Prosthetic Options For implant Dentistry

Question 1

What are the two main prosthetic options in implant dentistry?

Answer 1

1. Removable implant-supported prosthesis (RP)
2. Fixed prosthesis/restoration (FP)

Question 2

What are the advantages of a removable implant-supported prosthesis?

Answer 2

1. Can be removed at night for nocturnal parafunction.
2. Fewer implants required.
3. Easier long-term maintenance and home care.
4. Less expensive than fixed prostheses.

Question 3

What are the advantages of a fixed prosthesis?

Answer 3

1. Feels more like natural teeth.
2. Less food entrapment.
3. Requires less maintenance.
4. Durable and provides better psychological benefits.

Question 4

What are Misch’s three fixed prosthesis (FP) options?

Answer 4

FP1: Replaces only the crown.

FP2: Replaces the crown and part of the root.

FP3: Replaces the crown, gingiva, and part of the edentulous site.

Question 5

What are Misch’s two removable prosthesis (RP) options?

Answer 5

RP4: Overdenture fully supported by implants.

RP5: Overdenture supported by both implants and soft tissue.

Question 6

What are the two main implant impression techniques?

Answer 6

Open-tray (Pick-up) Impression: Posts are embedded in the impression material and removed with it.

Closed-tray (Transfer) Impression: Uses tapered impression copings, ideal for single implants or multiple parallel implants.

Question 7

What are the common materials used for implant impressions?

Answer 7

Polyvinyl siloxane: Stable and user-friendly.

Polysulfide: Useful for deeper sub-gingival areas.

Polyether: Hydrophilic and dimensionally stable.

Condensation silicone: Stable with good tear resistance.

Question 8

What are the functions of a provisional restoration in implantology?

Answer 8

Enhances aesthetics and stabilization.

Guides healing of peri-implant tissues.

Helps evaluate phonetic and aesthetic aspects.

Serves as a diagnostic tool for final restoration.

Question 9

What are the types of provisional restorations before implant loading?

Answer 9

Removable partial denture: Acrylic partials.

Fixed tooth-supported: Archwire-supported pontic or resin-bonded pontic.

Fixed implant-supported: Transitional implants.

Question 10

What is the difference between immediate restoration and immediate loading?

Answer 10

Immediate restoration: Prosthesis is fixed within 48 hours without full occlusal contact.

Immediate loading: Prosthesis is fixed within 48 hours with occlusal contact.