Hi.. Thanks for the query.. As per your complain if you have a broken tooth you should first get an intentional root canal treatment done if required followed by Capping of the tooth.. You are fit for a dental test until you do not have any active dental disease and you have got all the cavities and fractured teeth treated.. In case you have to appear for some dental test get your teeth cleaned by getting a Scaling done to remove all the stains and deposits on teeth as well as get all the remaining decays or other pathologies treated.. If you have any missing tooth caused due to decay leading to extraction you should get a fixed prosthesis placed.. Maintain a good oral hygiene.. Hope this information helps.. Regards.