A wedge-shaped tooth defect is a pathological condition accompanied by the destruction of the hard tissues in the cervical (neck) area of the tooth, forming a wedge-shaped lesion. The disease most often affects incisors, premolars, and canines. Initially, the defects are small in size, but over time they increase, causing pain and discomfort near the gums.
The disease affects the hard tissues of the teeth near the gums, which eventually makes the tooth resemble a wedge in shape. The condition is usually classified as a non-carious lesion. Most often, enamel chips occur on the front teeth.
Causes
The area near the neck of the tooth is constantly exposed to increased pressure due to frequent biting forces. If the elements of the dental arch are positioned incorrectly, the chewing load during eating increases. As a result, the teeth become chipped and a wedge-shaped defect develops.
Wedge-shaped defects occur due to an uneven distribution of chewing load.
For a long time, the cause of wedge-shaped defects was believed to be external factors, such as brushing teeth with abrasive toothpastes and the chemical impact on enamel. Patients were primarily advised to replace hard toothbrushes with soft ones and eliminate foods containing enamel-damaging acids (especially citrus fruits) from their diet.
However, the real cause of tooth destruction in the cervical area, similar to tooth wear, is systematic mechanical stress. During chewing, the greatest load falls on the root zone, and the enamel in this area has the smallest thickness. Initially, microcracks appear in the enamel in this area, followed by a wedge-shaped fracture. Chewing stress itself is not the primary cause of wedge-shaped defects.
For example, tooth wear occurs in all people with age, but cervical enamel chips occur much less frequently. This indicates a fundamentally different mechanism of pathology development.
The main cause of a wedge-shaped defect is malocclusion. This is how it works:
- The patient has a bite disorder, and orthodontic treatment has not been performed.
- With a bite defect, the load on the teeth during chewing is distributed unevenly.
- Teeth that experience increased load wear down faster, and the worn surface becomes flat.
- With flat worn edges, food is not cut by the incisors when biting but torn. This requires more effort, increasing the load on the teeth.
- Due to excessive load, the enamel near the base of the tooth is damaged, forming a wedge-shaped defect.
According to statistical data, the frequency of diagnosing wedge-shaped defects increases with age.
Symptoms
It is almost impossible to recognize a wedge-shaped defect in the early stages. Only a dentist can detect it during an examination of the teeth and oral cavity.
The first manifestation of the disease is increased tooth sensitivity. The formation of wedge-shaped chips on the surface of the teeth in their cervical area is a clear sign of this pathological condition.
Symptoms that help identify the problem in time include:
- the shape of the tooth (the key feature of the defect is the wedge-shaped form);
- symmetry of the affected areas;
- increased tooth sensitivity;
- changes in the condition of enamel (loss of shine, darker color), etc.
If you notice any symptoms of a wedge-shaped defect, you should not self-medicate, as this may worsen the situation. As with the treatment of cavities, it is important to diagnose the disease in time with a qualified dentist who will select the correct individualized treatment.
Stages of Wedge-Shaped Defect Development
The wedge-shaped defect develops in several stages:
- Initial stage. Pathological changes cannot be visually diagnosed without special optical equipment. Sensitive symptoms of the destructive process are also absent.
- Superficial enamel damage. At this stage, signs of destruction become noticeable. Cracks appear in the enamel with a depth of up to 0.2 mm and a width of up to 3.5 mm, and there is slight tooth sensitivity.
- Moderately expressed defect. At this stage, the cracks acquire a wedge shape and are located at an angle of about 45°. They increase in depth to about 0.3 mm and widen further. A moderate reaction of the affected teeth to hot, cold, sweet, and sour foods is observed.
- Deep tissue damage stage. The defect becomes clearly visible. Destruction spreads deeper and may increase in length up to 5 mm. Teeth become highly sensitive. The wedge-shaped defect may extend into deeper tooth tissues and reach the nerve. In some cases, with deep tissue damage, the crown of the tooth may chip. Usually, several neighboring teeth are affected.
How to Treat a Wedge-Shaped Tooth Defect
The main principle of effective treatment of any disease is to address not only the consequences but also the causes.
First of all, a patient with a wedge-shaped defect should undergo an examination by an orthodontist, who will diagnose the condition and select the optimal method for correcting the bite (aligners or installation of a braces system).
Along with orthodontic treatment, the following treatment methods may be recommended depending on the indications:
- enamel remineralization;
- desensitizing toothpastes (for increased sensitivity);
- fillings using modern composite materials;
- placement of veneers for aesthetic restoration of worn teeth;
- placement of a dental crown.
Prevention of Wedge-Shaped Defects
For prevention, it is important to pay closer attention to your oral health:
- brush your teeth correctly;
- avoid toothpastes that may contain aggressive components harmful to enamel;
- visit the dental clinic regularly — this allows the doctor to detect a tendency to tooth wear and the development of wedge-shaped defects and eliminate the problem in time.
Professional doctors at YAREMA DENTAL can solve wedge-shaped defect problems of any complexity using advanced treatment technologies and extensive experience in dental care.
This article does not replace a medical consultation. For complete and personalized information, please consult your dentist.