Please choose the correct ending to complete the given sentence: Health: [header] How to prepare for tooth extraction [title] Learn why you need your tooth extracted. [step] There are a variety of reasons why you need tooth extraction surgery. Some of them include : [substeps] Teeth are blocking others from coming in.

Ending1: This prevents the dentist from learning the true root of the problem. People are expecting the procedure to be safe and easily accessible. Ending2: Baby teeth have not fallen out to give space for permanent teeth. Tooth has decayed past the point of salvaging. Ending3: There is a deep part of your mouth that has blocked it. There are grit particles in your mouth that is blocking your wisdom teeth. Ending4: A tooth tooth down may hold, but it could eventually abscess or otherwise show infection. It is best for a healthy mouth, as you will have poor dental hygiene at home.

Answer format: ending1/ending2/ending3/ending4