Will My Tooth Collapse After Removing a Cracked Portion? - Dentistry

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Will it collapse?


During middle school, I had a cavity that resulted in most of my molar being reduced to just a few remnants of the tooth.
I didn't seek any treatment and left it that way until now.
Recently, the remaining part of the tooth cracked and started to hurt.
The dentist said that if I removed the cracked portion, the tooth would gradually stop hurting, and that turned out to be true.
However, since there were still remnants of the tooth, the adjacent teeth did not collapse or deform.
But after removing the cracked part, even though there is still a little bit of the tooth left, and it hasn't collapsed in the past, I am concerned about the future.
Since the cracked portion was removed, the remaining tooth on that side has no support.
Will this unsupported tooth collapse or deform? Thank you for your response, doctor.

oo, 40~49 year old female. Ask Date: 2009/04/21

Dr. Huang Zhicheng reply Dentistry


Hello: Molars that have undergone nerve necrosis due to cavities are very prone to fracturing.
After removing the fractured portion, the remaining tooth structure will determine the next steps.
If the dentist finds that the root is intact upon examining the X-ray, root canal treatment can be performed, followed by the placement of a post and a crown for restoration.
If the fracture occurs in the center of the tooth, it may sometimes be possible to leave a root, but it will need to be connected to adjacent teeth to form a bridge for support.
Wishing you peace and health.
Sincerely, Dr.
Huang Chih-Cheng, Director of Dentistry, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2009/04/21

More Info


When dealing with a cracked tooth, especially one that has already suffered from decay and has minimal structure remaining, it is crucial to understand the implications of any treatment decisions. In your case, it seems that you have a remaining portion of a tooth that has been compromised due to decay and cracking. The concern about whether the remaining tooth will collapse or deform after the removal of the cracked portion is valid and requires careful consideration.

Firstly, it is important to recognize that teeth rely on their structure and the support of surrounding teeth to maintain their position and integrity. When a portion of a tooth is removed, particularly if it is a significant part of the tooth, the remaining structure may be at risk of further deterioration. This is especially true if the tooth has already been weakened by decay. The absence of a solid foundation or support can lead to changes in the alignment of the remaining tooth, potentially causing it to shift or collapse over time.

In your situation, since the dentist has indicated that the removal of the cracked portion should alleviate pain, it is essential to follow up with appropriate restorative treatments. Leaving a tooth with minimal structure and no support can lead to complications, including further decay, infection, or even the loss of the tooth altogether. The remaining tooth may also experience increased stress and pressure during chewing, which can exacerbate any existing issues.

To prevent the remaining tooth from collapsing or deforming, consider the following options:
1. Restorative Treatment: After the cracked portion is removed, your dentist may recommend restorative options such as a dental crown. A crown can provide the necessary support and protection for the remaining tooth structure, helping to maintain its position and function.

2. Dental Bridge or Implant: If the remaining tooth is too compromised, your dentist might suggest extracting it entirely and replacing it with a dental implant or bridge. This can help restore function and aesthetics while preventing adjacent teeth from shifting.

3. Regular Monitoring: It is crucial to have regular dental check-ups to monitor the condition of the remaining tooth and surrounding structures. Your dentist can assess any changes and recommend timely interventions.

4. Oral Hygiene: Maintaining excellent oral hygiene is vital to prevent further decay and complications. This includes regular brushing, flossing, and possibly using an antibacterial mouthwash.

5. Dietary Considerations: Avoiding hard or sticky foods that may place additional stress on the remaining tooth can also be beneficial.

In summary, while the immediate removal of the cracked portion may relieve pain, it is essential to address the long-term stability of the remaining tooth. Without proper support and restoration, there is a risk of collapse or deformation. Consulting with your dentist about the best course of action is crucial to ensure the longevity and health of your remaining teeth. They can provide tailored advice based on your specific dental condition and needs.

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