醫療類國考
106年
[牙醫師] 牙醫學(三)
第 10 題
下列何者為判定單一牙根中是否含有兩個根管的較佳方式？
- A 使用根管用顯微鏡觀察
- B 使用根管用探針探測
- C 改變（shift）X光照射角度
- D 用電子根尖定位器（electronic apex locator）偵測
思路引導 VIP
若你正對著一個半透明圓柱體觀察，裡面有兩根細針剛好「前後重疊」在你的視線上，此時你在不破壞圓柱體的情況下，該如何移動你的觀察視角，才能看清楚圓柱體內其實有兩根細針，而非一根？
🤖
AI 詳解
AI 專屬家教
AI SENSEI OIKAWA: Nice Receive! ✨
[camera flashes, I give a confident YA!]
- Concept Spiked!: Hmph, not bad, junior! You actually nailed a core concept in dental radiography! A single X-ray? That's just a 2D flat projection, right? Like looking at a photo of a volleyball match – you can't always see everyone behind the front line. So, when those root canals are playing defense, lining up perfectly cheek-to-tongue, they'll totally overlap! Annoying, but that's how the game is played.
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