What is the Curve of Spee?
A curvature that begins at the tip of the canine and follows the buccal cusp tips of premolars and molars posteriorly.
What is the Curve of Wilson?
A curvature due to the lingual inclination of the mandibular molars, where mandibular teeth are concave and maxillary teeth are convex.
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occlusal curvature

What is the Curve of Spee?

A curvature that begins at the tip of the canine and follows the buccal cusp tips of premolars and molars posteriorly.

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occlusal curvature

What is the Curve of Wilson?

A curvature due to the lingual inclination of the mandibular molars, where mandibular teeth are concave and maxillary teeth are convex.

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Tooth Surfaces and Ridges

What is the labial surface?

The surface toward the lips in incisors and canines.

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Tooth Structure: Crown and Root

What does the term 'maxillary' refer to?

The upper jaw.

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Formation and Development of Teeth

What are mamelons?

The terminations of anterior labial lobes incisally, present in primary and permanent teeth, which flatten over time.

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Root Form

Why does the canine have the longest root?

Because of its function and location.

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Nomenclature and Classification of Teeth

What is the Universal Notation System for primary dentition?

Uses uppercase letters A through J for maxillary teeth and K through T for mandibular teeth.

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Nomenclature and Classification of Teeth

How does the Zsigmondy/Palmer Notation System classify teeth?

Each quadrant is given a bracket, with permanent teeth numbered 1-8 and primary teeth A-E from midline to posterior.

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Tooth Structure: Crown and Root

What are the two main portions of a tooth?

Crown and root.

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Tooth Structure: Crown and Root

What covers the root portion of a tooth?

Cementum.

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Geometric Outlines of Tooth Crowns

What is the shape of the proximal crown outline of all mandibular posterior teeth?

Rhomboidal.

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Functions of Teeth in Digestion and Speech

What does the rhomboid outline facilitate in terms of occlusion?

Establishment of intercuspal relation between opposing teeth.

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Tooth Structure: Crown and Root

What is the function of the alveolar process?

It serves as support for the tooth.

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Functions of Teeth in Digestion and Speech

What is the primary function of teeth?

To prepare food for swallowing and facilitate digestion.

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Tooth Structure: Crown and Root

What are interproximal spaces?

Proximal contacts of approximating teeth that protect the soft tissues (gingiva) in between.

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Tooth Structure: Crown and Root

What is the cervical line?

A stable anatomical demarcation of teeth located lower on the tooth.

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Line Angles and Point Angles

What are the point angles of posterior teeth?

Mesiobucco-occlusal, Mesiolinguo-occlusal, Distobucco-occlusal, Distolinguo-occlusal.

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Comparative Dental Anatomy

What is the significance of comparing human dentition with other vertebrates?

It helps to understand the differences in form and function of human dentition.

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Formation and Development of Teeth

Describe the triconodont tooth form.

It has three cusps in line, with the largest cusp centered and smaller cusps anteriorly and posteriorly.

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Functions of Teeth in Digestion and Speech

How does the trapezoidal outline protect the periodontium?

By providing contact between teeth, which prevents food from readily passing through.

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Tooth Structure: Crown and Root

Where do the crown and root of a tooth join?

At the cementoenamel junction (CEJ).

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Tooth Structure: Crown and Root

What are the two main components of the pulp cavity?

Pulp chamber and pulp canal.

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Functions of Teeth in Digestion and Speech

What is the significance of the trapezoidal outline in self-cleansing?

Allows sliding of food material along the inclined planes of facial and lingual crown surfaces.

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Tooth Surfaces and Ridges

What surfaces do incisors and canines have?

Four surfaces and a ridge.

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Formation and Development of Teeth

What characterizes the tribulercular molar?

It has three cusps arranged in a triangle, found in carnivorous animals.

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Tooth Surfaces and Ridges

What is the contact area of a tooth?

The area of the mesial or distal surface that touches its neighbor in the arch.

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Formation and Development of Teeth

What is the role of lobes in tooth formation?

Lobes represent primary centers of formation, with each tooth crown appearing as a combination of four or more lobes.

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Nomenclature and Classification of Teeth

What is the two-digit system proposed by the Federation Dentaire Internationale (FDI)?

The first digit indicates the quadrant and the second digit indicates the tooth within that quadrant.

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Formation and Development of Teeth

What is oral anatomy physiology?

A branch of biology that deals with the normal function of living organisms and their parts.

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Line Angles and Point Angles

What are the line angles of anterior teeth?

Mesiolabial, Distolabial, Labioincisal, Mesiolingual, Linguoincisal.

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Line Angles and Point Angles

What is a point angle in oral anatomy?

It is formed by the junction of three surfaces and derives its name from the combination of those surfaces.

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Comparative Dental Anatomy

What is forensic dentistry?

The field that evaluates, manages, and presents dental evidence in legal proceedings.

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Tooth Structure: Crown and Root

What is fenestration in dental anatomy?

A window type partial absence of bone over the root area of a tooth.

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Formations of Dentitions

What is the transition stage in dentition?

A mixture of deciduous and succedaneous teeth present from about 6 to 12 years of age.

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Geometric Outlines of Tooth Crowns

What geometric figures can outline the crown of a tooth?

Triangle, trapezoid, or rhomboid.

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Line Angles and Point Angles

What are the line angles of posterior teeth?

Mesiobuccal, Distobuccal, Bucco-occlusal, Mesio-occlusal, Linguo-occlusal, Disto-occlusal.

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Line Angles and Point Angles

What are the point angles of anterior teeth?

Mesiolabioincisal, Distolabioincisal, Mesiolinguoincisal, Distolinguoincisal.

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Formation and Development of Teeth

What is dental anatomy?

The study of the development, morphology, function, and identity of each of the teeth in human dentitions.

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Geometric Outlines of Tooth Crowns

What is the base and apex orientation of the triangular outline for anterior teeth?

Base towards the cervical area and apex towards the incisal ridge.

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Functions of Teeth in Digestion and Speech

What does the trapezoidal outline of teeth provide?

Contact between teeth at proximal areas, interproximal spaces, and spacing between roots.

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Functions of Teeth in Digestion and Speech

What is the significance of the triangular outline for anterior teeth?

Increases strength, stability, and efficient resistance against masticatory forces.

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Tooth Structure: Crown and Root

What does the gingival line represent?

The gingival level on the tooth at any period of an individual's life.

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Tooth Structure: Crown and Root

What is dehiscence in dental anatomy?

A cleft type partial absence of bone over the root area of the tooth.

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Comparative Dental Anatomy

How does forensic dentistry interact with other fields?

It interfaces with anthropologists, criminologists, toxicologists, pathologists, and law enforcement officials.

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Tooth Surfaces and Ridges

What are the four surfaces of a tooth?

Enamel, cementum, dentin, and pulp.

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Tooth Surfaces and Ridges

How many surfaces do premolars and molars have?

Five surfaces.

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Tooth Surfaces and Ridges

What is the difference between mesial and distal surfaces?

Mesial surfaces face toward the median line, while distal surfaces are most distant from it.

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Line Angles and Point Angles

What is a line angle in oral anatomy?

It is formed by the junction of two surfaces and derives its name from the combination of those surfaces.

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Tooth Structure: Crown and Root

What covers the crown of a tooth?

Enamel.

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Tooth Structure: Crown and Root

What is the main bulk of the tooth composed of?

Dentin.

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Formations of Dentitions

What are the two sets of teeth in humans?

Primary (Deciduous) Dentition and Permanent (Succedaneous) Dentition.

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Formations of Dentitions

What is the age range for the eruption of permanent teeth?

From about 6 years to around 28 years of age.

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Nomenclature and Classification of Teeth

What are the classifications of teeth according to location?

Anterior Teeth (incisors and canines) and Posterior Teeth (premolars and molars).

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Formation and Development of Teeth

What is a quadritubercular molar?

A tooth with four cusps arranged in a quadrangle, reflecting occlusal contact between upper and lower jaws.

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Nomenclature and Classification of Teeth

What is malocclusion?

Deviations in intramaxillary and/or intermaxillary alignment of the teeth or jaws.

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Tooth Structure: Crown and Root

What is the role of interdental papilla?

It fills in the interproximal spaces and covers part of the cervical third of the tooth crown.

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Formation and Development of Teeth

When does the primary dentition begin to form?

Prenatally at about 14 weeks in utero.

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Formation and Development of Teeth

What is the haplodont tooth form?

A single cone tooth, the simplest form, mainly for food procurement, and does not occlude.

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Tooth Structure: Crown and Root

What does the term 'mandibular' refer to?

The lower jaw.

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Comparative Dental Anatomy

Which animals have dentitions similar to humans?

Anthropoid apes, including chimpanzees, gibbons, gorillas, and orangutans.

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