Oral Pathology

Developmental Disturbances in Teeth

Developmental disturbances means an abnormality where the pathology starts in the embryonic stage of human life, before the formation of the dentition.

Developmental disturbances in teeth are of 5 types based on the feature of the tooth they affect:

  • Size of Teeth
  • Shape of Teeth
  • Number of Teeth
  • Structure of Teeth
  • Growth (Eruption) of Teeth

Here i will just give the overview on what the abnormality is called which will be discussed in detail in the upcoming posts.

Size Of Teeth:

  1. Microdontia
  2. Macrodontia

Shape Of Teeth:

  1. Germination
  2. Fusion
  3. Concrescence
  4. Di laceration
  5. Talon cusp
  6. Dens in Dente
  7. Dens Evaginatus
  8. Taurodontism
  9. Supernumerary Roots

Number Of Teeth:

  1. Anodontia
  2. Supernumerary Teeth
  3. Pre-Decidious Teeth
  4. Post-Permanent Teeth

Structure Of Teeth:

  1. Amelogenesis Imperfecta
  2. Environmental Enamel Hypoplasia
  3. Dentinogenesis Imperfecta
  4. Dentin Dysplasia
  5. Regional Odontodysplasia
  6. Dentin Hypocalcification

Growth (or) Eruption Of Teeth:

  1. Premature Eruption
  2. Delayed Eruption
  3. Eruption Sequestrum
  4. Multiple Unerupted Teeth
  5. Embedded and Impacted Teeth
  6. Ankyolosed and Decidious Teeth.


  1. thank you for this nice website
    nd we wish to learn from you much here in U.OF.K IN SUDAN
    i sk to forgive me for my poor laguage.

  2. Student from shehu idris college of health sciences and technology kaduna nigeria…………..Thanks alot for answer may God bless you more than you think.said {amen}

  3. Aslm.As a student of dental therapy SICHST Kaduna Nigeria I really benefitted from this article thanx U so much.

  4. Thanks very much for your share;as student in UR-CMHS in school of Dentistry I am going to exploit more and gain more from this;by avoiding confusion i have had before.Blessings!!!!!!

  5. School of Health Daura, katsina state Nigeria.
    Alhamd-lillah for this eloquent & intresting article. I relly benefit alot from it.
    More greese to ur elbow.

Leave a Reply

Your email address will not be published. Required fields are marked *