Rawatan salur akar gigi bermula esok.

A natural breakdown is:

• rawatan = treatment
• salur = channel, tube, canal
• akar = root
• gigi = tooth / teeth
• bermula = begins, starts
• esok = tomorrow

So the middle part salur akar gigi literally looks like canal of tooth root, which is how Malay builds the idea of root canal.

Malay noun phrases are usually head-first, unlike English.

A useful way to read this stack is from the right:

• gigi = tooth
• akar gigi = tooth root
• salur akar gigi = canal of the tooth root = root canal
• rawatan salur akar gigi = treatment of the root canal = root canal treatment

So English often works from left to right with adjectives or compound nouns, but Malay often builds the phrase by putting the main noun first and then adding words after it.

Because Malay often links nouns just by placing them next to each other.

So instead of saying something like:

• treatment for the root canal
• canal of the tooth root

Malay can simply say:

• rawatan salur akar gigi

This kind of noun chaining is very common in Malay. The relationship between the nouns is understood from context.

Malay does not normally use articles like English a, an, or the.

So:

• Rawatan salur akar gigi bermula esok can mean
  The root canal treatment begins tomorrow
  or, depending on context, A root canal treatment begins tomorrow

Usually the context tells you which one is meant. In this sentence, English will most naturally use the.

Because bermula means to begin / to start as an intransitive verb: the subject itself is starting.

Here, the subject is:

• Rawatan salur akar gigi = the root canal treatment

So the meaning is:

• The treatment begins tomorrow

By contrast, memulakan is usually transitive and means to start something.

For example:

• Doktor memulakan rawatan itu esok = The doctor starts that treatment tomorrow.

So:

• rawatan ... bermula = the treatment begins
• doktor memulakan rawatan ... = the doctor begins the treatment

In this sentence, bermula functions as a verb meaning to begin or to start.

The prefix ber- often forms verbs that describe a state, action, or process involving the subject. You do not always need to translate ber- by itself; it is better to learn the whole word:

• mula = beginning / start
• bermula = to begin, to start

So for learners, the safest approach is to understand bermula as a complete vocabulary item.

Because Malay often does not mark tense directly the way English does.

The word esok already tells you the event is in the future:

• bermula esok = begins tomorrow

So akan is optional here. You could also say:

• Rawatan salur akar gigi akan bermula esok

That is also correct and makes the future meaning more explicit. But without akan, the sentence is still perfectly natural because esok already gives the time.

With common time words like esok (tomorrow), Malay usually does not need a preposition.

So these are natural:

• bermula esok
• datang esok
• jumpa esok

Using pada before esok is generally not the normal everyday choice here. Simple time adverbs often stand on their own.

It can be either, depending on context, because Malay nouns usually do not change form for singular vs. plural.

So:

• gigi can mean tooth
• gigi can also mean teeth

In salur akar gigi, it is best understood generically as tooth, giving the idea tooth root canal = root canal.

Yes, it is a normal and understandable medical expression.

More generally:

• salur = canal/channel
• akar gigi = tooth root

So salur akar gigi is a precise way to refer to the root canal area.

In real life, you may also hear shortened or less technical ways of referring to the procedure, depending on the speaker and context, but the sentence you were given sounds clear and medically appropriate.

Yes, Malay allows some flexibility, especially with time expressions.

These are all possible, though they can differ slightly in emphasis:

• Rawatan salur akar gigi bermula esok
• Esok, rawatan salur akar gigi bermula

The original version is very natural and straightforward. Putting esok first gives extra emphasis to the time:

• Tomorrow, the root canal treatment begins

So the sentence order can change, but the original is a standard neutral way to say it.