Regressive alteration iii/ dental courses
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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.for more details please visit www.indiandentalacademy.com
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Regressive alteration iii/ dental courses
- 1. REGRESSIVE ALTERATIONS INDIAN DENTAL ACADEMY Leader in continuing Dental Education www.indiandentalacademy.com
- 2. LEARNING OBJECTIVES At the end of the lecture student shouldbe able to: -Describe alterations in the pulp like , calcification, fibrosis, resorption. –Describe alterations in the cementum like Hypercementosis & Cementicles. www.indiandentalacademy.com
- 3. Alterations in Pulp • Pulp Calcifications • Pulp fibrosis www.indiandentalacademy.com
- 4. Pulp Calcifications Denticles Diffuse Calcifications •True •False •Free •Attached •Embedded www.indiandentalacademy.com
- 5. Local metabolic dysfunction Hyalinisation of injured cells Fibrosis Mineralisation/ Nidus formation Pulp Stone Vascular damage (Thrombosis) Vessel wall damage Trauma www.indiandentalacademy.com
- 6. TOOTH RESORPTION EXTERNAL • Periapical inflammation • Reimplantation of teeth • Tumors & cysts • Excessive mechanical & occlusal forces • Impaction • Idiopathic INTERNAL • Idiopathic www.indiandentalacademy.com
- 13. HYPERCEMENTOSIS • Deposition of excessive amounts of sec cementum on root surfaces • Etio: 1. accelarated elongation of tooth (absence of antagonists) 2. inflammation 3. tooth repair 4. osteitis deformans/ Paget’s ds 5. unknown www.indiandentalacademy.com
- 14. • R/G: thickening & apparent blunting of roots • H/P: sec or cellular cementum deposited directly over typically thin layer of primary acellular cementum. Also called as osteocementum: cellular nature, resemblance to bone. Typically arranged in concentric layers around the roots, frequently shows resting lines • T/t: extraction not indicated www.indiandentalacademy.com
- 16. CEMENTICLES • Small foci of calcified tissue, not necessarily true cementum, which lie free in PDL www.indiandentalacademy.com
- 17. Summary • alterations in the pulp like , calcification, fibrosis, resorption • alterations in the cementum like Hypercementosis & Cementicles. www.indiandentalacademy.com
- 18. BIBLIOGRAPHY Text book of oral pathology Shafer's, 5 & 6th edition Color Atlas of Oral Diseases Cawson, R. 2nd edition Oral and Maxillofacial Pathology Neville, Brad W. 2nd Lucas’s Pathology Of Tumor’s of the Oral Tissues Cawson, R. A., Bennie, W. H 5th edition www.indiandentalacademy.com