牙齿间隙大What to do
Oct 23, 2025
Source: Cainiu Health
Dr. Liu Chao
Introduction
一般情况下，牙齿间隙大可能是先天牙齿发育稀疏、替牙期恒牙萌出异常、牙周炎、多生牙、唇系带异常等Cause引起的。可根据实际情况选择一般Nursing、正畸Treatment、MedicineTreatment、SurgeryTreatment等Method改善。日常Life中，要坚持早晚刷牙、饭后漱口，定期进行牙周Examination。
Under normal circumstances, large tooth gaps may be caused by factors such as congenital sparse tooth development, abnormal eruption of permanent teeth during the mixed dentition stage, periodontal disease, supernumerary teeth, or abnormal labial frenulum. Depending on the specific situation, improvements can be achieved through general care, orthodontic treatment, medication, surgical intervention, etc. Specific analyses are as follows:
1. Congenital Sparse Tooth Development
Congenital underdevelopment of tooth buds—such as abnormally small tooth size or an excessively wide dental arch—can lead to natural gaps between teeth. If function is not affected, maintaining good oral hygiene and regular dental check-ups may suffice. If aesthetics are a concern, orthodontic correction or crown restoration can be used to reduce the gaps.
2. Abnormal Eruption of Permanent Teeth During the Mixed Dentition Stage
Disordered eruption sequence or misaligned positioning of permanent teeth during the transition from primary to permanent dentition can result in gaps between the permanent teeth. Regular monitoring of tooth eruption is recommended. After all permanent teeth have erupted, if gaps persist, orthodontic intervention can help guide the teeth into proper alignment.
3. Periodontal Disease
Dental plaque and tartar can irritate the gums, causing inflammation. Prolonged inflammation leads to gum recession, alveolar bone loss, tooth mobility, and eventual spacing. Under medical guidance, medications such as metronidazole tablets, amoxicillin capsules, or doxycycline hydrochloride tablets may be prescribed. Additionally, periodontal scaling and root planing procedures should be performed. Regular follow-up visits after treatment are essential for maintaining periodontal health.
4. Supernumerary Teeth
Extra (supernumerary) teeth developing in the mouth can displace normal teeth, leading to gaps between them. Oral X-rays are needed to locate the supernumerary teeth, which should then be surgically removed. After extraction, orthodontic treatment may be required to close the remaining gaps based on the alignment of the teeth.
5. Abnormal Labial Frenulum
If the labial frenulum is attached too low or is overly thick, it can pull on the gum tissue, creating a gap between the front teeth. In mild cases, observation under a doctor’s guidance may be sufficient. If the gap remains unclosed into adulthood, a frenectomy (frenulum repositioning or reduction surgery) can be performed, followed by orthodontic treatment to close the tooth gap.
In daily life, it's important to brush teeth twice daily, rinse the mouth after meals, and undergo regular periodontal examinations. Avoid biting hard objects with your teeth to prevent tooth displacement. Children in the mixed dentition stage should receive routine oral exams to detect and address tooth eruption issues early.
