1, deciduous teeth are sparse and have cracks, which is also called physiological gap. The existence of these gaps is beneficial to the arrangement of larger permanent teeth after eruption. This situation is more common in children's tooth changing period, generally between 6 and 9 years old. It is a temporary malocclusion, which can be restored to normal after tooth replacement is completed and a new occlusal relationship is established.

2. When changing teeth, there is a gap between the two upper incisors, which is a temporary phenomenon in the process of changing teeth. With constant lateral incisors,

When the fangs erupt, the gap gradually decreases to completely disappear naturally, but when the gap between the upper incisors is large, you should ask a doctor to check whether there are more teeth.

3. The permanent teeth are sparse and cracked. One is that permanent teeth are small in shape, such as fangs or teeth that are too small. The other is that permanent teeth have congenital missing teeth. You can go to the hospital and ask a doctor to close the gap through orthodontics or restoration.

Treatment measures

1. Make corrections according to the reasons, such as centralized clearance to repair the clearance and closing the backlash.

2. If the tongue body is too large, correct the closed gap after tongue body plastic surgery. In order to correct abnormal swallowing, people with abnormal swallowing and tongue function need to guide their tongues to normal positions in addition to training.

3. Those who need surgical treatment can be given routine anti-infective drugs before and after the operation.

prevent

The child is about 2.5-6 years old, and his mouth is generally deciduous teeth. During this period, if the number, shape and size of the child's teeth are normal, the jaw bone develops normally, and the dentition appears scattered in the gap, which seems sparse, but this is generally normal. This is beneficial to the normal eruption of permanent teeth and generally does not need correction in clinic. If the tooth posture is small, the jaw shape is normal; Congenital absence of teeth in the oral cavity, normal jaw shape; Normal tooth shape, oversized chin, etc. It often leads to sparse dentition, which is a sign of disease and needs to be corrected.

From 6 years old to 12 years old, oral deciduous teeth and permanent teeth coexist. During this period, dentition was sparse and unusual. Clinically, premature eruption of deciduous teeth or delayed eruption of permanent teeth and interdental spaces caused by labial frenum's abnormal attachment can often get good correction results as long as the etiology is targeted and the symptoms are corrected.

After all the deciduous teeth are replaced and the permanent teeth erupt, the dentition is sparse, which is caused by the four types mentioned in the overview. As long as it is corrected as soon as possible, the curative effect will be better. If it is corrected after 12- 16 years old, the course of treatment is often long and the curative effect is uncertain. Orthognathic surgery can be performed at this stage.

Sparse dentition is easy to embed into food, damage periodontal tissue, cause gingivitis, periodontitis and dental caries. In severe cases, it can affect the patient's appearance and cause psychological and mental disorders. The disease should be corrected by different methods as soon as possible according to the causes of sparse dentition.

Curing standard

1. cure: the teeth are arranged neatly, the overbite coverage is normal, the appearance is improved, and the function meets the physiological requirements. Soft tissue factors have been removed.

2. Improvement: the gap is eliminated or partially eliminated, but the denture restoration does not fully meet the aesthetic and functional requirements.

3. Unresolved: symptoms and signs have not improved, soft tissue factors have not been relieved, and aesthetics and function have not improved.