
Can a decayed tooth be extracted?
I am 21 years old and have a cavity in my mouth. I would like to know whether a cavity can be treated by tooth extraction.

In general, tooth decay refers to dental caries, which can be extracted under specific circumstances, although this is not the preferred treatment option. The treatment for dental caries depends on its severity and specific condition, with tooth extraction typically being the last resort.
Extraction is an option when tooth decay has caused extensive damage to the tooth, leaving only a residual root or crown that cannot be restored through procedures like filling. If decay leads to pulp infection, causing pulpitis or apical periodontitis that cannot be cured through root canal treatment and other methods, extraction may be the best treatment option. When decay causes serious destruction of the supporting tissues around the tooth, resulting in loosening and making the tooth irreparable, extraction becomes necessary. If a decayed tooth is malpositioned, affecting normal oral function and aesthetics, and cannot be corrected through orthodontic treatment, extraction may be considered.
If the cavity is small and has not affected the tooth root and nerve, generally extraction is unnecessary. The decayed tissue can be removed through cutting and drilling, and then the cavity can be filled with artificial materials to restore the tooth's shape. If the cavity is large but has not caused pulpitis, root canal treatment can be performed to remove the dead pulp tissue and preserve the tooth.
The decision to extract a decayed tooth should comprehensively consider the severity, location of the decay, and its impact on overall oral health. In most cases, dentists will make every effort to preserve natural teeth, as no prosthetic restoration can fully replace the function and aesthetics of natural teeth. Therefore, regular dental checkups and timely treatment of mild to moderate tooth decay are key to preventing decay from progressing to the point of requiring extraction.