Causes of uneven teeth

There are many reasons for uneven teeth, which is closely related to not paying attention to dental care in daily life. In addition, if malnutrition occurs during the fetal period, it may also affect the teeth and jaws, and finally lead to uneven teeth. In addition, uneven teeth also have certain genetic factors. If there is retained deciduous teeth or congenital missing teeth, such symptoms will appear.

Causes of uneven teeth

Congenital causes

The growth and development of teeth is affected by internal and external factors of the human body. When the fetus is stimulated in the mother's body, or the mother is ill or malnourished during pregnancy, it will affect the normal development of the fetus's teeth and jaws, causing the teeth to be misaligned after they erupt. If parents have crooked teeth, this condition will be passed on to their children.

Acquired causes

(1) Early loss of deciduous teeth: insufficient space will occur, resulting in crowding and misalignment. The eruption guiding function is lost, and the permanent teeth become misplaced or fail to erupt.

(2) Bad habits: Most of them are finger sucking habits, tongue sticking out habits, lip biting habits, object biting habits, jaw protrusion habits, bad swallowing habits, unilateral chewing habits, etc., which can cause various malocclusions.

(3) Supernumerary teeth: Supernumerary teeth can cause morphological and kinetic disorders in the tooth and jaw system. Supernumerary teeth between central incisors can lead to the formation of central incisor gaps, etc.

(4) Congenital missing teeth: mostly due to developmental and embryonic reasons. The missing third molars are mostly due to germline degeneration.

(5) Retained deciduous teeth: When individual teeth do not fall out within the prescribed time limit, they are called retained deciduous teeth. This may result in the eruption of the successor permanent teeth being blocked and becoming buried, or the permanent teeth erupting out of the same position.

(6) Insufficient wear of deciduous canines: Because children eat soft food, some deciduous canines are not worn as much as other teeth, and thus are higher than the tooth surface of the dental arch, resulting in premature contact, causing forward or lateral movement, and forming an underbite.

In addition, there are many systemic factors and local disease factors: such as infectious diseases, malnutrition, endocrine factors, vitamin deficiency, cleft lip and palate, benign hypertrophy of the mandibular condyle, facial hypertrophy, etc.