Lightweight Opened Hollow Bulb Obturator Using a Precise Positioning Method of Metal Framework in Patients with Partial Maxillectomy: a Case Report A clinical report
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Abstract
Successes of using an obturator in rehabilitation for a maxillectomy patient depend on size and location of defect. Large maxillary defects with a few remaining abutments located in a relatively straight line lead to a decrease in support, stability, and retention of prostheses due to unfavorable leverage. To minimize this leverage, weight reduction of a prosthesis should be considered. In this clinical report, a patient with a large hemimaxillectomy defect was rehabilitated with a one-piece opened hollow bulb obturator using a cast metal framework. A special tray with opening access was used for making a functional impression of the defect site to obtain a precise working cast. Afterwards, the cast was modified at the defect site to simulate the contour of normal ridge using a mixture of plaster and pumice in order to properly position the meshwork. These procedures, including the predetermined reduction of acrylic thickness, resulted in a lightweight obturator with improvement of stability, retention, and function.
Article Details
บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการลงตีพิมพ์ในวิทยาสารทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นถือเป็นลิขสิทธิ์เฉพาะของคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่น หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือเพื่อกระทำการใด ๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษร จากคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นก่อนเท่านั้น
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