Partial chipped or missing teeth require dental veneers, a term used to describe restorative dentistry. The main purpose of dental veneers (oral prosthesis) is to restore the basic functions of the mouth, such as chewing food, pronunciation, etc. Missing teeth not only affect the chewing function, but also affect the facial aesthetics and craniofacial development, and can seriously cause periodontal tissue disease and TMJ disease in the remaining teeth. In addition, if the teeth are not set in time, it will also lead to loosening of the remaining teeth due to occlusal trauma, therefore, timely restoration of missing teeth is very necessary.