| 21. | In the conducted study, it was found that hydroxyapatite growth was occurring on porous silicon areas.
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| 22. | Actually, tooth enamel is predominantly composed of hydroxyapatite, with a minor amount of organic component.
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| 23. | An acidic environment will draw the hydroxyl group out of the hydroxyapatite, causing it to dissociate.
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| 24. | One example of a hydroxyapatite cement forming reaction is that of tetracalcium phosphate and dicalcium diphosphate dihydrate:
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| 25. | Then, the hydroxyapatite crystals of enamel demineralize, allowing for greater bacterial invasion deeper into the tooth.
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| 26. | Seventy percent of bone consists of hydroxyapatite, a calcium phosphate mineral ( known as bone mineral ).
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| 27. | Several studies have shown that hydroxyapatite synthesis via wet-chemical route can be improved by power ultrasound.
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| 28. | The acids diffuse into the tooth surface and dissolve the carbonated hydroxyapatite mineral that consecutively forms a carious lesion.
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| 29. | As clay minerals promote biomineralization, the presence of bacteria and clay minerals resulted in calcium hydroxyapatite and calcite precipitates.
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| 30. | In bone removal, a reverse transport mechanism uses acid delivered to the mineralized matrix to drive hydroxyapatite into solution.
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