just a summary

1. SUMMARY
AAKRITI AGGARWAL
BDS
BATCH 2016

2. Tooth preparation is defined as the
mechanical alteration of a defective,injured
or diseased tooth such that placement of
restorative material reestablishes normal
form(and therefore function) including
esthetic corrections,where indicated .

3.  Class 1-prep. on occlusal surfaces of
molars,occlusal two third of facial and
lingual surfaces of molars,lingual
surfaces of maxillary incisor
 Class 2-prep. On proximal surface of
posterior teeth
 Class 3-prep. On proximal surface of
anterior teeth that do not involve incisal
edge

4.  Class 4-prep. On proximal surface on
anterior teeth that involve incisal edge
 Class 5-prep. In gingival third of facial
and lingual surfaces of all teeth
 Class 6-prep. On incisal edges of
anterior teeth or occlusal cusp tips of
posterior teeth

5. Step 1- initial depth and outline form
step 2 – primary resistance form
Step 3 – primary retention form
Step 4 –convenience form

6. Step 5 –removal of defective restorative
material and/or soft dentin
Step 6 – pulp protection
Step 7 – secondary resistance and retention
forms
Step 8 – external wall finishing
Step 9 – final procedues- debridement and
inspection