Baking Soda (Sodium Bicarbonate) and Dakins Solution (a 20 to 1 dilute solution of 7% Sodium Hypochlorite NaOCl) cannot do what you claim happened. Neither of those substances can effect any ceramic restorations. Not at all. Sodium BiCarbonate has a Mohs hardness of only 2.5 while normal tooth enamel has a hardness of 5. Ceramic surfaces have a Mohs hardness of 5 to 7 depending on the material used. That is on the statement of one of the world's top dental implantologists who uses all manner of materials for restorations. This protocol is use for every implant patient we have with exactly those kind of restorations and even other using plastics. He has never seen either do any damage to any such restoration in over 40 years of practice.
I call BS on your post.
not baking soda, it was the bleach.
And it’s NOT BS. I live with my ruined teeth.