摘要
Abstract
This study systematically reviews the latest research advances in clear aligners across materials science,clinical treatment outcomes,and impacts on oral health.In materials science,research focuses on membrane biocompati-bility,development of bio/smart composite aligners,and direct printing technology for clear aligners.Although main-stream materials are generally safe,some still harbor cytotoxic risks.Smart composite materials offer novel strategies for monitoring and preventing enamel demineralization and bacterial biofilm formation by integrating sensors or incorporat-ing antimicrobial agents.Directly printed aligner technology demonstrates significant potential due to its customizability and high precision.Regarding clinical efficacy,evidence indicates that clear aligners achieve comparable results with fixed appliances for mild-to-moderate malocclusions,though their efficiency and effectiveness are slightly inferior in complex extraction cases.Regarding specific tooth movement control,arch expansion primarily relies on crown inclina-tion,yielding results below design expectations;molar distalization achievement is also limited.Studies refute the notion that a specific"bite-ramp effect"causes mandibular counterclockwise rotation.For skeletal class Ⅱ malocclu-sions in children,clear aligners combined with functional orthodontic modules show promising applications,though evidence levels require further enhancement.Re-garding oral health impacts,multiple studies confirm that clear aligners effectively reduce enamel demineralization risk,decrease plaque accumulation,and improve periodontal health compared with fixed appliances.In summary,clear align-er technology has advanced toward great precision,efficiency,and personalization.However,clinicians must recognize its tool-like nature.Successful treatment fundamentally relies on comprehensive diagnosis,appropriate treatment plan-ning,and meticulous clinical execution.关键词
正畸治疗/透明矫治器/固定矫治器Key words
orthodontic treatment/clear aligner/fixed appliance分类
医药卫生
