Thurzo Andrej, Urbanová Wanda, Novák Bohuslav, Waczulíková Iveta, Varga Ivan
Department of Stomatology and Maxillofacial Surgery, Faculty of Medicine, Comenius University in Bratislava, 81250 Bratislava, Slovakia.
Department of Orthodontics and Cleft Anomalies, Dental Clinic 3rd Medical Faculty Charles University, Faculty Hospital Kralovske Vinohrady, 10034 Prague, Czech Republic.
Materials (Basel). 2022 Feb 25;15(5):1740. doi: 10.3390/ma15051740.
This paper introduces a novel method of 3D designing and 3D printing of a hybrid orthodontic tooth-borne personalized distalizer for treatment of unilateral Class II malocclusion. Research objectives were to clinically utilize 3D printed distalizers, appraise feasibility of this technique and compare two different biocompatible photopolymers (white and transparent). Frequency of distalizers' debonding and patients' aesthetical perception was evaluated on the set of 12 complete orthodontic treatments. The mean duration of treatment period with a bonded distalizer was 6.4 months. All cases were adults with unilateral Class II malocclusion managed with a hybrid approach as a part of Invisalign comprehensive treatment. Results showed that such perspective practice is feasible for 3D design and in-office 3D printing of a personalized distalizer. Results also showed no clinically significant differences between both studied biopolymers. The paper discusses an evaluation of such personalized distalizer functionality with regard to the current state of the art and compares to conventional prefabricated alternatives like a Carriere Distalizer™ appliance. Research showed a preference of patients towards transparent biocompatible photopolymer instead of the white A2 shade. The paper concludes that additive manufacturing from dental resins is a viable method in personalization and in-office 3D printing of orthodontic auxiliaries, particularly distalizers. New materials for orthodontic 3D printing endow enhanced individualization, thus more efficient treatment.
本文介绍了一种用于治疗单侧安氏II类错牙合畸形的混合式正畸牙支持式个性化远中移动矫治器的三维设计和三维打印新方法。研究目标是临床应用三维打印的远中移动矫治器，评估该技术的可行性，并比较两种不同的生物相容性光聚合物（白色和透明）。在12例完整的正畸治疗中，评估了远中移动矫治器的脱粘频率和患者的美学感知。粘结式远中移动矫治器的平均治疗周期为6.4个月。所有病例均为单侧安氏II类错牙合畸形的成年人，采用混合方法作为隐适美综合治疗的一部分进行治疗。结果表明，这种前瞻性实践对于个性化远中移动矫治器的三维设计和办公室内三维打印是可行的。结果还表明，两种研究的生物聚合物之间在临床上没有显著差异。本文讨论了根据当前技术水平对这种个性化远中移动矫治器功能的评估，并与传统的预制替代品如Carriere Distalizer™矫治器进行了比较。研究表明，患者更喜欢透明生物相容性光聚合物而不是白色A2色。本文得出结论，牙科树脂的增材制造是正畸辅助器具（特别是远中移动矫治器）个性化和办公室内三维打印的可行方法。正畸三维打印的新材料赋予了更强的个性化，从而实现更有效的治疗。
