Anatomy Midterm Flashcards by Kyri Fawber

Which permanent dentition will replace primary 1st molar

First premolar

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What type of tooth is absent in primary dentition

Premolars

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Permanent dentition begins at 12 when…

Last primary is lost

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Line angle

2 angles meet

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Height of contour

Widest

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Point angle

3 angles meet

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Contact area

2 teeth touch

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What adult teeth nonsuccedaneous

Molars

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What is located where cusp ridges Converge at central point where grooves meet on a posterior tooth

Central fossa

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What permanent maxillary teeth have 3 roots

First molars

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Which teeth have a 5th cusp

Maxillary first molar

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What does the crown of the tooth do toward the cervical line

Narrows

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What’s true of primary teeth in contrast to permanent

Crowns are narrower at the CEJ than permanent

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Most maxillary first premolars are bifurcated meaning…

2 roots on the buccal and lingual

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Marginal groove

Cross marginal ridges and serve as spillway

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Triangular fossa

Termination of triangular grooves (center)

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On the lingual surfaces of the anterior teeth, what are the rounded raised borders on the mesial and distal called

Marginal ridges

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The maxillary second premolar differs from the maxillary first premolar by

Maxillary 2nd has 1 root

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Which permanent tooth has 5th supplemental lingual cusp and what is it called

Maxillary first molar and Cusp of Carabelli

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Rounded enamel extension on incisal ridge of newly erupted central and lateral incisors

Mamelons

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Relationship between maxillary and mandibular teeth when jaws are fully closed

Occlusion

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Jaw position that produces maximal stable contact between the occluding surfaces of maxillary and mandibular

Centric occlusion

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Key to angles classification

Permanent maxillary first molar

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Which 2 teeth vary in form more than any other teeth

3rd molars and maxillary lateral incisors

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Class 1 occlusion

Neutrocclusion

Class 2 division 1 occlusion

Distocclusion and anterior labioversion

Class 2 division 2 occlusion

Distocclusion and anterior linguoversion

Class 3 occlusion

Mesiocclusion

Embryology

Study of prenatal development

Stages of prenatal development

Preimplantation, embryonic, and fetal

First signs of tooth development found in anterior mandibular region of developing embryo

5-6 weeks old (embryo)

Process of laying down bone

Deposition

What cells accomplish deposition

Osteoblasts

3 primary periods of odontogenisis

Growth, calcification, eruption

Enamel forming cells

Ameloblasts

Movement of teeth into functional position

Eruption

Rectangular area between 2 ridges running under nose

Philtrum

Angle at the corner of the mouth

Labial commissure

Space between teeth and inner mucosal lining of lips and cheeks

Vestibule

Narrow band of tissue that connects two structures

Frenum

Normal gingival tissue

Surrounds tooth in collar like fashion, self cleansing, firm, resistant, tightly adapted to tooth/bone

What type of gingiva forms the soft wall of gingival sulcus

Free, unattached, marginal

Pear shaped pad of tissue behind maxillary central incisors

Incisive papilla

Where are tastebuds located

Fungi form papillae, trough of vallate papillae

Sense of touch for tongue

Filiform papillae

Which tooth is cornerstone of dental arch and why

Canine because it's longest and lost first

Plaque

Soft (biofilm)

2 forms of periodontal

Gingivitis and periodontal disease

Periodontal disease

Infectious disease process that involves inflammation of structures of periodontium can cause cardio disease low birth weight and respiratory disease

Calculus

Tartar hard penetrates in cementum

Structure of periodontium

Gingivae, epithelial attachment, sulcus, periodontal ligaments, cementum, alveolar bone

Histology

Study of structure and function of tissue on a microscopic level

Beginning of second week to end of eighth week

Embryonic period

Dentin forming cells

Odontoblasts

Tissues that support teeth in alveolar bone

Periodontium

Cells that resorb cementum

Cementoclasts

Cells that resorb bone

Osteoclasts

What is oral mucosa made of

Stratified squamous epithelium

Name of first period of prenatal development

Preimplantation period

Which period of prenatal development is the most critical

Embryonic

Embryonic layer that differentiates into cartilage, bones and muscles

Mesoderm

Which branchial arch forms bones, muscles, nerves of face and lower lip

First

Which branchial arch forms side and front of neck

Second

When does development of face occur

5-8 weeks

Bone loss or removal

Resorption

Name of largest mineral component in enamel

Calcium

Pain transmitted through Dentin by

Dentinal fibers

Reparative dentin

Tertiary dentin

What cells form substance of pulp

Fibroblasts

Another word for primary teeth

Deciduous