Kethireddy Sanketh, Kethireddy Keerthi
The Maxillofacial Rehabilitation Centre, Chennai, Tamil Nadu, India.
J Indian Prosthodont Soc. 2017 Jul-Sep;17(3):310-315. doi: 10.4103/jips.jips_227_16.
Increased patient acceptance and widespread use have led to a greater demand for refabrication of existing maxillofacial prostheses exhibiting wear and tear. Refabricating an osseointegrated implant-retained silicone auricular prosthesis on the existing Hader bar is a challenging task if it is performed without removing it. Therefore, an attachment level impression method is utilized for the refabrication of a new prosthesis on an existing Hader bar framework without removing it from the patient's defect. This case report discusses a modification of the Mahidol University technique. This modification provides a simple, speedy, and convenient method through which the relation between the metal framework and attachments could be obtained precisely. This precision allowed for easy fabrication of the acrylic housing, which in turn results in better adaptation of the auricular prosthesis to the patient's face. Therefore, this technique offers advantages to both the prosthetist in fabrication and the patient in facilitating him continue to wear his existing implant-retained prosthesis during refabrication process.
患者接受度的提高和广泛使用导致对修复有磨损的现有颌面假体的需求增加。如果不拆除现有哈德尔杆,在其上重新制作骨整合种植体固位的硅胶耳廓假体是一项具有挑战性的任务。因此,在不从患者缺损处拆除现有哈德尔杆的情况下,采用附着水平印模法在其上重新制作新的假体。本病例报告讨论了对玛希隆大学技术的一种改进。这种改进提供了一种简单、快速且方便的方法,通过该方法可以精确获得金属框架与附件之间的关系。这种精确性使得丙烯酸外壳易于制作,进而使耳廓假体更好地贴合患者面部。因此,该技术对制作假体的修复师以及患者都有优势,患者在重新制作过程中可以继续佩戴其现有的种植体固位假体。