CHEMICAL	PROPERTY
BASE	BASE
Bis GMA	Resin Phase
2- 4 Di-hydroxybenzophenone	Ultra-violet absorber
N, N Dihydroxy Ethyl p-Toluidine	Resin Phase
Dihydroxy Ethyl p-Toluidine	Auto cure
1, 5 Hexane-Diol-Dimethacrylate	Resin phase
Ethoxylated Bis-Phenol "A" Dimethacrylate	Resin phase
N, N Dimethylaminoethyl Methacrylate	Photo cure
Camphorquinone	Photo cure
Sodium Fluoride	Caries inhibitor
Fumed Silica	Sub-micron filler
Barium Glass	Small particle radiopaque filler

CATALYST	CATALYST
Bis GMA	Resin phase
BHT	Polymerization inhibitor
Benzoyl Peroxide	Polymerization inhibitor
Triethylene Glycol Dimethacrylate	Rein phase
Aluminum Oxide	Filler
Fumed Silica	Sub-micron filler
Barium Glass	Small particle radiopaque filler

UNFILLED RESIN (Enamel Bonding Agent)	UNFILLED RESIN
Bis GMA	Resin phase
BHT	Polymerization inhibitor
Triethylene Gylcol Dimethacrylate	Resin phase
N, N Dimethylaminoethyl Methacrylate	Photo cure
Benzil	Photo cure
N, N Dihydroxy Ethyl p-Toluidine	Auto cure

Resin/Filler Ratio Pct. of Composite	Catalyst 38/62 Base 41/59
Filler Size of Composite	Sub Micron to 5 microns
Work Time	3' 00"
Set Time	10" 00"
Film Thickness of Composite	25 microns
Diametral Tensile Strength of Composite	5,000 psi
Bond Strength of Composite to Etched Enamel with a layer of Enamel Bonding Agent	40 MPa
Bond Strength of Confi-Quick One Part to etched dentin	30 MPa

As depicted in the drawing (below), PSI composite is of the hybrid variety with an optimal amount of submicron filler between the macro filler. It has been designed for use with veneers, inlays, onlays, Maryland Bridges, posts, crown and bridge applications. The 7 shade system includes extra light (bleached shades), universal light, dark yellow, light yellow grey, light grey, dark grey and opaque white enhance the background coloring of any vita* shade. The various shades may be mixed together and can be used as a simple light cured cement or mixed with catalyst for a dual setting mechanism.

At the optimal level, the submicron filler functions like "ball bearings" to enhance the movement of the larger macro filler. This results in a higher filler loading while still maintaining thixotropic handling characteristics. Since the viscosity of the composite is influenced by the particle size (surface area) of the submicron filler, every attempt is made to use consistent batches of Aerosil silica.

An optimal hybrid mix and ratio of resin to filler allows maximization of physical characteristics, enhanced diametral tensile strength, good compressive strength, lowered water sorption and film thickness, a higher Young's Modulus, higher fracture toughness, lowered polymerization shrinkage, lowered coefficient of thermal expansion, increased depth of cure, enhanced color stability and increased shelf life.

The PSI bonding resins are manufactured by Confi-Dental Products Co., A Subsidiary of Septodont, Inc., Manufacturer of High Quality Materials and Accessories For Improved Oral Health. Septodont is a company with a worldwide reputation for producing anesthetic in a tightly regulated, highly efficient FDA approved facilities in both North America and Europe. Septodont demands that the same strict quality control guidlines as its anesthetic facilities. Confi-Dental is FDA registered and an ISO 9001 Certified manufacturing facility that is in full compliance with GMP's (Good Manufacturing Practices) and participates in ADA Certification and Acceptance Programs as they apply to the products. PSI Dental repackages the bulk product into syringes and small bottles for sale in kit form or as individual syringe orders.