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A 42-year-old member asked:

how long the anesthesia effect will last for tooth cavity filling?

3 doctor answers3 doctors weighed in
Dr. Jake Richards
Dentistry 12 years experience
2-3 hrs: Usually about that long but sometimes it is quicker or slower. Get your blood pumping and it will go away faster, go for a jog...
Dr. Michael Teitelbaum
Dentistry 32 years experience
0-4 hours: Dpends if you "drilless" dentistry, you won't be numb, short acting anesthesia can wear off as quickly as 40 min, long acting can go 4 even 6 hrs.
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.

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Similar questions

A 36-year-old member asked:

Is it safe to bleach my teeth while i'm pregnant?

3 doctor answers5 doctors weighed in
Dr. Padmavati Garvey
A Verified Doctoranswered
A US doctor answeredLearn more
Yes: Yes but you should follow the instructions on the box if you are using an over the counter.
Dr. Alex Shvartsman
Cosmetic Dentistry 25 years experience
Yes is not correct. as no studies have been done. so its impossible to say for sure.
Dec 1, 2012
Dr. Arnold Malerman
Orthodontics 53 years experience
Dr Shvartsman is correct. Also note that OTC products are no where near as effective as Rx by your Dentist...you get what you pay for.
Dec 25, 2014
Dr. Jeffrey Juchau
Family Medicine 33 years experience
Just to be devils advocate , no tests have been done in pregnant women for using makeup or hairspray but we let them do that as well. There is no systemic absorption of the hydrogen peroxide in pregnant women than in other women even without a study.
Dec 25, 2014
A 32-year-old member asked:

Are there special dental care recommendations for pregnant women?

5 doctor answers11 doctors weighed in
Dr. Megan Bird
Obstetrics and Gynecology 19 years experience
Yes: There are some things to avoid in pregnancy like nitrous oxide (laughing gas) and certain antibiotics. Short of that, dental care is encouraged. Poor dental care has been related to early delivery and infections. It is safe to get dental xrays and dental work during pregnancy. Your doctor can write a note for the dentist detailing what to avoid.
A 52-year-old member asked:

Can an iron supplement in the elderly turn teeth black?

2 doctor answers7 doctors weighed in
Dr. Michio Abe
Internal Medicine 26 years experience
Yes: Liquid forms of iron supplement tend to stain the teeth. To prevent these stains, mix each dose in water and/or drink water after each dose. You may use a straw to help keep the iron supplement from getting on the teeth. iron stains on teeth can usually be removed by brushing with baking soda or hydrogen peroxide.
A 35-year-old member asked:

I have charcot marie tooth disease and have had breathing problems and sweat a lot. Is this normal with cmt?

3 doctor answers6 doctors weighed in
Dr. Emily Lu
Dr. Emily Luanswered
Family Medicine 7 years experience
Maybe: Cmt is a spectrum of disorders that generally manifest as peripheral motor & sensory nerve problems. While some types can affect breathing, they usually manifest at a young age. In adults CMT usually affects leg & arm nerves/muscles more & is unlikely to cause sweating. Sweating may be a side effect of a medication. I would get your breathing checked out to make sure it's not something else.
A 35-year-old member asked:

Does fluoride produce fluorapatite crystals to help prevent dental caries?

2 doctor answers6 doctors weighed in
Dr. J BARRY Stovall
General Practice 46 years experience
Enamel: Fluoride binds to the enamel to make it harder and more resistant to decay.

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Last updated Apr 24, 2015
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