Prosthodontic Dentistry Final Exams
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Sagittal and transversal occlusal curves by Spee and Monson-Willson serve for:

  • Static and dynamic balance of teeth and dental arches during conversation.
  • Static and dynamic balance of teeth and dental arches at central movements of the lower jaw.
  • Static and dynamic balance of teeth and dental arches at eccentric movements of the lower jaw. (correct)
  • Static and dynamic balance of dental arches at centric movements of the lower jaw.
  • Static and dynamic balance only of teeth at centric movements of the lower jaw.

For the incisal edge of lower central incisors, it is characteristic:

  • Medial and distal angles have abrasion.
  • Distal angles are straight, medial - obtuse.
  • Medial and distal angles are obtuse.
  • Medial and distal angles are straight. (correct)
  • Medial angles are straight, and distal - obtuse.

For occlusal jaw's relationships, it is characteristic:

  • Forced distal position of the condyles in articular fossae.
  • Middle position of the condyles in articular fossae.
  • The lowest, middle position of the condyles in articular fossae.
  • The highest not forced distal position of the condyles in articular fossae. (correct)
  • The highest not forced forward position of condyles in articular fossae.

For central occlusion, it is characteristic:

<p>Condyles displace from the position of occlusal jaws relationships in articular fossae forward on 0,1-1,5мм situating near the basis of articular protuberances. (B)</p> Signup and view all the answers

Physiological interocclusal space in medium is equal:

<p>2,0-3,0мм (D)</p> Signup and view all the answers

The regime of polymerization of hotcure acryl requires:

<p>Smooth heating water bath till boiling and boiling 30-45 min. (C)</p> Signup and view all the answers

The classical method of hotcure acryl using provides:

<p>Getting waxen composition, packing and introducing acryl into the print. (A)</p> Signup and view all the answers

Coldcure plastics are used with the purpose of manufacturing artificial prosthesis:

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

The modern composites require modeling prosthesis:

<p>Drop-by-drop directly on model. (E)</p> Signup and view all the answers

Acryl "Carbodent" is applied for manufacturing:

<p>Temporary artificial dental prosthesis. (A)</p> Signup and view all the answers

Acryl “Sinma-74” is applied for manufacturing artificial prosthesis:

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

Relationships between monomer and polymer at preparation of acryl:

<p>1:2. (E)</p> Signup and view all the answers

The impression materials as Kromopan, Elastic, Ypen are:

<p>Irreversible hydrocolloid impression materials. (B)</p> Signup and view all the answers

Alginate impression materials are used for taking impressions:

<p>In one stage. (C)</p> Signup and view all the answers

Impression materials Xantopren, Optosil, Dentaflex concern to:

<p>Siliconic impression materials. (E)</p> Signup and view all the answers

Preparation of oral cavity to prosthetic treatment provides:

<p>Sanation of oral cavity. (E)</p> Signup and view all the answers

Hard tooth tissues lesions by Burlui appeared after teeth eruption concern to:

<p>IV class. (B)</p> Signup and view all the answers

Hereditary defects of hard tooth tissues by V.Burlui concern to:

<p>II class. (D)</p> Signup and view all the answers

At IDOTS (Index Destruction of Occlusal Tooth Surface) not exceeding 0,2-0,3 мм2 are recommended lays from:

<p>Alloys of metals. (B)</p> Signup and view all the answers

Cast crowns are indicated:

<p>On lateral teeth. (B)</p> Signup and view all the answers

For tooth preparation under ceramic crown from height of the natural tooth crown will be grinded:

<p>1/3. (A)</p> Signup and view all the answers

The modern technique of aesthetic composites crowns (Isosit) manufacturing requires:

<p>Level-by-level direct modeling from pastes of the appropriate colors. (A)</p> Signup and view all the answers

Combined metal-ceramic and metal-acrylic artificial crowns with cast metal skeleton are indicated:

<p>As micro prosthesis and aggregation elements of the bridge dentures. (E)</p> Signup and view all the answers

Thickness of metallic skeleton in metal -ceramic artificial crown should be:

<p>0,3-0,4мм. (D)</p> Signup and view all the answers

Thickness of aesthetic part in metal-ceramic crown:

<p>0,8-2мм. (C)</p> Signup and view all the answers

The borders of equatorial artificial crown are located:

<p>In the limits of tooth equatorium. (D)</p> Signup and view all the answers

Telescopic artificial crown is indicated:

<p>As element of removable artificial prosthesis fixation. (D)</p> Signup and view all the answers

Requirements to occlusal tooth surface preparation under metal fused ceramic and metal-acrilartificial crown:

<p>Creation of interocclusal space equal to 1-1,5 mm with the relief similar to one before preparation. (C)</p> Signup and view all the answers

Beginning the tooth preparation under artificial crown with occlusal surface has advantage:

<p>Facilitate proximal tooth surfaces preparation. (B)</p> Signup and view all the answers

Partial artificial crowns 4/5 are indicated:

<p>On premolars. (B)</p> Signup and view all the answers

Equatorial artificial crowns are indicated:

<p>On molars. (E)</p> Signup and view all the answers

Aesthetic Jaket ceramic or compositeartificial crowns are indicated:

<p>On frontal teeth with high crowns. (B)</p> Signup and view all the answers

At cast crowns manufacturing the cervical line is prepared:

<p>With shoulder. (A)</p> Signup and view all the answers

Proximal grooves at teeth preparation under 4/5 artificial crowns have the depth:

<p>0,5-0,8 mm. (D)</p> Signup and view all the answers

The edge of metal stump crown is introduced in dental-gingival sulks on:

<p>0,2-0,3 mm. (D)</p> Signup and view all the answers

To obtain retention properties of tooth abutment after its preparation under metal-ceramic crown from height of natural tooth crown it should consists:

<p>2/3. (C)</p> Signup and view all the answers

Vertical surfaces of tooth prepared under Jacket, metal-ceramcic and metal-acrilic artificial crowns are prepared under angle to occlusal surface:

<p>2-10°. (A)</p> Signup and view all the answers

The width of the shoulder in cervical region under Jacket ceramic crown makes:

<p>0,8-1,2 mm. (E)</p> Signup and view all the answers

Interocclusal space after preparation of the tooth under Jacket ceramic crown is equal to:

<p>1,5-2,0 mm. (B)</p> Signup and view all the answers

Preparation of tooth under Jacket acryl or composites crown will be made as under:

<p>Ceramic crown. (D)</p> Signup and view all the answers

Places of internal surface for acryl crown interfering testing the crowns on support tooth are removed with the help of:

<p>Spherical dental bur. (D)</p> Signup and view all the answers

Places of internal surface of artificial acryl crown interfering testing the crown on support tooth are determined:

<p>By articulation paper. (B)</p> Signup and view all the answers

To protect marginal gingiva from trauma at tooth preparation the direction of rotating abrasive instrument should be:

<p>From cervical region to occlusal surface. (B)</p> Signup and view all the answers

The modern technique of proximal surfaces support tooth preparation for artificial crown manufacturing requires using:

<p>Diamond burs. (E)</p> Signup and view all the answers

At metal-ceramic artificial crown manufacturing are used impression materials:

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

In mixed artificial crown by SUMPh “N.Testemițanu”as retention elements are applied:

<p>Back conical openings. (B)</p> Signup and view all the answers

Post of substitution crown should have thickness:

<p>1-1,2 mm. (A)</p> Signup and view all the answers

Substitution crown by Ricimond is indicated:

<p>When a root is situated above the gingiva and has thin walls. (B)</p> Signup and view all the answers

Substitution crown by Iliana-Marcosean is represented by:

<p>Crown, post and lay. (E)</p> Signup and view all the answers

Preparation of root canal for substitution crown is carried out till the level:

<p>2/3 lengths. (E)</p> Signup and view all the answers

Direct method of taking impression from root canal requires:

<p>Taking wax reproduction of root canal and crown of the tooth directly in the oral cavity. (E)</p> Signup and view all the answers

Simple substitution crown made in one visiting is indicated:

<p>As temporal micro prosthesis. (E)</p> Signup and view all the answers

The term " hard tooth tissues lesion" means:

<p>Various disorders of structure, form, color. (B)</p> Signup and view all the answers

Compulsory paraclinical examination at hard tooth tissue lesion:

<p>X-ray examination. (E)</p> Signup and view all the answers

Restauration of partial DL consists in application of:

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

Covering method of extensive DL consists in application of:

<p>Artificial crowns. (D)</p> Signup and view all the answers

Method of replacement of tooth crown at its complete absence consists in application of:

<p>Substitution construction. (A)</p> Signup and view all the answers

Second class of hard tooth tissue lesions by V.Burlui includes:

<p>Hereditary defeats. (A)</p> Signup and view all the answers

Flashcards

What do occlusal curves by Spee and Monson-Willson serve for?

These curves are responsible for maintaining balance in the dental arches, crucial for proper function during side-to-side jaw movements.

What are the medial and distal angles of lower central incisors?

They are straight, resembling a ruler compared to the obtuse angles seen in other teeth.

Define occlusal jaw's relationships.

This is the highest point where the condyles (jaw bones) fit into the articular fossae (sockets) without any forceful movement, setting the foundation for other jaw movements.

What defines central occlusion?

In this position, the condyles are situated slightly forward from the occlusal jaw relationship, creating a stable starting point for chewing.

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What is the typical measurement of physiological interocclusal space?

This space normally measures between 2.0 and 3.0 mm and provides room for smooth jaw movements and allows the tongue to position itself correctly.

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How does the polymerization of hotcure acryl work?

Hot cure acrylics are cured in a water bath that is steadily heated to boiling point and then maintained at a boil for 30 to 45 minutes. This precise process ensures a strong and durable final product.

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Describe the classical method of hotcure acrylic use.

In this method, a wax pattern is created, meticulously packed and then replaced with the acrylic mixture, allowing for a precise, detailed final denture.

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For what purpose are coldcure plastics used?

They are specifically designed for the production of temporary prosthetic devices, providing a temporary solution while a more permanent prosthesis is being created.

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How are modern composites used for modeling prosthesis?

Contemporary composites are carefully applied drop by drop directly onto the model, allowing for intricate detail and precise layering to achieve the desired shape and form of the prosthetic device.

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What type of prosthetic devices is the acryl "Carbodent" applied for?

Carbodent is commonly used to manufacture temporary artificial dental prostheses, offering a temporary replacement while a more permanent option is created.

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What kind of prosthetic devices is the acryl "Sinmа-74" applied for?

Sinmа-74 is used to create fixed artificial prostheses, providing a durable and permanent solution for restoring missing or damaged teeth.

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What is the correct ratio of monomer and polymer in acryl preparation?

The ideal ratio is 1:2 - one part monomer to two parts polymer.

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What type of impression materials are Kromopan, Elastic, and Ypen?

These belong to the irreversible hydrocolloid group, meaning they turn into a solid gel and can't be reversed back to their liquid state.

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How are alginate impression materials used for taking impressions?

They are used in one stage, making the process efficient and relatively straightforward.

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What type of impression materials are Xantopren, Optosil, and Dentaflex?

These impression materials belong to the siliconic group, known for their accuracy, detail, and dimensional stability.

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What does preparation of the oral cavity for prosthetic treatment involve?

This involves the preparation of the oral cavity to eliminate any infections or problems that could hinder prosthetic treatment, ensuring a clean and healthy environment for the procedure.

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Define hard tooth tissues lesions by Burlui that appear after teeth eruption.

These lesions are caused by external factors after the tooth has erupted into the mouth, often related to trauma, wear, or poor dental hygiene.

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Define hereditary defects of hard tooth tissues by Burlui.

These are defects that are present at birth, inherited from parents, and often affect the structure and strength of the tooth.

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What material is recommended for restoring occlusal tooth surface with a small destruction?

When the amount of occlusal surface destroyed is small, between 0.2 and 0.3 mm2, alloys of metals are usually recommended because they provide strength and durability for the restoration.

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When are cast crowns indicated for restoration?

They're indicated for lateral teeth as they provide excellent support and stability for these teeth, ensuring optimal function and long-term durability.

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How much of the natural tooth crown should be grinded down for a ceramic crown?

When preparing a tooth for a ceramic crown, approximately one-third of the natural tooth crown height should be grinded down, creating a smooth, even surface for the crown to fit onto.

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Describe the modern technique of manufacturing aesthetic composites crowns.

In this technique, the composite is built up directly on the model, layer by layer, creating a multi-layered effect, allowing for the precise blending of colors and shades to achieve the desired aesthetic outcome.

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When are combined metal-ceramic and metal-acrylic artificial crowns indicated?

These crowns are frequently used in the reconstruction of partial adentia, serving as small bridge-like structures that span gaps between teeth.

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What is the proper thickness of the metallic skeleton in metal- ceramic artificial crown?

The metallic skeleton should be thin, measured between 0.3 and 0.4 mm. This ensures that the crown is strong, yet light and aesthetically pleasing.

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How thick should the aesthetic part of a metal-ceramic crown be?

The aesthetic part, typically made of ceramic or acrylic, needs a specific thickness between 0.8 and 2 mm. This allows for the crown to be strong and aesthetically pleasing while still preserving a natural look.

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Where are the borders of an equatorial artificial crown located?

At the equatorial region of the tooth, the crown's borders are positioned, seamlessly meeting the natural contours of the tooth. This ensures a snug fit and prevents irritation of the gums.

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When is a telescopic artificial crown indicated?

This type of crown is often used in removable prosthesis, acting as a strong and durable element that helps to hold the prosthesis securely in place.

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What are the specific requirements for preparing the occlusal surface of a tooth for a metal fused ceramic or metal-acrylic crown?

When preparing a tooth for a metal fused ceramic or metal-acrylic crown, it is essential to create a space between the crown and the opposing teeth, measuring 1-1.5 mm, while preserving the natural contours of the occlusal surface.

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Why is starting tooth preparation from the occlusal surface advantageous?

Starting the tooth preparation process by working on the occlusal surface first provides a clear view and allows for a more straightforward preparation of the proximal surfaces.

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When are partial artificial crowns, 4/5, indicated for use?

These partial crowns are specifically designed for premolars, offering a strong and aesthetically pleasing solution when the tooth is missing a significant portion.

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When are equatorial artificial crowns indicated for use?

Equatorial crowns are primarily used on molars, providing a durable and efficient solution for restoring the occlusal surfaces of these teeth.

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When are aesthetic Jacket ceramic or composite artificial crowns indicated?

Aesthetic Jacket ceramic or composite crowns are ideal for frontal teeth with a high crown, ensuring both a natural appearance and a strong, durable restoration.

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How is the cervical line prepared for cast crown manufacturing?

At the cervical line, also known as the neck of the tooth, the preparation should have a shoulder, creating a flat, even surface for the crown to rest upon.

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What is the depth of proximal grooves in teeth prepared for 4/5 artificial crowns?

The proximal grooves, located on the sides of the tooth, should have a depth of 0.5 to 0.8 mm when preparing for a 4/5 artificial crown. This allows for a strong, secure connection of the crown.

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How deep should the edge of a metal stump crown be positioned into the dental-gingival sulks?

When designing a metal stump crown, the edge of the crown should be positioned just slightly into the gum line, about 0.2-0.3 mm deep. This ensures a proper fit without irritating the gums.

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How much of the natural tooth crown should be left after preparation for a metal- ceramic crown?

For a metal-ceramic crown, the remaining intact portion of the tooth should constitute two-thirds of the natural tooth crown height. This provides adequate retention and support for the crown to maintain its strength and longevity.

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At what angle should the vertical surfaces of a tooth be prepared for a Jacket, metal-ceramic, or metal-acrylic artificial crown?

The vertical surfaces of the tooth, those facing towards the front and back of the mouth, should be prepared at a slight angle to the occlusal surface, usually between 2 and 10 degrees. This helps to ensure parallel walls for the crown and facilitates a proper fit.

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What is the width of the shoulder in the cervical region of a Jacket ceramic crown?

The width of the shoulder in the cervical region, where the crown meets the gum line, for a Jacket ceramic crown should measure about 0.8-1.2 mm. This creates a secure foundation for the crown and ensures a natural esthetic appearance.

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What is the recommended interocclusal space after preparation for a Jacket ceramic crown?

After preparing the tooth for a Jacket ceramic crown, the space between the crown and the opposing teeth, called the interocclusal space, should be between 1.5-2.0 mm. This space allows for proper chewing movements and avoids any interference between the crown and the opposing teeth.

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How should the preparation of a tooth under a Jacket acryl or composites crown be performed?

The preparation of the tooth under a Jacket acryl or composites crown follows a similar approach to preparing it for a ceramic crown, requiring precision to ensure a proper fit and aesthetic outcome.

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What type of dental bur is used for removing interfering surfaces of an acryl crown?

A spherical dental bur, with its rounded shape, is ideally suited for removing any areas on the internal surface of the acryl crown that interfere with the crown's fit on the prepared tooth. This smooths out those areas.

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How are interfering areas on the internal surface of an acryl crown determined?

The areas on the internal surface of the artificial acryl crown that may interfere with its fit on the prepared tooth are identified using articulation paper, a thin sheet of paper that leaves a mark showing where the crown contacts the opposing teeth or other parts of the mouth.

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Study Notes

Prosthodontic Department "I. POSTOLACHI" TESTS

  • Final examinations for III-year students in Prosthodontic Dentistry
  • Information relates to tests and procedures for the final examinations

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Prosthodontic Dentistry Final Exam III Year Students PDF

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This quiz covers the final examination procedures and tests for third-year students in the Prosthodontic Dentistry program. Assess your knowledge on key topics relevant to your final assessment and ensure you're well-prepared for the challenges of the examination.

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