Implant 1

Question 1

Subperiosteal and transosteal implants uses ?

Answer 1

are designed primarily to anchor dentures in completely edentulous patients

Question 2

Edosteal implants shape ?

Answer 2

1. By shape into = blade form (plate form) and root form

Blades are wedge shaped or rectangular in cross section

Question 3

What’s the diameter of root shaped endosteal implants ?

Answer 3

Root forms are 3 to 6 mm in diameter and 8 to 20 mm long,
often with external threads

Question 4

What’s The one-stage endosteal ?

Answer 4

Placed in the bone and to immediately project through mucosa into the oral cavity

Question 5

Whts two-stage procedure ?

Answer 5

two surgical procedures

1.The implant is placed in bone to the level of the cortical plate and the oral mucosa is sutured over it; this is left for a prescribed healing period

2. The mucosa is reflected from the superior surface of the implant, and an extension collar or abutment that projects into the oral cavity is fastened to the implant

Question 6

What are the Absolute contraindications for implants ?

Answer 6

based on immediate surgical and aesthetic risks, are limited to the presence of acute illness, uncontrolled metabolic disease, and pregnancy

Question 7

What’s the other contraindications for implant ?

Answer 7

*Abnormal bone metabolism
*Poor oral hygiene
*Have undergone previous irradiation of the implant site
*Suspicion that hygiene will continue to be inadequate is a relative contraindication to implant placement
Some patients may not be able to improve their hygiene

Question 8

What’s The threaded root shaped implants ?

Answer 8

straight and tapered

A one-piece implant design has been developed that combines
the threaded implant body, the transmucosal abutment, and the pillar for crown cementation in a single piece

Question 9

In clinical evaluation what should the dentist have to evaluate , and in what help the palpitation ?

Answer 9

1. The dentist determines whether bone is adequate and identifies anatomic structures that could interfere with ideal implant placement
2. Visual inspection and palpation allow the detection of flabby excess tissue, bony ridges, and sharp underlying osseous formations
3. Radiographic Evaluation is also necessary(CT)

Question 10

When the dentist have to use Diagnostic waxings and surgical templates ?

Answer 10

are essential when implants are planned as part of a full-mouth reconstruction or when the anterior esthetic zone is restored

Question 11

What’s surgical templates ?

Answer 11

Guide template used to assist the proper surgical placement and angulation of dental implants

Question 12

To maximize success, the implant should be placed where ?

Answer 12

entirely within bone and away from significant anatomic structures

Question 13

How much ideal bone structure the implant need and what’s the benefits ?

Answer 13

Ideally 10 mm of vertical bone dimension and 6 mm of horizontal

** Placement at these dimensions prevents encroachment on anatomic structures and allows 1.0 mm of bone on both the lingual and facial surfaces of the implant

Question 14

How much minimum distance between 2 implants and why we should have it ?

Answer 14

3mm

This space is needed to ensure bone viability between the implants and to allow adequate oral hygiene once the restorative procedures are complete

Question 15

What should the ideal implant location most provide ?

Answer 15

1. Implant location dictates the appearance, contour, and long-term function of the prosthesis
2. To prevent damage, staying at least 1.0 mm away from the adjacent natural tooth is essential, but staying as close to the natural tooth as possible is also important

3.acceptable contours can be created by the restorative dentist

Question 16

To minimize harmful lateral forces, the long axis of the implant should be positioned where ?

Answer 16

in the central fossa of the restoration

Question 17

How to place the implant to ensure the optimal emergence profile of the restoration?

Answer 17

1. Superoinferior placement
2. superior surface of the implant should be 2.5 to 3.0 mm directly inferior to the emergence position of the planned restoration, particularly when the restoration is to be located in the anterior esthetic zone

Question 18

What happen If the lengthening is too short ?

Answer 18

The restoration will be overcontoured or look unnatural

Restoration size must always be considered during the treatment planning stage so that a properly sized implant is placed in the ideal location

Question 19

Why soft tissue panning is important in esthetic zone , how it most look , and which condition destruct this appearance ?

Answer 19

1. To give maximum esthetic soft tissue contour .
2. Done by Achieving a completely formed papilla between the implant restoration and the adjacent teeth
3. If the interdental tissue and underlying bone have already been lost before implant placement, it may not be possible to achieve ideal papillary contours

Question 20

The choice of abutment size depends on what in esthetic zones ?

Answer 20

1. the vertical distance between the fixture base and opposing dentition
2. the existing sulcular depth
3. esthetic requirements in the area being restored

Question 21

For acceptable appearance in the posterior part of the maxilla or mandible fixtures may require what ?

Answer 21

margin termination at or below the gingival crest

Question 22

For an anterior maxillary crown which material and how much subgingival needed to create the proper emergence profile and appearance ?

Answer 22

2 to 3 mm of subgingival porcelain at the facial gingival margin

Question 23

In which cases Framework fit should be checked on multiple-unit restorations ?

Answer 23

If abutment margins are no more than 1 mm subgingival

Question 24

What does Periodontal probing of the sulcus after the healing cap is removed serve ?

Answer 24

reveals the space available for subgingival extension and can be performed at the time of abutment placement or after a period of tissue healing around an interim restoration

When these measurements have been made, the correct abutment is attached to the implant

Question 25

Why all of this consecration about abutment is important ?

Answer 25

The abutment length can have a dramatic effect on restoration contours

Question 26

Why does single tooth implant most used ?

Answer 26

Placement of the implant for both esthetics and biomechanical loading (to minimize screw loosening) is especially crucial

Question 27

What’s impression coping ?

Answer 27

1.Impression copings facilitate transfer of the intraoral location of the implant or abutment to a similar position on the laboratory cast.

2. With the transfer impression coping in place, an impression is made intraorally, after radiographs are taken to confirm complete engagement

Question 28

What’s impression coping classification ?

Answer 28

1. They may screw into the implant or onto the abutment and are customarily subdivided into two types: fixture and abutment
2. Both of these can be further subdivided into transfer (indirect) and pickup (direct) types