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Many local hospitals have a dental area, see one that does.  But before you sit on the chair, make sure you will be given shots to prevent pain.  Some do extractions wihout using analgesit.

Private dental clinics may b a bit more expensive, but you must be as careful as with a hospital 

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like a dental appointment, for even the most minor medical procedures i wait until i am at home

the reasons are:

i can communicate fully with whoever i am dealing with

privacy: there won't be random locals wandering in when it is being done

confidence in any drugs / instruments used

i am sure that there are places in China where all these things are taken care of, but peace of mind is also a big factor

if you go local, a round of antibiotics is not always a part of the default treatment, also local use of antibiotics is sloppy, make sure you get a full supply for 8-10 days depending on the drug. 

You should go to nearest dentist. They usually speak passable English.

I had 3 'wisdoms' taken out by my dad, when 10 Y old. He completed surgery, cut gum on the top of the 'wisdoms', and extract the thingy out. I remember, one was 'dog size' tooth. 

However, I was 'rarity' among other kids, so I think my pop finished his diploma with live practice in my mouth.

if you are all ready in China I would say you had your wisdom removed when you left home

When you find a dentist, closely examine their tools. Talk to them about how they will do the procedure. Avoid clinics. Most dental clinics use barbaric procedures and antiquated tools.

Wisdom teeth? Your best bet is the US or Germany. And be damned the cost.

I wouldn't risk the surgery anywhere in Asia or even other parts of the world like southern Europe or South America (with the possible exception of Chile which has orthodontists and oral surgeons trained in the US.)