Posterior Teeth Arrangement Quiz: Master Dental Anatomy

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the recommended buccolingual width for posterior teeth in complete denture prostheses?

Narrower than natural teeth

Sufficient to act as a table to hold food (correct)

Slightly wider than natural teeth

Equal to the width of natural teeth

How is the mesiodistal width of posterior teeth determined for complete denture prostheses?

Always equal to the width of natural teeth

Depends on the available edentulous space (correct)

Placed anteriorly as much as possible

Irrelevant for posterior teeth arrangement

What determines the occlusogingival height of posterior teeth in complete denture prostheses?

Width of the buccal corridor

Mesiodistal width of the opposing teeth

Size of the tongue

Available inter ridge space, occlusal plane, and height of anterior teeth (correct)

What is the standard cusp incline for anatomic posterior teeth in complete denture prostheses?

$33°$ Signup and view all the answers

What are non-anatomic posterior teeth in complete denture prostheses characterized by?

Cuspless, Monoplane or Zero degree teeth Signup and view all the answers

What determines the form and size of posterior teeth in complete denture prostheses?

Available edentulous space and occlusal plane Signup and view all the answers

Which factor is NOT considered when arranging teeth?

Occlusal plane reference Signup and view all the answers

What is the specific characteristic of lower anterior teeth?

Long axis parallel to the vertical axis Signup and view all the answers

What is a requirement for achieving lateral balance?

Contact between mandibular buccal and maxillary palatal cusps on the working side Signup and view all the answers

What is required after achieving centric balance in teeth arrangement?

Modifying teeth arrangement to achieve eccentric balance Signup and view all the answers

What factor mainly influences protrusive balance in denture setup?

Curve of Spee Signup and view all the answers

Which factor cannot be altered in the development of balanced occlusion?

Condylar inclination Signup and view all the answers

What is manipulated limitedly in the development of balanced occlusion?

Incisal guidance Signup and view all the answers

What is determined by the selection of teeth in the development of balanced occlusion?

Cuspal inclination Signup and view all the answers

What technique involves recording the neutral zone while making the impression?

Neutral zone technique Signup and view all the answers

What is marked on the stone model in the setup in neutral zone technique?

Neutral zone Signup and view all the answers

What may require lingual trimming to fit into index space in the setup in neutral zone technique?

Posterior teeth Signup and view all the answers

What aspect is concealed to make teeth look more natural in characterization?

Subtle chips Signup and view all the answers

Study Notes

Offer less resistance to horizontal forces is important in dentistry.
Factors that can indicate increased resistance include Bruxism, poor residual ridges, uncoordinated muscular movements, and malrelationship of jaws.
Harmonizing the shade of posterior teeth with the anterior teeth is important for aesthetics.
The selection of tooth material depends on the specific needs, such as porcelain for high aesthetics and adequate interarch space.
Anatomical landmarks, such as the residual ridge and the arch form, should be considered when arranging teeth.
The occlusal plane reference should be used in both the upper and lower rims, with different positions anteriorly and posteriorly.
The ideal arrangement of teeth includes a central incisor with specific characteristics, such as long axis parallel to the patient's face, labial contour blending with the face, and the incisal edge touching the occlusal plane.
Canines have a specific arrangement, with the cervical end being more prominent labially and the tip of the cusp in contact with the occlusal plane.
The lower anterior teeth have specific characteristics, including the long axis parallel to the vertical axis, incisal edge slightly above the horizontal plane, and the lateral incisor being slightly more labially sloped in the proximal aspect.
The molar teeth also have specific characteristics, including the mesiobuccal cusp of the maxillary permanent molars aligning with the mesiobuccal groove of the mandibular permanent molars.
In the case of class II or III jaw relations, a different setup is required, such as a large buccal horizontal overlap or eliminating the first premolars.
After achieving centric balance, the teeth arrangement is modified to achieve eccentric balance.
For lateral balance, posterior teeth should contact both on the working side and the non-working side, with contact occurring between the mandibular buccal and maxillary palatal cusps on the non-working side.
Anatomical landmarks, such as the residual ridge, arch form, and the retromolar pad, influence the arrangement of teeth and the occlusal plane.
The ideal arrangement of anterior teeth is limited by phonetics and aesthetics, with long teeth affecting specific sounds and the anterior/posterior position affecting pronunciation.
For lower posterior teeth, the long axis is parallel to the vertical axis in the lingual cusp, while the buccal cusp is slightly above the horizontal plane.
In class II or III jaw relations, the setup includes a flattened lingual cusp in the upper premolar occluding with the flattened buccal cusp in the lower premolar, and a large buccal horizontal overlap in the bicuspid area.
The posterior teeth should have a centric occlusion with stable non-deflective stops.
After achieving centric balance, the teeth arrangement is modified to achieve eccentric balance, and at least a semi-adjustable articulator is required.
For lateral balance, posterior teeth should contact both on the working side and the non-working side, with contact occurring between the mandibular buccal and maxillary palatal cusps on the non-working side.
All teeth should be checked for proper positioning on a flat plane, and adjustments made as necessary.
Balanced occlusion is achieved by modifying the teeth arrangement to achieve eccentric balance.
In extreme cases, negative or reverse horizontal overlap or eliminating first premolars from the upper arch may be necessary.
Transverse ridges of upper posteriors may be ground away to eliminate mesiodistal interlocking.
A special setup is required for class II or III jaw relations, with a large buccal horizontal overlap, upper molars set with their lingual cusp in the modified central cusp of the lower teeth, and posters should have a centric occlusion with stable non-deflective stops.

Studying That Suits You

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

Description

Test your knowledge on selecting size, form, and shade of posterior teeth for complete denture prostheses. Learn about buccolingual width and considerations for natural teeth replacement.

Posterior Teeth Arrangement Quiz

Choose a study mode