无预备瓷贴面修复研究现状

A review on research status of no-preparation ceramic veneer restorations

无预备瓷贴面在特定情况成为临床医师及患者的选择,其适应证和材料选择较传统瓷贴面更局限。研究表明无预备瓷贴面与传统瓷贴面短期临床表现相近,可减轻患者术前紧张程度和减少术后敏感发生,但其边缘适合性稍有不足。无预备技术保存了完整的牙釉质,增加了修复体的粘接强度和牙体的抗折性能,但一些部位存在微小倒凹导致组织面密合性欠佳。关于无预备瓷贴面咬合设计尚无统一结论。尽管已有学者提出并探讨了无预备瓷贴面技术,仍需更多临床研究数据支持。

No-preparation ceramic veneers have become the choice of clinicians and patients under certain circumstances although their indications and material selections are limited.Previous studies have shown that the short-term clinical performance of no-preparation ceramic veneers is similar to that of traditional ceramic veneers,with lower preoperative mental tension and postoperative sensitivity but lack of marginal adaption.No-preparation technique preserves the entire enamel and increases the bonding strength of the restorations and fracture resistance of the tooth,but the internal adaptions are not perfect since some minor undercuts are not removed.However,there is no consensus on the occlusion design and clinical protocol of no-preparation veneer.Although no-preparation technique has been proposed,more clinical randomized controlled trials should be performed to obtain consistent results.