Single and Overdenture Flashcards
What is the most common situation for a single denture?
Max CD with mandibular natural teeth
Natural teeth generate a ____ force against opposing denture
Greater
Natural teeth do or do not move in function as a denture does?
Do not
______ is routine resorption pattern following extraction of teeth resulting in a smaller maxilla when compared to the dentate arch
Centripetal resorption
The maxilla resorbs in what 2 directions?
Up and inward
A horizontal arch discrepancy is created when the maxillary arch ____ and becomes ____ in anteroposterior direction
Narrows; shorter
A ____ may be required to direct occlusal forces to the bearing area
Crossbite
The _____ includes the following:
- Max ant tissue mobility / hyperplasia
- Inflammatory palatal hyperplasia (IPH)
- Maxillary tuberosities enlarged
- Mandibular posterior bone resorption
- Mandibular anterior teeth supraerupted
Combination Syndrome
What are the 5 things included in the combination syndrome?
- Max ant tissue mobility / hyperplasia
- Inflammatory palatal hyperplasia (IPH)
- Maxillary tuberosities enlarged
- Mandibular posterior bone resorption
- Mandibular anterior teeth supraerupted
____ is the combination of the curve of spee and wilson; Concave in mand, convex in max
Curve of Monson
Curve of Monson is _____ in mand, ______ in max
Concave in mand, convex in max
What are the 3 ways to correct the occlusal plane of mandible to allow for single denture?
reduce
restore
remove
On a single denture, do you want interdigitation or cusp to cusp?
Interdigitation
Biting force of the natural dentition is approx ____ times that of the denture wearers
5 times
Which arch would require a resilient liner or osseointegrated implants for a single denture?
Mandible
Mandibular anterior resorbs ____ times as fast as maxillary anterior
4 times
T/F: Rapid bone loss emphasizes the need for any procedure which will slow the bone loss
True
Overdentures provide ______ support and soft tissue trauma is ______
increase; decreased
With overdentures, the stability of the denture is _____
Increased
With overdentures, maintenance of periodontal _____ improves chewing efficiency which increases mastication
proprioception
When a conventional denture would have a poor prognosis, when opposing an arch of natural teeth, and when combination syndrome is a factor, you use an _____
overdenture
The disadvantages of ______:
- cost more than regular denture and need RCT
- denture is bulkier in some areas
- denture is more subject to fracture
- caries/perio issues are a possibility
Overdentures
Which tooth is the best for abutment?
Canines
_____ therapy is recommended for most overdenture abutments
Root canal therapy
Does tooth mobility eliminate a tooth for use as an abutment?
No
Is mobility increased or decreased when a crown is reduced on the tooth?
Decreased
____ are best for abutments because of long roots, amenable to RCT, and strategic location at corner of arches
Canines
After 5-6 years, ____ % of abutment teeth were lost due to periodontal disease, caries, endodontic complications due to poor hygiene
10%
____ gel can be used for daily application on abutment teeth
Fluoride gel
What types of restorations are best for abutments?
Cast gold copings and amalgam
____ around abutment is caused by:
- movement of denture base
- Poor oral hygiene
- Excess space in prosthesis (dead space)
Gingivitis
