Biomechanics in Implant Dentistry Quiz
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Questions and Answers

What is the definition of biomechanics?

  • The study of the structure, function, and motion of biological systems at the cellular level. (correct)
  • The study of genetic engineering and biochemistry.
  • The study of the structure, function, and motion of biological systems at the organism level.
  • The study of plant biology and mechanical engineering.

Who is the author of the DMedSc doctoral thesis dissertation on injectable bioactive gelatin-hyaluronan-calcium phosphate (GH-CP) and its osteogenic potential for flapless guided bone regeneration (GBR)?

  • Dr. Alexander RM
  • Dr. Matteo Colombo
  • Prof. Young K. Kim (correct)
  • Prof. Herbert H

What does the yellow flag under the left corner signify in the text?

  • It represents a warning about potential hazards.
  • It signifies important exam guidelines.
  • It indicates a reference to additional reading material.
  • It indicates information that is not relevant for the exam. (correct)

What is the academic affiliation of Prof. Young K. Kim?

<p>Clinical Assistant Professor at NYUCD, Dept. of Prosthodontics (C)</p> Signup and view all the answers

What is the relationship between crown height and implant diameter known as?

<p>C/I ratio (B)</p> Signup and view all the answers

Which connection system offers high resistance to non-axial loading and minimal rotational 'slop'?

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

What may occur with resorbed peri-implant crestal bone due to internal tapered connections?

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

What is used to favorably distribute stresses in implant dentistry?

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

What is the concept introduced by Kim YK in 2022 as a replacement for A-P spread?

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

What is PIAAR-ant (anterior cantilever) calculated as?

<p>(Pros-AA-ant) / (Pros-AA-ant + Plat AA) (C)</p> Signup and view all the answers

What does the C/I ratio tend to preserve over time?

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

Which force on dental implant abutments is magnified with greater crown heights?

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

What is the risk associated with internal tapered connections due to extensive load applied to the walls?

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

What is the distance between implant platforms and the most anteriorly distant implant known as?

<p>A-P spread rule (A)</p> Signup and view all the answers

What can the PIAAR-lat (lateral cantilever) calculation be used for?

<p>To reduce clamping force requirements (D)</p> Signup and view all the answers

Which concept is introduced by Kim YK in 2022 as a replacement for A-P spread?

<p>Prosthesis-Implant Arch Area Ratio (PIAAR) (B)</p> Signup and view all the answers

What is the recommended minimum abutment height for cement-retained crowns in implant dentistry?

<p>4mm for all types of restorations (B)</p> Signup and view all the answers

What is the suggested vertical space requirement for splinted implant-retained overdentures?

<p>15-20mm (A)</p> Signup and view all the answers

Is the crown-to-root ratio an applied concept in implant dentistry?

<p>No, it is not an applied concept (C)</p> Signup and view all the answers

What has been shown to achieve a long-term survival rate with increased Crown-to-Implant (C/I) ratio?

<p>Controlling occlusion and parafunctional habits (A)</p> Signup and view all the answers

What type of implants have shown success similar to long implants in terms of survival?

<p>Short implants with moderately rough surfaces (D)</p> Signup and view all the answers

What is the recommended minimum abutment height for all-ceramic restorations in implant dentistry?

<p>2mm (B)</p> Signup and view all the answers

What type of restorations require a minimum of 1mm abutment height in implant dentistry?

<p>All-metal restorations (D)</p> Signup and view all the answers

What has shown less bone loss with time in implant dentistry?

<p>Greater crown-to-implant ratios (A)</p> Signup and view all the answers

In what type of procedures, short implants are considered as a viable option to long implants?

<p>When additional surgical augmentation procedures are considered (B)</p> Signup and view all the answers

What influences the force on the abutment screw?

<p>Crown-to-Implant (C/I) ratio (C)</p> Signup and view all the answers

What is the process of osteogenesis initiated by?

<p>Signaling molecules or chemoattractants (D)</p> Signup and view all the answers

Which factor is included in the prosthodontic occlusal reference plan?

<p>Implant-crown ratio (D)</p> Signup and view all the answers

What is another term for peri-implant endosseous healing?

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

Which type of bone is considered 'poor quality' according to the text?

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

What does Misch's classification Type II bone require for osseointegration?

<p>Approximately 4 months (D)</p> Signup and view all the answers

What principles are involved in computer-guided prosthetically-driven Biomechanics in implant dentistry?

<p>Osteogenesis, peri-implant endosseous healing, and implant features &amp; surface science (A)</p> Signup and view all the answers

What is involved in the cellular prosthodontic occlusal reference plan?

<p>Inter-arch space and splinting (A)</p> Signup and view all the answers

What does Class IV bone have more of compared to Class I bone?

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

What type of cells are involved in osteo-conduction according to the text?

<p>Implanted scaffolds attract osteogenic cells and neovascularization (D)</p> Signup and view all the answers

Which process involves platelet activation and directed osteogenic cell migration?

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

Which factor is NOT included in the prosthodontic occlusal reference plan?

<p>Peri-implant endosseous healing (A)</p> Signup and view all the answers

Which bone type has less blood supply according to Misch's classification?

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

What process relies on the recruitment and migration of osteogenic cells to the implant surface through the residue of the periimplant blood clot?

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

What triggers directed osteogenic cell migration and leads to de novo bone formation?

<p>Initiation of platelet activation (C)</p> Signup and view all the answers

Which protein initiates calcium phosphate nucleation for further mineralization?

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

What occurs followed by the assembly of collagen fibers in the process of de novo bone formation?

<p>Crystallization of elongated calcium phosphates (C)</p> Signup and view all the answers

What influences bone matrix-related gene expression and enhances bone apposition?

<p>Implant surface topography (A)</p> Signup and view all the answers

Which surface treatment involves sandblasting with aluminous oxide and acid etching with hydrogen sulfate or hydrogen chloride, protected from air/carbon contamination via submerging in saline solutions?

<p>SLA (Sandblasted, large grit, acid-etched surface treatment) (D)</p> Signup and view all the answers

What has been shown to result in greater alkaline phosphatase activity, indicating enhanced bone formation and integration?

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

Which process results in the formation of a mineralized interfacial matrix equivalent to that seen in the cement line in natural bone tissue?

<p>De novo bone formation (C)</p> Signup and view all the answers

What occurs amongst collagen-free calcified layers with non-collagen proteins?

<p>Crystallization of elongated calcium phosphates (C)</p> Signup and view all the answers

Which type of surface treatment involves titanium plasma-spray?

<p>Titanium plasma-spray (D)</p> Signup and view all the answers

What excretion by osteogenic cells initiates calcium phosphate nucleation for further mineralization?

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

What influences bone apposition?

<p>Implant surface topography (C)</p> Signup and view all the answers

What is the main focus of implant dentistry?

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

How can primary stability of an implant be assessed?

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

What are the classifications for implant placement protocols?

<p>Same-day placement, delayed placement, and various loading protocols (D)</p> Signup and view all the answers

What is the minimum mesiodistal distance between implants and adjacent teeth at the bone level?

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

What should be considered for the orofacial implant position?

<p>Optimize screw channel location (C)</p> Signup and view all the answers

What is the purpose of sinking the implant shoulder subcrestally?

<p>To optimize screw channel location (C)</p> Signup and view all the answers

What is the role of enhanced osteogenesis in osseointegration?

<p>To improve osseointegration (C)</p> Signup and view all the answers

How does insertion torque differ from primary stability?

<p>Primary stability measures the maximum force during implant placement (C)</p> Signup and view all the answers

What are the loading protocol classifications for implants?

<p>Immediate restoration or non-functional loading (D)</p> Signup and view all the answers

Flashcards

Enhanced Osteogenesis

A type of surface treatment for dental implants that promotes better bone integration compared to conventional TPS (titanium plasma spray).

Osseointegration

The process by which a dental implant integrates with the surrounding bone tissue.

Titanium Plasma Spray (TPS)

A surface treatment for dental implants that is less effective at promoting bone integration than Enhanced Osteogenesis.

Biomechanics

The forces that act on the implant and the surrounding bone tissue, influencing implant stability and long-term success.

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Primary Stability

The initial stability of an implant in the bone, immediately after placement.

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Insertion Torque

The maximum force applied during implant placement.

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Subjective Assessment

A method to assess primary stability based on subjective evaluation of the implant's movement.

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Maximum Insertion Torque

A method to assess primary stability based on the measurement of the force required to screw the implant in.

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Resonance Frequency Analysis

A method to assess primary stability based on the vibration frequency of the implant.

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Implant Placement Protocol

The timing of implant placement relative to tooth extraction or other procedures.

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Same-day Placement

A type of implant placement protocol where the implant is placed immediately after tooth extraction.

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Delayed Placement

A type of implant placement protocol where the implant is placed after a period of healing following tooth extraction.

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Loading Protocol

The process of applying forces or loads to the implant after placement.

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Immediate Restoration

A type of loading protocol where the implant is restored immediately after placement.

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Immediate Loading

A type of loading protocol where the implant is restored immediately and subjected to functional forces.

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Progressive Loading

A type of loading protocol where the implant is restored immediately, but the forces applied are gradually increased over time.

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Delayed Loading

A type of loading protocol where the implant is not loaded for a period of time after placement, typically until sufficient bone integration has occurred.

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Placement Protocol Classifications

Classifications based on implant design and placement characteristics.

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Type 1 Implant

A type of implant classification based on specific design and placement characteristics.

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Type 2 Implant

A type of implant classification based on specific design and placement characteristics.

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Type 3 Implant

A type of implant classification based on specific design and placement characteristics.

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Type 4 Implant

A type of implant classification based on specific design and placement characteristics.

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Dimensional Planning

The process of planning the size, shape, and position of the implant to ensure optimal esthetics and function.

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Inter-implant and Tooth Distance

The minimum distance between the implant and adjacent teeth.

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Bone Thickness

The thickness of the bone surrounding the implant.

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Orofacial Implant Position

The position of the implant in relation to the facial and oral structures.

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Screw Channel Location

The position of the opening for the implant screw.

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Implant Shoulder

The part of the implant that sits above the bone.

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Subcrestal Implant Placement

The placement of the implant shoulder slightly below the bone surface.

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Prosthodontic Principles

The principles used to design and construct dental restorations.

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Mesiodistal Distance

Minimum distance between implants and neighboring teeth.

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Bone Level Distance

The distance between the implant and the adjacent tooth at the level of the bone.

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Study Notes

  • The use of Enhanced Osteogenesis on SLA (Surface Layer Analysis) surfaces results in better osseointegration than conventional TPS (titanium plasma spray)
  • Less bone resorption was observed with Enhanced Osteogenesis after a 3-year follow-up compared to TPS
  • Biomechanics plays a crucial role in implant dentistry
  • Primary stability and insertion torque are important factors in implant dentistry, but they are not the same
  • Primary stability refers to the initial stability of an implant in the bone, while insertion torque is the maximum force applied during implant placement
  • Primary stability can be assessed through subjective assessment, maximum insertion torque, or resonance frequency analysis
  • Implant placement protocols include same-day placement, delayed placement, and various loading protocols
  • The placement protocol classifications include Type 1, Type II, Type III, and Type IV implants
  • The loading protocol classifications include immediate restoration or non-functional loading, immediate loading, progressive loading, and delayed loading
  • The dimensional planning for dental implants includes considerations for minimum distances between implants and adjacent teeth, minimum bone thickness, and orofacial implant position.
  • The orofacial implant position should be chosen to optimize the screw channel location, and the implant shoulder should be sinked around 1~1.5mm subcrestally with a sloping crest for prosthetic components.
  • Prosthodontic principles should be applied in the surgical placement of dental implants.
  • The minimum mesiodistal distance between implants and adjacent teeth at the bone level is 1.5mm and 3mm for adjacent implants.
  • The bone layer for implant positioning should be at least 1-2mm thick.
  • The orofacial implant position and axis should be chosen to optimize screw channel location, with the anterior position being behind the incised edge and the posterior position at the center.
  • The coronoapical implant position requires the implant shoulder to be sinked around 1~1.5mm subcrestally and the crestal bone to be in a sloping edge.

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Test your knowledge on biomechanics in implant dentistry with this quiz. Learn about topics such as primary stability, insertion torque, bone resorption, and implant geometry.

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