I had cavity in my first molar tooth. Severe pain started in the same tooth from 3 days so i went to a dentist. Then i had an x-ray for that tooth and we found that there is an accumulation of puss in the nerve of my molar tooth because of which my gum of that region has swollen and the swelling is still increasing. My dentist suggested me to have rct or tooth extraction. He suggested that with rct we "might" save your tooth. So, which option i should go for??