Various causes of defects in the color, shape, and alignment of the anterior teeth that lead to poor overall aesthetic results can be considered for their correction using restorative methods. The most basic and important principle of restorative dentistry is the principle of conservatism, which means that the damage to the healthy dentition must be minimized. According to this basic starting point, the clinician must choose the most conservative method of treatment for the patient and not take the price as the starting point, but of course, when choosing the specific type of restoration, the patient’s oral condition, aesthetic requirements and the patient’s affordability should also be taken into consideration. At present, the mainstream aesthetic restoration of anterior teeth is divided into direct and indirect methods, and the method used in the restoration department is mainly indirect, all-ceramic restoration is the current common method. For cases of tooth loss, the indirect method mainly includes porcelain veneers and full crowns; for tooth loss resulting in tooth loss, the main methods are implant and fixed bridge restoration. Porcelain veneers are currently the most conservative restorative restorative method in the oral cavity, its outstanding advantage is that the tooth preparation is very conservative, only a small amount of tooth surface preparation, research shows that the porcelain veneer tooth grinding only 15-30% of the total volume of the tooth, there are even no grinding of porcelain veneers. Secondly, porcelain veneers can obtain very high aesthetic results, porcelain veneers also have a very good clinical prognosis, primary doctors and patients often suspect the long-term effect of porcelain veneers, which is unfounded. At present, porcelain veneers in high-level specialist dental hospital is a conventional treatment technology, in the grassroots or general hospital use is not widespread, the reason is that the porcelain veneers clinical operation on the requirements of the physician is very high, requiring the physician in the dental preparation, impression making, clinical colorimetric, restoration bonding and polishing are to have a wealth of experience, otherwise, a step out of the question, the long-term clinical effect will have a serious impact on the production of porcelain veneers The dental technician’s requirements are also very high. Porcelain veneers are suitable for front teeth with small defects, tetracycline or fluorosis caused by varying degrees of tooth discoloration, front teeth with scattered gaps, front teeth with minor alignment abnormalities, porcelain veneers can be obtained and all-porcelain crowns similar to the aesthetic effect and clinical long-term results. There are some clinical conditions that are less suitable for veneer restoration, such as overly discolored front teeth, overly misaligned front teeth, and abnormal occlusion. The materials suitable for porcelain veneers are mainly emax cast porcelain and powder coated glass ceramic, zirconia ceramic is not suitable for porcelain veneer restoration. Full crown is a long history of treatment projects, early is the main method of anterior teeth cosmetic restoration, which is characterized by good restoration aesthetic effect, the restoration of the long-term effect is also very good, however, the full crown of the tooth preparation is not as conservative as veneers, research shows that the amount of all-ceramic crown preparation to reach 45-70% of the total volume of the tooth, you can imagine the amount of full crown restoration needs to be removed. All-porcelain crowns are currently the most commonly used restorative method in all types of medical institutions, advertising often appears on the crown is a very unscientific and non-standard advertising term, any textbook and serious publications do not have a definition of the crown. All-porcelain crowns commonly used materials can be emax cast porcelain, zirconia ceramic, etc. Porcelain full crowns are suitable for dental defects with large defect areas, especially for tooth restoration after pulp inactivation, and for cases with more serious discoloration of the tooth is also suitable for all-porcelain crown restoration. Tooth loss caused by tooth loss, the early commonly used fixed bridge to repair, now with the development of implant technology, fixed bridge application is less and less, mainly because the fixed bridge need to wear a large number of abutment tooth tissue, and if the number of missing teeth, also not suitable for fixed bridge use. Therefore, the best technique for tooth loss is implant restoration. In summary, when choosing the type of restoration, the first factor that must be considered is the conservatism of the dental preparation, the most conservative method is the best method, but also take into account the actual situation of the patient’s mouth, the patient’s requirements for aesthetics and the patient’s financial ability to make an appropriate choice by integrating various factors. If you can choose a porcelain veneer restoration, you should not choose a full porcelain crown. It is worth emphasizing that any restoration has its service life, the current internationally recognized life of the restoration is about 10 years, any publicity can be a lifetime warranty or too long service life of the restoration, are false or irresponsible publicity.