Acquired tooth disorders- Ch. 3 Flashcards by Shauniell Frazier Dearing

Caries are how many times more common than asthma?

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caries are how many times more common than hay fever

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what is the number 1 chronic childhood illness?

caries

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what is the most common reason a kid misses school?

toothache

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what is the caries prevalence in kids under age 4?

38-49%

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Enamel erosion can occur from intrinsic erosion. What causes intrinsic erosion?

gastric acid and acid regurgitations due to medical or physiological issues

**anorexia, acid reflux, bulemia

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when looking intraorally, what gives the indication of bulimia?

Lingual surfaces are eroded

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What is extrinsic erosion?

erosion that occurs when dietary acids contribute to the mouth’s being in a very acidic state

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dietary acid can come from what?

. sugar, diet sodas, fruit drinks, carbonated drinks, energy drinks, etc

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at what pH level does enamel begin to erode?

5.5

**soda has average ph of 2.5

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when enamel wear down, 4 what things can occur?

1- teeth become discolored because you can see dentin
2- edges of front teeth look transparent
3- tooth sensitivity
4- restorations will chip and fall out, especially in primary teeth

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what is external root resorption?

the breakdown or destruction and subsequent loss of the root structure of a tooth.

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what causes external root resorption?

living body cells attacking part of the tooth

*happens in both perm. and primary teeth

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What results from pressure on the root surface. It can be from trauma, ectopic teeth erupting in the path of the root, chronic inflammation. Most common cause is Orthodontics!

Root resorption of secondary teeth

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What is Ectopic root resorption

Whenever the crown of one tooth, comes close or in contact with the root of another tooth

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what is internal root resorption?

root and dentin resorb within root canals

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what cause internal root resorption?

trauma, and sometimes unknown etiology

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How can a dentist cause internal root resorption?

the pulp can react to materials and methods used during pulpotomy

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is a primary tooth more likely to move within the bone or fracture?

move within bone because the surrounding bone isn’t as thick as it is with permanent teeth

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what are the 6 soft tissue problems listed in the lecture?

1-Acute &amp; Chronic Alveolar Abscess
2-Cellulitis
3- Gingivitis
4-Periodontal Disease
5-Soft Tissue Trauma
6-Benign &amp; Malignant Lesions

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what is a acute alveolar abscess?

It is a chemical bacterial and mechanical irritation but usually due to bacterial invasion from death of pulp tissue

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what happens when the swelling becomes extensive?

it results into cellulitis and the patients facial appearance changes

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what is cellulitis?

diffuse infection of the soft tissues

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does cellulitis occur more in adults or kids

younger children

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what causes cellulitis?

primary or permanent pulpal necrosis

clinically how is cellulitis characterized?

by considerable swelling of face or neck due to collateral edema and a spreading fascial infection

is cellulitis painful?

yes. May have difficulty sleeping or eating

what results from long standing, low grade infection of the periradicular bone?

chronic alveolar abscess

is chronic alveolar abscess painful?

No. generally no obvious signs or sypmptoms

Gingivitis

bacteria in plaque...easy bleeds...no bone loss

what percentage of americans have periodontal disease?

75%

the benign lesions Papilloma and Verruca vulgaris are described how?

Firm; non-tender; fixed to the surface; rough or cauliflower surface; pale

leukemias and brain cancers are responsible for what percentage of childhood cancer?

more than 50%

leukemias are responsible for what percentage of childhood cancers?

33.3333333%

is an odontoma a neoplasm or harmatoma?

harmatoma

what is an odontoma composed of?

mature | Enamel, dentin, and pulp tissue

what is the most common odontogenic tumor?

odontoma

what do odontomas interfere with?

eruption of perm teeth

when do odontomas occur?

2nd decade of life

How do compound and complex odontomas differ?

compound have denticles (tooth-like structures).

where do compound odontomas most commonly occur?

max. canine

where do complex odontomas usually occur?

posterior mandible

how do you treat an odontoma?

excision

what is gemination?

Attempted division of a single tooth germ, appears as a bifid crown on a single root.

what is fusion?

Represents the union of two independently developing primary or permanent teeth

will fusion or gemination have separate pulp chambers and canal?

fusion

what is concrescence?

fusion of teeth involving ONLY cementum

3 things about dens invaginatus

1-most common in maxillary perm. lateral incisor 2-Common pulp necrosis and abscess 3-cover with sealant or restoration

3 things about charubism

1- autosomal dominant and reduced penetrance in females 2- multilocular (soap bubble) 3-teeth exfoliate early

what can cause enamel hypoplasia?

1- defecient in vit. A, C, D, calcium, phosphorus

if you have a cleft lip or palate, what percent of people have maxillary primary anterior teeth that had one or more teeth with hypoplasia?

66% 92% with permanent

what is molar-incisor hypomineralization?

Interference with dental development at birth, or while the enamel of the permanent first molars and permanent incisors is forming may result in a qualitative effect on the mineralization of one to four of the permanent first molars with or without involvement of maxillary and mandibular permanent incisors

T/F dental fluorosis is a type of hypoplasia?

True

what are pre-eruptive caries?

defect in crowns of teeth that have not yet erupted. *restore once erupted

what is taurodontism

the body of the tooth is enlarged at the expense of the roots. Also has huge pulp chambers

3 things about Dentinogensis Imperfecta Type I

1-primary dentition more severly effected 2- if osteogenisis imperfecta then you also have fragile bones, blue sclera, deaf, triagular scull 3-roots are taper or ribbon like

3 things about Dentinogenesis Imperfecta Type II-AD

1-most common inheratied defect in man 1:8000 2-pretty much no roots, so a lot of treatments are more complicated 3-implants are possible

Dentinogenesis Imperfecta type 3

1-branywine type 2-bell shaped appearance 3- shell tooth appearance on xray

dentin displasia type 1

radicular dentin dysplasia. Both primary and permanent teeth are affected. Autosomal-dominant trait. Root canal and pulp chambers are absent except for chevron-shaped remnant in the crown. Color is either normal or slightly opalescent or blue brown.

dentin dysplasia type 2

coronal dentin dysplasia. Autosomal-dominant trait, Primary dentition appears opalescent with obliterated pulp chambers. Permanent dentition has normal color with thistle tube pulp configuration with pulp stones.

what type of amelogenisis imperfecta is most common?

hypocalcified *60% have open bite

hypoplastic amerogenisis imperfecta

- Hard thin enamel, small teeth, occasionally tapered | - Possible systemic causes, associated with many different syndromes i.e. Down syndrome, Treacher Collins,

HYPOMATURATION Amelogensis Imperfecta

Normal enamel thickness but with low radiodensity and quite soft *flakes away

anodontia

no teeth

hypodontia

fewer than 6 teeth *not including 3rd molars

oligodontia

missing more than 6 teeth *downs syndrome and ectodermal dysplasia

hypodontia and palatally displaced canines:

Impacted or palatally displaced canines occur in 85% of unerupted canines.

in ectodermal dysplasia what teeth are commonly missing?

- Mand. Incisors and premolars | - Max. premolars

in ectodermal dysplasia what teeth are commonly present?

- Max. central incisors - Max canines - Max. and mand. first molars

what 3 things can intrinsically discolor a tooth?

1-blood borne pigment 2-blood decomposition of pulp from trauma 3- ZOE and composite

what do diseases can discolor a tooth?

1- Cystic Fibrosis | 2-Hyperbilirubinemia

``` Other terms we learned in oral path: 1-macroglossia 2-Ankyloglossia 3-Fissured tongue & Geographic tongue 4-Coated Tongue 5-Black Hairy Tongue 6-Maxillary Labial Frenum 7-Frenectomy 8-Tongue Piercing ```

You likely already know about these things. Refer to lecture slides for review