The first 2–4 hours
Immediately after your appointment, the anesthesia will still be active. During this time:
- Numbness is normal — local anesthetic typically wears off 2–4 hours after injection depending on the type used and injection site. Don't be alarmed if your lip, cheek, or tongue remains numb for several hours.
- Don't eat until numbness is completely gone — you risk biting your cheek, lip, or tongue without realizing it. Even soft foods should wait.
- Avoid hot beverages — you won't be able to gauge temperature accurately while numb.
- Some bleeding at the gum margin is normal — if the rubber dam clamp was placed, slight gum irritation at the placement site may cause minor bleeding for a few hours.
- Sensitivity when the anesthesia wears off is expected — prepare for this rather than being surprised by it.
If you had sedation, rest at home with a responsible adult present. Do not operate machinery, make significant decisions, or sign any documents for the remainder of the day.
The rest of day one
- Eat soft foods once numbness has cleared — yogurt, soup, scrambled eggs, smoothies, soft bread
- Avoid chewing on the treated side if possible for the first 24 hours
- Avoid very hot or very cold foods and drinks — new composite restorations can be thermally sensitive initially
- Do not use whitening toothpaste near new composite restorations for at least 2 weeks — it can affect the restoration's surface
- Mild over-the-counter pain relief (ibuprofen or acetaminophen) is appropriate if you experience discomfort as the anesthesia wears off — follow standard dosing instructions
- Rinse gently with warm salt water if you notice gum irritation at the rubber dam site — do not rinse vigorously
Days 2–7
Most patients feel essentially normal by day 2–3. What you might still experience:
- Temperature sensitivity: New composite restorations commonly cause sensitivity to hot and cold for several days to a few weeks. This typically diminishes steadily. Some teeth take longer than others.
- Bite awareness: You may notice the new restoration when you bite or chew. This usually resolves as your mouth adapts. If it feels significantly "high" (like your back teeth aren't meeting normally), contact your dentist — a simple bite adjustment takes less than 10 minutes.
- Gum tenderness: The area where the rubber dam was clamped may remain slightly tender for 3–5 days. This resolves on its own.
- Jaw soreness: Holding your mouth open for an extended appointment can cause muscle soreness similar to any overuse. Gentle jaw exercises and warm compresses help.
What's normal vs what warrants a call
| Symptom | Normal — Monitor | Call Your Dentist |
|---|---|---|
| Temperature sensitivity | Mild, improving over 1–2 weeks | Severe or worsening after 2 weeks |
| Bite feels different | Slight awareness, resolving in days | Significant height discrepancy, pain when biting |
| Gum soreness | At rubber dam site, first 3–5 days | Spreading, worsening, swelling after day 5 |
| Jaw soreness | Muscle fatigue from keeping mouth open | Joint pain, locking, or clicking that's new |
| Mild bleeding | Gum margin, first few hours | Active bleeding not stopping after 30 minutes of pressure |
| Sensitivity to sweets | Very mild, first few days | Sharp, lingering pain when eating sugar |
Dietary guidance by phase
Hours 1–4 (while numb): Nothing by mouth except small sips of room-temperature water.
Hours 4–24: Soft foods only. No chewing on treated side. No extreme temperatures. Good choices: yogurt, applesauce, soft-scrambled eggs, mashed potatoes, smoothies, soup (not hot), soft bread.
Days 2–7: Resume normal eating gradually. Continue avoiding very hard or crunchy foods that require heavy biting force directly on new restorations. Avoid sticky foods (caramel, gum) that could dislodge new composite.
Week 2+: Full normal diet. New composite reaches full cure strength within 24–48 hours of placement, so structural durability is not a long-term concern — only sensitivity may persist.
Follow-up care
Schedule a follow-up visit before you leave the office — typically at 2–4 weeks. This lets your dentist check bite alignment, assess any sensitivity issues, and verify the restoration margins look healthy. If you notice any bite problems or worsening symptoms before your scheduled follow-up, call — most practices will see you for a quick adjustment without charge in the weeks following treatment.