Kravitz Neal D, Grauer Dan, Schumacher Pascal, Jo Yong-Min
Private practice, South Riding, Va.
USC Advanced Orthodontics, Santa Monica, Calif; Private practice, Santa Monica, Calif.
Am J Orthod Dentofacial Orthop. 2017 Apr;151(4):812-815. doi: 10.1016/j.ajodo.2016.11.021.
Approximately 1/2 of maxillary and 1/5 of mandibular multi-stranded lingual retainers fail during retention in some form, either bond failure or wire breakage. Memotain is a new CAD/CAM fabricated lingual retainer wire made of custom-cut nickel-titanium, as an alternative to multi-stranded lingual retainers. It offers numerous perceived advantages to the traditional multi-stranded stainless steel wire, including precision fit, avoidance of interferences, corrosion resistance and even the potential for minor tooth movement as an active lingual retainer.
在上颌多股舌侧保持器中,约有二分之一,在下颌多股舌侧保持器中约有五分之一,在保持期间会以某种形式失效,要么是粘结失败,要么是钢丝断裂。Memotain是一种新的计算机辅助设计/计算机辅助制造(CAD/CAM)制作的舌侧保持器钢丝,由定制切割的镍钛合金制成,可作为多股舌侧保持器的替代品。与传统的多股不锈钢丝相比,它具有许多明显的优点,包括精确贴合、避免干扰、耐腐蚀,甚至作为一种主动舌侧保持器还具有使牙齿轻微移动的潜力。