Tooth Morphology Workbook 1
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Questions and Answers

Which of the following describes the 'apex' of a tooth?

  • The tip of the root. (correct)
  • The point where the root and crown meet.
  • The point where two roots divide.
  • The area where the tooth meets the gum line.

    • What is the 'cervical' region of a tooth?

  • The area where the tooth meets the gum line. (correct)
  • The area where two roots divide.
  • The tip of the root.
  • The point where the tooth meets the opposing tooth.

    • Which of the following tooth surfaces is affected by 'attrition'?

  • The mesial surface.
  • The occlusal and incisal surfaces. (correct)
  • The buccal surface.
  • The distal surface.

    • What is the function of the 'apical foramen' in a tooth?

    <p>To allow for the passage of blood, nerve, and lymph. (B)</p> Signup and view all the answers

    What is the 'cusp of Carabelli'?

    <p>An extra cusp on the mesio-palatal surface of first maxillary permanent molars. (B)</p> Signup and view all the answers

    Which part of a tooth primarily protects it from the external environment?

    <p>Enamel (A)</p> Signup and view all the answers

    In the context of tooth anatomy, what does the term 'gingivae' refer to?

    <p>The soft tissue surrounding the teeth (D)</p> Signup and view all the answers

    What is primarily found within the pulp chamber of a tooth?

    <p>Nerves and blood vessels (A)</p> Signup and view all the answers

    Which part of the tooth is responsible for anchoring it to the jawbone?

    <p>Cementum (B)</p> Signup and view all the answers

    What is the primary function of the periodontal ligament in tooth anatomy?

    <p>To connect the tooth to the bone (A)</p> Signup and view all the answers

    What is the primary function of dentine?

    <p>To provide support to the enamel and protect the pulp (A)</p> Signup and view all the answers

    Which of the following describes the location of enamel?

    <p>Covers the crown of the tooth (A)</p> Signup and view all the answers

    What characteristic of dentine allows it to respond to injury?

    <p>Its toughness and slight elasticity (C)</p> Signup and view all the answers

    Which structure is described as a tough fibrous layer covering the bones of the upper and lower jaws?

    <p>Cementum (B)</p> Signup and view all the answers

    What is one of the essential roles of the pulp in a tooth?

    <p>Regulates blood supply and sensation (C)</p> Signup and view all the answers

    Which dental notation refers specifically to primary teeth?

    <p>Universal numbering system (D)</p> Signup and view all the answers

    Which of the following correctly describes the composition of enamel?

    <p>Made primarily of hydroxyapatite crystals (A)</p> Signup and view all the answers

    What is a key characteristic of dentine as compared to enamel?

    <p>Dentine can repair itself more readily than enamel (C)</p> Signup and view all the answers

    What is the term for the space formed where teeth diverge from the contact points?

    <p>Embrasure (B)</p> Signup and view all the answers

    Which part of the tooth is defined as a projection of pulp towards the cusp or incisal edge?

    <p>Pulp horn (C)</p> Signup and view all the answers

    What is the abnormal occlusion of the teeth referred to as?

    <p>Malocclusion (D)</p> Signup and view all the answers

    Which term describes the space between the contact areas and interdental bone?

    <p>Interdental/interproximal (B)</p> Signup and view all the answers

    Which of the following best describes a shallow depression on a tooth surface?

    <p>Fossa (B)</p> Signup and view all the answers

    What is the biting edge of the incisors called?

    <p>Incisal edge (A)</p> Signup and view all the answers

    What is a term for the rounded protuberances observed on newly erupted teeth?

    <p>Mamelons (B)</p> Signup and view all the answers

    Which term is used for the linear elevation on the surface of a tooth?

    <p>Ridge (A)</p> Signup and view all the answers

    What designates the relationship of upper and lower teeth when jaws are closed together?

    <p>Occlusion (B)</p> Signup and view all the answers

    Which part of the tooth is characterized as a small opening for blood and nerve vessels?

    <p>Foramen (C)</p> Signup and view all the answers

    Flashcards

    Enamel

    The hard outer surface of a tooth that protects it.

    Dentine

    The layer beneath enamel, softer and makes up most of the tooth.

    Pulp chamber

    The central part of the tooth containing nerves and blood vessels.

    Cementum

    A bone-like substance covering the tooth's root, helping anchor it.

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    Periodontal ligament

    Connective tissue that holds the tooth in its socket.

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    Tooth Structure

    Basic components of a tooth including enamel, dentine, and pulp.

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    Function of Dentine

    Provides support to enamel and protects the pulp.

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    Pulp

    Soft tissue inside the tooth that contains nerves and blood vessels.

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    Tooth Functions

    Teeth work to chew, speak, and maintain the shape of the face.

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    Dental Notation

    System used to identify primary and secondary teeth in clinical practice.

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    Tooth Morphology Terminology

    Words and terms to describe features and landmarks on the tooth surface.

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    Abrasion

    The physical wearing away of tooth substance

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    Alignment

    To arrange in a line

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    Alveolar process

    The bone of the maxilla and mandible that supports the teeth

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    Attrition

    Wearing down of the occlusal and incisal surfaces through use

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    Cusp of Carabelli

    An extra cusp found on the mesio-palatal surface of first maxillary permanent molars

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    Diastema

    Spacing between the teeth, commonly between upper central incisors.

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    Eruption

    Process where teeth appear through the gingivae to take their place.

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    Embrasure

    Space formed where teeth diverge at contact points.

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    Fissure

    A fault caused by imperfect joining of developmental lobes.

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    Labial

    Pertaining to the lips.

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    Lingual

    Pertaining to the tongue.

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    Malocclusion

    Abnormal occlusion (alignment) of the teeth.

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    Mamelons

    Rounded protuberances on newly erupted teeth.

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    Mastication

    The act of chewing food.

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    Transverse ridge

    Ridge descending from cusp tip to the central part of the occlusal surface.

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    Study Notes

    Tooth Morphology Workbook 1

    • The workbook is to be used alongside sessions on dentition/tooth morphology
    • Learning outcomes include recognition of tooth structure and surrounding tissues, understanding tooth functions, and clinical application of dental notations for primary and secondary teeth
    • Terminology used in tooth morphology is crucial for recognizing various landmarks on tooth surfaces

    Tooth Structure

    • Dentine: Forms the bulk of the tooth, tough, slightly elastic, yellow in colour. Reacts to injury and stimuli. Can repair itself. Supports enamel and protects pulp.
    • Enamel: A tough connective tissue layer covering the root. Embedded within the dentine walls.

    Dental Terminology

    • Abrasion: Physical wearing away of tooth substance

    • Alignment: Arranging teeth in a line

    • Alveolar process: Bone of the maxilla and mandible supporting teeth

    • Apex: Tip of the root

    • Apical foramen: Opening at the apex, where blood, nerves and lymph pass

    • Atrophy: Wasting away of tissue

    • Attrition: Wearing down of occlusal/incisal surfaces by use

    • Bifurcation: Point where two roots divide

    • Canine: Third tooth from the midline, used for gripping

    • Cervical: Pertaining to the neck of the tooth

    • Cingulum: Lingual or palatal lobe found on incisor teeth

    • Cusp: Peak on the occlusal surfaces of teeth

    • Cusp of Carabelli: Extra cusp on the mesio-palatal surface of first maxillary permanent molars

    • Contact point: Where two teeth meet to form an interproximal area

    • Deciduous: Old term for primary dentition

    • Developmental groove: Linear indentations dividing cusps, formed during crown development

    • Diastema: Spacing between teeth, often seen between upper central incisors

    • Disto-incisal angle: Point where distal and incisal edges meet

    • Embrasure: Spillway space where teeth diverge from contact points

    • Eminence: General term for a protuberance or bulge

    • Eruption: Process where teeth emerge through gingivae

    • Fissure: Fault caused by imperfect joining of developmental lobes, found on occlusal or buccal surfaces

    • Fossa: Shallow depression

    • Foramen: Small opening for blood, nerves and vessels to pass

    • Pulp horn: Pulp projection towards cusp or incisal edge

    • Incisor: First and second teeth from the midline, used for cutting

    • Incisal edge: Biting edge of incisors

    • Interdental/interproximal: Space between contact areas and interdental bone

    • Labial: Pertaining to the lips

    • Lingual: Pertaining to the tongue

    • Malocclusion: Abnormal occlusion of teeth

    • Mamelons: Rounded protuberances on newly erupted teeth

    • Marginal ridge: Enamel ridges at mesial and distal edges of teeth

    • Mastication: Act of chewing

    • Mesio-incisal angle: Point where mesial and incisal edges meet

    • Molar: Sixth, seventh and eighth permanent tooth from the midline

    • Oblique ridge: Ridge running obliquely across occlusal surfaces of maxillary molars

    • Occlusal: Biting surface

    • Occlusion: Relationship of upper and lower teeth when jaws are closed together

    • Palatal: Pertaining to the palate

    • Periodontal: Surrounding the tooth

    • Pit: Small, pointed depression at junction of two or more developmental grooves

    • Pulp: Vital part of the tooth contained in the pulp chamber

    • Ridge: Linear elevation on tooth surface

    • Root trunk: Part of the root between cervix and point of separation of the roots

    • Transverse ridge: Ridge descending from cusp tip to the central part of the occlusal surface

    • Trifurcation: Point of division of three roots

    • Tubercle: Rounded elevation on the crown surface, often a deviation from the norm

    Dental Notation

    • Various methods such as Palmer notation and FDI notation for identifying teeth are used in dentistry.

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    Related Documents

    Tooth Morphology Workbook 1 PDF

    Description

    This workbook enhances your understanding of tooth morphology and dentition. It covers key concepts such as tooth structure, functions, and important terminology related to dental anatomy. Engage with the material to improve clinical application skills and recognize various tooth landmarks.

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