How much gold per tooth or crown??
Quote:
>> On Sat, 29 Mar 2008 11:30:17 -0400, "Amatus Cremona"
>>> often
>>> They charge you for the amount of gold placed in the casting well
>>> (sometimes)
>> So if they are casting with 8 - 10 dwt, they charge for that weight ?
>> Even though the rough casting may only weigh 3.5 dwt after removing
>> from the sprue ? Hmmm.....
>> Could see Rough Casting Weight after removal of the sprue/button
>> plus ~10% for cutting loss.
>> Guess it depends on the lab policy.
>> A very interesting perspective though.
>>> rather than the finished weight of the gold. They want to
>>> re-coup the cost of the gold that is ground away and never recovered.
>>>>> On Fri, 28 Mar 2008 08:37:37 -0400, Steven Bornfeld
>>>>>>> Dear newsgroup,
>>>>>>> In re the header above, can anybody put me in the ballpark in term of
>>>>>>> weight please?
>>>>>>> Thanks in advance!
>>>>>> Depends upon the alloy used and the size of the crown. Not unusual to
>>>>>> have maybe 1/4 to 1/3 oz alloy. Most high noble casting alloys are
>>>>>> maybe 70% gold. This is just off the top of my head.
>>>>>> Steve
>>>>> What are you putting in peoples mouths SB ?
>>>>> 6 unit full cast gold FPD's ?
>>>>> Average molar crown would be 2 - 3 dwt
>>>>> Even at 4 dwt that's only 1/5 oz Troy.
>>>>> 1 dwt = 1.55 gm
>>>>> 20 dwt = 1 oz Troy.
>>>> For a full cast crown? My lab must have his thumb on the scale.
>>>> Steve- Hide quoted text -
>> - Show quoted text -
> Are you trying to figure out the s{*filter*}value of an old gold crown
> Exactly! Several of them of fact.
I sold my scrap, collected over many years, a couple of years back.
You don't get nearly the value of the gold--the stuff is often dirty,
and refining costs something also. I didn't bother trying to even
estimate the amount of gold I really had. A good jeweler may be able to
tell you, or alternatively you can go to a known, ethical refiner such
as Garfield.
Steve
