Talk:Hydroxylapatite

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the international association of mineralogy strongly recommends the word hydroxylapatite rather than hydroxyapatite. I suggest this article is renamed to hydroxylapatite.

Bedrupsbaneman 16:32, 31 May 2005 (UTC)

Should Hydroxyapatite be listed as an alternate name? Is it an older spelling? RJFJR 18:42, 22 September 2005 (UTC)

I don't know about it being older but the alternate spelling is certainly in use in solid-state chemistry and quite a few of the medical articles I've read also call it Hydroxyapatite. If anyone can get a source for that recommendation then it's worth mentioning in the article IMHO --Edith The Hutt 16:10, 9 February 2006 (UTC)

[edit] Tooth enamel use

The tooth enamel page says it's made of hydroxylapatite. Can someone add to this article why this substance isn't used for dental fillings? It would seem like a natural choice if the substance is identical. (I also asked this over at the dental fillings talk page, and that article would benefit from the answer to this question, if anyone knows.) Tempshill 06:30, 20 January 2006 (UTC)

IIRC it's about 90% hydroxylapatite yes, I'd speculate it's got something to do with the difficulty of forming it and that HAp in tooth enamel has a pretty distinctive microstructure which is very difficult to reproduce. That and maybe the fact you want to replace dentin too, I'm not a dentist or a bio-materials engineer so I couldn't really comment on that aspect. --Edith The Hutt 16:10, 9 February 2006 (UTC)

On usage of hydroxylapatite for small fillings: http://www.newscientist.com/article.ns?id=dn7058

--Md2perpe 14:07, 26 February 2006 (UTC)