The Twin Block appliance in orthodontics: Indications and advantages
TWIN-BLOCK is a removable orthodontic appliance designed by W. Clark in 1977. Is frequently used in the treatment of second class orthodontic anomalies with mandibular deficiency. In contemporary literature very little has been reported for the use of this functional appliance therefore, the main goal of this research was set to make a literature review to describe the indications, advantages and of these orthodontic appliances. As sources of information was used PubMed. The keywords used for searching were “twinblock, indications”, “twin block, advantages”. Twin Block device is indicated in cases such as: classII 1st dev, classII 2nd dev and class III malocclusion, frontal open bite, deep bite, cross bite, asym-metries faces, TMJ disorders. The advantages of use include: Ease of use; the twin block is a removable appliance, which allows patients to take better care of their oral hygiene. It stimulates the growth of the jaws due to its mild orthopaedic effect andit is easy to repair. Comfort; for many patients, it is more com-fortable to wear than other orthodontic devices, thanks to its special design.
The possibilities to influence on the type of growth are limited because they depend on a number of fac-tors, however, usage of the Twin Block device can achieve satisfactory effects on the growth of the bone segment of the orofacial system.