s10 - Supra-structure components

Question 1

What are the components of prosthetic soft tissue shaping?

Answer 1

Healing abutments, provisional restorations, final abutments, soft tissue sculpting techniques.

Question 2

What is the function of healing abutments in soft tissue shaping?

Answer 2

Shape the gingiva during healing to form a proper emergence profile.

Question 3

What is the role of provisional restorations in soft tissue shaping?

Answer 3

Help contour soft tissue for optimal esthetics and gingival architecture.

Question 4

How do final abutments contribute to soft tissue shaping?

Answer 4

Maintain soft tissue form established by healing abutments and provisionals.

Question 5

What are healing abutments?

Answer 5

Transgingival components placed to shape gingiva after uncovering the implant.

Question 6

What are pre-fabricated healing abutments?

Answer 6

Manufacturer-made in various sizes and shapes for general use.

Question 7

What are customized healing abutments?

Answer 7

Prefabricated ones modified with composite to shape gingiva specifically.

Question 8

What are CAD/CAM healing abutments?

Answer 8

Digitally designed abutments milled to precise soft tissue shape.

Question 9

What is the clinical purpose of healing abutments?

Answer 9

Guide soft tissue healing and emergence profile.

Question 10

When are healing abutments placed?

Answer 10

After the implant is uncovered during the second-stage surgery.

Question 11

What are non-contoured prosthetic abutments?

Answer 11

Abutments needing full preparation to fit the final prosthesis.

Question 12

What are contoured abutments?

Answer 12

Pre-prepared by manufacturer, needing minor adjustments.

Question 13

What are castable abutments?

Answer 13

Waxed and cast to custom shape in a lab.

Question 14

What are CAD/CAM abutments?

Answer 14

Digitally designed and milled for custom fit.

Question 15

What is platform switching?

Answer 15

Using narrower abutments on wider implants to preserve bone and soft tissue.

Question 16

What is the role of abutments in implant prosthodontics?

Answer 16

Connect implant to the prosthesis and shape soft tissue.

Question 17

What are screw-retained restorations?

Answer 17

Restorations attached using a screw through the crown.

Question 18

What are the advantages of screw-retained restorations?

Answer 18

Retrievable, easy to tighten, no cement residue.

Question 19

What are the disadvantages of screw-retained restorations?

Answer 19

Limited by implant angulation, may be unesthetic.

Question 20

What are cement-retained restorations?

Answer 20

Restorations cemented over abutments.

Question 21

What are the advantages of cement-retained restorations?

Answer 21

Better esthetics, not dependent on angulation.

Question 22

What are the disadvantages of cement-retained restorations?

Answer 22

Risk of excess cement, hard to retrieve.

Question 23

What cements are recommended for cement-retained restorations?

Answer 23

Temporary cement or zinc phosphate cement.

Question 24

What are risks of subgingival excess cement?

Answer 24

Soft tissue recession, bone loss, peri-implantitis.

Question 25

What is the function of provisional restorations?

Answer 25

Maintain esthetics, function, evaluate occlusion, phonetics, shape soft tissue.

Question 26

What is immediate provisionalization?

Answer 26

Placing a provisional at the time of implant placement.

Question 27

What is the role of provisionals in progressive bone loading?

Answer 27

Gradually increase load to adapt bone before final prosthesis.

Question 28

Why are provisionals used for esthetic evaluation?

Answer 28

To assess soft tissue contours, phonetics, and smile design.

Question 29

What are superstructures in removable prosthodontics used for?

Answer 29

Retaining overdentures, fixed options, maxillofacial prostheses.

Question 30

What are bar-clip attachments?

Answer 30

Bar splinted to implants, clip retained in denture base.

Question 31

List advantages of bar-clip attachments.

Answer 31

High retention, implant splinting, good stability.

Question 32

List disadvantages of bar-clip attachments.

Answer 32

Mucosal hyperplasia, bulkiness affects function.

Question 33

What are magnetic attachments?

Answer 33

Magnet in denture + keeper on implant.

Question 34

Advantages of magnetic attachments?

Answer 34

Easy hygiene, low lateral stress, ideal for geriatrics.

Question 35

Disadvantages of magnetic attachments?

Answer 35

Limited rotation, may be bulky.

Question 36

What are ball & socket attachments?

Answer 36

Ball abutment with matrix in denture for retention.

Question 37

Advantages of ball & socket attachments?

Answer 37

Easy maintenance, good retention, patient acceptance.

Question 38

What are locator attachments?

Answer 38

Low-profile abutments with resilient caps for retention.

Question 39

Advantages of locator attachments?

Answer 39

Allow implant angulation, easy use, different heights available.

Question 40

List biological failures in implant prosthodontics.

Answer 40

Peri-implantitis causing soft tissue and bone loss.

Question 41

List mechanical failures in implant prosthodontics.

Answer 41

Screw loosening/fracture, implant or abutment fracture.