onlay

onlay — 名詞

1. A thin piece of metal, ceramic, or other hard material that a dentist fixes onto

1.名詞B2
釋義

嵌體

覆蓋牙齒表面的修復物

A thin piece of metal, ceramic, or other hard material that a dentist fixes onto a damaged tooth to cover and protect its broken surfaces, used when a filling is too weak for the damage.

例句

After the crack reached her molar's edge, Dr. Park suggested an onlay instead of a larger filling.

裂縫延伸到臼齒邊緣後，Park 醫師建議做嵌體而不是更大的填補。

contrast: onlay vs. filling

The ceramic onlay matched Yuki's other teeth so well that no one could see it.

Yuki 的陶瓷嵌體和她的其他牙齒顏色非常相近，沒有人看得出來。

常見搭配
  • ceramic onlay
  • gold onlay
  • metal onlay
  • onlay restoration
  • onlay procedure
同義詞
  • dental crown

    A crown covers the entire tooth; an onlay covers only part of it.

用法筆記

Distinguish from an 'inlay' — an inlay sits inside the tooth's cusps, while an onlay extends over one or more cusps to protect the entire chewing surface.

常見錯誤

The dentist put an inlay on my back tooth to cover the whole surface.
The dentist put an onlay on my back tooth to cover the whole surface.
an inlay fits inside the tooth; an onlay covers the cusps.

2. A piece of bone, cartilage, or other tissue that a surgeon places on top of a da

2.名詞C1
釋義

表面植片

貼附在受損組織上的移植材料

A piece of bone, cartilage, or other tissue that a surgeon places on top of a damaged body part — for example, a broken shin or a weak jawbone — to help the body rebuild itself.

例句

The surgeon took a piece of bone from Amir's hip and placed it as an onlay on his shin.

醫師從 Amir 的髖部取了一塊骨頭，當作表面植片放在他的脛骨上。

donor site to recipient site

After the accident, Priya needed a bone onlay to rebuild her lower jaw.

車禍之後，Priya 需要做骨頭表面植片來重建她的下頜骨。

常見搭配
  • bone onlay
  • cartilage onlay
  • onlay graft
  • onlay technique
  • onlay procedure
同義詞
  • graft

    A broader term; an onlay is a specific type of graft applied to the surface.

用法筆記

In surgery, 'onlay' contrasts with 'inlay graft' (which is placed inside a defect). An onlay sits on the surface and is often used to build up a weakened area.

常見錯誤

The surgeon used an onlay graft inside the bone cavity.
The surgeon placed an onlay graft on the surface of the bone.
an onlay goes on top of the tissue, not inside a cavity.