1. Most common impacted anterior tooth--- maxillary canine
2. Most common supernumerary tooth—mesiodens
3. Most common ectopically erupted tooth—maxillary permanent first molar
4. Most common malignancy of oral cavity—squamous cell carcinoma
5. Most common benign tumour of oral cavity—fibroma
6. Most common retained tooth – primary mandibular second molar
7. Most common recurring cyst—odontogenic keratocyst
8. Most common cyst in oral cavity—periapical cyst
9. Most common lichen planus- reticular lichen planus.
10. Most common dermatosis to affect oral cavity- lichen planus
11. Most common chemical burn in oral cavity –aspirin burn
12. Most common topical fluoride in adults – stannous fluoride
13. Most common topical fluoride in children—1.23 APF gel.
14. Most common burshing technique-scrub technique
15. Most common developments cyst-nasopalatine cyst
16. Most common complication of GA (op)-nausea
17. Most common used drug for petitmal epilepsy-ethosuximide
18. Most common used drug for grand mal-phenytoil
19. Most common drug used for temporal epilepsy- carbomezepine
20. Most common treatment for cyst – enucleation
21. Most common used clasp-simple circlet clasp
22. Most common used face bow in fpd- kinematic
23. Most common complication of RA involves TMJ-fibrous ankylosis
24. Most common salivary malignancy in children –mucoepidermoid carcinoma.
25. Most common salivary malignancy in palate area-ACC
26. Most common type of haemophilia--- haemophilia A
27. Most common type of gingivitis in children--- eruption gingivitis
28. Most common type of cerebral palsy is –athetoid/ spastic.
29. Most common nerve involved in C sinus thrombosis – abducent nerve
30. Most common type of impaction ---mesoangular
31. Most common benign epithelial tumour---- papilloma
32. Most common complication of surgical extraction of lower third molar—loss of blood clot
33. Most common used instrument grasp—pen grasp
34. Most common susceptible tooth for caries—mandibular first molar
35. Most common contrast media - iodine in oil
36. Most common cause of light radiographs — exhausted developer
37. Most common cause of failure of RCT— incomplete obturation
38. Most common isolated yeast strain from RCT— Candida
39. Most common bacteria found in root canals --- gram positive
40. Most common part of oral cavity affected by L planus –buccal mucosa.
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