Preparing for oral surgery starts several days before the procedure and covers everything from what you eat that morning to what you stock in your kitchen for recovery. Most of the steps are straightforward, but missing even one, like forgetting to stop a supplement or eating too close to your appointment, can delay or cancel your surgery. Here’s what to handle and when.
Follow Fasting Rules Carefully
If you’re receiving IV sedation or general anesthesia, your stomach needs to be empty to prevent vomiting during the procedure, which can cause food or liquid to enter your lungs. The standard rule: stop eating solid foods and dairy at least 8 hours before your scheduled arrival time. That includes milk, yogurt, and smoothies.
Clear liquids are a different story. You’re actually encouraged to drink them up to 2 hours before your arrival. Clear liquids include water, apple juice, black coffee or plain tea (no milk or creamer), and electrolyte drinks like Gatorade or Pedialyte. If a drink isn’t see-through, it doesn’t count. Avoid alcohol for at least 8 hours beforehand.
If your procedure only involves local anesthesia (a numbing injection with no sedation), fasting usually isn’t required. In fact, eating a light meal beforehand can help. Your surgeon’s office will clarify which type of anesthesia you’re getting.
Review Every Medication and Supplement
Blood-thinning medications and even common over-the-counter painkillers can significantly increase bleeding during surgery. The list is longer than most people expect: prescription blood thinners like warfarin, newer anticoagulants like rivaroxaban and apixaban, antiplatelet drugs like clopidogrel, and everyday painkillers like ibuprofen (Advil, Motrin) and naproxen (Aleve) all affect how your blood clots.
Aspirin is especially worth noting because it permanently alters your platelets for their entire 7 to 10 day lifespan. Your body has to produce entirely new platelets before normal clotting returns. Warfarin also takes several days to wear off after you stop taking it.
Herbal supplements can cause the same problems. Fish oil, vitamin E, ginkgo biloba, garlic supplements, and ginseng all have blood-thinning properties. Stop these well ahead of your procedure, typically a week or more.
The critical rule here: never stop or change a prescribed medication on your own. Your surgeon and your prescribing doctor need to coordinate. They’ll decide together whether to pause a medication, for how long, and when to restart it. Call both offices at least a week before surgery to sort this out.
Know If You Need Preventive Antibiotics
Most people do not need antibiotics before oral surgery. But a small group of patients with specific heart conditions should take a dose before any procedure that involves the gums or deeper tissue. This prevents bacteria from the mouth from reaching the heart and causing a serious infection called infective endocarditis.
You fall into this group if you have a prosthetic heart valve (including a transcatheter-implanted valve), materials used for heart valve repair such as annuloplasty rings, a history of infective endocarditis, a heart transplant with certain valve problems, or specific unrepaired congenital heart defects. If any of these apply, make sure your surgeon knows well before the day of surgery so the antibiotic can be prescribed and timed correctly.
One thing that surprises many people: artificial joint replacements (hip, knee) generally do not require preventive antibiotics before dental procedures. The American Dental Association’s guidelines no longer recommend this for most joint replacement patients.
Manage Diabetes and Blood Sugar
If you have diabetes, the timing of your appointment matters. Morning procedures are typically better because your body’s natural cortisol levels are highest early in the day. Cortisol raises blood sugar, which lowers your risk of a dangerous blood sugar drop during the procedure.
If you’re using insulin, your appointment should be scheduled to avoid coinciding with your insulin’s peak activity, when blood sugar drops lowest. When sedation requires fasting, your diabetes medication dosing may need to be adjusted since you won’t be eating normally. Contact your physician ahead of time to work out a modified plan for the morning of surgery.
Uncontrolled blood sugar can lead to slower healing and higher infection risk, and your surgeon may postpone the procedure until levels are better managed.
Reschedule If You’re Sick
Don’t assume you should push through a cold or mild illness. Respiratory infections, even a lingering cough or mild bronchitis, increase the risk of serious breathing complications under general anesthesia. Conditions that typically force a postponement include influenza, wheezing, shortness of breath, severe cough, and any active fever.
Fever alone accounts for roughly 24% of all elective surgery cancellations. Even a low-grade temperature may be a problem if the cause isn’t clear. Vomiting is another automatic delay since it dramatically raises the risk of aspiration during anesthesia.
For COVID-19, expect your surgery to be postponed until you’ve been fever-free without medication for at least 24 hours and at least 10 days have passed since symptoms started. For a common cold, the general guideline is waiting two weeks after symptoms fully resolve. Call your surgeon’s office as soon as you feel ill rather than waiting until the day of your appointment.
Arrange a Ride and Post-Op Supervision
If you’re receiving any form of sedation or general anesthesia, you will not be allowed to leave the office alone. A responsible adult must be there to accompany you home. This isn’t a suggestion; the surgical team will confirm your ride is present before beginning the procedure. Some offices will cancel if no one is there to pick you up.
Plan for that person to stay with you for at least a few hours afterward. Sedation affects your judgment, coordination, and reaction time well beyond the point where you feel “fine.” You shouldn’t drive, operate machinery, or make important decisions for the rest of the day.
Stock Up on Recovery Supplies
You won’t want to run errands after surgery, so have everything ready at home before you leave for your appointment. Here’s what to have on hand:
- Soft foods: Yogurt, ice cream, pudding, scrambled eggs, soft pasta, soups, smoothies, mashed potatoes, and cooked vegetables. Cool and cold foods tend to feel best on the first day.
- Ice packs: You’ll use these in 20-minutes-on, 20-minutes-off cycles for the first 24 to 48 hours. Bags of frozen peas work well because they conform to your face. Have at least two so you can rotate them.
- Gauze pads: Your surgeon may provide some, but extra gauze is useful for managing bleeding in the first few hours.
- Tea bags: A moistened tea bag pressed firmly over the surgical site for 5 to 10 minutes can help slow persistent oozing. The tannic acid in tea promotes clotting.
- Salt: You’ll likely be instructed to do warm saltwater rinses starting the day after surgery. One teaspoon of salt in a glass of warm water is the standard ratio.
- Soft-bristle toothbrush: Your regular brush may be too aggressive near the surgical area.
- Ginger ale or ginger candies: Useful if anesthesia leaves you nauseous, which is common.
The Night Before and Morning Of
The evening before surgery, brush and floss thoroughly. Some surgeons will ask you to rinse with an antiseptic mouthwash containing chlorhexidine, which reduces bacteria in your mouth and lowers the chance of infection. If your surgeon provides a prescription rinse, swish it for a full minute. If they haven’t mentioned one, it’s worth asking.
On the morning of surgery, wear comfortable, loose-fitting clothing with short sleeves or sleeves that roll up easily (an IV may be placed in your arm). Leave jewelry, watches, and contact lenses at home. If you wear dentures or a retainer, ask whether to bring them or leave them behind. Tie long hair back and skip makeup or lip products that could interfere with monitoring equipment.
Set out your insurance card, photo ID, and any paperwork your surgeon’s office has asked you to complete. Charge your phone and leave valuables in the car or at home. Arriving 15 to 20 minutes early gives the staff time to check vitals and answer last-minute questions without rushing you into the chair.