My lower left wisdom tooth is grossly decayed and broken off at gum line. how will the dentist remove it? well it be easier or harder on me?

Oral Surgeon: An oral surgeon has years of experience and training to tackle these types of extractions. Don't fret, you will be just fine. It should be no different than extracting any other tooth.

Wisdom tooth: See a specialist Oral Surgeon (ask your Dentist for recommendation). Oral Surgeon is the best trained and experienced practitioner to resolve your problem expeditiously and with the least discomfort. Then make appointment with General Dentist for comprehensive care so that this never happens again.