Outcome 2 - Assist with removable denture procedures

Question 1

What is the removable partial dentures appointment 1?

Answer 1

Records including preliminary impressions for study casts

Question 2

What is the removable partial dentures appointment 2?

Answer 2

Preparation and Final Impressions
Recording shade

Question 3

What is the removable partial dentures appointment 3?

Answer 3

Wax try in

Framework constructed in lab with teeth set in wax is tried in for fit and occlusal relationship

Adjustments made to alignment of teeth and fit of metal framework

Question 4

What is the removable partial dentures appointment 4?

Answer 4

Delivery of Prosthesis
Completed partial denture returned from lab is tried in and necessary adjustments made

Question 5

what is the removable partial dentures appointment #5?

Answer 5

-Post delivery check

• partial denture checked for fit and tightness

-check for any areas of impingement

Question 6

How many appointments for partial removable dentures?

Answer 6

5 total

Question 7

How many appointments for full removable dentures?

Answer 7

6 total

Question 8

Appointment #1 for Full Removable Dentures

Answer 8

Records

Question 9

Appointment #2 for Full Removable Dentures

Answer 9

Final impressions

Question 10

Appointment #3 for Full Removable Dentures

Answer 10

Try-in of Baseplates and Occlusal Rims

Question 11

Appointment #4 for Full Removable Dentures

Answer 11

Wax Try In

Question 12

Appointment #5 for Full Removable Dentures

Answer 12

Delivery of Prosthesis

Question 13

Appointment #6 for Full Removable Dentures

Answer 13

Post delivery check - 2 to 3 days after delivery of dentures will check to ensure that the oral mucosa is tolerating the new denture and that patient is functioning properly with it

Question 14

Custom Trays: Self Curing Acrylic Resin - Advantages

Answer 14

-strong and easily adaptable
-provides a custom fit

Question 15

Custom Trays: Self Curing Acrylic Resin - Disadvantages

Answer 15

Hazardous due to volatile monomer
-requires careful handling and proper ventilation

Question 16

Custom Trays: Self Curing Acrylic Resin - Procedure Highlights

Answer 16

-Polymerization begins upon mixing monomer and polymer
-Initial cure stage reached within minutes, allowing for shaping
-Final set achieved when material cannot be shaped and heat diminishes
-Tray fabrication should occur 24 hours before use

Question 17

Custom Trays: Light-Cured Resin - Advantages

Answer 17

-Does not contain hazardous monomer
-Low shrinkage, providing excellent adaptation
-Allows for precise impressions in various dental situations

Question 18

Custom Trays: Light-cured resin - Procedure Highlights

Answer 18

-Polymerization activated by curing light
-Material remains workable until exposed to light
-Quick hardneing after light exposure

Question 19

Custom Trays: Vacuum-Formed Thermoplastic Resin - Advantages

Answer 19

-Versatile for various dental applications
-Different types of plastic and gauges for specific needs

Question 20

Custom Trays: Vacuum-Formed Thermoplastic Resin - Procedure Highlights

Answer 20

-Uses heat and vacuum to conform resin to diagnostic model
-Heavy-gauge plastic for impression trays requiring spacer and handle
-Lighter gauges for provisional coverage, vital bleaching trays, and mouth guards

Question 21

Criteria for Creating Custom Impression Trays

Answer 21

1. Rigidity and Support - tray must be rigid enough to support impression materials during placement and removal
2. Fit & Adaptation - should fit well to the arch, maintaining patient comfort without impinging on surrounding tissues
3. Accuracy - must provide accurate adaptation to the edentulous or partially edentulous arch
4. Material Distribution - maintain an even distribution of 3-4 mm of impression material between the tray and teeth
5. Coverage
   Max - cover teeth, hard palate, extend slightly beyond gingival margin (not into mucobuccal fold)
   Mand - Cover teeth, extend beyond gingival margin (not into mucobuccal fold)

Question 22

Custom Trays: Undercuts

Answer 22

Fill undercuts with wax or molding material to facilitate easy tray removal

Question 23

Custom Trays: Tray Outlining

Answer 23

Outline margins of the cast where the tray will be seated, extending over the attached gingiva and beyond the last tooth in the quadrant

Question 24

Custom Trays: Spacer

Answer 24

Place spacer material (baseplate wax, moist paper towel, or non stick molding material) to create room for impression material

Question 25

Custom Trays: Separating Medium

Answer 25

-Apply separating medium on the prepared cast and surrounding area to aid in tray removal

Question 26

Custom Trays: Handle

Answer 26

Attach a handle at the anterior of the tray, near the midline, facing outward and parallel to occlusal surfaces for easier placement and removal

Question 27

Custom Trays: Spacer Removal

Answer 27

Remove spacer after tray formation, clean tissue side using a small brush, and ensure complete removal after final set

Question 28

Custom Trays: Finishing

Answer 28

-Smooth rough edges to prevent itssue injury, either manually or using equipment like a laboratory lathe -Rinse and disinfect the tray according to the manufacturer's instructions

Question 29

Common impression materials used for dentures:

Answer 29

1. Alginate 2. Polyvinyl Siloxane (PVS) 3. Polysulfide 4. Polyether 5. Hydrocolloids

Question 30

Advantages of Alginate

Answer 30

One of the most widely used materials for preliminary impressions. It is easy to use, relatively inexpensive, and sets quickly

Question 31

Advantages of Polyvinyl Siloxane (PVS)

Answer 31

PVS materials are popular for their accuracy and stability. They come in various viscosities to accomodate different impression techniques

Question 32

Advantages of Polysulfide

Answer 32

Polysulfide materials have been used for many years in dentistry. They offer good flexibility and tear strength, making them suitable for detailed impressions.

Question 33

Advantages of Polyether

Answer 33

Are known for their dimensional stability and accuracy. They have a realatively short working time but offer excellent detail reproduction.

Question 34

Advantages of Hydrocolloids

Answer 34

Both reversible (agar) and irreversible, were traditionally used for impressions due to their ability to flow around teeth and soft tissues. However, they are less commonly used today due to their drawbacks compared to newer materials.

Question 35

How are impression materials chosen?

Answer 35

The choice of impression materials depends on factors such as the specific clincal situation, the preference of the dentist, patient comfort, and the accuracy required for the denture fabrication process.

Question 36

What are tissue conditioners?

Answer 36

They are soft, pliable materials used in dentistry to temporarily cushion and provide relief to oral tissues, particularly mucosa and underlying structures like the alveolar ridge. They are commonly used in prosthodontics, especially during the fabrication and adjustment phases of dentures.

Question 37

Tissue conditioners serve several purposes..

Answer 37

1. Temporary cusioning 2. Tissue Healing 3. Tissue conditioning 4. Evaluation

Question 38

Tissue Conditioners - Temporary Cushioning

Answer 38

They provide a soft cushioning effect between the denture base and underyling tissues, reducing pressure points and friction that can cause discomfort and soreness

Question 39

Tissue Conditioners - Tissue Healing

Answer 39

Tissue conditioners can help promote healing of irritated or inflammed oral tissues by providing a protective barrier and allowing the tissues to recover without further trauma from the denture

Question 40

Tissue Conditioners - Tissue conditioning

Answer 40

They help improve the adaptation of the denture to the oral tissues by reshaping or conditioning the mucosa, especially in cases where there are signifcant changes in the shape or contour of the residual ridge

Question 41

Tissue Conditioners - Evaluation

Answer 41

Tissue conditioners allow for the evaluation of tissue response and denture fit before finalizing the permanent denture base

Question 42

What do Tissue Conditioners Consist of?

Answer 42

Tissue conditioners typically consist of a powder component, usually a plastic polymer such as polymethyl methacrylate (PMMA), and a liquid component, which is often a plasticizer or softening agent. When mixed, they form a soft, pliable material that can be moulded to fit the contours of the oral tissues.