Should cavities be filled with metal or porcelian? is metal harmful to us? what about onlays and crowns? also can it be harmful to people with epilepsy(my hubby has) people?
2006-09-11 18:40:26 · 8 answers · asked by Anonymous in Health ➔ Dental
Metal fillings can be either amalgam or gold:
AMALGAM is a mixture of mercury, silver, and a bit of tin. When mixed, these form an insoluble intermetallic compund which sets hard. It is easy to use, very durable, inexpensive, but silver-coloured. Altho some scare-mongers would have you worry about supposed health risks, these are not true, and it is still the most commonly used dental material. I still have 6 in my mouth placed 30 years ago.
GOLD is much more expensive, largely because it has to be made in a lab, and you need 2 appointments. Not very often used nowadays, altho sometimes for full crowns. An excellent material however.
White fillings are either composites or porcelain:
COMPOSITES are the most common white filling, but are sometimes mistakenly called porcelain by patients. They can be placed in one session, and can be used in a variety of situations. Not as durable as amalgam/gold, and cannot be placed in the same variety of situations.
PORCELAIN is a 2-appointment material like gold, which has to be made in a lab. Quite expensive, but better than composite. If you don't mind the cost and extra (and longer) appointments, then a nice choice.
Onlays and crowns depend on the requirements for your teeth, and the choice is largely made by the dentist on technical grounds. A crown requires more removal of tooth structure than an onlay.
The presence of epilepsy doesn't affect the type of filling you would receive as long as you are not fitting regularly. The difficulty with fitting is the enormous amount of pressure you can exert when clenching your teeth. In such cases of poorly controlled epilepsy, I would suggest full gold crowns over onlays (stronger), and amalgams over composite (more durable). Porcelain doesn't really apply - it can fracture.
Theoretically, I have heard that an OVERDOSE of local anaesthetic could trigger epilepsy, but I've never heard of actual cases.
2006-09-12 01:24:04 · answer #1 · answered by Dr Matt W (Australia) 6 · 1⤊ 0⤋
Porcelain fused to metallic crowns are the most sturdy crowns attainable. yet they do no longer have the organic translucence that non-metallic porcelain crowns have. the biggest downside to an all porcelain crown is it truly is at threat of fracture. No all-porcelain crown can ever be as reliable or more suitable than a porcelain fused to metallic crown besides the very undeniable reality that many dentist fall for the hype from manufacturers. PFMs have a really lengthy heritage of fulfillment that each human being porcelain crowns do no longer have.
2016-11-26 19:12:59 · answer #2 · answered by ? 4 · 0⤊ 0⤋
The composite seem to be safest for now. I know that my
dentist encourages the replacement of the metal fillings.
There have been a lot of medical studies about the toxicity
of the mercury in the metal fillings and even one report that
linked the high suicide rate of dentists to being around the
metals too much. So, go for the composite.
2006-09-11 18:57:10 · answer #3 · answered by Caiman94941 4 · 1⤊ 0⤋
Well this could be very debatable. Metal could act as an antenna I guess and could actually receive hazardous Microwaves. They say cell phone are hazardous and to point the antenna away from our head, which I not figured that one out with a short antenna. Personally I not think it matter, but, metal can also cause a taste due to certain foods with an acid content. All I know.
2006-09-11 18:49:58 · answer #4 · answered by Snaglefritz 7 · 0⤊ 0⤋
Can't answer the health side of your question, but I wish they were always done with porcelian. It looks horrible with all those silver or gold spots in your teeth. Almost worse than the cavities themselves. Almost
2006-09-11 18:47:20 · answer #5 · answered by dreamangel263 2 · 1⤊ 1⤋
do some research on gold crowns
the fillings you speak of are composite not porcelain
both are OK
i have gold crowns and i have had older amalgam(metal)fillings replaced with composite
this is my preferred choice
2006-09-11 19:20:28 · answer #6 · answered by Button Face 4 · 0⤊ 0⤋
hello~!I am a girl from China!Have you been to?China is famous for porcelain,I also like porcelain very much~^o^ I think it is very beautiful,in China every families have a lot of porcelain bowl and dish,there are nice.How do you think about it?(*_*)
2006-09-11 19:06:48 · answer #7 · answered by 伊人 1 · 1⤊ 0⤋
""Metal"" fillings last longer
2006-09-11 23:36:08 · answer #8 · answered by Hannah_banana_06 1 · 0⤊ 0⤋