MTM is a new system of straightening teeth without the use of conventional braces. A series of clear plastic aligners are utilized to create tooth movement. Moving teeth with removable aligners is not new. Utilizing modern computer technology and CAD design techniques, we can generate a series of aligners with small changes. This new advancement is recommended for simple orthodontic corrections of mild to moderate spacing or crowding. They are virtually undetectable, easy to use, and comfortable to wear.