No prep veneers are porcelain veneers that require no shaving to the teeth. Smaller teeth, straight teeth, teeth that are gaped, teeth that are set back, or teeth that can benefit from volume being added to the teeth could benefit from no prep veneers. Teeth that also need to be longer and fuller can be ideal for no prep veneers. Teeth that are very crooked, very big, or stick out are not as ideal for getting no prep veneers.