Braces are often clinically referred to as crowns. Whether or not a half tooth can be crowned depends on the amount of remaining tooth tissue; if it is sufficient, it can usually be restored with a crown. If the remaining tooth tissue is too deep under the gums, it may not be possible to crown the tooth and will need to be extracted. 1. If there is enough remaining dentin tissue with sufficient dentin shoulder collar, i.e., more than 2 mm above the gingiva, then a crown restoration or a post-and-core crown restoration is generally possible, but root canal treatment may be required before crowns can be made. 2. If the remaining tooth tissue is missing too deep under the gingiva, then the tooth has no preservation value, and it cannot be crowned, but can only be extracted. Whether a half tooth can be crowned or not, it is recommended to go to the hospital in time to make the best treatment plan according to the condition of the corresponding remaining tooth.