The presence of wedge-shaped defects and their treatment is widespread and urgent problem in dentistry. Currently, various methods of treatment of wedge-shaped defects are used, however, the most common is the traditional preparation with subsequent filling of wedge-shaped defects with light-cured composites. Despite this, modern dentistry offers us an alternative treatment for both carious and non-carious lesions — laser treatment of teeth. This method has a number of advantages in comparison with the traditional one: it reduces sensitivity, there is no need for local anaesthesia, minimal invasiveness of the intervention and sterility of the prepared cavity. Due to the above-mentioned properties, the use of erbium lasers in dentistry is expanded and their use is allowed for cavities of all classes, for soft tissue removal, for disinfection inside the root canals, as an alternative to a high-speed tip, for work on bones in maxillofacial surgery. However, the evidence-based data on the effectiveness and safety of erbium laser treatment of wedge-shaped defects of teeth, followed by a remote assessment of the quality we have not found in the literature available to us. In this regard, all of the above requires additional research. Therefore, clinical and laboratory justification of erbium laser application in the treatment of wedge-shaped defects is relevant for aesthetic dentistry.