1. A method, comprising: receiving an intraoral image of a first intraoral site; determining an identity of the first intraoral site; algorithmically performing the following by a processing device: locking the intraoral image; and selecting, based at least in part on the identity of the first intraoral site, a portion of the intraoral image depicting a portion of the first intraoral site; and generating a model comprising the first intraoral site based at least in part on the locked intraoral image, wherein the portion of the locked intraoral image is used for a first region of the model, and wherein data from one or more additional intraoral images that also depict the portion of the first intraoral site is not used for the first region of the model.