Oral pathology-Dr. Flores Flashcards Preview

Week 2-D2 > Oral pathology-Dr. Flores > Flashcards

Flashcards in Oral pathology-Dr. Flores Deck (58)
Loading flashcards...
1

Enviromental alterations of teeth

  • During tooth developement
  • Post developement structure loss
  • Discoloration of teeth
  • Local distturbances in eruption

2

Eniromnental effects on tooth structure developement

  • Turner's Hypoplasia
  • Dental Fluorosis
  • Antineoplastic therapy
  • Syphilitic hypoplasia

3

Turner's Hypoplasia

  • Enamel defect in permanent teeth
  • Secondary to:
    • periapical inflammation
    • trauma to deciduous tooth

4

What condition?

  • Turner's Hypoplasia
    • enamel defect in permanent teeth
    • secondary to:
      • periapical inflammation
      • trauma to decidious teeth

5

Molar-Incisor Hypomineralization

  • enamel defect of 1 or more permanent 1st molar
  • Sensitive
  • Difficult to anesthetize

6

What condition?

  • Molar-Incisor Hypomineralization
    • enamel defect of 1 or more permanent 1st molar
    • sensitive 
    • hard to anesthetize

7

Hypoplasia caused by Antineoplastic Therapy

  • Secondary to:
    • Radiation
    • Chemo
  • Common in <12 y.o.

8

Dental Fluorosis

  • Hypomaturation of enamel
  • increased porosity/pits w/discoloration
  • anterior teeth, estheticss
  • cariest resistant
  • critical period: 2nd and 3rd yr of life

9

Syphilitic Hypoplasia

  • aka congenital syphilis
    • Hutchinson's incisors
      • Straight-Edge screwdrive
      • incisal hypoplastic notch
    • Mulberry molars
      • constricted occlusal table
      • Disorganized surface anatomy

10

Post-Developemental loss of tooth structure

  • Abrasion
  • Erosion
  • Attrition
  • Abfraction

11

Erosion

  • caused by nonbacterial  chemical agent
    • energy drinks
  • Dissolution of tooth structure by acid
  • enamel more resistant than dentin
  • Patterns:
    • maxillary facial-dietary
    • Maxillary palatal-Gastric "Perimolysis"
    • Anterior incisal-enviromental

12

What condition?

Erosion

13

Abrasion

  • Mechanical action of external agent
    • toothpicks

14

Attrition

  • Tooth-to tooth contact during occlusion and mastication

15

Abfraction

  • loss of tooth structure due to occlusal stress
    • away from loading point

16

Internal vs External Root resorption

  • Internal:
    • Cells in pulp
    • rare
    • secondary to pulpal injury
    • may result in perforation
    • Types:
      • inflammatory 
        • pink tooth of Mummery
      • Replacement or metaplastic
    • Tx: remove associated tissue
  • External:
    • cells in PDL
    • common
    • "Moth-eaten" irregular defect
    • normal pulp canal
    • types of cervical resorption:
      • invasive cervical
      • multiple idopathic

17

Enviromental Discolorations of teeth: Extrinsic vs intrinsic

  • Extrinsic
    • Foods
    • Drinks
    • Gingival hemorrhage
    • restoration material
    • Medicines
  • Intrinsic
    • Amelogenesis imperfecta
    • Dentinogenesis imperfecta
    • Dental Fluorosis
    • Erythropoietic Porphyria
    • Hyperbilirubinemia
    • localized RBC breakdown
    • Medicines

18

Discoloration of teeth: Treatments-Extrinsic vs intrinsic

  • Extrinsic:
    • Prophy
    • Pumic
    • Chemicals
    • jets
  • Intrinsic:
    • Bleaching
    • Restoration

19

Congenital Erythropoietic Porphyria

  • aka Gunther disease
  • incresaed synthesis & excretion of porphyrins & precursors
  • Red teeth

20

What condition?

Congenital Erythropoietic Porphyria

(Gunther DIsease)

21

Local Disturbances associated w/delayed eruption

  • Ankylosis of deciduous tooth

22

Anykylosis

  • stops erupting after emerging
  • Unknown pathogenesis
  • Loss of PDL space on x-rays
    • leads to perio problems

23

What condition?

Ankylosis

24

What condition?

Ankylosis

25

Developement alterations in the number of teeth:

  • Hypodontia
  • Hyperdontia
    • Mesiodens
    • paramolar
    • Natal teeth

26

Hypodontia

  • Female preference
  • associated with
    • ectodermal dysplasia
    • microcontia

27

What condition?

Hypodontia

28

What condition?

Hypodontia

29

Hyperdontia

  • Supernumery teeth
    • mostly unilateral
  • failure of eruption
    • 75% anterior maxilary
  • may cause delay in eruption
  • Mesiodens
    • maxillary incisor region
  • Distomolar/Distodens
    • 4th molar
  • Paramolar
    • posterior supernumery tooth
  • Natal/Paranatal teeth
    • 85% mandibular incisors
    • 11% max incisors
    • 4% posterior teeth
  • Riga-Fede Disease
    • Trauma ulcer of adjacent soft tissue

30

Microdontia

  • Genetic and enviromental influence
  • Females
  • Types:
    • Generalized microdontia
      • Down Syndrome
      • Pituitary Dwarfism
    • Isolated Microdontia
      • Common
      • Peg Lateral (max)