Root canal treatment is usually recommended for agonising toothaches. Occasionally, root canal is also used as a preliminary treatment to ensure the natural teeth are preserved in the best possible manner to prepare for further treatment.

Root canal may be recommended as a preliminary treatment before beginning to use invisalign. If the teeth have decayed or deteriorated it is important to repair and restore the core of the tooth before commencing with the aligning teeth or any other cosmetic treatments.  Dentists encourage their patients to book a consultation and check up before arranging any treatments. To proceed with aligning treatments such as invisalign and then to be confronted with symptoms that indicate a problem with the root of the tooth or decay or unwanted bacteria in the pulp would mean the dentist having to delay the invisalign treatment and resort to going back to repairing the tooth and restoring it to a suitable condition for the invisalign braces.

The root canal therapy can also prevent a series of other dental problems occurring. If a patient proceeds with Invisalign or another treatment without undergoing root canal treatment where it is needed the patient may risk not only additional and unnecessary pain but is also at risk from infection and gum disease and if the tooth is left it may be that the tooth needs to be extracted which is far more complicated and time consuming than root canal treatment