What are possible treatment options? My dentist is suggesting removing…

Two adjacent teeth are connected and covered with glass ceramics. The work was done 8 years ago, the pin that was inserted into the channel is broken. One of the connected teeth has an infection, it started to have inflammation. As a result of inflammation, secretions (pus) came out through the gum area. The tooth is visible in the rengen photo. What are the methods of treatment without removing the tooth? But getting rid of the infection