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Fixed Prosth 2 > Treatment Planning and Biomechanics > Flashcards

Treatment Planning and Biomechanics Flashcards

1
Q

-A dental prosthesis definitively attached to remaining teeth or to dental
implants, which replaces one or more missing teeth.

A

Fixed partial denture (Bridge)

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2
Q

– Natural tooth or implant serving as attachment for Fixed Partial Denture

A

Abutment

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3
Q

– Extra-coronal restoration cemented to abutment

A

Retainer

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4
Q

– Artificial tooth suspended from abutments

A

Pontic

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5
Q

– Rigid (or non-rigid) connecting pontic and retainers

A

Connector

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6
Q

– The site of the alveolar bone and its covering soft tissues that remains after tooth
loss.

A

Edentulous Ridge

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7
Q 
When teeth have been missing for 
a long time, extreme closure of the 
\_\_\_\_\_\_\_\_ can occur 
which requires more extreme 
treatment planning and for the 
general dentist, likely a referral to 
a prosthodontist for treatment of 
this complexity.
A

inter-occlusal distance

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8
Q

Indications for _________:
-Long edentulous spans
-No distal abutment
-Multiple Edentulous spaces
-Abnormal abutments – Tipped, divergent or
few abutments
-Periodontally weakened primary abutments
(Bridge abutments compromised)
-Severe loss of tissue/bone in residual ridge

A

Removable Partial Denture:

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9
Q

Indications for _______

  • To replace function of missing teeth
  • To stabilize occlusion and keep teeth from drifting and extruding
  • To create esthetics and phonetics

Need Properly distributed abutments
Abutment on both ends of the edentulous space
Span length falls within structural limits
Straight alignment of restoration (slight variations)
Abutment strength
Abutments need to be restorable
Peridontally sound and stable
No questionable pathology (PARL, non-vital)
Occlusal harmony

A

Fixed partial denture

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10
Q

Contraindications for _______:
Excessive loss of alveolar ridge
Difficultly cleaning
Difficult to make esthetic

Possibly able to correct to some degree with bone graft/augmentation with  periodontal 
surgery
Abutments not restorable
Short clinical crown
Heavily restored already
Abutments are periodontally compromised
Loss of bone
Crown to root ratio
Span between abutments too long
***Virgin or minimally restored abutments? Prefer to pursue implant options to preserve these 
potential abutment teeth.
A

Fixed Partial Denture

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11
Q

Current PA radiographs (less than
___ months old) to confirm health of
abutments.

A

6 months

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12
Q

________ is a prerequisite for any fixed prosthodontic
restorations
-Need a zone of attached tissue
- No mobility
-Patient home care adequate
Additionally – Crown to root ratio, Root shape and configuration,
Periodontal ligament area all need to be assessed and evaluated.

A

Periodontal health

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13
Q

What is the optimum crown:root ratio?

A

2:3

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14
Q

What is the. minimum crown:root ratio for fixed restorations?

A

1:1

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15
Q

Exception to Crown to root ratio
guidelines:
If opposing occlusal forces are ______
such as:

Artificial teeth (Full denture, RPD)
Periodontally compromised  opposing 
teeth
A

diminished

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16
Q

For periodontal root configuration, are regular or irregular root forms better for abutments for FPD?

A

Irregular

17
Q 
\_\_\_\_\_\_:  The root surface 
area (embedded in bone) of the 
abutment teeth should be equal 
or surpass that of the teeth being 
replaced with pontics.
A

Ante’s Law :

18
Q

General principle – any FPD replacing more than ___ posterior teeth
has guarded prognosis

A

2 posterior teeth

19
Q

______ arch has longer crowns and less tooth inclinations

and therefore can occasionally be acceptable.

A

Maxillary

20
Q 
When teeth are not perfectly aligned 
(which is nearly every time), a \_\_\_\_\_\_\_ 
can be used to identify the path of 
insertion and to help you create the 
appropriate planes in tooth preparation to 
create a path of insertion.
A

surveyor

21
Q

Partially Edentulous Patient –___________:
-Also known as Marilyn Bridge
-Conservative enamel only preparation
-Used for single missing tooth with slight to moderate tissue
resorption in missing tooth area
-Only areas of light occlusal stresses and good alignment with
neighboring teeth
-Not indicated for deep vertical overlaps (Deep bite)
-Excellent option in younger patients where age contraindicates
implant or bridge
-Most often used to replace missing maxillary lateral incisors

A

Resin-bonded

Fixed Partial Prosthesis

22
Q

A fixed partial denture that has an abutment(s) at
one end with the pontic remaining unconnected
on the other end.

A

Cantilever Fixed Partial Prosthesis

23
Q

Indications of _____:

  • Implant abutments are soundly integrated
  • Implant parallelism
  • Availability of bone to support implant
  • Patient demonstrates adequate home care
A

Implant supported FPD

Fixed Prosth 2 (12 decks)

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