kamiawase wo kakuninsimasu.

噛み合わせ is read かみあわせ.

It comes from the verb 噛み合う (かみあう), which means to fit together, to mesh, or literally to bite together. In a dental context, 噛み合わせ refers to how the upper and lower teeth meet—in other words, one’s bite or occlusion.

So the noun has the sense of the way things come together when biting.

を marks the direct object of the verb.

In this sentence:

• 噛み合わせ = the bite / the alignment of the teeth
• を = marks it as the thing being checked
• 確認します = check / confirm

So 噛み合わせを確認します means literally something like:

(I / we) will check the bite.

確認します is the polite -ます form of 確認する.

• 確認 is a noun meaning confirmation or checking
• する turns that noun into a verb: to confirm / to check
• します is the polite form of する

So:

• 確認する = to check / to confirm
• 確認します = check / will check (polite)

This kind of noun + する verb is very common in Japanese.

In Japanese, the -ます form does not neatly separate present and future the way English often does.

So 確認します can mean:

• I check
• I will check
• We are going to check

In this kind of practical situation—especially at a dentist or doctor’s office—it usually means:

We’ll check your bite now.

The exact timing comes from context.

Japanese often leaves out the subject when it is obvious from context.

So 噛み合わせを確認します does not explicitly say:

• I
• we
• the dentist
• the doctor

But in real context, the speaker is usually the one performing the check, so it naturally means something like:

• I’ll check your bite.
• We’ll check your bite.

This omission is completely normal in Japanese.

Yes. 確認します is polite because it uses the -ます form.

This is the kind of phrasing you would expect from:

• a dentist
• a doctor
• clinic staff
• other professionals speaking courteously

A plain-form version would be:

噛み合わせを確認する。

But in a real medical or service setting, 確認します is much more natural.

Yes, but the nuance changes a little.

For example:

• 噛み合わせを見ます = I’ll look at the bite
• 噛み合わせを確かめます = I’ll make sure/check the bite
• 噛み合わせを確認します = I’ll confirm/check the bite

確認します sounds especially natural in professional or clinical settings because it feels a little formal and procedural.

So in a dentist’s office, 確認します is a very natural choice.

The particle を is written with the kana を, but in modern standard Japanese it is usually pronounced simply as o.

So:

噛み合わせを確認します is pronounced roughly like

かみあわせ お かくにんします

Not wo in normal speech.

Normally, Japanese is written without spaces.

So the standard writing is:

噛み合わせを確認します。

Spaces are sometimes added in learning materials to make the parts easier to see:

• 噛み合わせ
• を
• 確認します

That can be helpful for beginners, but it is not the usual way Japanese is written in real life.

This sentence sounds very natural in a dental or medical context.

For example, a dentist or orthodontist might say it before examining how your teeth meet when you close your mouth.

So the sentence is not just general checking—it strongly suggests a professional is examining your bite alignment.