Oral pathology-Dr. Flores Flashcards
1
Q
Enviromental alterations of teeth
A
- During tooth developement
- Post developement structure loss
- Discoloration of teeth
- Local distturbances in eruption
2
Q
Eniromnental effects on tooth structure developement
A
- Turner’s Hypoplasia
- Dental Fluorosis
- Antineoplastic therapy
- Syphilitic hypoplasia
3
Q
Turner’s Hypoplasia
A
- Enamel defect in permanent teeth
- Secondary to:
- periapical inflammation
- trauma to deciduous tooth
4
Q
What condition?
A
- Turner’s Hypoplasia
- enamel defect in permanent teeth
- secondary to:
- periapical inflammation
- trauma to decidious teeth
5
Q
Molar-Incisor Hypomineralization
A
- enamel defect of 1 or more permanent 1st molar
- Sensitive
- Difficult to anesthetize
6
Q
What condition?
A
- Molar-Incisor Hypomineralization
- enamel defect of 1 or more permanent 1st molar
- sensitive
- hard to anesthetize
7
Q
Hypoplasia caused by Antineoplastic Therapy
A
- Secondary to:
- Radiation
- Chemo
- Common in <12 y.o.
8
Q
Dental Fluorosis
A
- Hypomaturation of enamel
- increased porosity/pits w/discoloration
- anterior teeth, estheticss
- cariest resistant
- critical period: 2nd and 3rd yr of life
9
Q
Syphilitic Hypoplasia
A
- aka congenital syphilis
- Hutchinson’s incisors
- Straight-Edge screwdrive
- incisal hypoplastic notch
- Mulberry molars
- constricted occlusal table
- Disorganized surface anatomy
- Hutchinson’s incisors
10
Q
Post-Developemental loss of tooth structure
A
- Abrasion
- Erosion
- Attrition
- Abfraction
11
Q
Erosion
A
- 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
Q
What condition?
A
Erosion
13
Q
Abrasion
A
- Mechanical action of external agent
- toothpicks
14
Q
Attrition
A
- Tooth-to tooth contact during occlusion and mastication
15
Q
Abfraction
A
- loss of tooth structure due to occlusal stress
- away from loading point
16
Q
Internal vs External Root resorption
A
- Internal:
- Cells in pulp
- rare
- secondary to pulpal injury
- may result in perforation
- Types:
- inflammatory
- pink tooth of Mummery
- Replacement or metaplastic
- inflammatory
- 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
Q
Enviromental Discolorations of teeth: Extrinsic vs intrinsic
A
- Extrinsic
- Foods
- Drinks
- Gingival hemorrhage
- restoration material
- Medicines
- Intrinsic
- Amelogenesis imperfecta
- Dentinogenesis imperfecta
- Dental Fluorosis
- Erythropoietic Porphyria
- Hyperbilirubinemia
- localized RBC breakdown
- Medicines
18
Q
Discoloration of teeth: Treatments-Extrinsic vs intrinsic
A
- Extrinsic:
- Prophy
- Pumic
- Chemicals
- jets
- Intrinsic:
- Bleaching
- Restoration
19
Q
Congenital Erythropoietic Porphyria
A
- aka Gunther disease
- incresaed synthesis & excretion of porphyrins & precursors
- Red teeth
20
Q
What condition?
A
Congenital Erythropoietic Porphyria
(Gunther DIsease)
21
Q
Local Disturbances associated w/delayed eruption
A
- Ankylosis of deciduous tooth
22
Q
Anykylosis
A
- stops erupting after emerging
- Unknown pathogenesis
- Loss of PDL space on x-rays
- leads to perio problems
23
Q
What condition?
A
Ankylosis
24
Q
What condition?
A
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)
31
What condition?
Microdontia
32
Macrodontia
* Excludes fusion or gemination
*
33
Gemination
* Partial splitting of tooth bud
* count as one tooth
* Clinically
* enlarged tooth
* normal number
*
34
What condition?
Gemination
35
Fusion
* union of two tooth bud
* single enlarged tooth, seperate canals
* Anterior maxillary usually
36
What condition?
Fusion
37
What condition?
Fusion
38
Gemination vs Fusion: Drawing
39
Concrescence
* 2 teeth joined by cementum
* Maxillary posterior teeth
* 2nd/3rd molars
*
40
What condition?
Concrescence
41
What condition?
Concrescence
42
Dens Evaginatus
* Asians, native americans, Hispanics-Mestizo heritage
* X-ray
* occlusal w/tuberculated appearance
* Complications:
* Fracture
* Dilaceration
* Displacement
* Tilting or rotation of teeth
43
What condition?
Dens Evaginatus
44
Dens Invaginatus
* aka Dens in Dente
* Deep surface invagination
* lined by enamel
* Type 1-3
45
What condition
Dens Invaginatus (dens in Dente)
46
Ectopic Enamel
* Enamel Pearl
* Cervical Enamel Extension
47
48
What condition?
Enamel Pearl
49
What condition?
Cervical enamel Extension
50
Taurodontism
* Enlarged body and pulp chamber of multiroot tooth
* apical displaceent of pulpal floor
* bifurcation of roots
* Classification:
* Hypotaurodontism
* mild
* Mesotaurodontism
* moderate
* Hypertaurodontism
* severe
51
What condition?
* Taurodontism
52
Hypercementosis
* isolated or multiple
* Adults
* associated with Paget disease
53
What condition?
Hypercementosis
54
What condition?
Hypercementosis
55
What condition?
Dilaceration
56
Amelogenesis Imperfecta
* primary & permanent dentition
* Gene mutation:
* Autosomal dominant
* FAM83H
* diffuse hypocalcification
* localized hypocalcified
* Classification: 4 types/15 subtypes
* type I
* hypoplastic
* type II
* hypomaturation
* Type III
* Hypocalcified
* type IV
* Hypomaturation/hypoplastic
57
Amelogenesis Imperfecta Type I
* Hypoplastic (type I)
* inadequate deposit of enamel
* surface-rough
* open bite
58
Dentinogenesis Imperfecta
* Hereditary developmental defect of dentin without other systemic disorder
* DSPP Gene
* White ppl
*
