Podcast
Questions and Answers
What type of bridge is preferred for long-span applications?
What type of bridge is preferred for long-span applications?
- Suspension bridge
- Cantilever bridge
- Arch bridge
- Fixed-fixed bridge (correct)
What is the primary function of resistance in a restoration?
What is the primary function of resistance in a restoration?
- To facilitate easy removal for adjustments
- To prevent dislodgement along the path of placement
- To enhance the aesthetic appeal of the restoration
- To ensure stability against dislodgement in non-placement directions (correct)
Which of the following is a primary benefit of fixed bridges?
Which of the following is a primary benefit of fixed bridges?
- Increasing the size of the dental arch
- Enhancing chewing efficiency
- Correcting abnormal oral conditions (correct)
- Providing temporary solutions for dental issues
Which of the following best describes a fixed-fixed bridge?
Which of the following best describes a fixed-fixed bridge?
What components make up a prosthesis as discussed?
What components make up a prosthesis as discussed?
How does resistance contribute to the overall effectiveness of a restoration?
How does resistance contribute to the overall effectiveness of a restoration?
In what way does stability in a restoration affect dental health?
In what way does stability in a restoration affect dental health?
What connector types are referenced in basic bridge designs?
What connector types are referenced in basic bridge designs?
What is a key characteristic of the fixed-fixed bridge design?
What is a key characteristic of the fixed-fixed bridge design?
Which statement about resistance in restorations is incorrect?
Which statement about resistance in restorations is incorrect?
What is a major reason not to use certain procedures for the lower arch?
What is a major reason not to use certain procedures for the lower arch?
What potential issue is associated with procedures in the lower arch?
What potential issue is associated with procedures in the lower arch?
For which connector designs are lower arch procedures generally advised against?
For which connector designs are lower arch procedures generally advised against?
Which factor contributes to the difficulty of lower arch procedures?
Which factor contributes to the difficulty of lower arch procedures?
What impact does plaque and calculus deposition have on dental procedures?
What impact does plaque and calculus deposition have on dental procedures?
What is a significant challenge when treating an uncooperative patient?
What is a significant challenge when treating an uncooperative patient?
Why might fixed partial dentures (FPDs) be less favorable compared to removable partial dentures (RPDs)?
Why might fixed partial dentures (FPDs) be less favorable compared to removable partial dentures (RPDs)?
What impact does a social problem have on the decision to use fixed partial dentures?
What impact does a social problem have on the decision to use fixed partial dentures?
What is an essential consideration before deciding on the type of denture to use?
What is an essential consideration before deciding on the type of denture to use?
How does the uncooperative nature of a patient impact the treatment approach?
How does the uncooperative nature of a patient impact the treatment approach?
What feature characterizes a spring cantilever bridge design?
What feature characterizes a spring cantilever bridge design?
In a spring cantilever design, where does the flexible bar terminate?
In a spring cantilever design, where does the flexible bar terminate?
Which teeth are typically involved in a spring cantilever bridge design with the pontic?
Which teeth are typically involved in a spring cantilever bridge design with the pontic?
What is the primary function of the rigid connector in a spring cantilever design?
What is the primary function of the rigid connector in a spring cantilever design?
Which statement is true regarding the flexible bar in a spring cantilever bridge design?
Which statement is true regarding the flexible bar in a spring cantilever bridge design?
What is a characteristic of a simple cantilever bridge design?
What is a characteristic of a simple cantilever bridge design?
Which statement is true regarding the pontic in a simple cantilever bridge?
Which statement is true regarding the pontic in a simple cantilever bridge?
In a simple cantilever bridge, where can the abutment tooth be located?
In a simple cantilever bridge, where can the abutment tooth be located?
Which of the following is NOT a feature of a simple cantilever bridge?
Which of the following is NOT a feature of a simple cantilever bridge?
What describes the relationship of a simple cantilever bridge and its retainers?
What describes the relationship of a simple cantilever bridge and its retainers?
Flashcards
Resistance
Resistance
How well a restoration stays in place and resists movement in any direction except the way it was placed.
Correcting abnormal oral conditions
Correcting abnormal oral conditions
Fixed bridges can be used to fix problems in our mouths such as missing teeth.
Uncooperative patient
Uncooperative patient
Patients who refuse to cooperate with treatment due to factors like lack of understanding, fear, or unwillingness.
Social problem with FPDs
Social problem with FPDs
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Fixed-fixed bridge
Fixed-fixed bridge
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Removable dental bridge
Removable dental bridge
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Dental prosthesis
Dental prosthesis
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Pontic
Pontic
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Abutments
Abutments
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Simple Cantilever Bridge
Simple Cantilever Bridge
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Abutment Tooth
Abutment Tooth
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Retainer
Retainer
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Span
Span
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Spring Cantilever Bridge
Spring Cantilever Bridge
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Lower arch & bridge
Lower arch & bridge
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Bridge connectors
Bridge connectors
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Plaque & calculus on bridges
Plaque & calculus on bridges
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Retainer of a bridge
Retainer of a bridge
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Bridge Connector
Bridge Connector
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Bridge design
Bridge design
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Palate
Palate
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Gum tissue stability
Gum tissue stability
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Study Notes
Fixed Partial Denture (Bridge)
- A prosthetic appliance used to replace one or more missing teeth, definitively attached to remaining teeth.
- Key components include:
- Bridge: The entire appliance.
- Retention: Prevents removal along the insertion path.
- Support: The abutment teeth's ability to bear occlusal loads.
- Resistance: The restoration's stability against dislodgement.
Purposes (Benefits) of Fixed Bridges
- Correct abnormal oral conditions.
- Restore mastication for full functional efficiency.
- Maintain the health of remaining teeth and prevent further injury.
- Restore appearance and aesthetics.
Indications (General)
- Psychological: FPDs are better tolerated compared to RPDs (especially for patients with conditions like epilepsy)
- Systemic: Conditions like epilepsy, where FPDs offer better strength and retention than RPDs.
- Orthodontic: Useful for stabilizing orthodontic treatment outcomes, especially when replacing missing lateral incisors after correcting diastema.
- Speech: FPDs offer a more comfortable fit, leading to reduced speech difficulty compared to bulky RPDs
- Periodontal: Stabilize teeth with minor mobility, preventing further movement and bone loss. Ensures mastication forces distribute correctly rather than overloading the tissues.
- Age: Recommended after 18, especially for the posterior region, in order to aid resilience of the periodontal tissue and address issues with fully erupted teeth.
Indications (Local)
- Healthy Abutments: Vital, adequately treated, and healthy teeth, with good crown-root ratios, periodontal health, and root configurations/angles.
- Suitable Abutment Teeth: Teeth adjacent to the edentulous space that require restoration.
- Unfavorable Abutment Angles: Useful to address severely tilted teeth, inappropriate for removable prostheses.
Contraindications (General)
- Uncooperative Patient: Difficulty reaching satisfactory results due to patient preferences.
- Social Problem: Patients may have difficulty with the more expensive cost of FPDs, or be unsatisfied with the final results.
- Occupation: Certain jobs, such as those involving contact sports, might not be suitable for FPDs due to the risk of fractures.
- Oral Hygiene: Poor oral hygiene is a contraindication as it may indicate a bad attitude towards dentistry, and may result to the patient not being sufficiently motivated for the treatment.
Contraindications (Local)
- Absence of Distal Abutment: Missing abutment at the distal area of the mouth, causing poor stabilisation of the prosthetic appliance.
- Considerable Bone Loss: Extensive bone loss in visible areas compromise the placement of dental bridges.
- Long Span: Bridges spanning across multiple missing teeth are more complicated and complex to implement
- Abutment Issues: Problems affecting the length, shape, caries, and periodontal support of the abutment teeth.
Advantages of Fixed Bridges
- Improved appearance and speech.
- Maintain occlusal stability.
- Provide periodontal splinting.
- Restore occlusal vertical dimension.
Disadvantages of Fixed Bridges
- Can induce tooth and pulp damage.
- Potential for secondary caries.
- Potential periodontal problems.
- High cost.
Comparison & Advantages of Fixed Bridges over RPDs
- More stable and comfortable (no acrylic base, flanges, or clasps)
- Improved aesthetics
- More stable occlusion (more uniform distribution of forces)
- Provide splinting action to limit tooth mobility.
- Easier cleaning (no removal for cleaning)
- No irritation of tissues and/or pressure on tissues
- Psychological advantages (more comfort than removable ones)
Classification of Dental Bridges
- Material based: Cast Metal, All-ceramic, Metal ceramic, Resin-veneered
- Location based: Anterior, Posterior
- Number of teeth based: Two units, Three units
- Tooth Reduction: Conventional (substantial reduction), Minimal (less reduction)
- Connectors: Fixed-fixed, Fixed-movable, simple cantilever, spring cantilever, or combination (complex/compound)
- Removable: Bridges that are supported by teeth, but can also be removed.
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