Surface Composition in Osseointegration

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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?

Compressive load (D) Signup and view all the answers

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

3-7 mm (B) Signup and view all the answers

What is the typical range of lengths for dental implants?

8-15 mm (C) Signup and view all the answers

What is the definition of osseointegration?

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

Who is credited with coining the term 'osseointegration'?

Professor Branemark (C) Signup and view all the answers

What was Professor Branemark initially researching when he discovered osseointegration?

Blood flow (A) Signup and view all the answers

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

Titanium (A) Signup and view all the answers

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

Leventhal (A) Signup and view all the answers

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

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

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

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

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

Alkaline phosphatase (C) Signup and view all the answers

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

No cupping or bone loss (B) Signup and view all the answers

What is the function of PGE2 prostaglandin in osseointegration?

Required for osteoblast activity (D) Signup and view all the answers

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

Stability is increased (A) Signup and view all the answers

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

To roughen the surface (B) Signup and view all the answers

What is the primary advantage of immediate implant placement?

Very quick and reduced overall treatment time (C) Signup and view all the answers

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

All of the above (D) Signup and view all the answers

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

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

What is the ideal angulation for implant placement?

Parallel to the long axis of the forces (D) Signup and view all the answers

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

3mm (C) Signup and view all the answers

What is the primary factor in selecting an abutment?

All of the above (D) Signup and view all the answers

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

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

What is the significance of osteocalcin in osseointegration?

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

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

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

What is the consequence of cupping in dental implants?

Bone loss around the implant (C) Signup and view all the answers

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

It allows for earlier restorative treatment (B) Signup and view all the answers

What is the significance of TGF-β1 in osseointegration?

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

What is the minimum required interarch space for removable implants?

12 mm (B) Signup and view all the answers

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

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

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

To assess the skeletal relationship (B) Signup and view all the answers

What is the advantage of using a virtual surgical guide?

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

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

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

What is the minimum required bone width for implant placement?

1.5 mm (C) Signup and view all the answers

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

Decreased retention and poor hygiene (D) Signup and view all the answers

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

To preserve the soft tissue support (C) Signup and view all the answers

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

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

What is the effect of supraeruption on the interarch space?

Decreased interarch space (C) Signup and view all the answers

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

1.61% (D) Signup and view all the answers

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

Type of prosthesis used (A) Signup and view all the answers

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

Uncontrolled diabetes (B) Signup and view all the answers

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

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

What is a consideration in treatment planning for implant systems?

Occlusal scheme of the patient (D) Signup and view all the answers

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

Smoking habits of the patient (D) Signup and view all the answers

What is the primary drawback of using cement retained implants?

Risk of bone loss and periodontitis (A) Signup and view all the answers

What is the minimum interocclusal space required for fixed restorations?

7 mm (A) Signup and view all the answers

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

Easily retrievable (C) Signup and view all the answers

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

Easier to obtain an esthetic result (C) Signup and view all the answers

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

Screw joint (C) Signup and view all the answers

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

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