牙科根尖X光片偵測眼球異物之方法臨床及模型之比較研究

依據牙科臨床上常用的異物定位法原理，以牙科常用的樹脂為材料，做成模擬眼球運動架構，以此說明測定眼球內異物位置的簡單原理及方法。將已知X光不透性的異物置於圓球內，使圓球做上、下、外轉和內轉四個不同方向時的相關位置；並以牙科根尖片紀錄圓球內異物在正中位置和四個方向時的相關位置，結果顥示僅用三張牙科根尖X光片，即能判知異物在眼球內的那一象限內。此法在臨床上有各種限制；如僅能測定前1/3眼球內或上、下眼瞼內異物等。但因此法十分經濟，簡單，仍不失為臨床上眼科醫師的參考。

關鍵字

無資料

並列摘要

The purpose of this study is to ultilize dental periapical radiography and the buccalobject rule these are common methods for detecting foreign bodied in the oral cavity, as a means to assist the ophthalmologist in localizing foreign bodies in a patient’s eye ball. Resin material was used to design a model which could imitate the movement of a real eye ball. Prolocated radio-opacity labeled material was embedded in the resin ball. Upon periapical X-ray examination of forward, upward, downward, medial and lateral movements of this resin ball were recorded. The X-ray findings of this eye ball model were then compared with the clinical findings of one patient with an occupationally injured eye ball. A detailed technique was demonstrated and the main principle was explained. This method was only successful in detecting metallic foreign bodies within the cornea, the anterior chamber, and in the overlying area of the ciliary body. As far as the detection of deeper, non-radiopaque foreign material wasn’t practiced by this method. This method could at least serve as a tool to give opthalmologists an approximate location of foreign bodies in the anterior third of an eye ball in order to provide the preliminary information for further advanced examination procedures.

並列關鍵字

periapical film ； ocular foreign body

國際替代計量

牙科根尖X光片偵測眼球異物之方法臨床及模型之比較研究

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