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38 Cards in this Set
- Front
- Back
Name three types of disorders. |
*Developmental *Inherited *Congenital |
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The primitive oral cavity is called? |
Stomodeum |
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The maxillary process forms what? |
*upper cheeks *lateral upper lip *portion of the palate |
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The mandibular process forms what? |
*Lower cheeks *Mandible *Portion of the tongue |
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Tooth development is called? |
Odontogenesis |
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Name the three parts of the tooth germ. |
*Enamel organ (ameloblasts) *Dental papilla (Odontoblasts) *Dental sac or follicle (from mesenchyme) |
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What proliferates to form the root? |
Hertwig's epithelial root sheath |
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Fusion of the lingual frenum to the floor of the mouth. |
Ankloglossia |
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Found in the corners of the mouth. |
Commissural lip pits |
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Thyroid tissue found on the midline of the tongue. |
Lingual thyroid nodule |
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Found around the crown of an unerupted tooth. |
Dentigerous (follicular cyst) |
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Found around the crown of an erupting tooth. |
Eruption cyst |
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Found in the place of a tooth. |
Primordial cyst |
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Found in the mandibular cuspid-premolar soft tissue area. |
Gingival cyst |
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Found between the maxillary central incisors and is heart shaped. |
Nasopalatine cyst |
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Found between the maxillary lateral and cuspid and is pear shaped. |
Globulomaxillary cyst |
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A soft tissue cyst located in the maxillary canine and floor of the nose area. |
Nasolabial cyst |
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Located along the thyroglossal tract to the thyroid gland. |
Thyroglossal duct cyst |
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A developmental depression in the mandible. |
Static (stafne) bone cyst |
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Absence of the primary or permanent teeth. |
Anodontia |
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Absence of one or more teeth. |
Hypodontia |
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The most common supernumerary tooth. |
Mesiodens between the max. central incisors |
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The most common microdontia teeth. |
*Peg laterals, max. lateral incisors, *Max third molars |
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A larger than normal tooth |
Macrodontia |
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A single tooth with a bifrid crown. |
Gemination 1 to 2 |
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Union of two adjacent tooth germs |
Fusion 2 to 1 |
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Roots of adjacent teeth are connected by cementum. |
Concrescence |
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An abnormal curve in a root. |
Dilaceration |
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Short roots with abnormal large pulp chambers |
Taurodontism |
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The enamel organ folds into the crown of the tooth (usually the maxillary lateral). |
Dens in dente |
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The most common places for supernumerary roots. |
*Max. and Man. 3rd molar *Man. premolars and cuspids |
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Name six causes of enamel hypoplasia |
*Malnurisment *Flouride *Syphilus (congential) *Illness *Birth injury & premature birth * Infection |
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What causes the type of enamel hypoplasia that has tiny deep pits and stains? |
Illness or vitamin deficiency |
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What causes the type of enamel hypoplasia that has a mottled discoloration ranging from chalky white to brown-black. |
Flouride ingestion |
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What causes enamel hypocalcification? |
Trauma to enamel during maturation phase |
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What antibiotic can cause endogenous staining of teeth? |
Tetracycline |
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What are the most common teeth to be impacted? |
*Mand. 3rd molars *Max cuspids |
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When the primary tooth prevents the eruption of the permanent tooth this is called? |
Ankylosis |