Re: A couple of questions

no, the burr is used to clean, the curette is used to clean a little more and to scrape the jawbone.  a knife is used to make the small slit.  yes, the infection can spread.  your immune system is fighting it, so it depends on how long your immune system can keep it at bay.  it can affect other teeth or other parts of your jaw, nerves.  some ppl lose hearing.  some ppl get bell's palsey.