Dentistry Occlusion Fundamentals Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is occlusion defined as?

the relationship of the mandibular teeth to the maxillary teeth as they come together in closure.

Angle's Classification of Occlusion is based on what?

relationship of the first permanent molars.

What does Class III malocclusion represent?

This figure represents a form of malocclusion characterized by specific dental alignments.

How is Class III malocclusion characterized?

a protruded mandible. Signup and view all the answers

What class of malocclusion is described by the mandibular first molar's buccal groove being mesial to the maxillary first molar's MB cusp?

Class III malocclusion in a permanent dentition. Signup and view all the answers

What is a tooth in supraversion?

positioned above the line of occlusion. Signup and view all the answers

What term is used for a tooth turned or rotated?

torsoversion. Signup and view all the answers

An ________ tooth is anchored to bone in a fixed position.

ankylosed. Signup and view all the answers

What is a tooth positioned below the line of occlusion called?

infraversion. Signup and view all the answers

What is an occlusal overjet?

the horizontal distance between the incisal edge of the maxillary incisors and the incisal edge of the mandibular incisors. Signup and view all the answers

What is a vertical measurement between maxillary and mandibular incisal edges referred to as?

overbite. Signup and view all the answers

In normal or ideal occlusion, how do the maxillary teeth relate to the mandibular teeth?

maxillary teeth slightly overlap mandibular teeth on facial surfaces. Signup and view all the answers

What does deep and severe overbite illustrate?

a significant dental relationship affecting occlusion. Signup and view all the answers

What does cephalometric analysis evaluate?

dental and skeletal relationships. Signup and view all the answers

Tooth-to-tooth parafunctional contacts do NOT include which of the following?

Cheek biting Signup and view all the answers

What are excessive forces of occlusion on normally supported teeth referred to as?

primary trauma from occlusion. Signup and view all the answers

Excessive occlusal force placed on a tooth with poor support and unhealthy periodontium is known as what?

secondary trauma from occlusion. Signup and view all the answers

What does a mesognathic profile clinically present as?

straight profile. Signup and view all the answers

What profile is characterized by slightly protrusive jaws?

mesognathic profile. Signup and view all the answers

What profile is characterized by a prominent maxilla?

convex profile. Signup and view all the answers

What profile is characterized by a prominent mandible?

concave profile. Signup and view all the answers

What does moderate overbite illustrate?

a specific dental relationship. Signup and view all the answers

In normal or ideal occlusion, how is the molar relationship characterized?

MB cusp of the permanent maxillary first molar occluding with the buccal groove of the permanent mandibular first molar. Signup and view all the answers

What is Class I malocclusion also known as?

neutroclusion. Signup and view all the answers

What are excessive occlusal forces on teeth with poor alveolar support referred to as?

secondary trauma from occlusion. Signup and view all the answers

What is a flat, shiny, worn area on the side of a cusp known as?

a facet. Signup and view all the answers

What does normal overbite illustrate?

specific dental relationship. Signup and view all the answers

In Class II Division I malocclusion, how are the maxillary incisors positioned?

the maxillary incisors are protruded and the mandible is in a retruded position. Signup and view all the answers

What are functional contacts?

tooth contacts made during chewing and swallowing. Signup and view all the answers

A tooth in labioversion is in a position that is?

facial to normal position. Signup and view all the answers

What does ideal occlusion illustrate?

a correctly aligned dental occlusion. Signup and view all the answers

What does terminal step occlusion in primary dentition refer to?

primary molar occlusion. Signup and view all the answers

What is severe overbite?

a significant vertical overlap between maxillary and mandibular incisors. Signup and view all the answers

What does open bite illustrate?

a lack of vertical overlap. Signup and view all the answers

What is the term for movement in tooth position caused by periodontal infection?

pathological migration. Signup and view all the answers

How does occlusion and the health of the masticatory system affect the patient?

Occlusion influences overall health, including dental and systemic health. Signup and view all the answers

Study Notes

Occlusion Fundamentals

Occlusion defines the relationship between mandibular and maxillary teeth during closure.
Angle's Classification of Occlusion categorizes occlusions based on the relationship of first permanent molars.

Classifications of Malocclusion

Class III malocclusion is indicated by a protruded mandible.
Class III malocclusion features the mandibular first molar's buccal groove positioned mesial to the maxillary first molar cusp by a premolar width.
Class I malocclusion, known as neutroclusion, has maxillary teeth slightly overlapping mandibular teeth on facial surfaces.

Tooth Position Variations

Supraversion describes a tooth positioned above the occlusal line.
Infraversion refers to a tooth positioned below the line of occlusion.
Torsoversion denotes a tooth that is rotated or turned.
Ankylosed teeth are firmly anchored to the bone.

Occlusal Measurements

Occlusal overjet measures the horizontal distance between the incisal edges of maxillary and mandibular incisors.
Overbite is the vertical measurement between maxillary and mandibular incisal edges.
Normal occlusion presents in the molar relationship where the MB cusp of the maxillary first molar occludes with the buccal groove of the mandibular first molar.

Impact of Occlusion on Health

Primary trauma from occlusion relates to excessive forces on teeth with normal bone support.
Secondary trauma from occlusion occurs when excessive occlusal forces affect teeth with poor bone support and unhealthy periodontal tissues.
Pathological migration refers to tooth movement caused by periodontal infection.

Profiles Associated with Occlusion

A mesognathic profile features slightly protrusive jaws, resulting in a straight facial appearance.
A convex profile is characterized by a prominent maxilla.
A concave profile features a prominent mandible.

Specific Occlusal Conditions

Deep and severe overbites and moderate overbites can be illustrated diagrammatically.
Functional contacts occur during chewing and swallowing, as opposed to parafunctional contacts, which do not include cheek biting.
Facets are flat, shiny, worn areas on the sides of cusps.

Additional Notes

Ideal occlusion is depicted where maxillary teeth slightly overlap mandibular teeth.
Terminal step occlusion refers to primary molar occlusion patterns during the eruption of primary dentition.
Diagrams may help illustrate concepts such as normal, severe overbite, and open bite conditions.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on the fundamentals of occlusion in dentistry, including classifications of malocclusion and tooth position variations. Explore key concepts like Angle's Classification and occlusal measurements to solidify your understanding of dental occlusion dynamics.