It less painful to have laughing gas or novocaine?

Novocaine. If you are having a procedure performed in which there will be some degree of discomfort, nitrous oxide or laughing gas may allow you to feel less anxious, but will do little to alleviate the discomfort from the procedure. You will still likely require a local anesthetic. The nitrous may make the injections more tolerable.
You pick. Adequate administration of either drug should produce the desired effect for minor surgical procedures.

Related Questions

Do you still feel the sting of the novocaine after getting laughing gas?

Not usually. Laughing gas or nitrous oxide has pain relieving properties. You shouldn't feel much, and if you do, you won't cate.
Probably not. Nitrous has analgesic and sedating properties. So you should temporarily check out for the injections.
The sting. You may still feel the "sting" of the "novacaine" after receiving "laughing gas" but generally, you don't care as much or notice it.

I am getting my bottom wisdom tooth pulled and the tooth next to it, they want to give me laughing gas is this better than just novocaine?

In addition to. Laughing gas will not numb you up and therefore it cannot be used alone for extraction of teeth. You will be given local anesthesia to completely numb you up and I agree that for most patients the additional use of laughing gas will give you a "floating" feeling that will relax you, get your mind off the procedure, make time pass more quickly and make the procedure an easier one for you.
Need both. Local anesthetic (novocaine is no longer made) will work ok but adding laughing gas (nitrous oxide) would be better. Nitrous alone is not a great pain killer but is good for anxiety.
Different. The novacaine will get the tooth numb, and the gas will help you relax so you will be less stressed out by the procedure. You will not feel anything, see anything, or hear anything. This will reduce your stress, and less stress will help you heal faster. There are very few side effects. Many patients find this to be very helpful when having wisdom teeth extracted. Ask surgeon your questions.

Do you recommend IV sedation for wisdom tooth removal? Or just laughing gas and Novocaine? I'm concerned I'll never wake up.

Discuss with dentist. We can not recommend either one without having your medical, history and evaluating the difficulty of the extraction. Discuss your concern with your dentist/oral, surgeon. Both procedures when done by well trained professionals aree safe. Nitrous is the safest. Get well.
I'm having a. wisdom tooth pulled at next visit, just local anesthesia, I've done it before, no pain, not even with local after topical.
Recommended. IV Sedation is a safe and convenient procedure which will allow you to access dental care and surgical dental procedures without being aware or remember of the wisdom teeth removal. With the benefits of a little sedation and some local anesthetic, you will find the experience a lot less dramatic than your friends would have you believe. Good luck.

Novocain (procaine) vs. Laughing gas, which one is safer?

Totally different. Novocaine is and injectable local anesthetic. Nitrous oxide is a gas that is an analgesic that can reduce anxiety. It does not anesthetize! Both have good safety records. Nitrous oxide can cause nausea and vomiting if used for a long time or in high concentrations. Local anesthetic can cause palpitations, mostly due to the Epinephrine component, in some people. Rarely are people allergic to local.
Thanks for asking! They have different side effect profile, but usually the local anesthetic-novocain would have more benign effects.

Should I get Novocain (procaine) or "laughing gas" for a cavity filling?

Either. Some restoration are so small, you don't need anything. Others are large and deep enough that you should have the local anesthetic. Since your treating dentist knows how deep this cavity is, why don't you ask them?
Why Not Both? The gas makes an unpleasant experience much more palatable. The shot makes it painless.
Pain free. Everyone has different pain thresholds and different preferences. For some, laughing gas makes the procedure quick, simple and painless. For others they prefer a local anesthetic alone. Many prefer both. Discuss this with your own dentist and he/she can help you decide what is best for you in each circumstance.