1. TOOTH TO BE EXTRACTED

a. Is the tooth carious?
b. Is it abraded?
c. Does it contain large filling?
d. Does the tooth have artificial crown?
e. Size of the tooth.
f. Formation size and number of roots.
g. Hypercementosis present on the root or roots.
h. Is there on area of condensing or infective osteitis?
i. Condition of roots.
j. Position of roots.
k. Relationship with adjacent teeth, tuberosity and maxillary sinus, mandibular canal.

2. DENTAL RADIOGRAPHS AND EXTRACTION OF TEETH

• Radiographs are an invaluable aid to the surgeon in preventing untoward incident such as fracture of mandible, tearing of floor of the maxillary sinus.
• Intelligent planning of the proposed surgery.
• Small intra-oral filling are necessary to take extra oral views to completely visualize impacted molars.Also necessary to localize position of the teeth.

3. Examination of the supporting hard and soft tissues.

4. Age of the patient: In elder patient teeth is brittle and is more dense and opposite is the case in younger individuals.

5. Previous Extraction