Ergonomics is an autonomous science that studies the interaction of the human body with the working environment constituent factors where it is integrated. Its perspective is from the final analysis the elaboration of guidelines, with the objective of eliminating anti-anatomical postures and non-productive movements at work, preventing or extending the physical and mental fatigue limits of the worker, and preventing the onset of signs and symptoms of diseases, thus contributing to better professional performance. In dentistry, as in other fields of medicine, initially work with the surgical microscope presents as main difficulty the ergonomics issue. About 77% of the dentists that use surgical microscope pointed out that when started using microsurgical techniques, achieving good ergonomics of the triad position for dental procedures, which results from the obtainment of the dentist correct body position relative to the microscope, to the patient, and to the operative field at the same time, was the main difficulty. A work performed by a team accustomed to use the surgical microscope is quickly and safely performed, without excessive and unnecessary physical wear, promoting in the patient a sense of security in relation to the professionals and achieving excellent results.