Painful Tooth After Orthodontic Wire Change: Possible Cavity? - Dentistry

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I had my braces adjusted, but one of my teeth is hurting?


I would like to ask about a tooth that has been painful when pressed and when biting after my first orthodontic wire change on April 9th.
It doesn't hurt normally, but there is a small black spot on its surface.
Could this possibly be a cavity? Thank you.

Tammy, 20~29 year old female. Ask Date: 2016/04/16

Dr. Huang Zhicheng reply Dentistry


Hello, based on the situation described, this is related to orthodontic treatment.
The increased force from the wire change may be causing your discomfort.
The black spots on the surface are likely due to pigmentation; however, to confirm the issue with the black spots, please visit a dental clinic for further examination.
In the meantime, please ensure to maintain proper oral hygiene.
Wishing you safety and health.
Sincerely, Dr.
Huang Chih-Cheng, Director of Dentistry, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2016/04/16

More Info


Experiencing pain in a tooth after an orthodontic wire change can be concerning, especially when accompanied by visible changes like a small black spot on the tooth's surface. While it is possible that the pain could be related to a cavity, there are several factors to consider.

Firstly, it is important to understand that orthodontic treatment often involves applying pressure to the teeth to move them into the desired position. This pressure can cause discomfort or pain, particularly after a wire change. The pain you are feeling when pressing on the tooth or biting down could be a normal response to the increased force being applied to the tooth. This discomfort typically subsides as your teeth adjust to the new wire and the pressure decreases.

However, the presence of a small black spot on the tooth raises the possibility of a cavity. Cavities, or dental caries, occur when bacteria in the mouth produce acids that erode the tooth enamel, leading to decay. The black spot could indicate the beginning stages of a cavity, especially if it is accompanied by sensitivity or pain. It is crucial to have this evaluated by a dental professional, as untreated cavities can progress and lead to more severe dental issues, including tooth infections or the need for more extensive dental work.

In addition to cavities, other potential causes of tooth pain during orthodontic treatment could include:
1. Gum Irritation: The brackets and wires can irritate the gums, leading to localized pain or discomfort.

2. Tooth Sensitivity: Some individuals experience heightened sensitivity in their teeth during orthodontic treatment, which can be exacerbated by changes in pressure.

3. Root Resorption: In rare cases, the movement of teeth can lead to root resorption, where the body begins to break down the root structure of the tooth. This condition can cause pain and requires immediate attention from an orthodontist.

4. Infection: If there is an underlying issue, such as a previous dental procedure or untreated decay, an infection could develop, leading to pain and discomfort.

Given these possibilities, it is essential to consult with your orthodontist or a general dentist as soon as possible. They can perform a thorough examination, including X-rays if necessary, to determine the cause of the pain and the nature of the black spot. Early intervention is key to preventing further complications.

In summary, while the pain you are experiencing after a wire change could be a normal reaction to orthodontic adjustments, the presence of a black spot on the tooth warrants further investigation to rule out cavities or other dental issues. Maintaining good oral hygiene, including regular brushing and flossing, is crucial during orthodontic treatment to minimize the risk of cavities and ensure the best possible outcome for your dental health.

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