Common Problems in Dental Film Processing and Development

Problem	Causes
Light Radiographs	(i) Processing errors  Under development (temperature too low, time too short)   Depleted developer solution   Excessive fixation  ii)  Under Exposure  Insufficient milliamperaqe   Insufficient kVp   Insufficient time   Film source distance too great   Film packet reversed in mouth
Dark Radiographs	i) Processing errors Over development (temperature too high, time too long)  Accidental exposure to light  Improper safe lighting  Developer concentration too high  ii) Over exposure  Excessive milliamperage   Excessive kVp   Excessive time   Film source distance too short
Insufficient Contrast	Under development  Under exposure  Excessive kVp  Excessive film fog
Film Fog	Improper safe lighting  Light leaks  Over development  Contaminated solutions  Deteriorated film

Differential Diagnosis in Dentistry Part 2

24 . Centrifugal growth pattern of bone growth is seen in:

• Central Ossifying Fibroma
• Central Cementifying Fibroma
• Central Cemento-ossifying Fibroma

General Medicine and Allied Subjects - Annual Exam BDS 3rd year - 9th August 2017 BPKIHS

Group 'A'

General Medicine
1. List any four differences between bleeding disorders and clotting disorders. List any four causes of thrombocytopenia.  (4+1)

2. Write about the management of a newly diagnosed sputum culture positive case of Tuberculosis. (5)

Differential Diagnosis in Dentistry Part 1

1 . Intra-epithelial bulla are seen in:

• Herpes Simplex
• Herpes Zoster
• Chicken Pox
• Pemphigus
• Familial Benign Pemphigus (Hailey - Hailey Disease )
• Epidermolysis bullosa - dystrophic recessive form
• Oral lesions of Erythema Multiforme