**Eating and chewing:** 1- Do not eat or chew for an hour after the treatment and preferably until the anesthesia is completely removed... **biting and pressing the teeth together:** 2- Due to the fragile structure of the tooth, after the end of root canal treatment, do not put pressure on the mentioned tooth and do not bite anything until the crown of the tooth is completely repaired or covered... **Brushing:** 3- Brushing the root treated tooth is safe, but due to the presence of a temporary dressing on the tooth and the possibility of removing it, do not use dental floss until the desired tooth is repaired and covered. ** Removal of dental dressing:** 4- In case of removing the dressing on the tooth between sessions, contact the office. **Swelling inside or outside the tooth:** 5- If you see swelling inside or outside the mouth, contact the doctor's office so that the appropriate medicine can be prescribed if needed. It is worth mentioning that swelling is a natural side effect of root canal treatment. Illness, consult your doctor before taking any medicine... **Eating solid foods:** 8- Avoid eating and chewing hard foods on the treated tooth because it may cause the tooth to break. Obviously, if the fracture has spread to the root surface, the tooth in question must be extracted. **Pressing on the denervated tooth:** 9- Avoid putting unnecessary pressure on the tooth with your tongue and fingers because it causes long-term tooth sensitivity and pain... 10- Repair the crown or crown immediately after the pain is relieved... If the interval between the root treatment is long, the root treatment must be done again or the tooth in question must be pulled... **Visit at the designated times** 11- In the case of teeth that have been rooted or have infections and cysts, if you insist on control, be sure to return for an examination at the recommended time so that if you need root canal surgery or if you need to pull it, the examination will be done..