Department of Prosthodontics, Sri Ramakrishna Dental College and Hospital, Coimbatore, India.
J Prosthodont. 2012 Apr;21(3):209-14. doi: 10.1111/j.1532-849X.2011.00810.x. Epub 2012 Feb 22.
Hypermobile ridges or flabby edentulous ridges are a common occurrence in edentulous patients. The literature reveals that the mucostatic impression technique is one of the treatment options in this scenario. Conventional mucostatic methods like employing a window tray technique, multiple relief holes, or double spacers can be employed when the flabby tissue is localized. But in cases of generalized flabbiness of the residual ridge, even the manual placement and manipulation of a custom tray may distort the tissues, violating the principle of mucostatics. This presentation is a clinical report of a patient with a generalized flabby maxillary edentulous ridge opposing a partially edentulous mandibular arch. A split two-part special tray using the principle of magnetic attraction for self retention was fabricated. This self retention ruled out finger pressure during impression making, helping to achieve mucostatics.
无牙颌患者中常见高活动性牙槽嵴或松软无牙牙槽嵴。文献表明，在这种情况下，黏膜稳定印模技术是一种治疗选择。当松软组织局限时，可以使用常规的黏膜稳定方法，如采用窗型托盘技术、多个减压孔或双层间隔物。但在剩余牙槽嵴普遍松软的情况下，即使是定制托盘的手动放置和操作也可能会导致组织变形，违反黏膜稳定的原则。本报告介绍了一位上颌无牙颌且牙槽嵴松软患者，下颌为部分牙列缺失的病例。使用磁体自固位原理制作了分体式两部分特殊托盘。这种自固位方式排除了取印模时手指施压的可能性，有助于实现黏膜稳定。
