Estimation of Orthodontic Force Parameters with Developed Computer Application for En-Masse Retraction of Six Maxillary Anterior Teeth

In the current research study, a computer application (desktop software) was developed to determine orthodontic force application points to achieve en-masse retraction of six maxillary anterior teeth. In this type of tooth movement, retraction forces are applied with retraction spring by fixing it anteriorly and posteriorly. Based on other orthodontic force, moment and distance parameters, proper location of retraction spring attachment on anterior and posterior side is needed to ensure accurate application of orthodontic appliances. In this research study, the computer application (desktop software) based on simple trigonometric calculation was developed for the ease of estimation of location of required retraction force. This computer application can be used both in labial orthodontics (LaO) and lingual orthodontics (LiO) if other force, moment, and distance parameters are known. Due to simple user interface of computer application, the task of determination of force application points will be simplified for orthodontists which is desirable.