What is the reason for uneven teeth in children?

It is very common for children to have crooked teeth. In many cases, it is caused by bad living habits of children, such as incorrect use of pacifiers, or premature loss of deciduous teeth without being removed in time, resulting in new teeth growing in the gaps, which affects the alignment of the teeth.

1. The method of using the pacifier is incorrect. When feeding your baby, if the bottle is positioned too far forward and upward, or if the baby lies on his back for a long time to feed, the lower jaw will suck forward, and over time the lower jaw and lower dental arch will move forward, the upper dental arch will be compressed, and the front teeth will form an "overbite" deformity.

2. Premature loss or retention of deciduous teeth can cause uneven teeth growth. If caries in deciduous teeth are not treated in time, or if they fall out due to trauma, gaps will appear. At this time, the permanent teeth have not yet erupted, and the teeth on both sides will shift into the gap, making the gap smaller. As a result, the permanent teeth that erupt later will not have enough space and will be crooked and move in and out.

3. Enlarged tonsils or nasal disease make it difficult to breathe through the nose, causing you to breathe through your mouth and sleep with your mouth open. As air flows through the oral cavity, the upper palate is subjected to upward pressure and cannot develop downward normally, causing the upper palate to bulge upward. The left and right sides of the upper dental arch also become narrower, and the front part of the upper dental arch protrudes forward. The erupted front teeth are not only tilted forward, but are often arranged in disorder, forming a facial shape with open lips and exposed teeth.

4. The impact of bad habits on teeth is as follows:

1. Sticking out or biting the tongue: When the front teeth are about to erupt, there will be mild discomfort or itching on the gums. Some children like to stick out their tongues, lick their gums or bite their tongues. Over time, the habit of sticking out or biting the tongue is formed, which causes the erupting teeth to be blocked by the tongue, and the upper and lower incisors cannot contact each other, resulting in a deformed incisor opening.

2. Licking teeth with the tongue: During the loosening period of deciduous teeth, some children like to lick them with the tip of their tongue. After forming a habit, they lick the newly erupted permanent teeth. The licked teeth are pushed outwards, and over time, the crowns of the teeth tilt forward and open in a fan shape. The upper and lower lips are not easy to close, resulting in an "open lips and exposed teeth" deformity.