Re: Exos & anlylosis

From: W_B (no_one_at_nowhere.net)
Date: 08/21/04 

Date: Sat, 21 Aug 2004 17:26:34 GMT

On Sat, 21 Aug 2004 16:46:07 GMT, stovepipeTR@ASHglobetrotter.net
(StovePipe) wrote:

>W_B <no_one@nowhere.net> wrote:
>
>> >more efficient way... I'd cut depth indication grooves with a 330, and
>> >then just waft the crown down with the football. Safe but long...
>> >
>> >Thanks to both DrS and W_B
>> >SP
>>
>>
>> Remember that DrSteve's prep is for a CEREC !
>>
>True... But you need access (with my record in Endo...) and you're going
>to crown it anyway... In fact, last week I cut a LL wisdom tooth to
>recieve a crown (all gold) and I cut it to recieve a crown with intra
>pulpal post (like you would for CEREC.) . The lab guy phoned to say he
>wants me to correct certain aspects, and get a better impression, but he
>also feels it's a good idea: the tooth was quite intact b/4 Endo; small
>MO Am.
>
>I'm going to try the impression technique that Ian Shumann showed us at
>the last ODQ meeting in Mtl: You take a triple tray double impression
>with putty or heavy body polysiloxane and then you re-seat the
>impression with light body material. The pressure generated pushes the
>light bodied material sub-G and fills in the detail. Hope it works....

It does.

Test your materials first though. Mix up some of your heavy body
or putty and let it set. Then mix your light or wash material and
extrude onto the set heavy material. After the wash has set
make sure that the two materials are bonded to each other
by trying to pull the layers apart.
>
>The only problem I have with this technique is the potential extrusion
>of the opposite tooth/teeth as you take the offending tooth out of
>occlusion. Guess I'd have to have a temp ready to go right away.
>
>Re the Brassler bur: I'll check that out. I still find it illogical that
>nobody has thought to make a long shank bur for Endo access with depth
>marks on it for ease of measuring progress.

Perhaps because it is not needed ?

Measure your favorite burs and memorized their length.

>
>Thanks again to both DrS and WB
>Cheers
>SP 

--
W_B
wubbabubbazG@RBAGEyahoo.com
Take out the G'RBAGE

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