Week 10: Aftercare & Relines

Question 1

what are 2 things or ways that cause build up (calculus) on dentures

Answer 1

1. Ill fitting denture base
2. improper or lack of cleaning by patient

Question 2

what causes traumatic ulcers and cheek biting in new dentures

Answer 2

Ulcers: Pressure areas or occlusal errors

Treatment: use PIP to identify the are that needs to be relieved.

Cheek Biting
-Usually due to violation of the neutral zone. (posterior teeth placed too far buccaly

Treatment: contouring or resetting of teeth.

Question 3

what is the cause and treatment of denture irritation hyperplasia

Answer 3

Cause:
- Poor fit,
- Denture flanges digging into mucosa (chronic)

Treatment:
- Adjust or replace the denture
- Temporary reline (decrease irritation)
- surgical excision of the hyper plastic tissue

Question 4

what are common causes of xerostomia

Answer 4

• Hormonal changes
• Radiation
  -Medication
• Sjorgens syndrome

Question 5

How does xerostomia effect dentures

Answer 5

affects retention, Soft tissue health, decrease self cleaning, increase soreness, denture stomatitis (oral thrush)

Question 6

What is the guidelines and time frame for mastication to become normal for new denture patients

Answer 6

6-8 weeks, take it slow as it will take time for muscles to learn and adapt. May require food that does not need chewing.

Question 7

what allows for the success of wearing dentures

Answer 7

-patients attitude and acceptance towards the dentures and the clinician

• education and information during the process
• managing the adjustment period
• follow up maintenance

Question 8

what are relines and when are they used. How often are they done

Answer 8

What:
a process that is used to renew/replace the fitting surface of the denture when it is no longer retentive or close fitting

when:
- denture loses suction or becomes lose
- place and food build up on fitting surface
- loss of weight
-every 2 years
-6months after immediate denture placement

Question 9

what are the two ways to perform a reline and their corresponding advantages and disadvantages

Answer 9

indirect: (Laboratory Does it)

advantages
- Controlled accurate process
- technician able to finish to a high standard
- high strength
- dense porosity free acrylic

Disadvantages
- slower process, patient without denture for a period of time

Direct (chair side)

advantages
- quick
- patient isn’t without denture

disadvantages
- messy work
- hard to correct mistakes
-acrylic is porous
- dentist needs to polish to high standard.

Question 10

what type of preparation needs to be one to the denture prior to performing. reline.

Answer 10

sulcus extensions trimmed 2mm

cut away any potential undercuts

Question 11

what types of impression materials do you use for relines

Answer 11

Zoe, polyether, Medium PVS

Question 12

when doing repairs of dentures, when are impressions needed

Answer 12

-repairing clasp replacing

• teeth adjacent to abutment teeth
• where parts of the base are missing

Question 13

what are causes of a midline fracture and how is it fixed

Answer 13

causes:
- reduced support on alveolar ridges (bone loss)
- posterior teeth set buccal to alveolar ridge
- denture opposes natural dentition (hard bite)
denture opposes fixed implant prosthetic

how to fix
- Reline, change position of teeth, thicken and strengthen denture.