Treatment planning Flashcards
Why do we use crowns in dentistry?
- They are a good way to restore severely broken down teeth
- They protect remaining tooth tissue on broken teeth
- They improve aesthetics
- The potentially last longer than direct restorations
What are the disadvantages associated with using crowns
- Financial cost
- Biological cos (may need to remove healthy enamel)
- Time consuming (takes several appointments)
- Technically demanding
- Difficult to get the aesthetics right
- Can effect tooth vitality
We use crowns to…
- Improve aesthetics for tooth wear patients
- Protect vulnerable teeth
- Be part of a bridge
- Support and retain and partial denture
How can crowns improve aesthetics?
Can Improve:
Tooth colour
Tooth shape
What is a bridge Pontic
The tooth that is being replaces by a bridge
What is a bridge abutment?
The crowned tooth
Why do crowns have a high biological cost?
Crown require a lot of preparation so you need to remove more tooth tissue from an already compromised tooth
This may involve removing healthy tooth tissue as well
For a full veneer crown (FVC) how much preparation is required?
Buccal margin: 0.5mm
Occlusal reduction: 1-1.5mm
Lingual margin: 0.5mm
For a metal ceramic crown (MCC) how much preparation is required?
Buccal margin: 1.2-1.5mm
Occlusion reduction: 1.5-2.5mm
Lingual preparation: 0.5mm
For an all ceramic crown (ACC) how much preparation is required?
Buccal margin: 1mm
Occlusion reduction: 1.5-2mm
Lingual margin 1mm
Rank FVC, MCC and ACC in terms of aesthetics (starting with the least)
Least aesthetic: FVC
MCC
Most aesthetic: ACC
What does FVC stand for?
Full veneer crown
What does MCC stand for?
Metal ceramic crown
What does ACC stand for?
All ceramic crown
Rank FVC, MCC and ACC in terms of strength (starting with the least)
Weakest: ACC
MCC
Strongest: FVC
Rank FVC, MCC and ACC in terms of biological cost (starting with the least)
Lowest biological cost: FVC
MCC
Highest biological cost: ACC
Rank FVC, MCC and ACC in terms of financial cost (starting with the least)
Cheapest: FVC
MCC
Most expensive: ACC
Name the different phases of a treatment plan
- Emergency phase
- Initial phase
- Corrective phase
- Advanced treatment phase
- Supportive phase
What is the aim of the initial phase of the treatment plan?
To establish a healthy oral environment
Give examples go treatments carried out in the INITIAL phase of treatment planning
- Diet diary
- Preventative advice
- Caries stabilisation
- OHI/ Supra gingival scale
- Removal of hopeless teeth
- Provisional/ immediate denture
Give examples go treatments carried out in the corrective phase of treatment planning
- Permanent restorations
- Endodontic treatment
- RSD
Give examples go treatments carried out in the advanced phase of treatment planning
- Cosmetic treatment
- Cast restorations
- Reorganise occlusion
Before placing a crown what should we do?
- Treat any existing caries
- Manage periodontal disease
- RCT is necessary
- Build up tooth with a core material
When placing a crown we must look at the T______ H_______
Tooth height
Why is it important that we evaluate the heigh of the tooth before starting our crown prep
The crown procedure WILL reduce the height of the tooth so we need to see if we have a shower tooth how much prep can be done to that tooth without exposing the pulp
BEFORE starting any crown prep treatment what should we take and why
Take a periodical radiograph to determine the health of the tooth and check for any periapical pathology
Give examples of materials we can use to build up a core in a teeth
- Amalgam
2. Composite
