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17. Cryosurgery can be used effectively in all of the following conditions except:
A. Superficial basal cell carcinoma.
B. Intractable facial pain.
C. Oral squamous cell carcinoma.
D. Viral warts.
E. Some vascular malformations and hemangioma.
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15. Which pharmacological agent is currently considered the first-line treatment and 'best therapeutic modality' for complicated hemangiomas?
A. Bleomycin
B. Systemic Prednisolone
C. Propranolol
D. Interferon a 2A
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14. Which life-threatening complication is characterized by a rapidly growing hemangioma, thrombocytopenia, and consumptive coagulopathy?
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13 . According to the ISSVA classification, what is the primary histological difference between vascular tumors (hemangiomas) and vascular malformations?
A. Tumors involve abnormal vessel dilation, while malformations involve endothelial proliferation.
B. Tumors are always high-flow, while malformations are always low-flow.
C. Tumors are characterized by proliferation of endothelial cells, while malformations are characterized by abnormal dilation without proliferation.
D. Tumors only occur in adults, while malformations are only seen in neonates.
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11.According to the HCL classification for mandibular defects, what does the "H" represent?
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10. Which of the following is a specific complication associated with harvesting a bone graft from the mandibular symphysis?
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9.In the "Two-Phase Theory of Osteogenesis," what is the primary determinant of bone regeneration during Phase I?
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