The Basic Treatment Procedures of PASS Technique

Abstract

PASS technique is based on physiologic anchorage control theory introduced in Part I. It combines the classical treatment philosophy from Angle and Tweed and the modern self-ligating appliance’s light force low friction correction with minimum wire bending. All the knowledge of fixed appliance orthodontists got from their training can be used. It is not a brand new technology. Technically, it is a modified straight wire based on physiologic characteristics of individual patient and classical anchorage control strategy. Theoretically, it aims at reduction of maxillary dentoalveolar compensation and shares the similar goal of Tweed when keeping the upper curve of Spee is concerned. Some wire bending is still needed considering the different compensation degrees for individuals. For very severe cases, headgear and TAD or even orthognathic surgery are still advised.