Understand the 4 histological zones of enamel caries—translucent zone, dark zone, body of the lesion, and surface zone—explained with an easy diagram. A high-yield pathology topic for NEET MDS and dental exams.
Perfect for NEET MDS, NBDE, INBDE & Dental School Exams
TOPIC: SJÖGREN SYNDROME 🔹 Definition: Chronic systemic autoimmune disease affecting salivary and lacrimal glands, leading to: Xerostomia (dry mouth) Xerophthalmia (dry eyes) → aka Keratoconjunctivitis sicca 🔸 Types: Primary: Only sicca symptoms; no other autoimmune disease Secondary: Sicca + associated autoimmune disease (commonly RA, SLE)
REPARATIVE DENTIN 📌 QUICK NOTES: Reparative dentin, also known as tertiary dentin, is formed in response to external stimuli such as trauma, caries, attrition, or dental procedures. It is produced by odontoblasts that survive the injury or by newly differentiated odontoblast-like cells.
OSTEOCLASTS: Osteoclasts are the cells which resorb the bone. Osteoclasts are derived from circulating monocytes. They are large giant cells with multiple nuclei. These cells occupy irregular resorption bays called Howship’s lacunae. ➡️ Histology of Osteoclasts Osteoclasts are large, multinucleated cells responsible for bone resorption. They derived from hematopoietic stem cells of the monocyte-macrophage lineage. […]
DENTAL ANATOMY, EMBRYOLOGY AND ORAL HISTOLOGY 🔎 Long Essay Q. Write an essay about tooth development. Add a note on histological and morphological differentiation of odontogenesis. Ans. 📌 Tooth Development (Odontogenesis) 👉 Tooth development, also known as odontogenesis, is a complex, highly regulated process that begins early in embryonic life and continues through early childhood. […]
DENTAL ANATOMY, EMBRYOLOGY AND ORAL HISTOLOGY 🔍 LONG ANSWERS: Q: Classify oral mucus membrane. Write in detail about histology of gingiva. (15marks) Ans. 💡Classification of Oral Mucous Membrane The oral mucosa lines the inside of the oral cavity and is classified into three main types based on function and structure: 1. Masticatory Mucosa: Found in areas […]
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