1 / 55

DENTAL ANOMALIES

DENTAL ANOMALIES. Anomaly- defined as something that is noticeably different or deviates from the norm. Dental anomalies. Are deviations of dental tissue origin— Dental tissues are enamel, dentin or cementum. These anomalies can result from:. Intrinsic factors Extrinsic factors.

achrist
Download Presentation

DENTAL ANOMALIES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DENTAL ANOMALIES Anomaly- defined as something that is noticeably different or deviates from the norm.

  2. Dental anomalies • Are deviations of dental tissue origin— • Dental tissues are enamel, dentin or cementum

  3. These anomalies can result from: • Intrinsic factors • Extrinsic factors

  4. Intrinsic factors • Result of heredity, metabolic dysfunction, or mutations

  5. Extrinsic factors • Result of physical or chemical trauma, biologic agents, nutritional deficiencies, stress, habits or environmental conditions.

  6. Hereditary • Congenital—condition that occurs at or before birth • Familial tendency- if a condition exists due to evidence of an inherited tendency • Developmental anomaly- a condition that results during the formation and development of a dental structure.

  7. Classification of Dental Anomalies • Macrodontia-teeth are too large • Microdontia- teeth are too small • Hyperdontia- extra teeth • Anodontia- too few teeth • Total anodontia- no teeth are present at all • Partial anodontia- less than the normal number of teeth are present.

  8. Most common missing permanent teeth are: • Third molars • More often the maxillary thirds more than the mandibular thirds.

  9. Second most common missing permanent teeth are: • Maxillary lateral incisors

  10. Third most common missing tooth is: • Mandibular second premolar

  11. Least likely permanent tooth to be missing is: • The canines

  12. Hyperdontia • Supernumerary teeth

  13. Mesiodens- supernumerary teeth in the midline of maxillae.

  14. Maxillary supernumerary teeth outnumber mandibular. • Shapes of supernumerary teeth: • Regular tooth shape- supplemental • Cone-shaped- conical • Very small in size- tubercle

  15. Hyperdontia • Distomolars- are called fourth molars and are located distal to the maxillary third molars.—these occur more frequently in the Maxillary then Mandibular arch. • Paramolar- a supernumerary tooth situated buccally or lingually to a molar.

  16. ANOMALIES IN SHAPE • Odontoma-tumorous anomaly of calcified dental tissues

  17. Dens in Dente • The outer surface of the tooth crown invaginates or turns itself inward before mineralization— • Means, “tooth within a tooth”

  18. Discoloration of enamel due to excessive amount of fluoride.

  19. Notched incisors-result of prenatal syphilis.

  20. Result of congenital syphilis—poorly formed cusps.

More Related