1) no other parts affected by tooth extraction
2) how long tooth extraction procedure goes on depends upon tooth position and condition.
If it is normal forceps extraction genrally it takes 10-30 mins. But it may differ. Sometimes it may be longer upto 1 hr
In case of surgical removal or trans alveolar extraction it may take upto 1 hr or more
3) generally tooth extraction is done under local anaesthesia,so no pain is there but in case of back side large teeth you may feel pressure during extraction time though which is bearable and no need to worry about
Next Steps
if you are anxious about the procedure you should tell this to your dentist he/she will give you medicines accordingly.
Health Tips
if tooth can be restored by RCT go for it,as RCT is more safe and less strenous. consult with your dentist regarding this .(though RCT could not be done in every tooth)