Risks and Complications of Local Anaesthetic, Sedation, and General Anaesthesia in Dentistry
Dental procedures often require various forms of anaesthesia to ensure your comfort and safety. These include local anaesthetic, sedation, or in complex cases, general anaesthesia. While these methods are generally safe and well-tolerated, they do carry some potential risks and complications, which every patient should be aware of.
At Yaas Dental, we are committed to providing transparent information and the highest level of care.
Local Anaesthetic – Commonly Used for Most Dental Procedures
Local anaesthetic (LA) is administered via injection to numb a specific area of your mouth. While this is extremely safe, potential complications include:
Common and Temporary Effects
- Pain or Discomfort at the injection site
- Numbness lasting longer than expected
- Swelling or bruising (haematoma)
Potential Risks
- Needle Fracture: Very rare, but possible if sudden movement occurs during injection.
- Bell’s Palsy: Temporary facial muscle weakness or drooping due to anaesthetic near facial nerves—resolves in most cases.
- Heart Palpitations: Often due to adrenaline in the anaesthetic; short-lived but can be alarming.
- Excessive Bleeding or Infection at the injection site
- Trismus: Limited jaw movement due to muscle or joint inflammation—usually temporary.
- Nerve Injury: Rare but may result in temporary or, very rarely, permanent numbness or tingling (e.g., lip, chin, tongue).
Sedation – For Anxious Patients or More Involved Treatments
Sedation can range from oral sedation, nitrous oxide (happy gas), to intravenous (IV) sedation. While effective, sedation carries its own risks:
Common Effects
- Drowsiness and disorientation after the procedure
- Nausea or vomiting
- Dry mouth or irritation of the veins (IV sedation)
Possible Risks
- Over-sedation leading to breathing difficulties
- Allergic reactions to sedative agents
- Reduced oxygen levels if not monitored properly
- Interaction with medications or existing health conditions
- Delayed recovery in older adults or medically compromised individuals
All sedation procedures at Yaas Dental are carried out with appropriate monitoring and trained professionals.
General Anaesthesia – Typically Performed in a Hospital Setting
General anaesthesia is rarely needed in dental clinics and is usually reserved for complex surgeries or special patient needs, performed in a hospital.
Potential Risks
- Sore throat or hoarseness from breathing tubes
- Nausea and vomiting
- Allergic reactions
- Breathing complications
- Heart irregularities or blood pressure changes
- Longer recovery time
General anaesthesia is always conducted under the supervision of a qualified anaesthetist in a safe, regulated environment.
What You Can Do to Reduce Risks
- Inform us about all medical conditions, medications, and allergies
- Follow fasting instructions before sedation or general anaesthesia
- Arrange for transport and rest after sedation or surgery
- Contact us immediately if you experience unexpected pain, swelling, bleeding, or numbness that doesn’t improve
We’re Here to Support You
At Yaas Dental, your safety is our top priority. Our team is highly trained to manage these risks and will ensure you’re informed every step of the way. Every treatment plan includes a thorough discussion of options, risks, and post-treatment care.
Call 03 8774 2115
Yaas Dental – Safe, Modern, Trusted Dentistry in Narre Warren