California Air Tools 4610A-220V Instruction Manual Page 33

  • Download
  • Add to my manuals
  • Print
  • Page
    / 52
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 32
Porcelain Veneer Kits
Accolade
TM
PV
Try-In Composite Pastes
A Simpli ed System For Bonding Porcelain Veneers
Raymond L. Bertolotti DDS
Over 25 years of clinical experience led the author to the following conclusions about porcelain veneers:
1. Most porcelain veneer bonding systems are needlessly complicated.
2. Most, if not all, try-in pastes are unacceptably off true color.
3. Water or glycerin based try-in pastes are a source of contamination, often leading to veneer failures.
With these points in mind, a new porcelain veneer bonding system was designed to be problem free. The system is
known as Accolade PV, by Danville Materials.
First lets discuss try-in pastes. Most are water or glycerin based, not true to color of the composite resins that
are subsequently used to bond the veneers. Accolade PV uses a patent pending composite try-in paste, with the same color as
Accolade PV, but with a very long working time created by reducing the activity of the catalyst. After try-in, it is not
necessary to completely remove the try-in composite. The polymerization activity of the nal bonding composite will
polymerize any remnants of the try-in composite. Thereby concerns 2 and 3 above are solved.
The author nds that Accolade PV Translucent shade will produce an acceptable veneer shade about 80% of the time.
The most commonly needed shade to correct a try-in is a slightly opaqued white, Accolade PV Light. Occasionally an even
lighter, more opaque shade is needed, called Extra Light. For an even whiter result, Accolade PV has a shade called White
Opaque. It is usually too white and opaque to use by itself; instead it is used as a blending shade. In the unlikely event that
darker is needed,
Danville offers Accolade PV Yellow and PV Brown, as well as dark Vita shades of Accolade.
With only 6 well-selected shades, Accolade PV solves the problem that most veneer systems are unnecessarily
complicated.
Here is an illustration of a try-in on a dark tooth ( gure 1), using Accolade PV, On tooth number 9, two Try-In Pastes are used
simultaneously ( gure 2). On the distal half is Accolade PV Light, the mesial is Accolade PV Translucent. The try-in is pictured
in gure 3. The Light shade was selected, based on this try-in. The nal veneer is pictured in gure 4. It produced an excellent
shade match when bonded along with Accolade PV Light. The adhesive used was Danville’s Prelude.
gg
Figure 1 (before) Figure 2
Figure 3 (try-in)
Figure 4 (after)
33
Call 800/827-7940 or visit danvillematerials.com
Page view 32
1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 51 52

Comments to this Manuals

No comments