Translation guide
A wisdom tooth is one of the four back molars that usually appear in late adolescence or early adulthood. In Japanese, the most common term is 親知らず (oyashirazu), literally 'unknown to parents', reflecting the idea that these teeth come in after a child has left home.
The standard word for a wisdom tooth, used in everyday conversation and medical contexts.
The most common and natural term for a wisdom tooth. Literally means 'unknown to parents'. Used in both casual and formal settings.
A technical/medical term for wisdom tooth. Rarely used in everyday speech; mainly seen in dental contexts or written materials.
智歯の抜歯を行います。
We will perform extraction of the wisdom tooth.
Specifically referring to a wisdom tooth that is trapped under the gum or growing at an angle.
Describes an impacted wisdom tooth that is still under the gum. Literally 'the wisdom tooth is buried'.
親知らずが埋まっていて、痛みがあります。
My wisdom tooth is impacted and it hurts.
Refers to a wisdom tooth growing horizontally. Common in dental consultations.
横向きの親知らずを抜くのは大変だ。
It's tough to extract a horizontally impacted wisdom tooth.
Talking about the procedure of removing a wisdom tooth.
The standard way to say 'to have a wisdom tooth pulled out'. The verb 抜く means 'to extract'.
来週、親知らずを抜く予定です。
I'm scheduled to have my wisdom tooth extracted next week.
A slightly more formal or medical term for wisdom tooth extraction. 抜歯 means 'tooth extraction'.
親知らずの抜歯は保険がききますか？
Is wisdom tooth extraction covered by insurance?
When talking about your own wisdom teeth, simply say 親知らず. There's no need to specify 'my' because context usually makes it clear. If you need to be specific, you can say 私の親知らず (わたしのおやしらず).
親知らず is the everyday word, while 智歯 is a technical term used by dentists or in medical documents. Stick with 親知らず in normal conversation.