En traitement orthodontique, Archwire est l'un des composants principaux du système de correction du support. Si vous êtes un orthodontiste ou un chef d'achat dentaire, Cet article analysera les fonctionnalités techniques, Scénarios d'application et suggestions d'achat d'arcs orthodontiques dans une perspective professionnelle, Vous aider à faire correspondre vos besoins cliniques plus efficacement.
1. Que sont les arches orthodontiques?
Thin, flexible metal wires that are fastened to dental brackets are called orthodontic archwires. Au fil du temps, these wires gradually shift the teeth into the proper position by applying light, continuous pressure. These wires are known as “arch wires,” and the lower arch is formed by the wires on the lower teeth, while the upper arch is formed by the wires on the upper teeth.
Ils agissent comme un moteur guidant pour les dents et sont essentiels pour contrôler le mouvement des dents. Sans, Vos dents tordues ne bougeraient jamais. Ces fils d'accès sont disponibles en différentes tailles et ont des compositions de matériaux différentes.
2. Quelle est la fonction des archhiches?
As a dynamic mechanical component of the orthodontic system, the orthodontic archwires achieves passive movement of teeth through an accurate compression mechanism. During the initial treatment stage, orthodontiologists select nickel-titanium alloy archwires with appropriate elastic modulus. Their shape memory properties can apply a continuous orthodontic force of 0.5 to 1.5N/cm² to the misaligned dentition. This mechanical stimulation triggers alveolar bone remodeling by activating the proliferation of osteoclasts on the pressure side and osteoblasts on the tension side, achieving a monthly displacement of 0.1 to 1mm for the teeth.
Les pwires remplissent trois fonctions essentielles:
| Guide vectorielle | Établir une courbure idéale de l'arc dentaire grâce à la mise en forme de fil préformé |
| Livraison de force | Traduction de contraintes du système de support en mouvement dentaire directionnel |
| 3D Control | Réglage de l'inclinaison axiale et du positionnement en rotation via l'ingénierie du couple |
The dynamic adjustment mechanism runs through the entire treatment cycle: follow-up is conducted every 4 à 6 semaines, and orthodontists maintain the optimal orthodontic force of 20 to 150g/cm by replacing the archwire. In the middle and later stages of treatment, it transitions to the stainless steel archwire stage (0.016×0.022 inches to 0.019×0.025 inches), with an elastic modulus of 210GPa. This enables the establishment of an accurate three-dimensional mechanical system, allowing for fine regulation of root tip movement and occlusion.
Profit’s three-stage theory (Profit, Champs, & Sarver, 2018) is followed by this biomechanical system: initial alignment → vertical control → torque fine-tuning, which leads to 80–90% repositioning of the dental arch and functional occlusal reconstruction. According to clinical data, the archwire system’s standardized application can maintain the root resorption rate below the safe threshold (< 2MM) and boost orthodontic treatment efficiency by 40%.
3. La science derrière les arcs orthodontiques
Today’s archwire is an engineering marvel, in contrast to orthodontics’ homogeneous approach in the early 20th century. Materials science holds the key to their success: the right alloy selection has a direct impact on treatment speed, comfort, and result.
Consider NiTi (nickel-titanium) wire. Almost no one anticipated that NiTi would have dental potential when Dr. William J. Buehler first noticed its “shape memory” qualities in the Naval Research Laboratory in the 1960s. These days, this alloy is a major solution to the issue of crowded teeth because it can “remember” the patient’s ideal dental arch shape and can withstand up to 8% strain (whereas steel can only withstand 1%).
4. Classification des arches orthodontiques
Orthodontic archwires can be classified into three major types based on the different material properties:
UN. Arcwires nickel-titanium (Niti)
B. Arc en acier inoxydable
C. Beta-Titanium Archwire
5. Critères de sélection clinique pour les arcs orthodontiques
Match elasticity to strength according to the treatment stage
For initial correction, superelastic nickel-titanium archwires should be given priority to reduce patient discomfort. In the middle and later stages, stainless steel or β -titanium bow wires are replaced to precisely control the force.
Focus on the surface treatment process
High-quality bow wires should have a smooth surface (such as electrochemical polishing) to reduce the friction of the brackets and avoid mucosal irritation.
Standardized dimensions and memory performance
Select archwires that meet the AAO (American Orthodontic Association) standards to ensure compatibility with mainstream bracket systems and high shape memory stability.
6. Clinical Usage and Maintenance Suggestions
- The archwire replacement cycle: The patient’s tooth movement speed and the level of orthodontic archwires fatigue determine how often it is adjusted, which is typically every 6 à 8 semaines.
- Advice for patients: Keep in mind to refrain from chewing hard objects, apply orthodontic wax to ease any initial discomfort caused by friction, and clean the archwire on a regular basis to avoid plaque buildup.
- Storage requirements: To prevent oxidation or deformation, unopened bow wires should be kept in a dry atmosphere.
7. Pourquoi choisir notre Vitesses orthodontiques?
En tant qu'exportateur spécialisé dans la recherche et le développement de consommables dentaires pour 15 années, Nous offrons:
Contrôle de qualité strict: Les produits sont ISO 13485 agréé, FDA / CE conforme et lot traçable.
Choix diversifiés: couvrant la gamme complète de tailles de 0,012 ″ à 0,021 × 0,025 ″, Soutenir la personnalisation multi-matériaux comme le nickel-titane, acier inoxydable, bêta-titane et ainsi de suite.
Partage de cas: Solution de fil d'arc pour améliorer l'efficacité de la clinique.
Une chaîne de cliniques dentaires à Barcelone, Espagne, réduit le cycle de traitement moyen des cas initiaux par 15% Et le temps pour les ajustements de suivi par 20% en utilisant nos arcs nitinols. La rétroaction du médecin est que «la stabilité de la mémoire de forme de l'arc-vide réduit considérablement la complexité de l'opération, ce qui convient particulièrement aux adolescents. »
Conclusion
Despite their small size, orthodontic archwires are essential components that influence the correction effect. Selecting the appropriate archwire can boost patients’ confidence in the course of treatment in addition to increasing the effectiveness of diagnosis and treatment. Please do not hesitate to contact us at any time if you would like free samples or more information about our products.
Références
- Shah, S. J., Ali, M., & Matthews, M. E. (2015). Matériaux et techniques orthodontiques. Journal of Clinical Orthodontics, 49(8), 23-34.
- Ribeiro, T. K. S. J., Silva, S. UN. S., & da silva, D. P. (2020). Mécanismes biologiques du mouvement des dents: Une revue. Journal européen d'orthodontie, 42(2), 55-64.
- Professeur, W. R., Champs, H. W., & Sarver, D. M. (2018). Orthodontie contemporaine (6thé.). Elsevier.
