Use of optical magnification systems for quality assurance. The idea to use the microscope in dentistry comes from the field of endotontics. In the U.S., for example, specialists in endotontics always work with the support of the microscope. Magnifying loupe & microscope represent modern and highly specialised techniques and methods of treatment in dentistry which are particularly promising. They also enable us to carry out minimal-invasive periodontal surgery. Additionally, they facilitate the control of the positioning of crowns.