Marunick M T, Mathes B E, Klein B B
Department of Otolaryngology, Wayne State University, Harper Hospital, Detroit, Michigan 48201.
J Oral Rehabil. 1992 May;19(3):289-95. doi: 10.1111/j.1365-2842.1992.tb01104.x.
Surgical resection of a segment or loss of continuity of the mandible can adversely affect most of the structures essential for mastication. Five subjects who had hemimandibular resections for cure of squamous cell carcinoma were studied. Masticatory function tests were conducted pre- and post-surgery and post-prosthetic rehabilitation. A 0.5-g Frito corn chip served as the test food, and a sieve analysis was used to evaluate swallowing threshold and masticatory performance. Ten controls were studied in order to determine corresponding normative scores. Post-surgery results indicate that the extent of mandibular resection and loss of continuity tend to decrease masticatory function. The time required to perform the mastication test, and the number of strokes required to achieve swallowing threshold were increased. Prosthetic rehabilitation did improve masticatory function in some patients. Loss of mandibular continuity may not be an absolute predictor of decreased masticatory function.
下颌骨节段性手术切除或连续性丧失会对咀嚼所需的大多数重要结构产生不利影响。对5例因鳞状细胞癌行半侧下颌骨切除的患者进行了研究。在手术前、手术后及假体修复后进行咀嚼功能测试。以0.5克菲多玉米片作为测试食物，采用筛分分析评估吞咽阈值和咀嚼性能。研究了10名对照者以确定相应的正常评分。术后结果表明，下颌骨切除范围和连续性丧失往往会降低咀嚼功能。进行咀嚼测试所需的时间以及达到吞咽阈值所需的咀嚼次数增加。假体修复确实改善了一些患者的咀嚼功能。下颌骨连续性丧失可能并非咀嚼功能下降的绝对预测指标。
