Biologic Principles

Question 1

Concerns in biological principles

Answer 1

Preservation of periodontium
Conservation of tooth structure
Protection of tmj and muscles
Cleansable arws of cfl or margin
Avoidance of over contoured prep
Harmonious occlusal
Protection of teeth against fracture

Question 2

Not to damages gingiva

Answer 2

Preservation or periodont.

Question 3

Correct reduction of tooth

Answer 3

Conservation of tooth structure

Question 4

Removal of any premature contacts

Answer 4

Protection of tmj and muscle

Question 5

Should be self cleansing

Answer 5

Cleansable area of cfl or margin

Question 6

Avoid under reduction prep.

Answer 6

Avoidance of over contoured prep

Question 7

Correct reduction of occlusal surface

Answer 7

Harmonious occlusion

Question 8

Rounding of all sharp line and point angles

Answer 8

Protection of teeth agains fracture

Question 9

Situation that violates

Answer 9

Faulty tooth prep
Wrong gingiva retraction
Improper fitting of tempr. Crown
Inadequate removal of caries
Chemical irritant
Incorrect final restoration
Non removal of excess cement
Acidic cement used in vital teeth

Question 10

Consequences of violation

Answer 10

Recurrent caries
Tooth fracture
Pulpal problem
Periodontal problem
Muscle spasm
Gingival recession
Posy op pain