What’s an effective BU material?

I’m looking for an alternative to Encore, by Centrix, for my core BU. I like it however I am concerned about the bond strength with the Allbond2 light cured resin. I have heard that Bisco’s self-cure core BU material will bond to light cured resin but does it set as quickly as Encore and is it as easy to dispense? Anxiously awaiting your experience.
davidellisdds
Official Townie
Member # 9349

Jeneric-Pentron’s Build-It FR, tooth-colored, dual-cured, gun dispensed, fluoride-releasing. Bonds to all composites and composite-based luting agents when luting is done with appropriate bonding agent(s). I recommend it without reservation. It is superior to Encore in every way imaginable, I can say as I did use Encore for a while. I’ve been using the B-I FR for about a year now since Mike Barr turned me on to it, and find it excellent both for its intended use and a number of other uses.
marshall_white_dmd
Official Townie
Member # 7916

Is there any reason I can’t just use normally bonded Revolution and Herculite as a core material?
rcyoungdds
Official Townie
Member # 8217

No reason at all apart from the pain of having to wait until it is fully cured, and having to add it in increments.
encino
Official Townie
Member # 7932

With the dual-cured Build-It FR you just bulk fill, zap it for a few seconds to initiate the cure, and then change burs, etc., while it continues to set, and start prepping, knowing full well that cure will continue to completion chemically!
marshall_white_dmd
Official Townie
Member # 7916

I'm sure that most on this forum will agree that nothing beats Build-It FR from Jeneric-Pentron. I absolutely love this stuff and even use it as a post cement with my JP Fibrekor posts when a post is needed. Handles great, cuts like dentin, dual cure, choice of 4 colors. I sound like an ad for JP. Awesome stuff.
toofdr1
Official Townie
Member # 8379

Marshall said it all...JP’s Build-It FR is da bomb!
Mike Barr
Moderator
Member # 8298

Hey rcyoung, if you use the dual cure for b/u or posterior composites you’ll love it so much you’ll do cartweels all over the office afterward...it makes life so much easy!
brodi
Official Townie
Member # 8516

Towners... Are those of you doing bonded posterior restorations (crowns mainly for this question)... also doing buildups back to ideal prep? I don't do buildups because your restoration is only as strong as it's weakest link. With a buildup you have two bonds-- the buildup to the tooth and the restoration to the buildup. To me, one bond is better than two. I just have the lab incorporate the buildup as part of my restoration, whether it is Belleglass, Targis/ Vectris, or Empress.
Tarun Agarwal
Official Townie
Member # 8682

For bonded posterior restorations such as Empress and Belleglass, I do not do a build up. Tarun, you are right about one bond being better than two. If I am doing a crown, then I'll usually do a buildup.
socalsam
Official Townie
Member # 8453

I also do this when I can, but when you need good taper it is nice to have a larger buildup. A small buildup sometimes works well and makes prepping the tooth easy. My main thing is making sure to get a good ferrule effect on the tooth. I usually end up subgingival to gain this effect.
desert rat
Official Townie
Member # 8580

Tarun, I would caution you against the wholesale abandonment of buildups–even in partial coverage restorations, whether gold OR porcelain, unless preparation form is ideal. While your dictum that "one bond is better than two," seems to make sense in terms of resistance to dislodgement, I'd beg you to re-think this. Frankly, I feel the weak link isn't the number of bond interfaces, but rather the bond between remaining tooth and WHATEVER it bonds to, whether that be buildup or restoration.

Imagine, if you will, the tooth after caries removal and removal of any old restorative. Now, bond upon it an indirect and rigid restoration, whatever you like: Empress, feldspathic porcelain, cast gold. There is a bonded interface there. And that bonded interface must resist compressive, shear, torquing and other forces during mastication AND it must do so through many, many thermocycles, and chewing cycles.

These failures rarely occur at the restorative/buildup interface, they more typically occur at the buildup/tooth interface. In a tooth restored without a buildup, that interface is no different than the buildup/tooth interface when a buildup is present.

Reason? IMHO, and that of some of the better minds in conservative restorative dentistry like Strupp, Christensen, Dawson and others is this: There is no ferrule! None at all, for the most part, circum-coronally. Interestingly, I've seen preps designed by some of the "foremost minds" on the lecture circuit whose preps lack even INTERNAL retentive modalities like boxes, potholes or axial grooves within boxes.
marshall_white_dmd
Official Townie
Member # 7916