
Post-Operative Instructions for Jaw Surgery (KTPH)
Overview
Medications
- Tablets to be pounded and fed via syringe
- To complete the entire course of the antibiotics
- Please consume painkillers for at least the first 2 to 3 days and as needed after
- If nasal drops are prescribed, instill 2 drops to each nostril with head tilted backwards and allow the liquid to flow through the nose. A bitter taste is expected
Non-Chew Diet
- Supplements: Complan, Ensure, Enercal, Resource, Sustacal
- Beverages: Milk, soya, chocolate, Milo, coffee, tea
- Soups: Cream soups, broths
- Others: Fruit juices, blended food/smoothies, ice cream
- Drink plenty of water, about 2 litres per day is ideal
Oral Hygiene Care
- Proper oral hygiene care using kids’ toothbrush and chlorhexidine mouthwash
- Gently brush the outer surfaces of the teeth, plastic wafer and rubber bands with small amount of toothpaste
- Rinse well with water after
- Gargle with chlorhexidine 0.2% mouthwash by tilting your head from side to side
Airway Obstruction
Keep a sharp pair of scissors close to you in case of airway obstruction (breathing difficulties) due to phlegm, vomit or severe bleeding.
- Cutting the rubber bands using scissors will allow opening of the mouth
- Once this has been done, contact the clinic as soon as possible to manage the situation
Showering
Dressings on the face can be gently removed 3 days after surgery. In the meantime:
- Clean your face with a wet towel
- Prevent excessive water from contacting the dressing when washing your hair
Exercise
- Avoid strenuous exercises and swimming for the first 2 weeks
- Avoid participation in contact sports and activities that may result in trauma to the jaws (e.g. basketball, soccer, ruby, martial arts, rock climbing) for 6 months to prevent accidental fractures of the healing bone
Do not blow your nose
- If you blow your nose repeatedly, air may be forced into the soft tissue, causing additional swelling and potentially infection
- Avoid sneezing with your nostrils pinched
- Sneeze with your mouth open instead
If there is bleeding from the nose
- Do not panic
- Tilt your head forwards
- Pinch just above your nostrils to allow the blood to clot and bleeding to stop
If the bleeding is more profuse:
- Proceed to Khoo Teck Puat Hospital Dental Clinic at C61 during office hours
- Or go to the Acute and Emergency Centre after office hours
Lack of bowel movement or presence of loose stools
- Due to the lack of solid food, it is expected to have little stools
- The stools tend to be soft or watery but it should not be associated with pain or greenish colouration
- There should still be gastrointestinal movement and gas emission
Emergency
- During office hours: proceed to Khoo Teck Puat Hospital Dental Clinic at C61
- After office hours or during the weekend: proceed to Khoo Teck Puat Hospital Acute and Emergency Centre
This article was published by Khoo Teck Puat Hospital and updated in 2026.

