Acquired, symmetric hyper pigmentation of the sun exposed skin of the face & neck which is strongly associated with pregnancy & use of oral contraceptives is called as_______________? A. Melanoma B. Cafe-au-lait-spots C. FreckleD. Melasma

k’s disease is due to_______________? A. Toxicity of silverB. Toxicity of Mercury C. Toxicity of lead D. Toxicity of Tetracycline

Cafe-au-lait spots on the skin are characteristic of____________? A. Addision’s disease B. Peutz-Jeghers syndormeC. Von recklinghausen disease D. Hyper pituitarism

Green discoloration of teeth is seen in_______________? A. Tetracycline therapy Fluorosis B. FluorosisC. Erythroblastosis fetalis D. None of the above

In peutz-Jeghers syndrome, the oral lesions are_____________? A. Ulcerations of oral mucosa B. Sebaceous glands of oral mucosa C. Silver pigmentation of oral mucosaD. None of the above

A patient showing brownish pigmentation and with normal laboratory findings may be suffering from______________? A. Addison’s disease B. fibrous dysplasiaC. Neuro fibromatosis D. None of the above

Green stains which occur frequently in children are due to_________________? A. Enamel deficiency B. Dentin deficiency C. Material albaD. Chromogenic bacteria

Disease which increase oral melanin pigmentation_______________? A. addison’s disease B. Hyperthyroidsim C. Nephritis D. All of the above

The most common intraoral location for a pigmented nevi is the_______________? A. Hard palate B. Soft palate C. Buccal mucosa D. Floor of mouth

Melanin pigmentation in pregnancy is known as______________? A. Melasma B. Melanoma C. Epulis D. Melanosis