The purpose of getting a root canal is to save your tooth when it would otherwise have to be extracted. For more you can read here.

1. Everything You Need To Know About Root Canals
There are a lot of people out there who do not like visiting the dentist
and will put it off for as long as they can. It’s somewhat
understandable as having dental treatment can be uncomfortable,
even under sedation. One thing that many people dread being told is
that they need to have a root canal.
Root canals have a reputation amongst people who’ve never had one
for being painful and something to fear. However the truth is that they
are nothing to worry about and are simply another kind of treatment
that’s necessary for your oral health.
Are they really necessary?
If your dentist has told you that you need a root canal then the answer
is yes. Although it may be possible to fill the tooth as a temporary
measure, it’s always better to get root treatment as soon as possible.
The purpose of a root canal is to save your tooth by treating the pulp
(the soft tissue inside your tooth), which may have become inflamed or
infected. Untreated problems with pulp inflammation or infection can
lead to a variety of problems included abscesses and pain.
Are they painful?
This is one of the biggest things that people worry about but the truth
is the vast majority of people who get a root canal do not experience
any pain. In fact the only part that could be described as unpleasant is
the administering of the local anaesthetic.
Once the anaesthetic has taken effect, the rest of the procedure can be
carried out without any pain or discomfort. In fact a lot of people say
that having a root canal is preferable to getting regular fillings. This is
usually because there isn’t as much drilling involved.
The benefits of getting a root canal
It’s important to remember that the purpose of getting a root canal is
to save your tooth when it would otherwise have to be extracted.
Other benefits include -
 Retains the natural appearance of your teeth
 Allows you to chew food as normal without any discomfort
 Protects your other teeth from any strain or wear
 You can bite with regular force without worrying about damage
or pain.

2. Where do I receive root treatment?
Any qualified dentist will be capable of doing root canal treatments
although you may prefer to go to a root canal specialist. A specialist
will have more experience carrying out root canals and will be better
equipped to deal with any complications that might arise.
That being said, you may feel more comfortable with your regular
dentist, in which case they will be more than capable of carrying out
the procedure in a way that’s effective and completely painless for you.
Ultimately the decision is yours to make.