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Medical Forum / General / Dentistry / August 2007High Noble vs. Gold Crown
I saw my dentist last week. Tooth #31 has old fillings and some small cracks and he feels I need a gold crown. He is not on my dental plan and charges $1500. I have a lot of faith in him however so may go with it. I looked in my insurance book (Northeast, reduced fee) and see that they don't list gold, just high noble, so I called. They will take 20% off any services not listed if of course, I use one of their dentists. I had tooth 29 and 30 extracted 2 years ago and chose not to do implants or a bridge so the dentist feels that a lot of pressure is being applied to tooth 31. Tooth 32 is horizontally impacted and this further concerns me, I am afraid of the bottom of the crown touching it but the dentists I have seen tell me there's enough space and it shouldn't be a problem. Never had it extracted because they tell me at my age if it hasn't acted up, it probably won't. In any case, my question is, do I really need a pure gold crown or would a high noble do? On top of this, he said when he opens the tooth, he may see that I need a root canal and have to send me to an endodontist, so this is geting really expensive. It's a vital tooth so I'll spend what I have to but any advice would be so appreciated. >Never had it extracted because they tell me at my age if it hasn't acted >up, it probably won't. In any case, my question is, do I really need a [quoted text clipped - 3 lines] >tooth so I'll spend what I have to but any advice would be so >appreciated. Noble metals are gold, platinum and palladium. There are some of each in a high noble metal crown but the predominant metal is gold, so we call it a gold crown for convenience but it is an alloy as pure gold is to soft to make a crown out of. $1500 seems pricey for just a crown to me but know that dental fees vary widely by geographic region. IOW expect to pay more in Manhattan, NY than in Manhattan, KS. So Newbie, are you saying that when he said "It will have to be gold" he actually meant noble? He is on vacation now so I can't ask him. Is there no such thing as a pure gold crown? Yup, the prices here are crazy. >So Newbie, are you saying that when he said "It will have to be gold" he >actually meant noble? He is on vacation now so I can't ask him. Is there >no such thing as a pure gold crown? Yup, the prices here are crazy. Right. 24K gold is too soft to make a crown out of. So a casting alloy is used, hi-noble refers to the ammount of noble metals as a percentage in the alloy. Don't remember off of the top of my head what the percentages are. Maybe one of the other docs can fill us in. > Don't remember off of the top of my head what > the percentages are. Maybe one of the other > docs can fill us in. Here is a chart from one supplier that lists the percentages in several High Noble dental alloys. (Nothing special about this supplier, it just happens to be the first one I found on Google) http://www.bakerdental.com/porccomp.html Vaughn >> Don't remember off of the top of my head what >> the percentages are. Maybe one of the other [quoted text clipped - 7 lines] > >Vaughn Thanks Vaughn. This chart is more suited to full cast restorations: http://www.bakerdental.com/crownbridge.html > This chart is more suited to full cast restorations: > > http://www.bakerdental.com/crownbridge.html Out of sheer curiosity about my new crowns (or molar bling), are full cast molar crowns typically one type (ie, soft, medum, etc)? Had most of my crowns done today; am quite delighted with them (they don't trap food! they don't hurt!) and am considering becoming a Bond villian: Gold Molar.  Signature"Did Father shoot him? I will eat Grandfather for dinner." - Helen Keller, on learning of the death of her grandfather email: aripee at inanna . com 'Full cast crown' is a non-specific designation. There is no way to tell what alloy was used. It could be non-precious, noble, or high noble. Type II or III (even IV, but unlikely). The dentist who did the work should have record of what alloy was used. You would have to ask. I use a type III, high noble alloy myself (a type III alloy is the most common used for single cast crowns, but I don't know whether np, n, or hn alloys are the most popular). D > Out of sheer curiosity about my new crowns (or molar bling), are full > cast molar crowns typically one type (ie, soft, medum, etc)? > > Had most of my crowns done today; am quite delighted with them (they > don't trap food! they don't hurt!) and am considering becoming a Bond > villian: Gold Molar. > 'Full cast crown' is a non-specific designation. There is no > way to tell what alloy was used. It could be non-precious, > noble, or high noble. Type II or III (even IV, but unlikely). > > The dentist who did the work should have record of what alloy > was used. You would have to ask. Sorry, forgot to mention that they are all high-noble full-cast crowns. Yes, I can ask when I have the final crown done; not that it matters - I was just curious (and my friends, who've never seen that much dental work in one place, keep asking how 'gold' my gold teeth are). Signature"Did Father shoot him? I will eat Grandfather for dinner." - Helen Keller, on learning of the death of her grandfather email: aripee at inanna . com Probably a type III gold alloy. I'm at home so I don't have the actual percentages that are in the crowns from my lab. I would guess around 12K (which would be 50%), but it could be anywhere from 10K to 14K. Steve >>'Full cast crown' is a non-specific designation. There is no >>way to tell what alloy was used. It could be non-precious, [quoted text clipped - 7 lines] > was just curious (and my friends, who've never seen that much dental > work in one place, keep asking how 'gold' my gold teeth are). > So Newbie, are you saying that when he said "It will have to be gold" he > actually meant noble? Not to speak for Newbie, but yes. You wouldn't want a 24K gold crown. It would be way too soft. IIRC, crowns are between 10-14K. Some high noble dental alloys are harder than those used for single crowns and are not even gold colored. Higher amounts of platinum &/or palladium make them look like "white gold" in the jewelers case. D
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