Carcinoma in situ involves-
সঠিক উত্তর
সঠিক উত্তর: Basal layer of epithelium
সঠিক উত্তর
সঠিক উত্তর: Basal layer of epithelium
ভুল বা সঠিক হলে সাথে সাথেই ব্যাখ্যা সহ উত্তর দেখতে পারবেন।
Ideal age of interceptive orthodontics is -
Interceptive orthodontics aims to intercept and correct a developing malocclusion at an early stage, before it becomes fully established. This window corresponds to the mixed dentition period (roughly 6–12 years), when both primary and permanent teeth are present. During this period, problems such as crossbites, crowding, habits (thumb sucking), and arch-length discrepancies can be corrected more easily because the jaws are still growing and teeth are still erupting, making treatment simpler and more effective than after the permanent dentition is fully established.
Reference: Proffit WR, Fields HW, Sarver DM. Contemporary Orthodontics, 6th ed. Chapter on Early Treatment (Interceptive Orthodontics).
মেডিকেল বিষয়ে ১০ টি গুরুত্বপূর্ণ প্রশ্ন
১০ মার্কের MCQ কুইজএই প্রশ্নের বিশেষজ্ঞ বিশ্লেষণ
Carcinoma in situ is defined histologically as severe epithelial dysplasia involving the full thickness of the epithelium, including its basal layer, in which the cells show malignant cytological features but the lesion remains confined above an intact basement membrane, without invasion into the underlying connective tissue. Once malignant cells breach the basement membrane and invade the connective tissue, the lesion is reclassified as invasive (frank) carcinoma.
Reference: Neville BW, Damm DD, Allen CM, Chi AC. Oral and Maxillofacial Pathology, 4th ed. – Epithelial Dysplasia and Carcinoma In Situ.
রেফারেন্স মাত্র
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