7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
1/38
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
2/38
A type of crown that partiallycovers or veneers the clinical
crown
Usually the involved surfaces are
the proximal, lingual andincisal/occlusal (anterior andposterior crown) and somebuccal (posterior 7/8 crown andmodified crown) except forlaminate veneers wherein thelabial, incisal and proximal
surfaces are involved
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
3/38
Several types of partial veneers
exist:
a. Posterior teeth
1. Three-quarter crown2. Modified three-
quarter crown3. Seven-eights crown
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
4/38
Several types of partial veneers
exist:
b. Anterior teeth
1. Three-quarter crown
2. Pinledge
3. Laminate veneer
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
5/38
TYPES OF
PARTIAL VENEERCROWNS
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
6/38
1. Posterior Teeth PVC
Three-quarter crownSeven-eighth crown
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
7/38
Modified three-quarter crown
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
8/38
Indications:
a. Sturdy clinical crown of averagelength or longer
b. Intact buccal surface not in need ofcontour modification and well-supported by sound toothstructure
c. No conflict between axial
relationship of tooth andproposed path of withdrawal ofFPD
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
9/38
Contraindications:
a. Short teeth
b. High caries indexc. Extensive destruction
d. Poor alignment
e. Bulbous teethf. Thin teeth
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
10/38
Advantages:
a. Conservative of tooth structure
b. Easy access to margins
c. Less gingival involvement thanwith complete cast crown
d. Verification of seating simplee. Electric vitality test feasible
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
11/38
Disadvantages:
a. Slightly less retentivethan complete cast
crownb. Limited adjustment of
path of withdrawal
c. Some display of metal
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
12/38
2. Anterior Teeth PVC
a. Three-quarter crown
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
13/38
Indications:
a. Sturdy clinical crown of averagelength or longer
b. Intact labial surface that is not in
need of contour modificationand that is supported by soundtooth structure
c. No discrepancy between axial
relationship of tooth andproposed path of withdrawal ofFPD
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
14/38
Contraindications:
a. Short teethb. Nonvital teeth
c. High caries index
d. Extensive destructione. Poor alignment with path of
withdrawal of FPD
f. Cervical caries
g. Bulbous teeth
h. Thin teeth
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
15/38
Advantages:
a. Conservation of tooth structureb. Easy access to margins for finishing
(dentist) and cleaning (patient)
c. Less gingival involvement thanwith complete cast crown
d. Easy escape of cement and good
seatinge. Easy verification of complete
seating
f. Electric vitality test feasible
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
16/38
Disadvantages:
a. Slightly less retentive than completecast crown
b. Limited adjustment of path ofinsertion
c. Some display of metal
d. Not indicated on nonvital teeth
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
17/38
2. Anterior Teeth PVCb. Pinledge
Periodontal problemLingual Preparation
Anterior Splinting
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
18/38
Indications:
a. Undamaged anterior tth in caries-free mouth
b. A high esthetic requirement
c. Where proximal grooves areimpossible to prepare
d. To alter lingual contour of max.
anterior teeth or to alterocclusion
e. Anterior splinting
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
19/38
Contraindications:
a. Large pulps
b. Thin teeth
c. Nonvital teeth
d. Carious involvement
e. Problems with proposedpath of withdrawalof
FPD
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
20/38
Advantages:
a. Minimal tooth reduction
b. Minimal margin length
c. Minimum gingival involvementd. Optimum access for margin
finishing and hygiene
e. Adequate retention
f. Excellent esthetics
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
21/38
Disadvantages:
a. Less retentive than completecoverage
b. Alignment can prove difficult
c. Technically demanding
d. Not usable on nonvital teeth
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
22/38
2. Anterior Teeth PVC
c. PorcelainLaminate Veneer
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
23/38
0.3-0.5mm
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
24/38
Proximal contact areasand incisal edge arepreserved and thepreparation is
limited to enamel.
A reduction depth of 0.3-0.5mm is recommended.
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
25/38
Prepared Teeth for
Laminate VeneersChamfer
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
26/38
Cemented Laminate
Veneers
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
27/38
Functionality of bite iscritical to comfortabledental rehabilitation. The
mandibular incisorsshould be in gentle touchwith the palatal surfacesof the maxillary incisors,
being 1 mm behind and 1mm below.
The "S" sound is used to
determine the verticalheight of dimension. Thishelps us to determine therelation of the maxillary
and mandibular teeth.
1mm.
1mm.
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
28/38
When porcelain
laminate veneers are
properly prepared,produced, and
finished, an increase
of the crevicular
fluid decreases theplaque index, and
one can see the
healthy tissue
around thebiologically
integrated porcelain
laminate veneers.
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
29/38
Indications:
a. Discoloration (e.g. dentalfluorosis or mottled
enamel/Tetracycline stain)
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
30/38
b. Correcting diastema
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
31/38
Diastema closure and lengthening ofcrown cervicoincisally/wideningmesiodistally
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
32/38
c. Fracture involving proximoincisal
surface
A B
C
D
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
33/38
d. Masking tooth defects
ex. Peg shaped incisors
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
34/38
e. lengthening of crowncervicoincisally for esthetics
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
35/38
Contraindications:
a. High caries indexb. Poor plaque control
c. Extensive existing large
restorations or endodon-tically teeth with little
remaining tooth structured. Tooth wear due to BRUXISM
e. Short teeth
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
36/38
f. Teeth with insufficient or
inadequate enamel forsufficient retention
(ex. Severe abrasion)
g. Patients with oral habitscausing excessive stress on
the restoration(ex. nail biting/pencil
biting)
d
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
37/38
Advantages:a. Superior esthetics
b. Wear and stain resistantc. Excellent long term
durability abrasion-resistant/color-stable, excellent
resistance to fluid absorptiond. Inherent porcelain strength
exhibits excellent compressive,tensile and shear strength
e. Minimal tooth reduction 0.3-0.5mm only
f. Soft tissue compatibility
biocompatible w/ soft tissues
Disadvantages:
7/29/2019 2 Artificialcrowns Partialveneercrowns Midterm2 120203195654 Phpapp01
38/38
Disadvantages:a. Increased tooth contour
b. Expensivec. Time multiple visits are required
d. Fragility during try-in andcementation
e. Lack of repair ability difficult, ifnot impossible, to repair
f. Difficulty in color matching
g. Irreversibility
unlike bleaching,requires tth reduction althoughminimal
h. Inability to trial cement the
t ti