I just want to ask.. my tooth has been decaying for around 7 years and now the crown already chipped into two. Despite this, it causes me no pain except when some food gets in to the cavity.. my gum swelled last month so I decided to visit the dentist just today. When I got to the dentist for tooth extraction, he did not opt for tooth extraction because I didn't feel any pain when he tapped it; instead he made me take 500 mg antibiotic for 5 days. He told me I may have gum infection.. my question is "is my tooth still viable for restoration? or is tooth extraction the only solution to my case?" please, I need to know.. this is the first time I got tooth decay.. thank you..