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57 Cards in this Set
- Front
- Back
What are the three areas of anthropology that study teeth?
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Paleontology, Bioarchaeology/Skeletal Biology, Forensic Anthropology
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Why Paleontology?
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Dentine lasts longer, mineralized, not eaten by carnivores
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Why Bioarchaeology?
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teeth record the environment, wear patterns, adaptation, diet
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Why Forensic Anthro?
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Identification
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Three contributors to the dentofacial complex are?
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Genetic Complex, Environmental (nutrition, biomech), Functional Forces (deterioration, muscle action, biomech)
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Dental tissues include:
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enamel, dentine, cementum, pulp, periodontal complex
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The periodontal complex is:
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Anchoring mechanism, bone and ligament
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Three types of dentofacial tissues are:
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dental, soft, skeletal
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Skeletal tissues include:
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bone (alveolar), cartilage
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Soft tissues include:
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neuromuscular (voluntary) and "other" (glands, nerves, skin, mucus membrane)
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Neuromuscular (voluntary) Soft Tissues include:
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Perioral (superficial muscles of the face: expression, connect skin to bone), Intraoral (Muscles of mastication, deep muscles, muscles of tongue)
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The Oralfacial complex includes:
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breathing, speech, vision, hearing
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Darcy Thompson
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Form & Function, What functions does breathing entail in people of varying ages
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Bone responds to _________.
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Soft tissues
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Development of ________ affects the head.
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Brain growth, eyes, dental development
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Three calcified tissues are:
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enamel, dentine, cementum
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Dentin is exposed through:
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attrition, carious lesions, trauma, age
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Coronal Dentine is
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Dentin covered by enamel
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The pulp has three functions which are:
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sensory, nutritive, reparative
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What does the mesoderm give rise to?
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dentin & cementum, muscle, cartilage and bone
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Dentin is different from bone how?
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Dentin is porous
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Which cells produce dentin?
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Odontoblasts
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Where are odontoblasts located
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In the pulp chamber, monitor dentin
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What dentition has different types of teeth in it?
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Heterodontic Dentition
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4 Types of tooth notation
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Anatomical, clinical, paleontological, forensic
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90 Degree Method
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use midsagittal plane, use 90 degree angles
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Universal Dental Numbering system
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1-32 right to left, a-z right to left
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Federation Dentaire Internationel
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Quadrants, number starts at MSP, I-IV for permanent, V-VIII for deciduous
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2 Features of an Incisor
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Single root, blade
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4 Functions of an Incisor
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Mastication, Aesthetics, Phonetics, Guide jaws at rest
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Root dentin is______.
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covered by cementum
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Mesochyme
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gives rise to muscle & bone in embryo
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Pulp is derived from the____.
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mesoderm
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Why is dentine porous?
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Tubules go through dentine
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Dentin over time
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Odontoblasts deposit it continuously in pulp chamber, 80% crystalline but denser than bone
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Cementum over time
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Continues to lay on tooth root, remodels periodontal ligament, root is constantly growing, includes collagen, denser than bone
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Enamel is
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ectodermal
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Ectoderm gives rise to
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skin, hair, tooth enamel
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Enamel is
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97% crystalline, densist mineralized tissue in mammalian body, acellular
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Enamel is laid down by
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ameloblasts, ONCE
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Neck of the Tooth
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CET Junction or cervical region
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Interdental septum
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area of bone btw sockets of teeth
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Inter-radicular septum
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area of bone btw tooth with multiple roots
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Periodontal ligament
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anchors tooth to socket, collagenous bone fibers
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Pulp cavity
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living part of tooth, lymph blood and nerves
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Anatomical Crown
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Superior to the CEJ in mandibular teeth, can ONLY get smaller with age
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Clinical Crown
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Visible in oral cavity, gingival to tip, smaller than anatomical crown
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Toothless Phase of Infancy
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0-6 Months
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Deciduous teeth are present at ___ age.
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about 2.5 to 3 years of age
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Use Phase of Deciduous Teeth
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about 3-6 years of age
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Phase of Mixed Dentition
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about 6-13 years of age
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Use Phase of Permanent Teeth
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13+
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Logan & Kronfeld
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Cleft palate surgeon, 10-15 samples of stillborns, use non-normal specimens
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Teeth in Maxilla (size)
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Decrease in size from front to back
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Teeth in Mandible (size)
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Increase in size from front to back
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Which arch is larger?
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Maxillary
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Deciduous Molars are replaced by
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Permanent Premolars
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