1. Front teeth bite back (back biting will cause tooth wear)
(Left-before correction, the upper left incisor was inverted and bitten back; Right-after correction. Provided by Dr. Xu Wenting, Pinyu dentist)
When the upper and lower incisors bite normally, the upper incisors will bite on the outside of the lower incisors, and the reverse bite means that the upper incisors bite on the inside. This situation often leads to improper tooth wear, thinning of dentin damage, and sometimes periodontal damage, such as abnormal tooth jitter and atrophy of tooth flesh.
2. Wrong back teeth+crooked chin (bad biting will make the chin crooked)
(Left-before correction; Right-After correction, the chin returned to normal. Provided by Dr. Xu Wenting, Pinyu dentist)
The causes of malocclusion of posterior teeth can be divided into "dental" or "bone". If it is pure dentistry, the angle of teeth is not good, which leads to occlusal interference. You can adjust the angle of teeth, such as grinding a single tooth for occlusal adjustment, or using corrective instruments to improve multiple teeth at a time, so that the mandible will not shift due to occlusal interference, resulting in chin deviation.
3. Ectopic growth of permanent teeth and impacted teeth (impacted teeth can be found early through regular dental examination)
(left-the impacted tooth has not yet grown out; Right-Impacted teeth can be found by X-ray. Provided by Dr. Xu Wenting, Pinyu dentist)
When a child's permanent teeth grow in an abnormal position (ectopic growth) or even fail to grow (impacted) during tooth replacement, it is necessary to pull back the embedded teeth with the help of correction or even surgery (tooth exposure). Therefore, it is necessary to check the dentist regularly at least once every six months, and sometimes X-rays are needed for early detection.
4. Deep bite of front teeth+small chin (let the stuck small chin grow out)
When occluding normally, the upper incisors will cover the lower incisors by about 2 ~ 3 mm If occluding, only half of the lower incisors can be seen or even not. This kind of situation in which the upper and lower incisors vertically cover too much is called deep occlusion.
In childhood and adolescence, if you have a deep bite, a small chin and a backward chin, it is best to correct the deep bite in advance, so that the stuck chin can grow more organically to improve the face shape.
5. Teeth eruption (improving appearance and reducing the chance of tooth injury)
(Left-before correction; Right-after correction. Provided by Dr. Xu Wenting, Pinyu dentist)
In addition to being unsightly, research shows that the probability of hitting the front teeth is also high. The case shown in the picture is that Chen Xiaomei broke his front teeth. After root canal treatment and repeated adhesion of fragments, he improved the angle of broken teeth by corrective method, and there was no fracture between teeth and fragments.
I remind you that it is still necessary to decide whether it is suitable for early correction according to the situation of the case and the doctor's judgment!
6. The gap between maxilla and mandible is large.
For children with tooth eruption or fighting tendency, the problem of excessive growth gap between upper and lower jaws can be improved through the growth potential of children. For example, the fight face comes from maxillary hypoplasia, which can enlarge the maxilla in advance and simplify the difficulty of follow-up treatment. However, if the fighting face comes from chin protrusion, it can be corrected or operated together after puberty. (Recommended reading: What is the need for orthodontics? ? )
It is worth noting that the golden treatment period of children aged 7 ~ 10 should be grasped in maxillary arch expansion, and the older they are, the worse the effect will be.
7. The dentition is crowded (do you want to correct the tooth extraction? )
(left-the dentition is slightly crowded; Yes-the dentition is very crowded. Provided by Dr. Xu Wenting, Pinyu dentist)
Crowded dentition means insufficient space and overlapping teeth. If the degree of space shortage is mild to moderate, it can be corrected early to obtain space, and tooth extraction may not be needed in the future, but if the serious space is not enough, tooth extraction correction is likely to be needed. In addition, face shape and appearance should also be taken into account.
8. Bad oral muscle habits
Incisor occlusion caused by tongue vomiting addiction. Provided by Dr. Xu Wenting, Pinyu dentist)
Mouth breathing, sucking nipples, sucking fingers and sticking out tongue can cause front teeth to burst or bite. You can train your own oral muscles, or you can use a muscle function corrector with muscle training. When the oral muscles return to normal, the dentition also returns to order.
The doctor reminded me:
These are all signs of a child's tooth growth alarm. Early correction requires an overall assessment, including the child's face, age and growth trend, occlusion, tooth change and the child's cooperation. This task is carried out by the children's dentist who has been tracking children's oral health for a long time and is most familiar with children. It is the most direct, professional and efficient!
(The writer is Xu Wenting, a pediatric dental expert at Pinyu Dentistry in Hsinchu. )