Treatment Planning Flashcards
What are 2 good factors NOT to place implants?
- Lack of bone
2. Lack of restorative space
What are some patient limitations regarding implant placement?
- Surgical Risk
- Disease
- Hygiene
- Available Treatment Time
What are 4 indications for tooth replacement?
- Esthetics
- Phonetics
- Function
- Occlusal Stability
What are 9 factors in influencing selection of pros treatment planning?
- Length of Edentulous Span
- Distal Extension
- Complete Edentulism
4, Periodontal health - Radiographic Crown:Root Ratio
- Extensive Bone Loss of Residual Ridge
- Shortened Life Span Expectancy
- Caries Index/Oral Hygiene Limitations
- Patient Desires/Economic Consierations
For a short edentulous span think…
Implants/Fixed/Removable
For a medium edentulous space think…
Implants/Fixed
For a long edentulous space think…
Removable
When missing a single tooth you can restore with:
- Implant
- Conventional FDP
- Resin bonded FDP
- Removable Dental Prosthesis
Are single tooth implants successful?
Yes!
- 97% 10 years
- Low caries
- Improved hygiene
- Decreased abutment tooth loss
- Psychological Advantage
For the posterior what is the max amount of pontics you would desire?
2
For the anterior what is the max amount of pontics you would desire?
4
What is the most common cause of FDP failure?
Caries
- Mean life span is 10 years
- 15% abutments will require RCT
How much distance would one want between implant and tooth?
1.5 - 2 mm
How much distance would one want between implants?
3 mm
For implant retained FDP - what are the advantages of splinting them together?
- Eases fabrication/delivery
- Strong sytem
If abutments are parallel then you do not have to splint them together - this aids in hygiene…
What are indications for Removable Dental Prosthesis?
- Long spans
- Correct Large Ridge Defects
- Minimally Invasive
- Proven Cost Effective Treatment
- Endodontically treated abutments 4x more likely to fail
What happens to bite force when one wear an RDP?
- Bite force decreased from 200 psi to 50 psi
2. Masticatory efficiency decreased
What are some consequences of using an RDP?
- Abutment teeth need constant repair (60% at 5 years, 80% at 10 years)
- Increased mobility, plaque, BOP and caries on abutment teeth.
- Abutment tooth loss of 44% within 10 years
- Accelerated bone loss in edentulous regions
What are some considerations for a prosthesis extending from 7-10?
- Arch curvature
- Cantilever Length
- Residual Ridge
- Pontic Site
- Canine Stability
For D extension what are your treatment options?
- RDP
- Removable Partial Overdenture
- Implant Retained FDP
For D extension, RDP is most conventional treatment - you will have success if you have…
- Proper survey & design
- Adequate Abutments
- Broad Stress Distribution
- Well Adapted Bases
- Altered Cast Impression
What are some advantages of a removable partial overdenture?
- Stability/Retention
- Bone Preservation
- Diminished Forces to Abutment Teeth
- Improved Tissue Health
What 2 things must be present when evaluating a patient for a FDP/distal extension?
- Sufficient Bone
- Enough Restorative Space
-assuming occlusion is stable-
What 3 options can you deliver to a patient with complete edentulism?
- Conventional Complete Dentures
- Overdentures
- Fixed-Detachable (Hybrid)
For overdentures, what percent are unstable on the mandible?
50%!
What is a hybrid prosthesis?
4-5 implants between mental foramina
No soft tissue contact
Implants placed on the mandibular arch better aid for the speech of the patient
For a hybrid prosthesis, you can cantilever up to how much?
1.5 to 2 X AP spread
Are implants successful in patients whose periodontal disease has been controlled?
Yes!
What is the optimum crown to root ratio?
2:3
What is the minimal crown to root ratio?
1:1
What are 3 advantages of an RDP?
- Predictable
- Cost-Effective
- Esthetic
For a shortened life expectancy what is likely the best treatment option?
Removable :(
For patients with caries index/oral hygiene limitations what is your go to option?
Removable IS the only appropriate option
If you could travel in the future an look side to side to what removable appliances people were wearing - what would you see?
Implant Supported RDPs/Dentures