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76 Cards in this Set
- Front
- Back
The study of prenatal development |
Embryology |
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The study of the structure and function of tissues on a microscopic level |
Histology |
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Begins at the start of pregnancy and continues until birth |
Prenatal Development |
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Extends from the beginning of the second week to the end of the eight week |
Embryonic Period |
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The union of the male sperm and the ovum of the female |
Conception |
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Permanent teeth with primary predecessors, examples are the anterior teeth and premolars |
Succedaneous Teeth |
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The tissues that support the teeth in the alveolar bone |
Periodontium |
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Enamel-forming cells are called |
Ameloblasts |
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Dentin-forming cells are called |
Odontoblasts |
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Cementum-forming cells are called |
Cementoblasts |
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Cells that resorb cementum are called |
Cementoclasts |
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Cells that resorb bone are called |
Osteoclasts |
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The normal process of shedding primary teeth |
Exfoliation |
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Oral mucosa is made up of |
Stratified Squamous Epithelium |
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Oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva is |
Masticatory Mucosa |
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What is the first period of prenatal development |
Preimplantation Period |
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Which period of prenatal development is the most critical |
Embryonic Period |
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The embryonic layer that differentiates into cartilage, bones, and muscles |
Mesoderm |
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Which branchial arch forms the bones, muscles, and nerves of the face and lower lip |
First |
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Which brachial arch forms the side and front of the next |
Second |
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The hard and soft palates are formed by the union of the primary and secondary |
Palates |
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When does the development of the human face occur |
Fourth to eighth weeks |
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At birth, how many teeth are in some stage of development |
44 |
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What factors can have a prenatal influence on dental development |
Genetics Environment |
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Name the process for the laying down or adding of bone |
Deposition |
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Name the process of bone loss or removal |
Resorption |
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Growth, calcification, and ______ are the 3 primary periods in tooth formation |
Eruption |
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The final stage in the growth period is the |
Bell Stage |
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What is formed in the occlusal surface when multiple cusps join together |
Fissure and Pit |
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What is the name of the process by which teeth move into a functional position in the oral cavity |
Eruption |
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The portion of a tooth that is visible in the mouth is the |
Clinical Crown |
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The cementoenamel junction is located |
Between the cementum and the enamel |
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The hardest substance in the human body is |
Enamel |
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What is the name of the largest mineral component in enamel |
Calcium |
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Pain is transmitted through dentin by the way of |
Dental Fibers |
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The type of dentin that is also know as reparative dentin is |
Tertiary Dentin |
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The pulp is make up of |
Blood Vessels and Nerves |
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What type of cells form the intercellular substance of the pulp |
Fibroblasts |
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The primary function of the periodontal ligament is |
To support the tooth To maintain the tooth To retain the tooth |
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Which type of oral mucosa forms the inside of the cheeks, lips, and soft palate |
Lining Mucosa |
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In which stage of tooth development do the cells of the tooth grow and increase in number |
Cap Stage |
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What is the stomodeum in a developing human embryo |
Primitive Mouth |
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When the embryo is 5 to 6 weeks old, the first signs of tooth development are found in the |
Lower Anterior |
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From what embryonic layer does the cementum form |
Mesoderm |
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What portion of the tooth germ is directly responsible for dentin formation |
Dental Papilla |
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Beginning the fifth week the embryo is approximately how long |
5 mm |
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Which is the cause of staining of primary teeth |
Tetracycline |
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The stages of prenatal development are |
Preimplantation, Embryonic, and Fetal Periods |
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By which does the enamel of the tooth develop |
Enamel Organ |
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During which stage do the teeth frown and increase in number |
Proliferation (Cap Stage) |
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What is the first stage of development |
Initiation (Bud Stage) |
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Those permanent teeth which replace the primary teeth are called |
Succedaneous |
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In which stage do the cells become specialized |
Histodifferentiation (Bell Stage) |
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Each tooth develops from a |
Tooth Bud |
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During which developmental period does the tooth structure become hard |
Calcification |
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The wearing on the surfaces of the tooth during normal chewing is called |
Attrition |
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The wearing away or loss of tooth structure y chemical process without known bacterial action is called |
Bulimia |
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At what age does the primary mandibular first molar usually erupt |
12 Months |
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Amber colored teeth which wear down quickly after eruption are due to a hereditary condition know as |
Dentinogenesis Imperfecta |
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Congenital syphilis may result in peg-shaped teeth known as |
Hutchinson Incisor |
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What is the term used to describe abnormally large teeth |
Macrodontia |
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Supernumerary teeth are |
Extra Teeth |
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When one tooth follicle forms two teeth it is known as |
Gemination |
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What is the name of teeth that re present at birth |
Natal Teeth |
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Impaction is |
Any tooth the remains unerupted in the jaws beyond the time it would normally erupt |
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What is the term used to describe abnormally small teeth |
Microdontia |
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The wearing away of the tooth surface by mechanical process is |
Abrasion |
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The wearing away of the tooth surface by clenching or grinding your teeth is |
Bruxism |
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The part of the pulp that lies within the crown portion of the pulp is called |
Coronal Pulp |
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What is the thin, compact bone lining the alveolar socket |
Lamina Dura |
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An extension of the free gingiva is called the |
Interdental papilla |
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The space between the free gingiva and the tooth is known as the |
Gingival Sulcus |
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What is the term used to describe the cavity within the alveolar process in which the root of a tooth is held by the periodontal ligament |
Alveolar Socket |
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This structure anchors teeth within their sockets and reduces stress during chewing |
Periodontal Fibers |
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The root covering of the tooth is known as |
Cementum |
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The growth period is divided into what 3 stages |
Bud, Cap, and Bell |