Finzena Retractor

The Finsen retractor (NRK; Finsen) is one of the instruments used in dentistry to widen the patient's mouth during treatment. The name of the instrument comes from the name of its inventor, German dentist Otto Finsen. He was known for his contributions to the development of dentistry and his concept of the early stage of mouth stretching had a significant influence on the medical community.

At its core, the Finsen retractor is a mechanical system with a spring function that is used to increase the distance between the patient's upper and lower jaws. This is necessary to ensure easy access to teeth, removal of carious lesions and other operations in the oral cavity.

The retractor works by using two clamps that are placed on either side of the patient's mouth and held in place by straps. The clamps are connected to a tubular bar that is positioned horizontally at the top of the patient's head. When turned, the lever engaged on the bar causes the clamping device to move up or down, thereby widening or narrowing the patient's mouth accordingly.

Benefits of using a Finzenaranorea expander include easier access to difficult-to-reach areas in a patient's mouth, including teeth, root canals, and spaces between teeth. In addition, it reduces the pain of the procedure because it allows the doctor to carry out the treatment without stress and hard work.

However, it is important to note that regular use of retractors can lead to a number of side effects, such as facial asymmetry, malocclusion, soft tissue deformation and other health problems. Therefore, it is important that the dental surgeon uses wound retractors strictly according to indications, paying special attention to contraindications, and also follows the recommendations for the correct use of this instrument.