one of the most common questions I get about Brooke sir is how difficult is it to cut off and
as long as you have the right burr it's really not difficult at all and so I'm gonna cut this Brooks
or crown off that you see right here this is azor cut diamond from axis dental it's a very fine grit
diamond which is a little counterintuitive you would think you need something really coarse to
cut through something really tough like zirconia but that's not true you need a fine grit you can
see I'm just a lay it against the tooth and then pull it away lay it against the tooth and pull it
away lay it against the tooth pull it away got a lot or water spray going on there and there's
the tooth you can see the two start in the show through the difference in color between
the zirconia and the prep makes it really easy to know when you've cut far enough so in that
respect that's kind of like cutting off a typical pfm crown it's not that difficult to see the shape
of the burr here is not that important I'm using a bird here with a whiter tip because it's a Supra
gingival margin I go to a tapered narrow tip burr when I'm really close to the gingiva and now that
I've gone all the way through the buckle and the ACLU's law I'm going to take my Christensen
crown remover and actually go inside of here that slots a little wider than I'd want it to be from
that wide diamond but the white diamond was more efficient and boy you can see I'm really having
a crank there and that distal half comes popping off of there and that's not only a testament to
the strength of the brookster but to the cement the rely X looting plus cement from 3m espe that
we've used so the whole mesial half of the crown has not even moved yet and so we've got to cut
through that again because you just can't grab onto that with rheostats and pull that off so this
is one of the difficulties in these all ceramic crowns as opposed to a pfm is you can't bend the
framework Bend the substructure and then remove the whole thing when you go to bend it it breaks
and you have to take it off in pieces so typically we're taking off three maybe four different pieces
of crown usually for I would say so we took up the first one I'm going to crack through the mesial
marginal Ridge and separate the lingual and buccal portions and there goes the mesial-buccal portion
of the crown coming off and actually usually you would have to cut this in half one more time I get
lucky here and just push on it and the vibration from the handpiece is broken the cement and bond
so I can actually pull this mesial-lingual piece off usually you would have to cut that in half
again and then maybe even prep off the last little eighth of crown from the tooth so again the key
point to remember here is you need to have one of those fine grit desert cut burs available from
axis dental they're also available in the Brooks or adjustment and polishing kit so you do not need
a separate barrettes those same birds that are in the adjustment and polishing kit that cut through
their Konya and as long as you do it with steady pressure off and on lots of water spray you'll be
fine you won't see any sparking and you'll be able to see the differentiation between the crown and
the tooth and get the Brooks or crown off safely so in this introduction to Brooks or restorations
I've mentioned my two favorite indications the first one is when we have limited in Oracle space
on a preparation where we should use cast gold or a metal occlusal but the patient doesn't like the
look of cast gold or metal metal occlusal this is a perfect place to put a Brooks or restoration in
place the second place is any time I see a broken pfm or any kind of broken porcelain
when I see a patient it's got a strong enough bite to do that kind of damage I want to go with
a virtually unbreakable material like Brooks er brookster can also be used for inlays and onlays
so it really can be a cast gold replacement if you want it to be if your patients don't
like cast gold I happen like cast gold inlays and onlays better than composite or porcelain so when
patients won't accept those that's when I moved to Brooks or restorations on behalf of all of us
here at the laboratory thanks for your time and your continued commitment to quality dentistry
you