Fixed Partial Denture Chapter 10 Flashcards
(108 cards)
1
Q
What is a conventional bridge?
A
An appliance replacing one or more teeth that cannot be removed by the patient.
2
Q
What is a minimum-preparation bridge?
A
Involves attaching pontics via a metal wing to the unprepared or minimally prepared lingual and proximal surfaces of adjacent teeth.
3
Q
What type of bridge can be removed by the patient?
A
A removable bridge.
4
Q
What does an implant-retained prosthesis rely on?
A
Osseo-integrated implants.
5
Q
What is a Transmucosal abutment (TMA)?
A
The part of the implant that attaches to the fixture and passes through the gingival tissues to the mouth.
6
Q
What are the indications for replacing missing teeth?
A
- Appearance
- Ability to eat
- Occlusal stability
- Speech
- Feeling of ‘completeness’
- Orthodontic retention
- Restoring occlusal vertical dimension (OVD)
7
Q
True or False: A removable bridge replaces soft tissue.
A
False.
8
Q
What is a disadvantage of replacing missing teeth?
A
- Damage to tooth and pulp
- Secondary caries
- Failures
9
Q
What is a fixed–fixed bridge?
A
A bridge that has a rigid connector at both ends of the pontic.
10
Q
What is a cantilever bridge?
A
A bridge that provides support for the pontic at one end only.
11
Q
What is a spring cantilever bridge?
A
A bridge restricted to the replacement of upper incisor teeth, supported by a long metal arm.
12
Q
What are the four basic designs of conventional bridges?
A
- Fixed–fixed bridge
- Fixed–movable bridge
- Cantilever bridge
- Spring cantilever bridge
13
Q
What materials are commonly used for retainers?
A
- Base metal alloys
- All-metal retainers
- Metal–ceramic
14
Q
What is the primary advantage of minimum-preparation bridges?
A
The pulp is not put at risk from the preparation.
15
Q
What is a major retainer?
A
A retainer that must be retentive and covers the whole occluding surface of the tooth.
16
Q
What is the purpose of pontics in a bridge?
A
- Restore appearance
- Stabilize occlusion
- Improve masticatory function
17
Q
What is the ridge surface of a pontic?
A
The surface that is most difficult to clean and has a considerable influence on appearance.
18
Q
What is a wash-through pontic?
A
A pontic that makes no contact with soft tissues and is the easiest to clean.
19
Q
What is the primary material used for minimum-preparation retainers?
A
Base metal alloys.
20
Q
What is the disadvantage of minimum-preparation bridges?
A
- Increased thickness of the tooth
- Plaque accumulation at the margin
- Unpredictable longevity
21
Q
What are the five surfaces of a pontic?
A
- The ridge
- The occlusal
- The approximal
- The buccal or labial
- The lingual or palatal
22
Q
What is the function of the occlusal surface of a pontic?
A
To withstand occlusal forces.
23
Q
Fill in the blank: The traditional all-ceramic bridge was limited by its relatively poor _______.
A
strength.
24
Q
What is the design of choice for non-parallel abutments?
A
Two separate minimum-preparation cantilever bridges.
25
What is the purpose of the embouchure in wind instrument players?
To form the proper supply of air to the instrument.
26
What does the term hybrid design refer to in the context of bridges?
A bridge with a combination of conventional and minimum-preparation retainers.
27
What is another term for a wash-through pontic?
HYGIENIC and SANITARY
## Footnote
Wash-through is considered more descriptive.
28
What is a key characteristic of the wash-through pontic?
Makes NO CONTACT with soft tissues
## Footnote
This feature makes it the EASIEST to clean.
29
In which region is the wash-through pontic most useful?
Lower molar region
30
What shape is the dome-shaped pontic also described as?
TORPEDO-SHAPED or BULLET-SHAPED
31
Where is the dome-shaped pontic commonly used?
Lower incisor and premolar regions; sometimes in the upper molar region.
32
What is the cleaning characteristic of the dome-shaped pontic?
Next easiest to clean
33
What design principle is associated with ridge-lap and modified ridge-lap pontics?
Buccal surface should look like a tooth; lingual surface cut away for cleaning access.
34
Why did the saddle pontic become less popular?
Concerns about ulceration and inflamed granulation tissue.
35
What is a notable advantage of the saddle pontic?
Feels more like a tooth than other designs
36
What is crucial for the occlusal surface of a pontic?
It should resemble the occlusal surface of the tooth it replaces.
37
What does the shape of the mesial and distal surfaces of the pontic depend on?
The design of the bridge
38
What should be ensured for good cleaning access in fixed-fixed bridges?
Open embrasure space between the connector and gingival tissue.
39
What is important about the approximal surface of a cantilever bridge?
Makes normal contact with the adjacent tooth or may have a diastema.
40
True or False: The buccal surface of a wash-through pontic resembles a natural buccal surface.
False
41
What is the primary consideration for the lingual surface of a pontic?
Designed based on the ridge surface.
42
What is the same choice of material for pontics and retainers?
The same materials are used.
43
What are the three types of fixed connectors?
* Cast
* Soldered or laser welded
* Porcelain
44
How are cast connectors made?
By wax patterns of retainers and pontics connected by wax.
45
When are soldered or laser welded connectors used?
When pontics and retainers are made separately.
46
What type of connectors are porcelain connectors used with?
ALL-PORCELAIN BRIDGES.
47
What design feature is critical for movable connectors?
Pontic cannot be depressed by occlusal forces.
48
What does the preparation of major and minor retainers typically involve?
Both preparations are within enamel.
49
What does the finger from the pontic resting on the minor retainer resist?
Axial forces on the pontic.
50
What is a fixed partial denture?
A dental prosthesis that is permanently attached to natural teeth or implants to replace missing teeth.
51
True or False: A fixed partial denture can be removed by the patient.
False
52
What are the main components of a fixed partial denture?
Abutments and pontics.
53
Fill in the blank: The primary purpose of a fixed partial denture is to restore _____ and function.
aesthetics
54
Which material is commonly used for the framework of fixed partial dentures?
Metal or porcelain.
55
What is the role of abutment teeth in a fixed partial denture?
They support and retain the prosthesis.
56
What is a pontic?
The artificial tooth in a fixed partial denture that replaces a missing tooth.
57
True or False: Fixed partial dentures can be used to replace multiple missing teeth.
True
58
What is one disadvantage of fixed partial dentures?
They require the alteration of healthy teeth.
59
When is a fixed partial denture indicated?
When a patient has one or more missing teeth and healthy abutment teeth.
60
What is the difference between a fixed partial denture and a complete denture?
A fixed partial denture is anchored to existing teeth, while a complete denture replaces all teeth in an arch.
61
Fill in the blank: The success of a fixed partial denture depends on the health of the _____ teeth.
abutment
62
What is the primary concern when preparing abutment teeth for a fixed partial denture?
Maintaining tooth vitality and structure.
63
What type of impression is commonly taken for fixed partial dentures?
A definitive impression.
64
True or False: Fixed partial dentures can be fabricated using CAD/CAM technology.
True
65
What is the role of the dental laboratory in the process of creating a fixed partial denture?
To fabricate the prosthesis based on the dentist's specifications.
66
What is a resin-bonded fixed partial denture?
A type of fixed partial denture that is bonded to the abutment teeth using resin.
67
Fill in the blank: The term 'pontic' refers to an artificial tooth that replaces a _____ tooth.
missing
68
Which dental professionals are involved in the placement of a fixed partial denture?
Dentists and dental technicians.
69
What is the significance of proper occlusion in fixed partial dentures?
It ensures functional bite and prevents excessive wear on the prosthesis.
70
True or False: Fixed partial dentures can be made entirely of acrylic resin.
False
71
What is the primary advantage of using porcelain in fixed partial dentures?
Aesthetic appearance that mimics natural teeth.
72
What is a conventional fixed partial denture?
A prosthesis that is anchored to natural teeth with crowns.
73
Fill in the blank: The _____ is the part of the fixed partial denture that connects the pontic to the abutments.
connector
74
What is the purpose of the try-in appointment for a fixed partial denture?
To evaluate fit, function, and esthetics before final cementation.
75
What is the main reason for failure of fixed partial dentures?
Poor oral hygiene leading to periodontal disease.
76
True or False: Fixed partial dentures require regular maintenance and check-ups.
True
77
What is the ideal contour of a pontic?
It should mimic the natural tooth and be polished for hygiene.
78
What are common complications associated with fixed partial dentures?
Crown loosening, caries, and periodontal issues.
79
Fill in the blank: The _____ of the fixed partial denture should not interfere with the occlusion.
design
80
Which type of fixed partial denture is often used in the anterior region for esthetic reasons?
Porcelain-fused-to-metal (PFM) fixed partial denture.
81
What is the significance of the margin in fixed partial dentures?
It affects the seal and longevity of the restoration.
82
What is the purpose of using temporary fixed partial dentures?
To protect the abutment teeth while the final prosthesis is being fabricated.
83
True or False: Fixed partial dentures can be used in patients with severe bruxism.
False, they may not be suitable due to excessive wear.
84
What is the primary factor in determining the type of material used for a fixed partial denture?
Location of the prosthesis and esthetic requirements.
85
What is the role of dental cement in fixed partial dentures?
To bond the prosthesis to the abutment teeth.
86
Fill in the blank: A fixed partial denture is also known as a _____ bridge.
dental
87
What is the importance of periodontal health in patients receiving fixed partial dentures?
To ensure stability and longevity of the prosthesis.
88
What is the function of the occlusal surface in a fixed partial denture?
To provide proper occlusion during chewing.
89
What is the advantage of using gold for fixed partial dentures?
Its strength and biocompatibility.
90
True or False: A fixed partial denture can be placed in a completely edentulous area.
False
91
What is the function of the retainer in a fixed partial denture?
To anchor the prosthesis to the abutment teeth.
92
Fill in the blank: A fixed partial denture requires a _____ impression for accurate fit.
final
93
What is the impact of misalignment in fixed partial dentures?
It can lead to discomfort and uneven wear.
94
What is a cantilever fixed partial denture?
A type of bridge that is supported on one side only.
95
True or False: Fixed partial dentures can be used in patients with active periodontal disease.
False
96
What are the indications for a fixed partial denture?
Missing one or more teeth with healthy adjacent teeth.
97
What is the primary concern when selecting abutment teeth for a fixed partial denture?
Their health and structural integrity.
98
Fill in the blank: The _____ is the area where the fixed partial denture contacts the abutment tooth.
margin
99
What is the typical lifespan of a well-maintained fixed partial denture?
5 to 15 years.
100
What is the role of the dental hygienist in the care of fixed partial dentures?
To educate patients on proper oral hygiene and maintenance.
101
True or False: Fixed partial dentures can be made from a single piece of material.
True
102
What is the importance of patient education regarding fixed partial dentures?
To ensure proper care and maintenance for longevity.
103
Fill in the blank: The _____ of a fixed partial denture must be smooth to prevent plaque accumulation.
surface
104
What is an implant-supported fixed partial denture?
A fixed partial denture supported by dental implants instead of natural teeth.
105
What is the primary difference between a fixed partial denture and a removable partial denture?
A fixed partial denture is permanently cemented in place, while a removable partial denture can be taken out by the patient.
106
True or False: A fixed partial denture can improve speech and chewing function.
True
107
What is the recommended maintenance for fixed partial dentures?
Regular dental check-ups and proper oral hygiene.
108
What is the purpose of occlusal adjustment in fixed partial dentures?
To ensure proper bite and prevent discomfort.
