U.S. doctors online nowAsk doctors free
A 45-year-old member asked:

how long will the anesthesia effect last after a cavity filling?

3 doctor answers5 doctors weighed in
Dr. Mini Sambhavita Rangrass
Dentistry 21 years experience
A few hours : The duration of local anesthesia varies with the type of anesthesia given. Typically, the effect lasts from 2-4 hours, but in many people it can last for up to half the day. You may speak to your dentist for the option of having the length of anesthesia increased or decreased by the type of numbing agent they give you.
Dr. Daniel Sampson
Oral and Maxillofacial Surgery 26 years experience
It depends: On the type of local anesthetic that the dentist uses. Some last about an hour while others may last up to 12 hours. Discuss with your dentist.
Dr. Richard Pollard
Anesthesiology 30 years experience
Varies: Some local anesthetics wear off within 30 minutes, while other are specifically designed to be active for up to 20 hours. It depends on the type and location of the drug. Talk to your anesthesiologist or dentist about medications that they will use.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

A 45-year-old member asked:

Could having general anesthesia just before conception be dangerous to my baby?

3 doctor answers16 doctors weighed in
Dr. Jeff Livingston
Obstetrics and Gynecology 22 years experience
No: Medications used during anesthesia are out of your system very quickly. There would be no risk during pregnancy having anesthesia befor conception. Even during pregnancy anesthesia is sometimes required for various surgical emergencies.
CA
A 24-year-old member asked:

How is general anesthesia different from local anesthesia?

3 doctor answers10 doctors weighed in
Dr. Martin Wertkin
Specializes in General Surgery
In many ways: Local anesthesia involves injecting an anesthetic agent into one part of the body to make it numb--giving novocaine for dental work is an example. General anesthesia involves injecting an anesthetic intravenously to make you unconscious.
CA
A 28-year-old member asked:

Why doesn't local anesthesia spread to the whole body?

3 doctor answers11 doctors weighed in
Dr. Scott Mackinnon
Anesthesiology 33 years experience
"Local" is why: "local" anesthesia does just that-a small dose of a numbing agent is injected near a nerve, that, when in a certain concentration, blocks impulses through that nerve. The result is numbness and weakness in the distribution of that nerve. This resolves as the local anesthetic is 'washed out" by blood and the localized concentration now will decrease-allowing the nerve to work again.
CA
A 38-year-old member asked:

What is anesthesia therapy for a lower lumbar herniated disc?

4 doctor answers7 doctors weighed in
Dr. Scott Roethle
Anesthesiology 16 years experience
General anesthesia: If you are having surgery such as lumbar laminectomy, discectomy, and/or fusion, you will recieve general anesthesia. However, a herniated disc does not always require surgery and is dependent on your symptoms and treatments. Physical therapy, epidural steroids, and/or oral pain medications are often sufficient treatment of symptoms of a hernieated disc.
A 43-year-old member asked:

How are social class and dental caries related?

3 doctor answers7 doctors weighed in
Dr. J BARRY Stovall
General Practice 46 years experience
Diet: This is a generalization. Some social classes have diets that are high in carbohydrates (sugars). Access to care as well as making dental health a priority are also factors.

Related questions

A 32-year-old member asked:
4 doctor answers7 doctors weighed in
A 42-year-old member asked:
3 doctor answers3 doctors weighed in
A 37-year-old member asked:
3 doctor answers4 doctors weighed in
A 19-year-old female asked:
1 doctor answer2 doctors weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Sep 19, 2018

People also asked

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with
membership

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.