Okay Kittykat1980 a very confusing subject, simple answer is both yes and no.
Technically if you are an NHS patient and being treated as such then only the NHS patient charges should apply to you unless an additional private treatment is being provided e.g. tooth whitening.
However due to the new way in which dentists are paid they will often 'dip out' when providing root canal treatment since it is a lengthy and complex procedure.
When a dentist does a 'band 2' course of treatment (which root canal treatment is) they are credited with 3 units of dental activity towards their contract.
Unfortunately a band 2 course can be a simple single filling or ten fillings and three root fillings etc.
Therefore its difficult for many to justify (or afford!) the use of new high tech rotary endodontic instruments (which are single use disposable) on the NHS.