Provisional restorations/ Labial orthodontics

CUSTOM PROVISIONAL
RESTORATIVE MATERIALS
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com

CUSTOM PROVISIONAL
LCDR R. L. Gunning, DC, USN

A dental prosthesis worn for various periods
of time which maintains esthetics, provides
masticating surfaces and protects the hard
and soft tissues prior to the delivery of the
definitive prosthesis.

Provide predictable outcome
Relates functional and esthetic requirements
Satisfy biologic, mechanical, and esthetic
requirements

Pulp protection
Periodontal health
Positional stability

Durable
Easily removed
Diagnostic aid

Texture, color, and
translucency
Color stability
Guide to optimum
esthetics

Convenient handling
Biocompatibility
Dimensional stability
Easily contoured and
polished
Adequate strength and
abrasive resistance
Estheticwww.indiandentalacademy.com

The transitional restoration serves as a medium
of communication of many of the patient’s fears,
anxieties, and deep concerns about the loss of
facial appearance, “normal expression”, retention
clarity of speech, and the ability to continue
participation in social functions.

Diagnostic casts and wax-up
Matrix fabrication
Tooth preparation and provisional
restoration construction
Interim stage treatment evaluation

Polycarbonate
Cellulose acetate
Aluminum
Nickel-chromium

Acetate
Silicone putty
Alginate
Baseplate wax

Polyethyl methylacrylate
Polymethyl methacrylate
Epimines
Bis-Acryl Composite
Microfill light cured
UDMA composites

Advantages
Low curing heat
Extended working time
Low cost
Disadvantages
Wear resistance
Esthetics
Color stability
Unpleasant odor

Splintline
Snap
Trim
Vita
Temp plus

Advantages
Wear resistance
Color stability
Polishability
Esthetics
Low cost
Disadvantages
High curing heat
Polymerization
shrinkage (8%)
Adherence to tooth
Working time
Odor

Alike
Duralay
Jet
Neopar
Tab
True Kit

Advantages
Exothermic heat
Monomer content
Volumetric shrinkage
Disadvantages
Difficult to repair
Low hardness
Example is Scutan

Advantages
Low curing temperature
Minimal polymerization
shrinkage
High tensile strength
High surface hardness
Improved marginal fit
Advantages
Good color stability
Minimal odor
High polishability
Automix
Disadvantages
High cost

Chemical cured
Light cured only
Multi-phase

Luxatemp
Integrity
Protemp II
Protemp Garant

Inlay/Onlay
Fermit
Intertemp
Mirage
Crown and Bridge
Triad

Iso-Temp Resin
Provipont DC Isocyanate-
polyol/dimethacrylate
Unifast LC Methyl methacrylate

Matrix
Cooling Procedures
Volume of material

Flextural Strength
0 20 40 60 80
Flextural Strength (MPa)
Jet
Protemp G
Luxatemp
Iso-Temp
Flextural strength measures materials resistance to bending and fracturing.

Volumetric Shrinkage
0 2 4 6 8
Iso-Temp
Luxatemp
Protemp G
Jet
% Volume Shrinkage
24 hours
1 hour

0
5000
10000
15000
20000
25000
30000
35000
PSI
Compressive Strength
ProTempII
Jet
Snap
Integrity

0
1000
2000
3000
4000
5000
6000
PSI
Tensile Strength
ProTempII
Jet
Snap
Integrity

0
2000
4000
6000
8000
10000
12000
PSI
Transverse Strength
ProTempII
Jet
Snap
Integrity

0
100
200
300
400
500
600
700
Kg/cm 2
Transverse Strength
Alike
Jet
Protemp
Triad
Trim
Snap
Wang RL, Moore BK, Goodacre CJ, et al. A comparison of resins for fabricating
provisional fixed restorations. Int J Prosthodont 1989; 2:173-84www.indiandentalacademy.com

Temperature Change During Cure
0 5 10 15 20 25 Degrees C
Snap
Jet
ProTempII
Integrity

Wear Resistance
0 5 10 15 20
Iso-Temp
Luxatemp
Protemp G
Jet
Microns of Wear
10,000 cycles
5,000 cycles
2,500 cycles

Marginal Dicrepancy (Indirect)
0 50 100 150 200 Micrometers
Snap
Trim
Triad
Protemp
Jet
Alike
Wang RL, Moore BK, Goodacre CJ, et al. A comparison of resins for fabricating provisional fixed
restorations. Int J Prosthodont 1989; 2:173-84www.indiandentalacademy.com

Marginal Discrepancy (Direct)
0 0.1 0.2 0.3 0.4 0.5 Millimeters
Jet
Splintline
Triad
Unifast LC
Protemp G
Provipont
Tjan AH, Castelnuovo J, Goichi S. Marginal fidelity of crowns fabricated from six prorietary
provisional material. .Journal of Prosthetic Dent 1997;77:482-485www.indiandentalacademy.com

Toothbrush Abrasion Test
0 5 10 15 20 25 30 35
Volume Loss
mm3
Snap
Trim
Triad
Protemp
Jet
Alike
restorations. Int J Prosthodont 1989; 2:173-84www.indiandentalacademy.com

CUSTOM PROVISIONAL

Self cures to a rubbery stage and is light
cured for the final set
Contains Ethoxylated Bis-GMA and Urethane
dimethacrylate resin

Bis GMA composite resin formulation
Cartridge dispensed
3 shades: A1, A2, A3.5
Precise mixing ratio every time

2 Shades
Low heat release
Easy to dispense
No odor
Durable
Good esthetics
3 shades
Low heat release
Automix
No odor
Durable
Excellent esthetics

Dual cure
Automix
Difficult to finish and
polish
Stain resistance low

 Impression of Diagnostic wax-up
 Matrix fabrication and shade selection
 Place material in matrix
 Air and water prevents pulp damage
 Removal and replacement offsets polymerization
shrinkage
 Trim and polish with pumice

No direct monomer exposure
Less chairside time
More expensive
Impression of prepared teeth
Reline prefabricated
restoration

Extrinsic Characterization allows the placement of colorants
and modifiers in specific areas. Lowering the value, increasing
the intensity or modifying the color, placing specific details of
characterization and accenting interproximal areas are a few of
the applications.
Minute stain Colored Chalk Light Cured Resin

Advantages
Nonstress bearing
preparations
Low curing temperature
Low shrinkage
No mixing
Ease of use and repair
No cement required
Disadvantages
Expensive
Radiolucent
Nonpolishable
Low strength
Low wear resistance

 Medium and fine cuttle disks, pumice, and acrilustre
developed significantly smoother surfaces on composite
resins than without acrilustre.
 For unfilled resins, the use of acrilustre was not
significantly different.
restorations. Int J Prosthodont 1989; 2:173-84

Ultraviolet Irradiation
Elevated Water Temperature
Color Stability Test
Extrinsic Stains
restorations. Int J Prosthodont 1989; 2:173-84

Good marginal seal
Low solubility
Adequate working time
Convenient dispensing
Provisional polymer compatibility
Strong but easily removed

Noneugenol cements: Nogenol and Dycal
Eugenol Cements: Temp-bond and IRM
Light and self curing cements : Provilink

Heat processed acryl resin provisionals
Polyethlene fiber reinforcement

Provisional restorations/ Labial orthodontics

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