Final Test Review Flashcards
1
Q
How long can interim prostheses remain in place for?
A
From 2 weeks to 1 month
2
Q
What is an Inlay?
A
-does not include any cusps
-involves the proximal surface and occlusal surface
-stronger than a resin/amalgam restoration. Can be made out of metal (gold or porcelain)
-placed posterior
3
Q
What is an Onlay?
A
-cusps are involved
-involves atleast one cusp and most of the occlusal surface
-stronger than a resin/amalgam restoration. Can be made out of metal (gold or porcelain)
-placed posterior
4
Q
What is a Veneer?
A
Veener is a thin shell of tooth coloured-material. Used to improve esthetics due to chipping, excessive wear, heavy staining, to close diastema spacing
5
Q
What is a direct veneer
A
created directly in the patient’s mouth by applying resin material to the facial surface
6
Q
What is an indirect veneer?
A
created in the dental laboratory on the basis of an impression taken of the prepared tooth. Porcelain material is used not resin.
7
Q
What is a Crown?
A
Crowns are indirect restorations that replace severe damage tooth structure due to decay or fracture. Often done after root canal treatment. Crown is cemeneted permanently into place and cannot be removed by the patient. Various materials can be sued including metals (gold), porcelain, etc. Crown provides full coverage, adds strength to teeth.
8
Q
What types of Crowns are available?
A
Full Crown
Three-quarter Crown
Porcelain Fused to Metal
9
Q
What are Full Crowns?
A
-used when a tooth has decay so severe, or a fracture that reconstruction cannot be performed with the use of a direct restoration
-Completely covers the anatomic crown of an individual tooth. Provide full coverage to add strength to a tooth
-various materials can be used including metal, porcelain or combination of both
10
Q
What is a three-quarter crown?
A
Covers the anatomic crown of a tooth but facial or buccal portion is unchanged
11
Q
What is a PFM Crown?
A
Porcelain Fused to Metal / Gold
- full metal crown with outer surfaces covered with a layer of porcelain (for esthetic reasons) and inner layer covered with metal
- Metal is added for strength and to prevent crown from fractures due to heavy mastication (biting forces)
12
Q
What is a bridge?
A
- Bridge is an indirect restoration that replace either one or multiple teeth that are
missing within the same quadrant or sextant. - Bridge consists of a series of units joined together for greater strength.
- The bridge is cemented permanently into place and cannot be removed bythe
patient. - Various materials can be used including metals (gold), porcelain etc. Provides full
coverage, adds strength to teeth, replaces at least one missing tooth.
13
Q
What are the components of a fixed bridge?
A
Unit, Pontic and Abutment
14
Q
What is a Unit (bridge)?
A
Units are used to describe bridge. ( 4 unit or 3 unit, etc)
15
Q
What is a Pontic?
A
Missing tooth/artificial tooth
16
Q
What is the Abutment?
A
Tooth anchoring the bridge are referred to as Abutment. This tooth
should be stable and strong to withstands bridge forces. Outer layer of enamel
will be removed, tooth will be reduced in size all circumference (all directions) by
use of dental high-speed handpiece and bur.
17
Q
What types of fixed bridges are available?
A
Cantilever bridge
Maryland bridge
18
Q
What is a Cantilever Bridge?
A
“fifth wheel”
- does not have an abutment on one end
-various materials can be used including metal/gold porcelain
19
Q
What is a Mary land bridge?
A
“wings”
- consists of a pontic with wing like extensions from the mesial and distal sides on the LINGUAL
-bonding of these extensions to the lingual surfaces of the adjacent teeth supports the pontic. Various materials can be used including metal, gold or porcelain
20
Q
What is an implant supported indirect restoration?
A
-refers to artificial “root” replaced with the titanium component
-Titanium is anchored surgically into the bone
-implant supported indirect restoration incorporates principles from both fixed and removable prosthodontics in conjunction with the use of bone-anchored implants
21
Q
What type of implants are available?
A
Endosteal implant
Subperiosteal implant
Transosteal implant
22
Q
What is an endosteal implant?
A
The most common placed type of implant - surgically placed into jawbone
23
Q
What is a subperiosteal implant?
A
Placed under the periosteum and on top of the bone (indicated for patients who do not have sufficient alveolar ridge remaining to support the endosteal-type implant)
24
Q
What is a Transosteal implant?
A
Inserted through the inferior border of the mandible. (These implants are primarily used in patients with severely resorbed ridges)
25
Overview of a Crown Procedure - 3 appointments
1. First appointment involves: Records (x-rays/impressions for study models collected) and treatment
discussed, cost
2. Second appointment involves: Tooth shade selection, preliminary impressions (unless done in 1st
app), preparation of the area, final impressions, and placement of provisional coverage.
3. Third appointment involves: Involves the try-in, permanent cementation, and permanent
placement.
26
Indirect restoration/Fixed Prosthodontics - What happens during the 1st appointment?
1. Records (x-rays/impressions for study models collected, pictures, maybe face bow records and articulator are requested) and treatment discussed, cost
2. Send information to dental insurance prior
27
Indirect restoration/Fixed Prosthodontics - What happens during the 2nd appointment?
1. Medical/Dental History reviewed
2. Topical/Local placed
3. Ensure you have imprint of original tooth
3. Determine shade (under natural light)
4. Isolation placed
5. Dentist prepares tooth using carbride & diamond burs
6. Isolation Removed
7. Gingival retraction cord is placed to temporarily enlarge sulcus
8. Gingival retraction cord removed
9. final impression is taken / bite registration is taken
10. Temporary coverage is made and temporary cemented
11. POIG verbal & written
12. PARTS done
13. Patient is booked for delivery and cementation in approx 1 week
14. Dentist completes Lab Rx with details for the fabrication
15. Dental impressions are sent to lab
28
Indirect restoration/Fixed Prosthodontics - What happens at the 3rd appointment? Delivery appointment steps
1. The patient is seated and anesthetized if deemed necessary. (sensitive vital teeth)
2. The provisional crown or restoration isremoved. All temporary cement must be removed from the prepared tooth. The tooth is then thoroughly cleaned and dried.
3. The prosthetic is disinfected and then placed on the tooth for a ‘try-in’.
4. Adjustments are made as necessary. If the prosthetic cannot be satisfactorily adjusted within the office, it may be necessary to take a new impression and re-fabricate the prosthetic.
5. The area is isolated with cotton rolls to maintain a dry field.
6. The assistant prepares the permanent luting cement or bonding system and applies it to the inner surface of the prosthetic. – RDA Passes prosthetic to the DDS
7. The dentist seats the prosthetic. The patient may be asked to assist with the seating by applying force to the prosthetic via a bite stick or cotton roll. The dentist ensures seating is ideal using the mirror and explorer to assess the margins. The patient applies biting pressure until the cement or banding system is set.
8. Once the cementation (luting) agent has completely set, the excess cement is removed from all areas and isolation is removed
9. Post-operative instructions written and verbal are provided to the patient.
29
Steps in a CEREC Digital Restorative Technology Appointment
1. Anesthetic
2. Scan digital impression
3. Area preparation
4. Mill Crown
5. Try in
6. Cement permanently
30
What is an advantage of CEREC?
Less time spent in the dental office for the patient
31
What is a disadvantage of CEREC?
Costly for dental practice to buy
32
If a patient has periodontal disease but good dental hygeine habits, is fixed prosthodontics indicateD?
no, because of the perodontal disease
33
How many appointments are commonly required for a crown or bridge?
Two appointments are commonly required
34
What is the difference between an onlay and a three-quarter crown?
An onlay covers most of the occlusal and proximal surfaces (involves at least 1 cusp)
A three-quarter crown covers other surfaces such as the facial or buccal surfae
35
How does a dentist convey to a dental laboratory technician the type of crown or bridge that should be made?
Laboratory prescription
36
What type of indirect restoration is placed to improve the appearance of the facial surfaces of teeth?
Veeners
37
this describes a stable tooth to support the
bridge
abutment
38
What is another name used for permanent cement?
Luting agent
39
When is a temporary cement used instead of a permanent cement?
Temporary cement is used for provisional coverage or for cases in which the dentist needs to remove the indirect restoration at a later date, there is concern about sensitivity or other symptoms that might require removal of the cast restoration, or when temporary cementation is required while the patient waits until the laboratory technician completes the cast restoration.
40
What variable affects the addition or loss of water in dental cement?
Humidity affects the addition or loss of water in a material.
41
Can Glass Ionomer cement be used as a restoration material?
Yes - glass ionomer cement can be used as a restoration material.
42
What ingredient in the powder of glass ionomer cement helps to inhibit recurrent decay?
Acid-soluble calcium slowly releases fluoride to help inhibit recurrent decay.
43
Can resin cements be used under metal castings?
Yes, resin cements may be used under metal castings.
44
In the composite resin cementation procedure, what step is important to complete on the tooth surface before cementation of the material?
In the composite resin cementation procedure, the tooth must be free of all plaque and debris and must be prepared by etching or by treatment with a bonding system before cementation.
45
What type of ZOE is used for permanent cementation?
Type II ZOE is used for permanent cementation.
46
On what mixing surface is ZOE mixed?
ZOE is mixed on an oil-resistant paper pad or a glass slab.
47
How is TempBond Supplied?
TempBond is supplied in two tubes of paste.
48
In what two forms is the polycarboxylate cement liquid supplied?
Polycarboxylate cement is supplied as powder or liquid
49
How should polycarboxylate cement appear after the mixing process?
It should appear glossy after mixing.
50
What is the main component in the liquid form of zinc phosphate cement?
The main component of the liquid of zinc phosphate cement is phosphoric acid.
51
How do you dissipate the heat from zinc phosphate during the mixing process?
To dissipate the heat, spatulate over a large area of a cool glass slab.
52
What size of powder increment is first brought into the liquid of zinc phosphate during mixing?
The smallest icrement of powder is first brought into the liquid during mixing.
53
Do you "fill" or "line" a crown with permanent cement?
You "line" a crown with permanent cement.
54
________ is the method of mixing a cement by using a flat flexible metal or plastic instrument.
Spatulate
55
_____ is a type of reaction or process in the release of heat.
Exothermic
56
A(n) _____ refers to a temporary type of tooth coverage used for a short time.
Provisional
57
_____ is a type of dental material that is designed to temporarily or permanently hold an indirect restoration in place.
Cement
58
To ______ is to slow down the process of something.
retard
59
Another name for a type I dental cement is _______.
luting agent
60
Another name used to describe a permanent cement is _________.
luting agent
61
Which of the folllowing procedures would you include a temporary cement on the tray setup?
Provisional coverage
62
Which variable can affect the addition or loss of water in a material?
Humidity
63
What type of zinc oxide-eugenol (ZOE) is used for permanent cementation?
Type II
64
On what type of mixing paid is ZOE mixed?
Treated paper pad
65
Temp bond is supplied as _________.
Two tubes of paste
66
The main ingredient in the liquid of zinc phosphate is ______.
phosphoric acid
67
How do you dissipate the heat from zinc phosphate in the mixing process?
Use a cool glass slab
68
If the powder of a dental material is dispersed in increments, what size increment is commonly brought into the liquid first?
Smallest
69
How is the liquid portion of polycarboxylate cement supplied?
Squeeze bottle and calibrated syringe
70
At the completion of the process for mixing polycarboxylate cement, the end product should appear ____.
glossy
71
Can a glass ionomer material be used as a restorative material?
Yes
72
What unique ingredient in the powder of glass ionomer cement helps inhibit recurrent decay?
Calcium
73
Can a resin cement be used with a metal casting?
Yes
74
Are stainless steel crowns considered provisional or permanent when placed on primary teeth?
Permanent
75
What type of cement is Duralon?
Duralon is a polycarbocylate
76
What are the 3 Types of Impressions?
Preliminary Impression (Reproduction)
Final Detail
Record of occlusion (bite registration)
77
What are the 4 forms of materials?
Light Body - very thin, records fine tooth detail, wash or syringe
Regular Body - medium viscosity, tray filler
Heavy Body - thick viscosity, tray filler
Putty - thickest/highest viscosity, tray filler
78
How long can non-treated gingival cords stay in the mouth/gingival sulcus?
15 mins
79
How long can treated gingival cords stay in the mouth/gingival sulcus?
Up to 7 mins
80
What are the 4 types of Elastomeric Impression Materials?
1. Polysulfide
2. Polyether
3. Condensation Silicone
4. Addition Silicone (polyvinyl siloxane)
81
What are the 3 curing stages?
1. Initial - able to mix, getting stiff
2. Final set - changes from elastic to solid to rubber
3. Final cure - 1 to 24 hours
82
What are the 4 Dispensing Methods?
1. Paste systems (manual mix)
2. Automix system (dispensing gun)
3. Mixing unit systems (self mix)
4. Putty system (manual mix)
83
What are Adhesives used for?
to keep the impression material in the tray
specific types are used with specific impression materials..
-polyvinyl siloxane and polyether impression
-rubber base impression
- silicone impression
84
What do Digital Impressions do?
Scans teeth and surrounding tissues: lasers/light sources
2 methods:
* Digital photo
* Digital video
85
IPC to follow for impressions?
use clean gloves/ clean hands when dispensing
* double wipe all Always !
86
Can a DA take final impressions for crown/bridge preps?
Yes! The dentist should be evaluting final impressions obtained by a dental assistant
87
How do you know which material type you are working with?
READ the product label - read the manufacture instructions
88
What is the next step within prosthodontic appointment.. you just finished placement of retraction cord. What should you do next?
correct Final Impression materials are ready as per dentist
89
Is elastomeric impression used for prelim or final impressions?
Final impressions - used to produce the most accurate final impressions
90
In which ways is elastomeric material supplied?
Auto-mix gun
manual mix
1. Light body
2. Regular Body
3. Heavy Body
4. Putty
91
What technique method is used to place light body material around the tooth?
Syringe method or wash type method***
92
What impression material will the dentist first appy to a prepared tooth: the light body or heavy body?
light body
93
What is another name for Polysulfide?
Rubber base
94
What can CEREC Digital dentistry be used for?
For.. full porcelain crowns
inlays
onlays
Can be completed in 1 visit
95
What type of preliminary impressions are available?
-Alginate (Irreversible Hydrocolloid)
- Digital
96
What diagnostic tools are available?
Wax up
Facial measurements with face bow
Articulator for bite
97
What methods are available to record tooth colour?
Shade matching with shade guide
Digital scanner that will tell you the shade
Use natural light
Do in morning so eyes are fresh
Look at something blue to cleanse eyes
Do not do with dental dam on
98
What isolation methods are available?
-Cotton Rolls
-Dry angles
-dental dams
-HVE/LVE
-Isolite
99
What dental burs are typically used with prostho appointments?
Diamond Burs
Carbite burs (less expensive but more are needed)
100
What type of handpiece(s) is a dental assistant not allowed to use?
High speed
Also... Slow speed straight is NOT to be used in the mouth
101
What retraction methods are available?
Gingival cord (single or double)
Laser to trim gums
Electrosurgery
102
What type of methods are available to record final impressions?
Digital impression
Physical impression (Auto-mix with gun or manual mix)
103
What type of impression material will most likely be used to record final impression?
PVS - polyvinyl siloane
104
What is the impression material that will least likely to be used to record final impression?
Polysulfide (egg smelling ones)
105
What is the next step after the final impressions?
Temporary restoration
... with automix gun, template, slowspeed handpiece, mandrel with disc, round slow speed bur, articulating paper, floss, floss threader, mirror, explorer, forceps, cotton rolls, HVE/LVE....
106
How many appointments are typically required to fabricate Cerec crown/inlay or onlay?
1 appointment!
107
What types of temporary cement types are available?
Eugenol
Non-Eugenol
108
What are the post op instructions given after temporary restorations are cemented?
-Local Anesthetic will wear off in 2-4 hours avoid biting or poking at the tissues.
-Also avoid sticky, chewy food
-The teeth and gingival tissue may be sensitive – can use an OTC pain medication but if the pain persists, call the office.
-If the temporary restoration falls out, please call the office immediately.
-You must brush and floss the area gently.
-Remember to not pull the floss through the contact, but through the embrasure.
-This is temporary and must be replaced within 90 days.
109
What type of permanent cements are available?
Glass Ionomer
Zinc Phosphate
Polycarboxylate
Bonding **CHECK THESE
110
What type of material should be used to cement porcelain full crowns?
Nexus - bonding has colours to match
111
What type of material should be used to cement porcelain fused to metal full crowns?
Not Luting - cannot light cure through metal
Glass Ionomer or Zinc Phosphate - does not need to be light cured
112
What are the post op instructions given after restorations are permanently cemented?
Everything for temporary except 90 days!!!
113
How are dental cements classified?
Into 3 types:
Type I - luting agents (act as an adhesive - glue)
Type II - used as restorative materials and intermediate restorative materials
Type III - Used as liners & bases when cavity is deep and close to the pulp
114
When cementing a PFM crown, what type of cement will be required?
Type I luting agent is required - can't be a light cured material (cant cure through the metal)
115
When patient asks you why temporary cementation is used with the permanent crown, what would your response be?
Due to tooth sensitivity for example, dentist may choose to use tempoary cement on permanent crown or continue to use provisional coverage with temporary cement. Either way provisional/temp coverage will be provided as long as the dentist is unsure if permanent cementation cn be used. Until then the area will be monitored.
116
Regardless of the product used.. what guidelines must be followed to ensure the material is mixed correctly?
-Always follow manufacture instructions, do not alter rations, mixing times, etc.
-Know the reson cement is used as this will determine the type needed
117
Rules for dispensing/mixing cement materials..
-Always dispense powder first than liquid second
-Always fluff the powder
-Hold liquid vertical for correct amount
- divide powder into smaller section if required
-mix throughout, do not leave loose powders unless specified by the manufactures
-Be aware of temperature setting as some cements produce heat known as exothermic reaction. OFten cool glass slb (retrieved from the fridge) will be used.
118
Why should you have moist 2x2 gauze prepared when mixing cements?
Have moist gauze in hand while mixing cements as wiping cement off the spatula should be completed immediately
119
What other cement systems are available and often used in dentistry - and what is the advantage of them?
Auto-mix system and the advantage is that it provides the exact rations for application
120
Patient is scheduled for a 4.6 PFM permanent crown. What type of cement will be most suitable?
Glass Ionomer
121
Patient is scheduled for 1.3 to 2.3 veneer bonding. What type of cement will be most suitable?
Composite resin cement/bonding due to shade matching availability
122
Patient is scheduled for 2.5 porcelain crown. What type of cement will be most suitable?
Glass Ionomer or Composite Resin Cement/bonding
123
What technique is required/used to mix Zinc Phosphate?
Figure 8 mixing techniques
124
What instrument is used to line cement inside the cast?
PFI
125
What is the proper amount of cement needed to line the internal walls of the crown?
The cement should cover all the walls - MDBL and O - not a thick amount
126
Is it within the scope of practice in Alberta for RDA's to remove temporary and permanent cement subgingival?
A DA can only remove cement from SUPRA gingival
127
What type of cement can be both temporary & permanent?
Zinc Oxide / ZOE Eugenol cement - 4 types available
128
What types of cements have a soothing effect on the tooth/pulp?
Zinc Oxide/ ZOE Eugenol cement
&
Polycarboxylate cement
129
What type of cement releases fluoride?
Glass Ionomer Cement
130
What is the makeup of Glass Ionomer cement?
Polyacrylic acid, copolymer and water
131
What type of cure is Glass Ionomer cement?
Self-curing, or light curing
powder and liquid or capsules
132
What type of cures is Composite resin cement available in?
Light cure or dual cured systems
powderand liquid or syringe
133
What is the chemical make up of Composite resin cement ?
Similar to composite resin (etch, primer, bond)
134
What is the chemical make up of ZOE cement?
Eugenol, water, acetic acid, zinc acetate, calcium chloride
135
What is the make up of Polycarboxylate cement?
Polyacrylic acid, itaconic acid, maleic acid, tartaric acid and water (syrup like constancy)
136
What is the make up of Zinc Phosphate cement?
50% phosphoric acid in water, aluminum phosphate and zinc slats to control PH
137
What is used to mix ZOE cement?
Use resistant mixing pad due to oil content or glass slab
Paste of base and catalyst.
Supplied with or without eugenol
138
What is used to mix Polycarboxylate cement?
Powder and liquid, use nonabsorbent paper pad
Cool glass slab can be used
139
What is used to mix Zinc Phosphate cement?
Cool glass slab is used
140
What type of preliminary impression materials are available to use?
Alginate
Elastomeric Putty
(Irreversible Hydrocolloid)
141
What type of dental waxes are available and which one will be used to modify impression tray?
Boxing Wax
Bite Registration / Baseplate
Utility wax - used to modify impression tray
Casting wax
142
What diagnostic tools are available?
Face Bow - meassures the distance from TMJ to maxillary midline
Articulator - simulates the bite of a patient
143
If Tooth 2.5 is missing, what type of fixed restoration can be considered?
Crown supported implant
144
If Teeth 1.4 to 2.5 have fluorosis like staining visible, what type of fixed restoration can be considered?
Veneers
145
If tooth 1.5 has a large DO amalgam restoration (cusps are involved) what type of fixed restoration can be considered?
Onlay
146
If Tooth 4.6 is missing, what type of fixed restoration can be considered?
Implant supported Crown or 3 unit bridge or cantelever bridge
147
What methods are available to record teeth colour?
shade guide
teeth color comparator
148
What isolation methods are available?
Dental Dam
Cotton Rolls
Isolite
Dri Angle
149
What dental burs are typically used with prostho appointments?
Diamond burs
150
What type of handpiece(s) is the dental assistant not allowed to use?
High Speed Handpiece
Air abrasion / Ultrasonic
Laser
151
What type of retraction methods are available?
Mechanical - Surgical (electro-laser)
Physical/Chemical - Cord / Solution
152
What type of cement is most suitable for a PFM Crown?
Type 1 Luting Agent - Glass Ionomer
153
What type of methods are available to record final impressions?
Auto-Mix / Auto-Tip
Manual Mix w/ spatula
Dispenser (like ice cream machine)
154
If Tooth 1.4 has a small DO amalgam restoration (cusps are not involved) what type of fixed restorations can be considered?
Inlay
155
What type of impression material will most likely be used to record final impression?
PVS (Polyvinyl Siloxane)
156
What type of impression material will be LEAST likely used to record final impressions?
Poly ether / Poly sulfide (smelly)
157
What is the next step after the final impressions?
Temporary restoration placed
Lab RX is sent to make prostho
158
When would a stainless steel crown be commonly selected for use as a provisional?
When primary teeth are part of a treatment
159
What type of material is used for final impressions?
elastomeric material
160
How many appointments are normally required for a 3-unit fixed bridge?
2 appointments
161
What should be placed between the maxillary and mandibular cast when trimming them together?
Wax bite
162
Before an impression is taken with reversible hydrocolloid, where is the material kept?
the material is kept in a conditioning bath
163
What impression material will the dentist first apply to a prepared tooth: the heavy body or the light body?
Light body is placed first on the tooth, heavy body goes on tray and is placed second
164
What is the most common wax used to create a pattern for an indirect restoration?
inlay casting wax
165
What is the BEST retention option(s) available for extensively vital decayed tooth?
Pins and Core Buildup
(Post is for NONVITAL tooth)
166
What dental stone has the least amount of expansion?
High-strength stone
167
How long should you wait before you separated the model from the impression?
45-60 mins
168
Which of the three classifications of impressions is used for occlusal relationships
bite registration
169
What is used to extend the length of a tray?
utility wax
170
How do you dissipate the heat from zinc phosphate during the mixing process?
Spatulate over a large area of a cool glass slab (figure eight motions)
171
What is the organic substance within hydrocolloid materials?
seaweed
172
How should polycarboxylate cement appear after the mixing process?
glossy
173
What is another term for poysulfide?
rubber base
174
On what mixing surface is ZOE mixed?
OIL resistant mixing pad
175
What is the difference beteen an onlay and a three-quarter crown?
An onlay covers most of the occlusal and proximal surfaces: a three-quarer crown covers all but the facial or buccal surface
176
What is another term for a dental model?
Study cast
177
when is gingival surgery done?
Hypertrophied gingival tissue present
* Tissue is removed
* Electrosurgery
* Surgical knife
* Laser
178
Patient comminication for gingival surgery?
Surgical: Electrosurgery/Laser
* Smell/ smoke expected
* HVE used to reduce smell/smoke
* Gums may be sore
* May need to take Advil etc.
* Safety glasses used when operating laser for all
179
What part of the tooth is covered by a full crown?
The anatomic portion
180
What is the term for an exact replica of a tooth prepared by a laboratory technician?
A die is the exact replica of a prepared tooth
181
What material does a lab tech use to create the pattern for a casting?
Wax is used to create the pattern for a casting
182
What does the dentist use to reduce the height and countour of a tooth for a casting?
Rotary instruments, specifically carbride burs (and diamond) are used to reduce the height and contour of a tooth
183
If a tooth is NONvital, what is fabricated and placed into the pulp for better retention of a crown?
A post and core are placed into a nonvital tooth for better retention of a crown.
184
What term is used for overgrown tissue?
Hypertrophied tissue
185
What accessory is used to help in flossing a bridge?
A floss threader
186
A (n)______________ is a preformed component fitted into the canal of an endodonticlly treated tooth to improve the retention of a cast retention.
Cast Post
187
The _____ is a buildup of a restorative material that provides a larger area of retention for the permanent crown or abutment of a bridge.
Core
188
A postive reproduction of the prepared tooth used in a lab for the making of a cast restroation is a _____.
die
189
A cast restoration designed to restore a conservative class II preparation is a(n) ____.
inlay
190
a _____ also referred to as a Maryland bridge has wing like projections that are bonded to the lingual surfaces of adjacent teeth.
Resin boned bridgde
191
What type of provisional covrage could be used for anterior teeth?
custom and polycarbonate provisional coverage could be used for anterior teeth
192
What type of tray or mold is used to fabricate a custom provisional?
alginate impression, baseplate wax impression, vacuum-formed tray, and silicone putty impression are commonly used
193
After the acrylic resin is mixed, how would you place it for the prepared tooth?
The acrylic resin is placed in an alginate impression or thermoplastic tray before seating it on the prepared tooth
194
Does a polycarbonate crown remain on a prepared tooth, or is it just a mold for the provisional coverage?
A polycarbonate crow ncan be used either way
195
What type of provisional is fabricated for anterior teeth?
preformed polycarbonate
196
What step of the procedure is required before the dentist prepares a tooth for a custom provisoinal?
Prelimary impression
197
_____ is the type of material used when making a custom provisional.
Acrylic resin
198
The acrylic resin material is placed in the ______ during construction of a provisional crown.
Preliminary impresion or thermoplastic tray
199
What is the success rate for dental implants?
90%
200
How long can dental implants last?
As long as 20 years, sometimes a lifetime
200
How long an an implant procedure take to complete?
An implant procedure can take several months or longer
201
What material is commonly used to make an implant?
titanium
202
What component of the endosteal implant attaches to the artificial tooth or teeth?
The abutment post or cylinder
203
When would a subperiosteal implant be recommended to a patient?
For a patient who does not have sufficient alveolar ridge remaining to support the endosteal type implant. It is commonly used to support a mandibular complete denture
204
A type of implant that a metal framework is surgically inserted in the inferior border of the mandible is a(n) ______.
transosteal implant
205
The ____ implant is surgically placed into the maxillar or mandible.
Endosteal
206
A(n) _____ implant has a metal frame that is surfically placed under the periosteum of the maxilla or mandible.
Subperiosteal
207
A ____ is a clear acrylic template placed over the alveolar riddge to aid the dentist in placement of a dental implant.
Stent
208
____ is a type of metal used for implants.
Titanium
209
