Why Do Root-Filled Teeth Still Crack Despite Crowns? - Dentistry

More Info

---

The phenomenon of root-filled teeth cracking despite the presence of crowns is a complex issue that can arise from several factors. It is understandable to feel frustrated when you have invested in root canal treatment and crowns, only to experience further complications such as cracks in the tooth roots. Let's delve into the reasons why this might occur and what it means for your dental health.

Firstly, it is essential to understand that root canal treatment aims to remove infected or damaged pulp from the tooth, after which the tooth is sealed to prevent further infection. However, the structural integrity of the tooth can be compromised due to various reasons. One of the primary reasons is that teeth that have undergone root canal treatment are often more brittle than vital teeth. This brittleness can make them more susceptible to fractures, especially under the stress of chewing or grinding.

The type of crown placed on the tooth can also play a significant role in its longevity. While you mentioned that your crowns are made of metal with porcelain, which is generally a strong combination, the fit and design of the crown are crucial. If the crown does not fit well, it can create areas of stress on the underlying tooth structure, leading to cracks. Additionally, if the crown is too thin or improperly contoured, it may not provide adequate support to the tooth, increasing the risk of fracture.

Another factor to consider is the condition of the remaining tooth structure after the root canal treatment. If a significant portion of the tooth was lost due to decay or fracture before the crown was placed, the remaining tooth may not have enough strength to withstand normal forces, leading to cracks over time. Furthermore, if there are any underlying issues such as bruxism (teeth grinding), this can exacerbate the problem, as the excessive forces can lead to cracks in the tooth roots.

It is also worth noting that the quality of the root canal treatment itself can impact the long-term success of the tooth. If the root canal was not adequately cleaned and sealed, there could be residual infection or inflammation that weakens the tooth structure over time. However, if your dentist has assessed the root canal as being well done, this may not be the primary concern.

In terms of your question about whether the recommendation to extract the tooth is appropriate, it is often a last resort when a tooth has become non-restorable due to extensive damage or infection. If a tooth is cracked beyond repair, extraction may be necessary to prevent further complications, such as infection spreading to adjacent teeth or the jawbone.

If you are experiencing recurrent issues with multiple teeth, it may be beneficial to seek a second opinion from a dental specialist, such as an endodontist or a prosthodontist. They can provide a thorough evaluation of your dental health and recommend alternative treatment options, such as dental implants or bridges, if extraction is deemed necessary.

In conclusion, while it is unfortunate that root-filled teeth can still crack despite having crowns, it is a reality that many patients face. Factors such as the inherent brittleness of treated teeth, the quality of the crown, the condition of the remaining tooth structure, and external forces like bruxism all contribute to this issue. Seeking further evaluation and discussing your concerns with a dental professional can help you navigate your options and make informed decisions about your dental health moving forward.