Our Hot PLX4032 Blueprint Performs While You Go To Bed : )
An increasing variety of new archwire materials have also become available. Nickel-titanium (NiTi) wires are now used in the majority of cases for initial leveling and aligning [1]. However, their super elastic property makes customization of arch form and size difficult. In order to maintain pre-treatment arch forms, it is more reasonable to have different types of preformed arch wires available that operator could choose to most closely match the patient��s pretreatment arch form. A study of clinicians�� choices when selecting arch wires during the initial and latter stages of orthodontic treatment report that clinicians use available preformed NiTi archwire in the early stage and stainless steel in the latter stage of treatment for preservation of the pre-treatment arch form. In particular, maintaining of the initial intercanine and PLX4032 molecular weight intermolar widths were considered important in stability [2�C4]. Because the treatment philosophy in our clinic is to maintain pre-treatment arch forms throughout treatment, we match non-customized preformed NiTi archwires to individual patient archforms during treatment planning. This selection is usually made by visual comparison of archwires placed against the facial surfaces of both mandibular and maxillary dental casts. It has always been of interest to be more quantitative in this selection process. With this in mind, we designed a study to compare average dental arch forms of Class I and Class II div 1 malocclusions to those of the preformed NiTi archwires currently used which are the two most common malocclusion seen in our clinic. Materials and Methods Subject Selection Groups of Angle Class I and Class II div 1 patients were selected from patient records at the Mahidol University Dental School Graduate Orthodontic Clinic. Selection criteria for the Class I study group were: (1) meets all of Angle��s classification I criteria, (2) no cusp attrition, fractured teeth, or restorations extending to contact areas, cusp tips or incisal edges, (3) complete permanent dentition with normal size and shape including fully erupted 2nd molars, (4) arch length discrepancy less than 3 mm, (5) no history of prior orthodontic treatment.