Hi I’ve just had

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Hi

I’ve just had a replacement gold crown fitted to a lower molar, privately (£635), and have raised, with the dentist, the issue of, what I consider to be, excessive scratches on the surface of this new gold crown. These scratches, which are visible on the outer surface, occurred when the dentist was scratching, and scraping off the excessive bonding agent, which had stuck to the crown, during fitting. The dentist’s response, to me, was to point out that high content gold crowns are easily scratched, and that he could try to polish-out these scratches, if I return to the surgery. My question is: Is it normal practice to scratch off/scrape off excessive bonding agent from a gold crown, thus marking a ‘soft’ surface that the laboratory technician, who made the crown, had taken great pains to polish to perfection. And, if it is normal practice, shouldn’t my particular dentist have automatically ‘polished’ my gold crown, at the conclusion of the fitting process?

Any feedback would be appreciated.

Many thanks

John Dyson

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Asked on 08/02/2013 12:00 am
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Private answer

Dear John,

Is is normal to have to scrape away modern cements used to bond crowns to teeth. These materials are designed to stick to the teeth, set very quick and have a tendency to be difficult to remove.

Gold is soft and will scratch. It can be re-polished if significant or if it will prevent good dental hygiene, if neither than it will have no effect on the performance of the crown.

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Posted by Dental Professional (Questions: 0, Answers: 1475)
Answered on 08/02/2013 12:00 am
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As Neil suggests these cosmetic marks should not affect the performance of the crown and it is possible that you dentist was more focused on removing excess cement (which if left could form a food trap) and didn't notice them in the brightly lit environment of the dental practice
If the surface is soft enough to mark then is should re-polish under normal function as food passes over the surface but I am sure your dentist would be happy to polish the marks
I must admit that I usually get requests to "un-polish" gold crowns to make them less shiny and noticeable which is usually achieved using an intra-oral sand blaster and/or abrasive to dull the surface to a matt finish
Such a matt finish is also useful to allow one to check the way the new crown meets with the opposing teeth as any contact points will become shiny and can be adjusted if they are excessive

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Posted by Dental Professional (Questions: 0, Answers: 1475)
Answered on 08/02/2013 12:00 am