Surface Composition in Osseointegration

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Questions and Answers

What is a key goal of treatment planning for implant systems?

  • Minimize and evenly distribute mechanical stress in the implant system (correct)
  • Decrease the quality of bone around the implant
  • Increase the surface area of the implant
  • Maximize mechanical stress in the implant system

What type of load is most destructive to the bone-implant interface?

  • Tensile load
  • Compressive load
  • Shear load (correct)
  • Lateral load

Which of the following factors affects the load-bearing capacity of an implant?

  • Only the quality of bone surrounding the implant
  • Only the surface texture of the implant
  • The implant structure, surface, and quality of bone (correct)
  • The type of dental cement used

What is the most favorable type of load for cortical bone?

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

What is the typical range of diameters for currently available implants?

<p>3-7 mm (B)</p> Signup and view all the answers

What is the typical range of lengths for dental implants?

<p>8-15 mm (C)</p> Signup and view all the answers

What is the definition of osseointegration?

<p>A direct structural and functional connection between ordered, living bone and the surface of a load-carrying implant (D)</p> Signup and view all the answers

Who is credited with coining the term 'osseointegration'?

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

What was Professor Branemark initially researching when he discovered osseointegration?

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

What material was used in the chambers that led to the discovery of osseointegration?

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

Who published an article titled 'Titanium, a metal for surgery' in 1951?

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

What was the observation that led to the identification of osseointegration as a real biologic phenomenon?

<p>Bone growing in intimate contact with the chambers (B)</p> Signup and view all the answers

What is the purpose of having a roughened surface on an implant?

<p>To increase the surface area for bone to implant contact (C)</p> Signup and view all the answers

Which of the following biomarkers is an early marker for osteoblast differentiation?

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

What is the consequence of using the one-stage approach in implant placement?

<p>No cupping or bone loss (B)</p> Signup and view all the answers

What is the function of PGE2 prostaglandin in osseointegration?

<p>Required for osteoblast activity (D)</p> Signup and view all the answers

What is the consequence of having a high thread pitch in the coronal aspect of an implant?

<p>Stability is increased (A)</p> Signup and view all the answers

What is the purpose of using a Titanium oxide surface treatment?

<p>To roughen the surface (B)</p> Signup and view all the answers

What is the primary advantage of immediate implant placement?

<p>Very quick and reduced overall treatment time (C)</p> Signup and view all the answers

What is the main concern with morphology of the socket in immediate implant placement?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of making an impression in restorative options?

<p>To make a digital or elastomeric model of the patient's mouth (D)</p> Signup and view all the answers

What is the ideal angulation for implant placement?

<p>Parallel to the long axis of the forces (D)</p> Signup and view all the answers

What is the minimum required distance from the implant platform to the gingival margin for a gradual transition?

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

What is the primary factor in selecting an abutment?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of roughening the surface of an implant?

<p>To increase surface area for bone to implant contact (A)</p> Signup and view all the answers

What is the significance of osteocalcin in osseointegration?

<p>It is a late marker for osteoblast activity (D)</p> Signup and view all the answers

What is the purpose of the thread pitch on an implant?

<p>To increase the stability of the implant in the critical healing phase (C)</p> Signup and view all the answers

What is the consequence of cupping in dental implants?

<p>Bone loss around the implant (C)</p> Signup and view all the answers

What is the advantage of using a roughened surface on an implant?

<p>It allows for earlier restorative treatment (B)</p> Signup and view all the answers

What is the significance of TGF-β1 in osseointegration?

<p>It enhances the mineralization and expression of bone-specific extracellular matrix proteins (C)</p> Signup and view all the answers

What is the minimum required interarch space for removable implants?

<p>12 mm (B)</p> Signup and view all the answers

What is the effect of increased space due to vertical bone loss on the implant?

<p>Better crown to root ratio and improved esthetics (A)</p> Signup and view all the answers

Why is it important to assess the maxillomandibular arch relationship in implant placement?

<p>To assess the skeletal relationship (B)</p> Signup and view all the answers

What is the advantage of using a virtual surgical guide?

<p>Less post-operative strain on the dentist and patient (C)</p> Signup and view all the answers

What is the purpose of a surgical guide in implant placement?

<p>To provide a precise reference for implant placement (D)</p> Signup and view all the answers

What is the minimum required bone width for implant placement?

<p>1.5 mm (C)</p> Signup and view all the answers

What is the consequence of decreased interarch space on the implant?

<p>Decreased retention and poor hygiene (D)</p> Signup and view all the answers

Why is it important to preserve keratinized tissue during implant placement?

<p>To preserve the soft tissue support (C)</p> Signup and view all the answers

What is the purpose of a team approach in implant placement?

<p>To address soft tissue management and surgical sequence (B)</p> Signup and view all the answers

What is the effect of supraeruption on the interarch space?

<p>Decreased interarch space (C)</p> Signup and view all the answers

What is the estimated failure rate for extra-short implants in the given study?

<p>1.61% (D)</p> Signup and view all the answers

What is a factor that affects the success of short implants according to the study?

<p>Type of prosthesis used (A)</p> Signup and view all the answers

What is a contraindication for implant placement according to the text?

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

What is a purpose of radiographic analysis in implant treatment planning?

<p>To evaluate the relationship of critical structures to the implant site (D)</p> Signup and view all the answers

What is a consideration in treatment planning for implant systems?

<p>Occlusal scheme of the patient (D)</p> Signup and view all the answers

What is a factor that can affect implant success through its effect on bone metabolism?

<p>Smoking habits of the patient (D)</p> Signup and view all the answers

What is the primary drawback of using cement retained implants?

<p>Risk of bone loss and periodontitis (A)</p> Signup and view all the answers

What is the minimum interocclusal space required for fixed restorations?

<p>7 mm (A)</p> Signup and view all the answers

What is the advantage of screw retained implants in terms of retrievability?

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

What is the primary advantage of cement retained implants in terms of esthetics?

<p>Easier to obtain an esthetic result (C)</p> Signup and view all the answers

What is the term used to describe the union of two parts tightened together by a screw?

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

What is the consequence of having a large degree of deviation in implant placement?

<p>Unfavorable forces and less space for restorative material (C)</p> Signup and view all the answers

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