exposed root
Introduction
Introduction Exposed roots, mainly refers to the phenomenon of atrophy of the gums, while the teeth become larger, the teeth become longer and the teeth are loose. The roots of the teeth are exposed, and the atrophy of the gums often makes the exposed teeth extremely sensitive to temperature changes and acidic foods, and often causes irritation. Since the gums are retracted with the absorption of the lower alveolar bone, once the gums are retracted, except for a few teeth, most of the gingiva can be retracted and restored to the original height. Take care to prevent gingival recession.
Cause
Cause
The cause of root exposure:
First, the roots of the teeth do not grow directly on the alveolar bone (the gums), and there is a thick layer of gum tissue between them. This part of the gum is called "periodontal tissue" by modern stomatology (maybe called The internal gums will be more vivid), and the periodontal tissue and alveolar bone are tightly wrapped by the surrounding gums. Therefore, the combination of teeth and alveolar bone is actually a joint relationship, belonging to the micro-motion joints in the human body (small range of motion), so even if the teeth are strong and healthy, touching with hands will have a slight movement.
Alveolar bone is basically dependent on its gingival tissue for feeding. When the gingiva is aging and shrinking, the ability to transport nutrients to the alveolar bone is decreasing, and the alveolar bone is shrinking and shortening. The stomatology is called "bone resorption phenomenon". . Atrophy of the gums leads to a decrease in the strength of the "micro-motion joint", the teeth begin to loosen, and the alveolar bone is absorbed, which makes the roots of the teeth shallower and the teeth become longer. As the bone absorption phenomenon increases, the teeth naturally become Falling off.
On the other hand, after the gums are atrophied, they can no longer wrap the roots as tightly as before. As a result, the periodontal tissues (internal gums) are also exposed, and various bacteria (especially anaerobic bacteria) and dental stones in the mouth directly invade the teeth. Weekly tissue causes periodontitis. Periodontitis will in turn aggravate the atrophy of the gums, accelerate the absorption of the alveolar bone, and form a vicious circle. The result is not only to destroy the gums, to destroy the teeth, but more seriously to threaten the health of the body, due to the current stomatological belief that the gums are atrophied. Can not be reversed, so periodontitis can not cure, so it will be listed by the World Health Organization as the third biggest threat to human health.
All in all, there is a great relationship between alveolar root exposure and alveolar bone resorption after atrophy of the gums.
Examine
an examination
Related inspection
Oral endoscopic pulp vitality measurement oral X-ray examination
Root exposure inspection
The gums are atrophied, the teeth are enlarged, the teeth become longer and the teeth are loose. Since the root of the tooth is absorbed by the alveolar bone without enamel protection, the root of the tooth becomes shallower and the tooth becomes longer. As the phenomenon of bone resorption increases, the tooth naturally falls off, and the root of the acid exposed to the acid is exposed. It is easy to have pain caused by dentin hypersensitivity.
Diagnosis
Differential diagnosis
Tooth root exposed confusing symptoms
Alveolar process: The alveolar process lesions begin to destroy the bone from the alveolar process. In severe cases, the teeth are completely buried in the soft tissue, the teeth loose, fall off, and the bleeding of the gums presents a 'floating' sign. Some bone destruction is extensive, the edges are blurred, similar to changes in malignant tumors.
Dislocation of the tooth: under the impact of a large violent attack, the tooth may be partially or completely dislocated. Due to the tear of the periodontal membrane, even the neurovascular bundle entering the pulp from the apical foramen also tears, and the tooth is loosened and tilted clinically. Elongation and pain, hinder chewing. When the teeth are completely dislocated, the teeth are separated from the alveolar socket, or only the soft tissue is connected, often accompanied by gingival tears and alveolar bone fractures.
Tooth displacement: When periodontitis develops to a certain extent, the teeth tend to tilt toward the more severely damaged side due to the destruction of the alveolar bone of the fixed teeth. If the condition is mild, the alveolar damage is not much, the teeth are not loose, and the teeth can be restored by orthodontics after controlling the periodontitis. If the condition is severe, the alveolar bone damage absorbs more than 1/2 of the length of the root, and if the tooth is loose, the tooth cannot be reset.
Abnormal teeth: The development of human teeth is a complex and lengthy process. In this long process, various unfavorable factors inside and outside the body can cause different types of developmental abnormalities in different stages of tooth development, such as abnormal teeth eruption, abnormal number, abnormal morphology and abnormal tooth structure.
Gingival atrophy: the teeth become larger, the teeth become longer and the teeth are loose. Since the root of the tooth is not protected by enamel, the root of the tooth exposed to acid corrosion can easily cause pain caused by dentin hypersensitivity.
