What is deep coverage of anterior teeth?

What is deep coverage of anterior teeth? Deep coverage of anterior teeth is a relatively common dental and maxillofacial deformity. The reason for the deep coverage of anterior teeth is that the sagittal relationship between the upper and lower jaws (dental arch) is not adjusted, the upper jaw (dental arch) is too large or the position is anterior; the lower jaw (dental arch) is too large. bow) is too small or positioned backwards. The unbalanced relationship between the upper and lower jaws (dental arches) is influenced by both genetics and environment. The following small series will give you a detailed introduction to what is deep coverage of anterior teeth. The deep coverage of anterior teeth can be divided into three types: Dental type: the relationship between the upper and lower jaws and with the craniofacial bone is generally normal, that is, the relationship between the molars is neutral, and the deep coverage of the anterior teeth is mainly due to the dislocation of the upper anterior teeth labially or the lower There is no obvious skeletal abnormality due to lingual dislocation of the anterior teeth or a combination of the two mechanisms, and the prognosis of such deep coverage is good. Functional type: Mainly caused by the functional retraction or regression of the mandible caused by neuromuscular reflex, the maxillary development is generally normal, and the posterior teeth are in the distal occlusal relationship, but when the mandible is extended forward to the neutral molar relationship, the maxillary and maxillary dental arches are The relationship is basically coordinated, and the prognosis of this type of malocclusion is uncertain. Bone type: mainly due to abnormal development of the upper and lower jaws, the upper and lower jaws are in a distal malocclusion relationship, and most of the posterior teeth are in a distal relationship. According to the formation mechanism, it can be divided into 3 situations. The specific diagnosis can be combined with X-ray cephalometric analysis. .
The performance of deep coverage of anterior teeth only has the following three aspects:
(1) The maxilla develops protrudingly, and the mandible develops normally.
(2) The maxilla is normally developed, and the mandible is underdeveloped or retracted.
(3) Protrusion of the maxilla and underdevelopment or retraction of the mandible.