Dentin_pulpcomplex     INDIAN DENTAL ACADEMY      Leader in Continuing Dental Education    www.indiandentalacademy.com
Dentin and pulp are embryologically, histologically, andfunctionally the same tissue and therefore are consideredas a comp...
ToothTooth Crown                                             Dentin                                              Pulp  Too...
 Both dentin and pulp have a common origin from the dental papilla.              www.indiandentalacademy.com
Pulp                            Dentin       www.indiandentalacademy.com
Pulp                                   Dentin                        Odontoblast cell layer  www.indiandentalacademy.com
Dentin                                Pulpwww.indiandentalacademy.com
Types of Dentin                                     DentinPrimary physiologic        Secondary physiologic             Ter...
www.indiandentalacademy.com
Types of DentinPrimary dentin: is the dentin formed in a tooth before the completion of the apical   foramen of the root. ...
Odontoblasts and process         Dentin                               PulpOdontoblast process            www.indiandentala...
Dentinal MatrixDentinal matrix                       Hole for dentinal tubules        www.indiandentalacademy.com
Dentinal tubuleswww.indiandentalacademy.com
Dentinal tubuleswww.indiandentalacademy.com
Dentinal tubulesPeritubular dentin                    Intertubular dentin        www.indiandentalacademy.com
Dentinal tubules          Predentinwww.indiandentalacademy.com
Dentinal tubulesPeritubular dentin                     Intertubular dentin         www.indiandentalacademy.com
Odontoblast layer                 Predentin                             Dentinal tubules    www.indiandentalacademy.com
www.indiandentalacademy.com
Dentinal Tubules                                    Coronal dentin                                     Root dentinwww.indi...
Dentinal                      tubuleswww.indiandentalacademy.com
Dentinal                                     tubules       Intraubular       or peritubular       dentinIntertubular denti...
Interglobuler Dentin Dentino Enamel Junction                                          Inter-                              ...
Inter-               globuler               dentinwww.indiandentalacademy.com
Dentin                              Cementum                              Granular layer                              of T...
Primary                                     physiological                                     dentinSecondaryphysiological...
Secondary    physiological    dentin                                PrimaryTertiary                        physiologicalde...
Sclerotic dentin                       Deantal caries         www.indiandentalacademy.com
Dead tracts                              Tertiary                              dentin                              Seconda...
Incremental line of von Ebner         www.indiandentalacademy.com
Enamel                                              DentinLines of                                               Lines ofR...
Neonatal lines in Dentinwww.indiandentalacademy.com
Functions of the Dental Pulp Nutrition: blood supply for pulp and dentin. Sensory: changes in temp., vibration and chemi...
Anatomy of PulpPulp horns or cornua                  Pulp Chamber or coronal                                      pulp, lo...
Lateral or accessory canal www.indiandentalacademy.com
Lateral Canalwww.indiandentalacademy.com
Odontoblastic                                 Predentin  process Cell bodies                                              ...
Microscopic Zones in PulpZones-from outer to inner zone                    DescriptionOdontoblastic layer                 ...
Dentin                            Odontoblasts layerPredentin                                Cell rich zone               ...
Contents of the Pulp   Cells: Odontoblast, Fibroblast, white-blood cells,    Undifferentiated mesenchymal cells, Macropha...
Vascularity and Nerves of the Pulp   The pulp organ is extensively vascular with vessels arising from the    external car...
Nerves and vessels in pulpBlood and vessels enter and exit the dental pulp by way of theapical and accessory foramina. Pul...
Nerves in pulpwww.indiandentalacademy.com
Dental Pulp  Nervewww.indiandentalacademy.com   Blood vessel
Clinically Importance features of the Dental Pulp With age the pulp becomes less cellular. The number of cells  in the de...
www.indiandentalacademy.com
Free True DenticleFree TrueDenticle            www.indiandentalacademy.com
Free True Denticlewww.indiandentalacademy.com
Free True DenticleOdontoblast                                            Dentinal                                         ...
Free False Denticlewww.indiandentalacademy.com
Diffuse Pulp Calcificationwww.indiandentalacademy.com
Dentin Sensitivity: three theories  Nerve   in dentin – the dentin contains nerve endings that respond when it    is stim...
www.indiandentalacademy.com
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Dentin pulp complex /certified fixed orthodontic courses by Indian dental academy

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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.


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Dentin pulp complex /certified fixed orthodontic courses by Indian dental academy

  1. 1. Dentin_pulpcomplex INDIAN DENTAL ACADEMY Leader in Continuing Dental Education www.indiandentalacademy.com
  2. 2. Dentin and pulp are embryologically, histologically, andfunctionally the same tissue and therefore are consideredas a complex www.indiandentalacademy.com
  3. 3. ToothTooth Crown Dentin Pulp Tooth Root www.indiandentalacademy.com
  4. 4.  Both dentin and pulp have a common origin from the dental papilla. www.indiandentalacademy.com
  5. 5. Pulp Dentin www.indiandentalacademy.com
  6. 6. Pulp Dentin Odontoblast cell layer www.indiandentalacademy.com
  7. 7. Dentin Pulpwww.indiandentalacademy.com
  8. 8. Types of Dentin DentinPrimary physiologic Secondary physiologic Tertiary dentin or dentin dentin reparative dentin or reactionary dentin or irregular secondary dentin Mantle Circumpulpal Peritubular Intertubular dentin dentin dentin dentin www.indiandentalacademy.com
  9. 9. www.indiandentalacademy.com
  10. 10. Types of DentinPrimary dentin: is the dentin formed in a tooth before the completion of the apical foramen of the root. Primary dentin is noted for its regular pattern of tubules.Secondary dentin: is the dentin that is formed after the completion of the apical foramen and continues to form throughout the life of the tooth.Peritubular (intratubular) dentin: dentin that creates the wall of the dentinal tubule.Intertubular dentin: dentin found between the tubules.Mantle dentin: the first predentin that forms and matures within the tooth.Circumpulpal dentin: the layer of dentin around the outer pulpal wall. www.indiandentalacademy.com
  11. 11. Odontoblasts and process Dentin PulpOdontoblast process www.indiandentalacademy.com Odontoblast cells
  12. 12. Dentinal MatrixDentinal matrix Hole for dentinal tubules www.indiandentalacademy.com
  13. 13. Dentinal tubuleswww.indiandentalacademy.com
  14. 14. Dentinal tubuleswww.indiandentalacademy.com
  15. 15. Dentinal tubulesPeritubular dentin Intertubular dentin www.indiandentalacademy.com
  16. 16. Dentinal tubules Predentinwww.indiandentalacademy.com
  17. 17. Dentinal tubulesPeritubular dentin Intertubular dentin www.indiandentalacademy.com
  18. 18. Odontoblast layer Predentin Dentinal tubules www.indiandentalacademy.com
  19. 19. www.indiandentalacademy.com
  20. 20. Dentinal Tubules Coronal dentin Root dentinwww.indiandentalacademy.com
  21. 21. Dentinal tubuleswww.indiandentalacademy.com
  22. 22. Dentinal tubules Intraubular or peritubular dentinIntertubular dentin www.indiandentalacademy.com
  23. 23. Interglobuler Dentin Dentino Enamel Junction Inter- globuler dentinDentinalTubules www.indiandentalacademy.com
  24. 24. Inter- globuler dentinwww.indiandentalacademy.com
  25. 25. Dentin Cementum Granular layer of Tomes Hyaline layerwww.indiandentalacademy.com
  26. 26. Primary physiological dentinSecondaryphysiologicaldentin www.indiandentalacademy.com
  27. 27. Secondary physiological dentin PrimaryTertiary physiologicaldentin dentin www.indiandentalacademy.com
  28. 28. Sclerotic dentin Deantal caries www.indiandentalacademy.com
  29. 29. Dead tracts Tertiary dentin Secondary physiological dentin Primary physiological dentinwww.indiandentalacademy.com
  30. 30. Incremental line of von Ebner www.indiandentalacademy.com
  31. 31. Enamel DentinLines of Lines ofRetzius Owen Dentino-enamel Junction www.indiandentalacademy.com
  32. 32. Neonatal lines in Dentinwww.indiandentalacademy.com
  33. 33. Functions of the Dental Pulp Nutrition: blood supply for pulp and dentin. Sensory: changes in temp., vibration and chemical that affect the dentin and pulp. Formative: the pulp involve in the support, maintenance and continued formation of dentin. Defensive: triggering of inflammatory and immune response. Protective: Development and formation of secondary and tertiary dentin which increase the coverage of the pulp. www.indiandentalacademy.com
  34. 34. Anatomy of PulpPulp horns or cornua Pulp Chamber or coronal pulp, located in the crown of the tooth. Root canal or radicular pulp, is the portion of the pulp located in the root area. The apical foramen is the opening from the pulp at the apex of the tooth. Accessory canals or lateral canal, extra canal located on the lateral portions of the root. www.indiandentalacademy.com
  35. 35. Lateral or accessory canal www.indiandentalacademy.com
  36. 36. Lateral Canalwww.indiandentalacademy.com
  37. 37. Odontoblastic Predentin process Cell bodies Odontoblasts Cell-free zone Cell-rich zone www.indiandentalacademy.com
  38. 38. Microscopic Zones in PulpZones-from outer to inner zone DescriptionOdontoblastic layer Lines the outer pulpal wall and consists of the cell bodies of odontoblast. Secondary dentin may form in this area from the apposition of odontoblast.Cell-free zone Fewer cells than odontoblastic layer. Nerve and capillary plexus located hereCell-rich zone Increased density of cells as compared to cell-free zone and also a more extensive vascular systemPulpal-core Located in the center of the pulp chamber, which has many cells and an extensice vascular supply, similar to cell-rich zone www.indiandentalacademy.com
  39. 39. Dentin Odontoblasts layerPredentin Cell rich zone Pulp core Cell free zone www.indiandentalacademy.com
  40. 40. Contents of the Pulp Cells: Odontoblast, Fibroblast, white-blood cells, Undifferentiated mesenchymal cells, Macrophages and Lymphocytes. No fat cell. Fibrous Matrix: Mostly reticular fibres and collagen fibres (Type I and Type III). Ground substance: Act as a medium to transport nutrients to cells and metabolites of the cell to the blood vessels. www.indiandentalacademy.com
  41. 41. Vascularity and Nerves of the Pulp The pulp organ is extensively vascular with vessels arising from the external carotids to the superior or inferior alveolar arteries. It drain by the same vein. Blood flow is more rapid in the pulp than in most area of the body, and the blood pressure is quite high. The walls of the pulpal vessels become very thin as their enter the pulp. Nerves : Several large nerves enter the apical canal of each Molar and Premolar and single ones enter the anterior teeth. This trunks transverse the radicular pulp, proceed to the coronal area and branch peripherally. www.indiandentalacademy.com
  42. 42. Nerves and vessels in pulpBlood and vessels enter and exit the dental pulp by way of theapical and accessory foramina. Pulp is richly innervated; nervesenter the pulp through the apical foramen, along with afferent blood vessels and together form the neuro-vascular bundle. www.indiandentalacademy.com
  43. 43. Nerves in pulpwww.indiandentalacademy.com
  44. 44. Dental Pulp Nervewww.indiandentalacademy.com Blood vessel
  45. 45. Clinically Importance features of the Dental Pulp With age the pulp becomes less cellular. The number of cells in the dental pulp decreases as cell death occurs with age. The volume of the pulp chamber with continued deposition of dentine. In older teeth, the pulp chamber decreases in size; in some cases the pulp chamber can be obliterated. An increase in calcification in the pulp occurs with age. An increase in calcification in the pulp occurs with age. www.indiandentalacademy.com
  46. 46. www.indiandentalacademy.com
  47. 47. Free True DenticleFree TrueDenticle www.indiandentalacademy.com
  48. 48. Free True Denticlewww.indiandentalacademy.com
  49. 49. Free True DenticleOdontoblast Dentinal Tubules Predentin www.indiandentalacademy.com
  50. 50. Free False Denticlewww.indiandentalacademy.com
  51. 51. Diffuse Pulp Calcificationwww.indiandentalacademy.com
  52. 52. Dentin Sensitivity: three theories  Nerve in dentin – the dentin contains nerve endings that respond when it is stimulated . Odontoblastic process – the odontoblasts serve as receptors and are coupled to nerves in the pulp. Fluid movements in the dentinal tubules – the tubular nature of dentin permits fluid movement to occur within the tubule when a stimulus is applied – a movement registered by pulpal free nerve endings close to the dentin. www.indiandentalacademy.com
  53. 53. www.indiandentalacademy.com

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