Prostho Flashcards
1
Q
Which connectors carry a poor prognosis rigid/ non-rigid connectors?
A
Nonrigid connectors
2
Q
Crown-to-Root Ratio
* ideal
* realistic
* minimum
* poor (not used for abutments)
A
Crown-to-Root Ratio
* 1:2 ideal
* 2:3 realistic
* 1:1 minimum
* 2:1 poor (not used for abutments)
3
Q
_____________ roots are preferred over ___________roots
A
Divergent, multiple, curved, and broad roots
are preferred over fused, single, conical, and
round roots
4
Q
Overdenture
* ______ implants in mandible, __________ implants in maxilla
A
Overdenture
* 2 implants in mandible, 4 implants in maxilla
5
Q
Allows minor angle correction cement/screw retained implant
A
cement-retained implant
6
Q
Alginate
* __________ controls the setting rate
* __________ minutes - remove tray
* __________ minutes - pour impression
* _________ minutes - cast sets
A
- Trisodium phosphate controls the setting rate
- 2-3 minutes à remove tray
- Within 15 minutes à pour impression
- 30-60 minutes à cast sets
7
Q
Maximum Intercuspation (MI)
* dependent/Independent of condylar position?
A
Maximum Intercuspation (MI)
* Independent of condylar position
8
Q
single fixed procedure- MI/CR?
complete dentures, multiple teeth being restored or replaced MI/CR?
MI and CR coincide in only ______% of the
population
A
MI
CR
MI and CR coincide in only 10% of the
population
9
Q
- ________ facebow= orients maxillary cast to skull via external auditory meatus to stabilize the bow
*_________ facebow= placed on the hinge axis of the mandible
A
- Arbitrary facebow= orients maxillary cast to
skull via external auditory meatus to stabilize
the bow - Kinematic facebow= placed on the hinge axis
of the mandible
10
Q
Semiadjustable Articulator
* Allows you to set the Bennett angle (____˚) and HCI
(____˚)
A
Semiadjustable Articulator
* Allows you to set the Bennett angle (15˚) and HCI
(30˚)
11
Q
upper and lower members are rigidly
attached ________ articulator
A
non arcon
12
Q
Distance between hinge and teeth is significantly shorter than in the patient
A
Nonadjustable Articulator
13
Q
- Casts poured from alginate are more
accurately mounted with ______ records - Casts poured from elastomeric
materials are more accurately
mounted with _______
A
wax
elastomeric materials (PVS) or ZOE paste
14
Q
Disclusion
* Condylar guidance
– Slope of ______
– Represented by _________ on articular
–__________determinant of occlusion
* Incisal guidance
– Represented by _________ on articulator
–___________ determinant of occlusion
* Canine guidance
– When in ________ movements all posterior teeth are immediately discluded as contact occurs solely between upper and lower canine on the working side
* Anterior guidance
– Refers to both ________ and _________ guidance
A
Disclusion
* Condylar guidance
– Slope of articular eminence
– Represented by HCI on articular
– Posterior determinant of occlusion
* Incisal guidance
– Represented by pin and guide table on articulator
– Anterior determinant of occlusion
* Canine guidance
– When in lateral movements all posterior teeth are immediately discluded as contact occurs solely between upper and lower canine on
the working side
* Anterior guidance
– Refers to both incisal and canine guidance
15
Q
- During protrusive, _______ and __________ guidance provide clearance for all posterior teeth
- During lateral, _______ on working side and ________ on balancing side provide clearance for posterior teeth on balancing side
A
- During protrusive, incisal and condylar guidance provide clearance for all posterior teeth
- During lateral, canines on working side and condyle on balancing side provide clearance for posterior teeth on balancing side
16
Q
- Mechanical incisal guide table gives insufficient
information to reproduce _____________ - ____________ is made out of acrylic resin
and provides this information
A
- Mechanical incisal guide table gives insufficient
information to reproduce lingual contours of maxillary
anterior natural teeth - Custom incisal guide table is made out of acrylic resin
and provides this information
17
Q
- Front teeth protect back teeth—front teeth disclude posterior teeth during _________ and _________ movements
- Back teeth protect front teeth—back teeth have ______ occlusal surfaces and ________ roots to help protect anterior teeth from bite forces
A
- Front teeth protect back teeth—front teeth
disclude posterior teeth during protrusive and
lateral movements - Back teeth protect front teeth—back teeth
have flat occlusal surfaces and strong roots to
help protect anterior teeth from bite forces
18
Q
Vibrating Line
– _______mm away from fovea palatini
A
Vibrating Line
– 2mm away from fovea palatini
19
Q
Maxillary Edentulous Anatomy
– Distobuccal area presents _____ notch
mandibule
– Distobuccal area presents _____ notch
A
- Coronoid Notch
Masseteric notch
20
Q
- Pterygomandibular Raphe
– Connects _________ and ___________ muscles
A
- Pterygomandibular Raphe
– Connects buccinator and superior pharyngeal constrictor
21
Q
Mandibular Edentulous Anatomy
* Labial Frenum- ________ muscle
* Buccal Frenum-
* Lingual Frenum-
A
Mandibular Edentulous Anatomy
* Labial Frenum- orbicularis oris
* Buccal Frenum- orbicularis oris,
buccinator
* Lingual Frenum- genioglossus
22
Q
- Labial Vestibule-
- Buccal Vestibule-
A
- Labial Vestibule- mentalis
- Buccal Vestibule- buccinator
23
Q
Retromolar Pad
– Contains attachments from__________ muscles
A
Retromolar Pad
– Contains attachments from temporalis, buccinator, superior pharyngeal constrictor, and pterygomandibular raphe
24
Q
Alveololingual Sulcus
* Anterior Region
– From __________ to ________
* Middle Region
– From __________ to distal end of ___________
– Flange is deflected __________ away from mandible due to ___________ in this area and
* Posterior Region
– Extends into____________
– Although mylohyoid attaches higher posteriorly, the posterior fibers are directed more __________ so the denture seats deeper and the lingual flange is longer
– Flange is deflected __________ toward the ramus of the
mandible to form typical S-form of lingual sulcus
– Denture extension in this area is limited by __________ and ___________
A
Alveololingual Sulcus
* Anterior Region
– From lingual frenum to premylohyoid fossa
* Middle Region
– From premylohyoid fossa to distal end of mylohyoid
ridge
– Flange is deflected medially away from mandible due to prominence of mylohyoid ridge in this area and contraction of mylohyoid medially
* Posterior Region
– Extends into retromylohyoid fossa
– Although mylohyoid attaches higher posteriorly, the posterior fibers are directed more vertically so the denture seats deeper and the lingual flange is longer
– Flange is deflected laterally toward the ramus of the
mandible to form typical S-form of lingual sulcus
– Denture extension in this area is limited by palatoglossus and superior constrictor muscles.
25
* Buccal Shelf
– Provides __________ for denture
– Lies __________ to occlusal forces
– ___________ attaches here
* Buccal Shelf
– Provides support for denture
– Lies perpendicular to occlusal forces
– Buccinator attaches here
26
Frenectomy
* ____________ (most to least
common)
Labial > buccal > lingual
27
Free Gingival Graft
* Necessary for some _____denture teeth
Free Gingival Graft
* Necessary for some overdenture teeth
28
Combination Syndrome symptoms
Combination Syndrome symptoms
* Overgrowth of tuberosities
* Papillary hyperplasia in hard palate
* Extrusion of lower anterior teeth
* Loss of bone under the partial denture bases
29
Vertical Dimension
of Rest (VDR)
* Distance between
____________ and ___________ at rest
* In this position there
is usually __________mm of
space between upper
and lower premolars
Vertical Dimension
of Rest (VDR)
* Distance between
nose and chin at rest
* In this position there
is usually 3mm of
space between upper
and lower premolars
30
Interocclusal
Space
* Difference between
these two distances
(ideally ________mm)
2-4mm
31
* VDR = _______ + __________
* VDR = VDO + 3mm
32
Muscles of mastication fatigue seen in Excessive/ Insufficient VDO
Excessive
33
Facebow transfers the relationship between
the __________ and _________ from the patient to
the articulator
Facebow transfers the relationship between
the hinge axis and maxilla from the patient to
the articulator
34
* Camper’s line= imaginary line from _____ to
_________
* Camper’s line= imaginary line from ala of nose to
tragus of ear
35
_______________ guidance should be avoided in
complete denture occlusion to prevent
dislodgment of denture bases
Anterior
36
lateral movement of both
condyles toward the working side, basically “TMJ
looseness” is called
Bennett movement
37
* Curve of Spee= __________ curve to ensure
loading into long axis of each tooth
– More __________ inclination as you move distally
* Curve of Wilson= __________ curve along posterior
cusp tips to ensure loading into long axis of each tooth
– More ___________ inclination as you move distally
* Curve of Spee= anteroposterior curve to ensure
loading into long axis of each tooth
– More mesial inclination as you move distally
* Curve of Wilson= mediolateral curve along posterior
cusp tips to ensure loading into long axis of each tooth
– More lingual inclination as you move distally
38
Fricative or Labiodental Sounds
* Contact between __________ and
____________
* Help determine ____________
* Contact between maxillary incisors and
wet/dry line of lower lip
* Help determine position of incisal edges of maxillary
anterior teeth
39
Linguodental Sounds
* Contact between ____________ and __________
* Help determine _____________
* Contact between tip of tongue and upper and
lower teeth
* Help determine labiolingual position of
the anterior teeth
40
– Tongue is not visible= teeth are
set too ____________
– Tongue sticks out= teeth are set too
________
– Tongue is not visible= teeth are
set too far forward
– Tongue sticks out= teeth are set too
far back
41
Sibilant or Linguoalveolar Sounds
* Contact between ___________ and ___________
* Help determine
* Contact between tip of tongue and the anterior
palate or lingual surface of the teeth
* Help determine vertical length and overlap of
anterior teeth
42
Whistling - __________ arch form
* Lisp where s becomes sh- _________ arch form
* Closest speaking space= also want to evaluate
vertical dimension during pronunciation of
_______ sound, the interincisal separation should be __________mm
Whistling à too narrow arch form
* Lisp where s becomes shà too wide arch form
* Closest speaking space= also want to evaluate
vertical dimension during pronunciation of s sound, the interincisal separation should be 1 to 1.5mm
43
Bilabial Sounds
* Contact between
* ___________ can affect production of these sounds
Bilabial Sounds
* Contact between both lips
* Insufficient lip support by the teeth or labial
flange can affect production of these sounds
44
Guttural Sounds
* Contact between __________ and __________
* Contact between back of tongue and throat
45
Support
* Resistance to __________ forces
Stability
* Resistance to __________forces
Retention
* Resistance to ____________ forces
Support
* Resistance to vertical seating forces
Stability
* Resistance to horizontal dislodging forces
Retention
* Resistance to vertical dislodging forces
46
Adhesion
* Attraction of _______ molecules
Cohesion
* Clinging of ___________ molecules
Adhesion
* Attraction of unlike molecules
Cohesion
* Clinging of like molecules
47
Underextension
* Denture flange is
* Lack of
Underextension
* Denture flange is too short
* Lack of retention
48
Liquid
* monomer
* inhibitor
* cross-linking agent
* activator
Liquid
* Methyl methacrylate (MMA)= monomer
* Hydroquinone= inhibitor
* Glycol dimethacrylate= cross-linking agent
* Dimethyl-p-toluidine= activator
49
Powder
* powder
* initiator
* Pigment
Powder
* Polymethyl methacrylate (PMMA)= powder
* Benzoyl peroxide= initiator
* Salts of iron, cadmium, or organic dyes=
pigment
50
* Ideal ratio of monomer to polymer is _________
1:3
51
Shrinkage always occurs, but more shrinkage if
excessive __________
monomer
52
* Porosity is due
Porosity is due to underpacking with resin at
time of processing or being heated too rapidly
53
more stain and wear
resistant- acrylic /porcelain
porcelain
54
Class _________
* Unilateral bounded edentulous space (BES)
Class III
* Unilateral bounded edentulous space (BES)
55
Rule #5:
Rule #8:
Rule #5: Most posterior edentulous area
determines the classification.
Rule #8: Class IV cannot have any
modifications by definition.
56
Maxillary Major Connector
Most rigid:
Least rigid
* Complete palatal plate
* Horseshoe
57
Add strength and maintain tissue contact to
prevent food impaction
Beading
58
When depth of lingual
vestibule is ≥7mm __________
– When depth of lingual
vestibule is <7mm __________
* Lingual bar
Lingual plate
59
Additional tooth loss
anticipated with __________ major connector
Lingual plate
60
When there is a missing
canine
Labial bar (swinglock)
61
Rest
provide ___________
2. Minor connector=
3. Clasp arms
– Retentive clasp arm=
– Reciprocal clasp arm=
Support
2. Minor connector= stability
3. Clasp arms
– Retentive clasp arm= retention
– Reciprocal clasp arm= stability
62
Occlusal Rest
* ___________ shape
* _____ MD width
* ________ intercuspal width
* __________mm deep for base metal
* Angle formed with vertical minor connector is
__________˚
Occlusal Rest
* Rounded, semicircular outline form (spoonshaped)
* One-third MD width
* One-half intercuspal width
* 1.5mm deep for base metal
* Floor inclines apically toward center
* Angle formed with vertical minor connector is
<90˚
63
Cingulum Rest
* _____________ shape
* __________mm MD length
* __________mm labiolingual width (ledge)
* _________mm deep
* Contraindicated for _________________
Cingulum Rest
* Inverted V or U shape
* 2.5-3mm MD length
* 2mm labiolingual width (ledge)
* 1.5mm deep
* Contraindicated for mandibular incisors
64
Incisal Rest
*___________ shape
*_________mm MD length
* ____-mm deep
Incisal Rest
* Rounded notch at incisal angle
* 2.5mm MD length
* 1.5mm deep
65
Guide Planes
* __________ buccolingual width
* Extends ________mm vertically down from marginal
ridge
Guide Planes
* One-third buccolingual width
* Extends 2-3mm vertically down from marginal
ridge
66
In adolescents aged 12 to 19 years, dental caries is most prevalent in __________ Americans
Hispanic Americans
67
Clasps should encircle a tooth at least 180˚ is Extracoronal/intracoronal?
Extracoronal
68
* Contacts tooth below height of contour/survey line _______ clasp
Contacts tooth above HOC/survey line _________ clasp
Retentive Clasp
Reciprocal Clasp
69
Ring Clasp
* Used when ____________ is adjacent to BES
Ring Clasp
* Used when undercut is adjacent to BES
70
Cobalt-Chromium
* _______% shrinkage which causes irregularities and
porosity
Cobalt-Chromium
* 2.3% shrinkage which causes irregularities and
porosity
71
thinnest gingival tissue is ____________ surfaces of molars and premolars
thinnest gingival tissue is lingual molars and facial premolars
72
Tooth preparation ________ has more operator control.
Taper or parallelism
73
If you have a short clinical crown
prep…
– __________ for retention
– ___________ for resistance
– Buccal grooves for retention
– Proximal grooves for resistance
74
* Minimum metal thickness
– ______mm - at the margin
– __________mm - non contact areas
– _______mm - contact areas
* Minimum porcelain thickness
– __________mm
* Minimum PFM thickness= NON-CONTACT AREAS
– __________mm (______mm porcelain, ________mm metal)
* Optimal PFM thickness= CONTACT AREAS
– __________mm (________mm porcelain, _____mm metal)
* Minimum metal thickness
– 0.5mm à at the margin
– 1.0mm à non contact areas
– 1.5mm à contact areas
* Minimum porcelain thickness
– 1.5mm
* Minimum PFM thickness= NON-CONTACT AREAS
– 1.5mm (1.2mm porcelain, 0.3mm metal)
* Optimal PFM thickness= CONTACT AREAS
– 2.0mm (1.5mm porcelain, 0.5mm metal)
75
Reduction= amount of occlusal tooth structure
removed during the preparation
1.5 – 2mm
76
which margin provides the best marginal seal?
Featheredge
77
Light Chamfer
* ________ mm thick
___________ restorations
Light Chamfer
* 0.3-0.5 mm thick
* Gold crowns
78
Heavy Chamfer
* ________ mm thick
* ___________ crowns
* 1.0-1.5 mm thick
* PFM crowns and some all-ceramic crowns
79
Shoulder
* __________ mm thick
* ___________ restorations
Shoulder
* 1.0-1.5 mm thick
* Porcelain of PFM restorations
80
* Occlusal point contacts preferred to be __________
and ____________ to prevent wear
broad and flat
81
* NEVER USE
* Bad hygiene
Saddle/Ridge-Lap
82
* Anteriors
* Good esthetics
Modified Ridge-Lap
83
* Anteriors
* Superior esthetics
* Requires surgery
* Requires good ridge
Ovate
84
____________ connector is indicated when it is impossible to obtain a common path of insertion between abutments
* Nonrigid
85
Connectors for PFM bridges should have a
minimum of _________mm height
3mm
86
Impregnated cords
* AlCl=
* FeSO4=
Impregnated cords
* AlCl= Hemodent
* FeSO4= ViscoStat
87
High acuurate impreesion material?
Most inccurate impression material?
Agar
Algiante
88
Setting Time increases/ decreases?
* Cold water
* More water
↑ Setting Time
* Cold water
* More water
89
* Imbibition=
* Syneresis=
* Imbibition= absorption of
water
* Syneresis= loss of water
90
__________ impression material is
– Hydrophilic
– Imbibition
___________ min to pour
Polyether
* 60 minutes to pour
91
Best fine detail, elastic recovery, dimensional stability
Addition Silicone (PVS)
92
Inhibited by the sulfur in
latex gloves and rubber dam
Addition Silicone (PVS)
93
↑ Water
* __________ strength
* __________ porosity
* ____________expansion
* ____________ setting time
* _________ spatulation time
↑ Water
* Less strength
* More porosity
* Less expansion
* Increased setting time
* decreased spatulation time
94
Gypsum
* _______ second vacuum mix or _________ second hand spatulate
* Setting time is __________ minutes
* Disinfect with
Gypsum
* 20 second vacuum mix or 30 secondhand spatulate
* Setting time is 45 to 60 minutes
* Disinfect with 1:10 bleach solution,
glutaraldehyde, or iodophor spray
95
Ability to resist fracture during pulling is ___________ strength
Tensile Strength
96
Deforms easily under tensile strength is called
eg:
Ductility
* Deforms easily under tensile strength
* Wires are prime example
97
* Ability to be burnished
eg:
Percentage Elongation
* Gold is prime example
98
* Deforms easily under compressive
stress
eg:
Malleability
* Deforms easily under compressive stress
* Gold is prime example
99
Coefficient of Thermal Expansion
– Composite-
– Amalgam -
– Gold-
– Tooth-
– Porcelain-
– Composite 30 (unfilled resin is worst)
– Amalgam 25
– Gold 14 (best)
– Tooth 11.4
– Porcelain 6
100
* Bis-Acryl Composite=indirect/dirsect material?
direct
101
Provisional cements have __________ which
inhibits polymerization of resin
Eugenol
102
Metal-Ceramic Failures
* Adhesive failures (between _________materials)
– Porcelain-metal if _______
– Oxide-metal if
– Porcelain-oxide if
* Cohesive failures (between _______ material)
– Porcelain-porcelain if
– Oxide-oxide if
– Metal-metal if _______ material
Metal-Ceramic Failures
* Adhesive failures (between different materials)
– Porcelain-metal if oxide was not formed
– Oxide-metal if metal is contaminated
– Porcelain-oxide if porcelain is contaminated
* Cohesive failures (between same material)
– Porcelain-porcelain if inclusions or voids
– Oxide-oxide if oxide layer is too thick
– Metal-metal never happens
103
* Glass-infiltrated ceramics are etched with __________ and treated with __________ and bonded to the tooth
* Ceramics with no glass content (zirconia and alumina) are luted to the tooth with ________
* Glass-infiltrated ceramics are etched with
hydrofluoric acid and treated with silane coupling
agent and bonded to the tooth
* Ceramics with no glass content (zirconia and
alumina) are luted to the tooth with cement
104
Porcelain veneer
* ______mm gingival third reduction
* _________mm facial reduction
* ________mm incisal reduction
* __________ preparation
* 0.3mm gingival third reduction
* 0.5mm facial reduction
* 1-2mm incisal reduction
* Intra-enamel preparation
105
Maryland Bridge
* Conventional bridge requires more removal of ___________
* Resin-bonded bridge can experience __________
Maryland Bridge
* Conventional bridge requires more removal of
tooth structure
* Resin-bonded bridge can experience debonding
106
Color appears different under different
lighting
Metamerism
107
________K and ________% CRI is ideal light
5500K and 100% CRI is ideal light
108
Opalescence
* Light effect of a translucent material
appearing ________ in reflected light and ________in transmitted light
Opalescence
* Light effect of a translucent material
appearing blue in reflected light and redorange in transmitted light
109
* Value first - seen at __________in crown
* Chroma second
* Hue last
* Value first - middle third of crown
* Chroma second - cervical third of crown
* Hue last - incisal third of crown
110
Object emits visible light when exposed to ultraviolet light is called
Fluorescence
111
Staining=__________ of fluorescence and _________ metamerism, usually decreases value
Staining= loss of fluorescence and increases
metamerism, usually decreases value
112
You can always add more color and make
something __________, but not the reverse
You can always add more color and make
something darker, but not the reverse
113
Order to to follow after crown delivery from lab:
1. Shade (esthetics)
2. Proximal contacts
– Open à send crown back
– Heavy à adjust before moving on
3. Margins
4. Fit
5. R&R form
6. Occlusion
7. Contour
8. Cement
114
Zinc Polycarboxylate
* Chelation to ______
* __________ pulpal irritation
Zinc Polycarboxylate
* Chelation to calcium
* Minimal pulpal irritation
115
Resin Modified Glass Ionomer
* _________ strength and __________ solubility than GI
Not to be used with __________ crowns due to __________ (exception to this rule is __________)
Resin Modified Glass Ionomer
* Higher strength and lower solubility than GI
Not to be used with all-ceramic crowns due to
expansion from water absorption (exception
to this rule is zirconia)
116
Self-adhesive resin ____________ restorations
Metal
PFM
Zirconia
All-ceramic
117
Conventional resin
All-ceramic
Some zirconia
118
– Gypsum-bonded investments -
– Phosphate-bonded investments -
– Silica-bonded investments -
– Gypsum-bonded investments à gold
– Phosphate-bonded investments à PFM
– Silica-bonded investments à base metal
119
* Melting metal into the investment is called
Casting
120
* Very hot cast metal immediately placed in cool water to make more ___________for finishing
Malleable
121
Porosity Issues
* Porosity of porcelain -
* Porosity of acrylic -
* Shrinkage porosity of metal -
* Back-pressure porosity of metal-
Porosity Issues
* Porosity of porcelain à inadequate condensing of porcelain
* Porosity of acrylic à too fast heating
* Shrinkage porosity of metal à too thin sprue prevents molten metal from flowing effectively into the mold
* Back-pressure porosity of metal à too short sprue prevents venting of gas, gas was still present in an area prohibiting fluid from flowing in
122
The ring clasp is used when the undercut is _________ to the bounded edentulous space (BES) and not _________ the tooth.
The ring clasp is used when the undercut is adjacent to the bounded edentulous space (BES) and not across the tooth.
123
Akers clasps are the most commonly used design and uses a retentive and reciprocal arm that engages an undercut _____________from the bounded edentulous space.
away
124
ideal amount of taper for a crown preparation is ___________°
6°-10°
125
a high elastic modulus indicates a ______material
more stiff
126
Characterization is the act of reproducing __________ defects on a crown
natural
127
Feldspathic porcelain is a predominantly glass-ceramic material that is _______ esthetic but has a__________ flexural strength
highly, low
128
When preparing teeth for veneer placement, extension of the preparation into ________can result in decreased resin cement bond strength and thus should be avoided.
dentin
129
When the bond surface is more than 50% in dentin, the risk of veneer failure is __________.
high
130
Does error in shade matching affects the Opaqueness crown? yes/no?
NO
An error in shade matching may change the value and hue of the crown, but should not affect the opaqueness of the crown.
131
adhesives contain zinc, which can cause __________ if used excessively.
neuropathy
132
The alveolar bone of the maxilla resorbs in a ___________ direction. The resorption pattern of the maxilla causes the arch to also become progressively _______________.
superoposterior
Narrower
133
The alveolar bone of the mandible resorbs in an _________________ direction. The resorption pattern of the mandible causes the arch to also become progressively _________________.
inferoanterior
wider
134
Chroma
saturation or intensity of color
135
____________ is a rare-earth ceramic that is often added to zirconia as a stabilizing agent.
Yttria
136
3Y is the ____________ and most ____________, while 5Y is the ___________ and most _____________.
3Y is the strongest and most opaque, while 5Y is the weakest and most translucent.
137
**______________ refers to the circumferential band of tooth structure in crown preparations** that helps **prevent fracture**.
Ferrule
138
To observe the rule of the ferrule, at least _________________mm of coronal tooth structure must be maintained.
1.5 mm to 2.0 mm
139
__________cured resins are more porous than ____________resins due to their higher amount of excess residual monomer.
Chemically
heat-cured
140
The best way to cure denture acrylic in order to prevent candida growth is ____________.
to perform injection molding with heat cure resin
141
The ___________ of a post is the least practical to improve the post's retention.
diameter
142
Primary stress baring areas
Maxilla-
mandible-
Maxilla-alveolar ridge and palate
Mandible- buccal shelf
143
Secondary stress-bearing area
Max-
Man-
Max- tuberosities, rugae
Man- Residual ridge
144
The maxilla and mandible can be related together with an _______________ , not a facebow.
interocclusal record
145
CAD/CAM dentistry plays an important role in ______________ analysis during prosthodontic treatment planning.
occlusal
146
