain a beautiful image and dental function. For the gray and black spots between teeth that are fixed in position and exist for a long time, most people do not realize that they have carious dental disease (worm teeth) and think that brushing can eliminate such gray and black spots or just common tartar. In fact, brushing cannot eliminate it, and the gray-black spot between a considerable part of front teeth is one of the clinical manifestations of worm teeth. The color gradually changes from light to dark; the teeth become sensitive to hot and cold and even painful from no discomfort at the beginning. This is because the carious lesion develops from the initial surface of the tooth to the deeper part, destroying the enamel and dentin little by little, and advancing to the pulp cavity which holds the nerve of the tooth, until the symptoms such as infection and pain appear. For (black spot) tooth gap pay attention to the following points: adverse effects: damage to their own health, personal image, personal hygiene quality, interpersonal communication, etc. Reasons for consultation: affect the appearance image, oral odor, others remind, oral hygiene awareness. Treatment principles: prevention-oriented, early treatment. Try to maintain the vitality of the pulp, which is the basis of normal tooth metabolism, once the pulp is lost, the tooth becomes brittle and easy to fracture. Treatment effect: early detection, the earlier the treatment effect, the better, the method is also relatively simple, and the damage is minimal! Treatment problem: Whether it is thoroughly treated is fundamental and can be evaluated comprehensively by the effect of the coordinated beautiful color that it has, the shape of the tooth itself, whether it is coordinated with the neighboring teeth, and whether it can exercise the physiological function of the tooth.