Salvinelli F, Maurizi M, Calamita S, D'Alatri L, Capelli A, Carbone A
Department of Otolaryngology, Catholic University of Sacred Heart, Rome, Italy.
Scand Audiol. 1991;20(4):253-6. doi: 10.3109/01050399109045972.
The study of the anatomical variations of the external ear is important for the ear surgeon who assesses the middle ear in this way. Furthermore, the design of insert earmoulds for use with either hearing aids or portable radios requires a better knowledge of the shape of the external ear. We studied the external ear structures and the drumhead in 140 cadavers with no previous history of ear pathology. A silicone resin was used, employing a dental impression technique. These permanent impressions were analysed by means of an operating microscope. Different parameters were studied, to determine the average dimensions of the structures. The clinical significance of these results is discussed.
对外耳解剖变异的研究，对于以这种方式评估中耳的耳外科医生而言十分重要。此外，设计用于助听器或便携式收音机的插入式耳模，需要对外耳形状有更深入的了解。我们研究了140具无耳部病理既往史的尸体的外耳结构和鼓膜。采用牙科印模技术，使用了硅树脂。通过手术显微镜对这些永久性印模进行分析。研究了不同参数，以确定结构的平均尺寸。并讨论了这些结果的临床意义。
