Implants used in orthodontics are
Anchorage is the most critical aspect of orthodontics. The anchorage savers do offer extra assistance to anchorage, most recent armamentarium in orthodontics was the introduction of mini screw implants (MSI) and skeletal anchorage system (SAS). Their small size has led to them being called- "mini-implants, micro-implants, mini-screws or mini-pins".
Textbook of Orthodontics, Gurkeerat Singh 2nd ed page 299
Endo-osseous implants
Trans-osseous implants
Micro implants
Bioresorbable implants