Dental anaesthetic keeps you comfortable during fillings, extractions, and other procedures. But how long does the numbness actually last once you leave the chair? The answer depends on the type of anaesthetic used, the area treated, and your individual response. Knowing what to expect helps you plan your day and recover smoothly.
How Long Does Dental Anaesthetic Last?
Most dental anaesthetics wear off within a few hours, though sensations like numbness and tingling can linger longer in some areas. Here’s a quick reference for common types used at Advanced Dental Care Mosman:
Type of Anaesthetic | Typical Duration | Common Use |
Lignocaine (short-acting) | 1–2 hours | Fillings, simple extractions |
Articaine | 1–3 hours | Crowns, root canals |
Bupivacaine (long-acting) | 4–8 hours | Surgical procedures, wisdom teeth |
Topical gel | 15–30 minutes | Pre-injection numbing |
The lower jaw generally stays numb longer than the upper jaw because the nerve block affects a wider area. Sedation, your metabolism, and the dose administered also influence recovery time.
Tips for a Smooth Recovery
While the numbness fades, a few simple precautions can prevent injury and discomfort. Most patients feel back to normal within 2–4 hours, but full sensation may take longer after surgical work.
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Do:
- Sip water gently and stay hydrated
- Stick to soft, lukewarm foods like yoghurt or mashed potato
- Rest for the first hour after your appointment
- Apply a cold compress if swelling appears
Avoid:
- Chewing on the numb side until full feeling returns
- Hot drinks, which can cause unnoticed burns
- Biting your lip, cheek, or tongue (a common issue for kids)
- Strenuous exercise for the rest of the day
If numbness persists beyond 8 hours, or you experience unusual tingling, swelling, or pain, contact your dentist. Most reactions settle quickly with rest and proper aftercare, but ongoing symptoms warrant a professional review to rule out nerve irritation or infection.
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Personalised Care You Can Trust
Every patient responds differently to anaesthetic, which is why our team tailors each treatment to your needs. With over 20 years of experience, Dr Priya Shanmugalingam ensures procedures are precise, gentle, and well-explained from start to finish — so you always know what to expect during recovery.
💡 Need help?
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If you have questions about an upcoming procedure or your recovery, contact Your Company Name today for personalised advice.
