Evolution of Stright Wire: clinical efficiency and biological outcome using the individual prescription system

Aim: This study evaluated the clinical advantages of individualized orthodontic appliances compared to standard Stright Wire techniques. While traditional Roth prescriptions rely on fixed values, the individual prescription (IP) system advances the programming concept, allowing for customized tip, torque, and rotation for each tooth based on specific treatment goals. Materials and methods: Ten adult patients were treated using the IP system. Case planning was performed via Posoft software, enabling a guided selection from over 18 bracket types per tooth. Clinicians selected stainless steel or ceramic brackets with variable prescription values to manage mesial or distal rotations. Arch form (ovoid, tapered, square) and auxiliary devices were digtally customized prior to ordering, optimizing the biomechanics for each dental arch. Results: Optimal Class I occlusion was achieved in all cases. The use of pre-programmed brackets allowed for early rotation correction during the initial alignment phase, drastically reducing the need for bracket repositioning or manual finishing bends. The synergy between customized arches and tooth-specific brackets accelerated space closure and the resolution of severe crowing, significantly shortening overall treatment duration compared to standard methods. Conclusions: The IP system represents a significant step towards precision orthodontics. Reduced chair time and enhanced stability are coupled with a major biological advantage: digital pre-visualization prevents unwanted tooth movements and “round-tripping”, preserving periodontal health. Customization is no longer just an option but an essential tool for achieving excellent and stable long-term results.