Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Axial pulpal line angles?
|
never want to be sharp, should be naturally rounded.
|
|
|
What happens if you don't have extension for prevention?
|
You will get 2ndary caries.
|
|
|
Wha thappens if you don't have a 90 degrees cavo surface angle?
|
You will have the amalgam breaking under function in the future.
|
|
|
What happens if you don't plane the margins?
|
this will break down and you get 2ndary caries
|
|
|
Over cutting the tooth causes?
|
Weakening the tooth. The more healthy in tact tooth structure you have, the more likely it is to last longer.
|
|
|
Leaving soft dentin/ caries consequences?
|
1) caries can continue to spread under restoration
2) amalgam restoration is built on softer material, so it will fall apart. |
|
|
Shallow pulpal floor?
|
amalgam will break if it doesn't have enough thickness
|
|
|
Do you need to place a wedge on the lingual or buccal surface if you have caries there?
|
No, all proximal ginigval margins need to be wedged, not buccal or lingual.
|
|
|
What are some common insertion problems?
|
1. open contact - not fixable. Must be in the correct way.
2. gingival Flash/overhang- easier to remove if its a flash. overhang is not so easy to remove. 3. non-gingival flash - easier to remove. not easy to remove gingival flash. 4. hyper-occlusion - always check MIP, and lateral contacts 5. non-confluence 6. weird anatomy - need to know normal anatomy of the tooth 7. undercondensation |
