8 F Clinical Principles 4) Upper second molar composite buildups. 5) Bonding of the lower arch after Maxillary Trans-verse Bioadaptation. 6) Bioadaptative light elastic at night only since the beginning of the treatment. 7) Final arch definition with 0.014 x 0.025" thermo activated. 8) Maximum of 0.018" ss or 0.014 x 0.025" ss for sliding mechanics. The technological developments of the CRYSTAL 3D Aesthetic Self-Ligating Bracket System, give the dentist the ability to implement fully compatible orthodontic biomechanics consistent with the reparative responses of the body. We can now achieve all the objectives of orthodontic treatment without causing harmful side effects to teeth and supporting structures. The physiology of the body are fixed, so the mechanics used in orthodontics have to be changed to be compatible with the physiology and not be an assault on the body, This is what happens with conven-tional orthodontic mechanics, especially when extract-ing teeth in orthodontic treatment. This does not occur in the MTB philosophy, which is less invasive, and doesn't use any additional appliances or accessories, allowing simple and efficient biomechanics for any type of malocclusion regardless of patient age. We call this a self-ligating system because we know that the success of the treatment is not solely depen-dent on the use of self-ligating brackets, its interaction with the thermoactive niti wire, or components such as buttons or crimpable stops. There is no magic in a particular type of orthodontic hardware. Success comes from understanding the mechanics of the appliance and physiologic response of the orofacial structures to the MTB treatment protocol. We observe that in a period of approximately of 4 to 8 months, significant changes occur in alignment, leveling, and transverse correction based on clinical of the MTB Philosophy: Objectives of Clinical Self-Ligating Orthodontic Treatment By Alan Rodrigues acial aesthetics, dental aesthetics and the chief complaint of the patient are the patient's goals. Functional occlusion, periodontal health and healthy TMJ's are the clinical objectives of the orthodontist. These objectives form the foundations to achieve the ideal objectives of orthodontic treatment described by Dr. R. Roth. In order to achieve these ideal objectives, we have to understand the biological tissue response to dentoalve-olar movement. It is very important that the orthodon-tic mechanics applied not cause collateral damage to dentoalveolar support structures. The Maxillary Transverse Bioadaptation (MTB) treat-ment philosophy when paired with esthetic CRYSTAL 3D friction-free, self-ligating brackets has a significant advantage over conventional treatment protocols. The MTB treatment protocol involves non-extraction and uses light biocompatible forces to produce a functional esthetic occlusion. Conventional orthodontics often requires extractions and results in a narrow palate, poor esthetics, poor tongue position, and the functional problems associated with extraction orthodontics. With MTB treatment, light forces are applied in a manner that corrects malocclusions quickly with expansion and a functional mandibular shift versus the conventional approach, which uses high forces that force the teeth into a seemingly straight but often non-functional occlusion. The MTB treatment philosophy is an ideal way to treat patients with better healthier results. The 8 Clini-cal Principles of the MTB Philosophy listed here create a “significant paradigm shift” from the established paradigms in conventional orthodontics. 1) Clinical analysis of the upper second molar. 2) Initiate the treatment with a 0.014" thermoactive arch wire. 3) The importance of the crimp stop positions. 44 Summer 2015 JAOS