Flos gigi membantu menjaga gusi.

Yes. Flos gigi is a normal and natural way to say dental floss.

Literally:

• flos = floss
• gigi = tooth / teeth

So the phrase is literally something like tooth floss or teeth floss, which matches how Malay often builds noun phrases.

In Malay, the main noun usually comes first, and the describing word comes after it.

So:

• flos gigi = dental floss
• berus gigi = toothbrush
• klinik gigi = dental clinic

This is very common in Malay. English often puts the modifier first, but Malay usually puts it after the noun.

It can mean either tooth or teeth, depending on context.

Malay nouns usually do not change form for singular vs. plural the way English nouns do. So:

• gigi can mean tooth
• gigi can also mean teeth

In flos gigi, English would normally translate it as dental floss or tooth floss, not teeth floss, even though the Malay word itself does not force a singular/plural distinction.

Membantu means to help.

In this sentence, it links the subject to another action:

• membantu menjaga = helps to maintain / helps take care of

Malay often puts one verb directly after another like this, without needing a separate word like English to.

Because in Malay, after membantu, you can usually follow directly with another verb.

So:

• membantu menjaga gusi = natural
• helps maintain the gums / helps take care of the gums

Adding untuk is usually unnecessary here. A learner may expect a word equivalent to English to, but Malay often leaves it out.

Jaga is the base word, and menjaga is the active verb form.

The prefix meN- often makes a verb sound more standard, complete, or formal in normal written Malay.

So:

• jaga = guard / take care of / keep
• menjaga = to take care of / to maintain / to look after

In a full written sentence like this, menjaga is the expected form.

Here, menjaga means something like:

• to take care of
• to maintain
• to keep healthy
• to look after

So menjaga gusi is not just watching the gums. It means caring for them so they stay healthy.

That is why a natural English translation might be:

• helps maintain healthy gums
• helps take care of the gums
• helps keep the gums healthy

Malay often leaves out articles and possessives when the meaning is already clear from context.

So:

• gusi can mean gums, the gums, or your gums, depending on context

In a general health statement, Malay commonly uses the bare noun:

• Flos gigi membantu menjaga gusi.

If you want to be more specific, you could say:

• gusi anda = your gums
• gusi kita = our gums

But the original sentence is perfectly natural without them.

Like many Malay nouns, gusi does not have a separate plural form in normal use. It can mean either gum or gums, depending on context.

In this sentence, English would usually translate it as gums, because that is what sounds natural in a health statement.

Yes, it is natural, especially in health advice, packaging, or educational material.

A few other natural versions are:

• Flos gigi membantu menjaga kesihatan gusi. = Dental floss helps maintain gum health.
• Menggunakan flos gigi membantu menjaga gusi. = Using dental floss helps take care of the gums.

But Flos gigi membantu menjaga gusi. is already clear and idiomatic.

A simple approximation is:

• flos = like English floss, but with a clean short vowel
• gigi = gee-gee with hard g sounds
• membantu = mem-BAHN-too
• menjaga = men-JAH-gah
• gusi = GOO-see

Malay pronunciation is usually quite regular, so once you know the spelling rules, it is often easier to pronounce than English spelling.