check out this page below and you CAN have a allergy to them also, seriously some gall of these people, when you complain and try to blame their work or what they did to you they get all hissy and insulted. I'm trying to find a good dentist around here. But it's so hard,
http://www.hindawi.com/journals/ijd/2012/752861/
Yes, you can have allergic reactions to those materials. Europe has shown this and has testing materials for it. If you have an allergy clinic in town, see if they can order test patches from Germany. My mom has been going through this for the last year and the clinic in her town is getting test patches from there. Hope you have gotten help. I see this was posted several years ago.
Ceramic and composite resin are not allergic material.Your dental symptoms may result from occlusion intead of allergy. Please google dysgeusia, you'll find sufficient information for your altered taste condition.
I've seen an immunologist, dermatologist, 2 GI docs, family doc, endo, I was told they could not test for allergy to dental material. Who do you suggest I try now.
Seeing an immunologist is advised.