Thanks for asking the query,
As you said you had a filling in the molar 10 years back , which is black in colour might be a silver amalgam restoration, if you are uneasy with it and want a tooth coloured restoration you can go for a composite restoration.
Broken filling with incisors need to be replaced,
Visit to your Dentist
and get the checkup done, and if necessary take the x-rays.
Maintain a good oral hygiene
, use antiseptic mouthwash gargles twice daily.
Hope this helps out.