PPT-DENTIN STRUCTURE The dentin provides the bulk and general form of the tooth and is characterized

Physically and chemically the dentin closely resembles bone The main morphologic difference between bone and dentin is that some of the osteoblasts exist on the surface of bone and when one of . Dr . Rakesh. Kumar . Yadav. INTRODUCTION. Most of the teeth can be restored with amalgam and composite but if large crown portion lost due to caries or some other reasons, the remaining tooth structure is decrease and difficult to obtained resistance and retention form so prepare dentine lock and slot but when these retention features are insufficient to provide desired retention then pin supported restorations are used. . Department of Pediatric & Preventive Dentistry. Presented By: . Rahul Mishra,. Junior Resident-I,. UP Dental College & Research Centre,. Lucknow.. Dentin. – . Composition. , . Formation. , . and. . Structures. Dentinogenesis. O. rigin of the dentin. Dentin is formed by cells called odontoblasts that defferentiated from ectomesenchymal cells of the dental papilla following an organizing influence that emanents from the inner dental epithelium.. 2008;36:536–541. Before 2004 :. Apexification. :. Apexification. has proven to be highly predictable . increased susceptibility to cervical fracture . The . artificial. apical barrier technique . . Pearls. Mastering The Art and Science of . Esthetic . Dentistry. . Dr. Steven J. Hill . BSc. , DMD, AAACD.. EP#1: Bondable . Dentin. Esthetic. . Pearls. Problem: Patient presents with a broken veneer. . Presented by: Dr. Reza . Hatam. Dental pulp as a connective tissue:. . How respond to irritants? . What makes it prone to degeneration?. Unique environment of dental pulp. Unyielding walls of dentin. . . . CONTENTS. Introduction . Developmental disturbances in number of teeth. Developmental disturbances in size of teeth. Aung. . Oo. DEN . 1114 . D218. What is dentin hypersensitivity?. A transient, sharp pain arising from exposed dentin in response to a . stimulus. Pain . – short in duration, very mild to very intense.. Determines the shape of the crown.. Physically & chemically the dentin closely resembles the bone.. The main morphologic . difference between bone & dentin. is that some of the osteoblasts that form bone marrow enclosed within its matrix substance as osteocytes, whereas the dentin contains only the processes of the cells that form it.. for Tri-County SMILES. Bill Maas. April 2, 2020. Supplemented with slides from . Jeremy Horst, Elevate Oral Care Webinar, March 26, 2020. “The actual depth of penetration of a carious lesion is greater than it appears on the radiograph.”. 1 Abnomalitiesof teethEnvironmental alterationsDevelopmental alterations Effects on tooth structure developmentLocalizedPostdevelopmentalstructure lossDiscoloration of teethes of eruption Local factor The cervical portion of the enamel organ gives rise to the epithelial root sheath of . Hertwig. . The . Hertwig’s. epithelial root sheath (HERS) outlines the future root and is thus responsible for the shape, length, size, and number of roots.. . kumar. ,. Dept of Conservative . Dentistry&Endodontics. 8- 11- 2014. The clinical form of cavity preparation. The principles of modern cavity preparation were first defined in 1896 by Dr. G.V. Black, a man considered by many to be the "father of modern restorative dentistry". When his original sequence of cavity preparation was described, "extension for prevention" of recurrent decay was one of the most important considerations of cavity design. . AND CLASS I CAVITY PREPARATION. Presented By: . Prakash. . Subedi. Cavity preparation is the mechanical alternation of defective, injured or diseased tooth in order to best receive a restorative material that will reestablish a healthy state for the tooth including esthetic correction when indicated, along with normal form and function. .