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ORAL PATHOLOGY! > Exam 1- Tooth Dev Disturb > Flashcards

Exam 1- Tooth Dev Disturb Flashcards

(56 cards)

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1
Q

What is the term for a developmentally small tooth?

A

Microdontia

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2
Q

What is the term for a developmentally LARGE tooth? What should we NOT confuse this term with?

A

Macrodontia…don’t confuse with FUSION

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3
Q

Term: Attempted division of tooth germ with incomplete formation of 2 teeth, usually single root.

A

Gemination

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4
Q

Term: Union of two tooth germs by DENTIN. Often with individual roots.

A

Fusion

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5
Q

Gemination: Attempted division of tooth _____ with incomplete formation of 2 teeth, usually how many roots?.

A

germ…usually a SINGLE root

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6
Q

Fusion: Union of two tooth germs by _______. Often with how many roots?

A

DENTIN…usually individual (multiple) roots

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7
Q

Term: Form of fusion where teeth joined by CEMENTUM

A

Concrescence

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8
Q

Concrescence: Form of fusion where teeth joined by ________….WHAT TEETH are most frequently involved?

A

CEMENTUM….Maxillary Molars most frequently involved

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9
Q

Term: Bend or curve in tooth or root…. Possibly due to trauma..Problems with RCT or extraction

A

Dilaceration

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10
Q

Dilaceration: BEND or CURVE in tooth or root….Possibly due to ______…. Problems with WHAT two dental procedures?

A

Trauma….tough with extractions and root canals

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11
Q

What is another term for Dens-in-Dente?

A

Dens invaginatus

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12
Q

What is the etiology of Dens-in-Dente?

A

invagination in enamel organ before calcification

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13
Q

What is the most common tooth to see Dens-in-Dente?

A

maxillary lateral incisions and can be bilateral

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14
Q

Which tooth development anomaly is a sequela of a periapical infection??

A

Dens-in-Dente (dens invaginatus)

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15
Q

How do you treat dens-in-dente?

A

Prophylacticly treat with filling the pit

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16
Q

What is the term for a tooth-like structure in central fossa? Where is this typically found? Can you just take this away with your handpiece?

A

Dens E-vaginatus! mostly found in mandibular PMs…NO don’t just grind away, they can have PULP TISSUE in them…so reduce a little by little.

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17
Q

What are block-shaped teeth with large pulps (“bull-like teeth”)?

A

Taurodontism

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18
Q

Is taurodontism typically found in one or multiple teeth?

A

Yep, can be Either one or multiple teeth

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19
Q

Can taurodontism be isolated or is it associated with syndromes?

A

Yep, it can Either be isolated OR associated with syndromes

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20
Q

BOOM! YOU CAN HELP DIAGNOSE A SYNDROME!!! WHICH SYNDROME IS COMMONLY ASSOCIATED WITH TAURODONTISM???? What % of these patients have taurodontism?

A

Klinefelter’s Syndrome (polyploidy of X chromosome, XXY)…20% have it

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21
Q

What is an excess of enamel at bi or trifurcation of molars at CEJ?

A

an enamel pearl!

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22
Q

Where is an enamel pearl most commonly found? (2)

A

1.At the bi or trifurcation of molars 2.at CEJ

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23
Q

Term: A few or no tooth development

Study These Flashcards
A

Oligo-dontia OR ano-dontia

24
Q

What is the most commonly associated systemic problem with Anodontia?

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A

HEREDITARY ECTODERMAL DYSPLASIA

25
Overall there is an evolutionary trend toward developing a _______ amount of teeth!
fewer
26
What is the official term for extra teeth? Which arch is it more common in? WHERE is the most common, specific location and what is its special name there?
superNumerary teeth....90% of cases in the MAXILLA....Most common location between the maxillary central incisions-named MESIODENS
27
What are the two associated disorders with supernumerary teeth?
1.Gardner's Syndrome (colon cancer) 2.Cleidocranial Dysplasia (no clavicles)
28
What is THE only HEREDITARY disturbance in enamel structure? What are the 3 genetic possibilities?
Amelo-genesis imperfecta....1.AD 2.AR 3.X-linked (all of the phenotypic expressions)
29
How many types of amelogenesis imperfect are there?
12-15 types
30
What are the three clinical signs of Amelogenesis Imperfecta?
1.Hypoplasia 2.Hypocalcificatoin 3.Hypomaturation
31
What are the 3 indications of HEREDITARY amelogenesis imperfecta?
1.Effects ALL teeth 2.BOTH arches 3.Family history
32
What are the 3 indications that amelogenesis imperfecta may have been initiated by environmental factors?
1. only SOME teeth affected 2.only in ONE arch 3.no family history
33
HERE COMES THE BOOM! DIG DEEP-D1 STYLE: What are the 7, yes 7 causes of ENVIRONMENTAL ENAMEL DEFECTS (hypoplasia/hypomineralization)????????
1.RICKETS 2.EX---AN---THE-mat-ous diseases (viral affecting epithelium) 3.Congenital syphilis 4.Turner's Tooth (local infection/trauma) 5.Fluorosis 6.TetraCycline 7.Idiopathic
34
What are the two manifestations of congenital syphilis on the teeth?
1.Hutchinson's incisors 2.Mulberry molars
35
What is the typical threshold of Fluoride in the water for fluorosis to occur? Is the discoloring a product of Fluoride?
threshold = > 1ppm....discoloring is NOT caused by F-, its from other metals (Fe2+)
36
Dominantly inherited genetic defect of dentin independent or with osteogenesis imperfecta
DENTIN-O-GENESIS IMPERFECTA
37
Cool, nerdy extra- Dentin-o-genesis Imperfecta is due to mutation of dentin ______________ DSPP
Si-AL-O-phospho-protein
38
In dentinogenesis imperfecta which arch/how many teeth are affected?
BOTH arches, ALL teeth
39
Which disease is associated with dentinogenesis imperfecta? What are two manifestations?
osteogenesis imperfecta...brittle bones, blue sclera
40
Which abnormality is this describing? grayish to yellowish-brown, translucent, enamel fractures from dentin (lacks scalloping), exposed dentin prone to attrition
dentinogenesis imperfecta
41
Radiographic findings of dentinogenesis imperfecta: Obliteration of _________ ± attrition ± root fractures
pulp chambers and canals (FULL of type I collagen!)
42
What is the treatment strategy for a patent with dentinogenesis imperfecta?
CROWNS to prevent attrition
43
What is the genetic nature of dentinogenesis imperfecta?
Autosomal DOMINANT
44
Autosomal dominant condition characterized by pulpal obliteration with abnormal dentin, defective root formation and tendency for periapical pathology.
DENTINAL DYSPLASIA! (look like resorbing primary teeth, no roots)
45
Which teeth and arches are mostly affected by DENTINAL DYSPLASIA?
All teeth, both dentitions
46
Which abnormality? Radiographic findings: Obliteration of pulp, short underdeveloped roots, periapical radiolucencies
Dentinal Dysplasia
47
Which two tooth anatomical components are affected by Regional OdontoDysplasia? What is the nickname for this condition?
BOTH Enamel AND Dentin....Ghost teeth
48
What is the etiology and region affected by Regional OdontoDysplasia? (what is the most common arch)
Unknown etiology, affects several teeth in ONE region of the jaws....permanent teeth, unerupted in the MAXILLARY arch
49
Which condition is this? Radiographic findings: Anomalous teeth often with very thin shell of enamel and dentin
Regional OdontoDysplasia
50
What are the three types of Disturbances in Eruption?
1.Embedded teeth 2.Impacted teeth 3.Ankylosed teeth
51
What is the nickname for embedded teeth? Its due to a lack of ________ force....if its generalized, look for a systemic cause....LIKE:
Nickname: Pseudo-Ano-Dontia.....lack of eruptive force....LIKE HYPOTHYROIDISM
52
What are teeth unerupted because of mechanical (tooth) obstruction? What are the 2 most common teeth affected by this eruption disturbance?
Impacted teeth...mandiublar 3rd molars and maxillary canines
53
Term: Tooth roots fused to bone, often in primary teeth with underlying succedaneous permanent tooth missing
Ankylosed Teeth
54
Ankylosed teeth: Tooth roots fused to bone, often in _______ teeth with underlying succedaneous permanent tooth missing
primary
55
What is a unique clinical feature of ankylosed teeth?
there is a DISTINCTIVE PERCUSSION
56
What are 2 topics discussed in this deck that are associated with PROMINENT PULP CALCIFICATIONS?
1.Dentin Dysplasia (II) 2.Regional OdontoDysplasia

ORAL PATHOLOGY! (40 decks)

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