Final answer:
Irrigation solutions in root canal therapy serve to remove debris and bacteria, disinfect the space, and lubricate the canal, which is essential for preventing infection and ensuring successful treatment outcomes.
Step-by-step explanation:
The purposes of irrigation solutions in root canal therapy include removing debris and bacteria from the root canal, disinfecting the canal space, and flushing out any remaining tissue. They also provide lubrication to make it easier for the dentist to work within the canal and may help to prevent the formation of a smear layer, which can interfere with the sealing of the canal. Using the appropriate irrigation solution is vital in preventing post-treatment infection and ensuring a successful outcome for the root canal treatment.