http://revach.net/article.php?id=4836

Section: Halacha   Category: Tshuvos
Rav Shlomo Zalman Auerbach - Braces & Crowns, Is There A Problem Of Basar V'Chalav?

Do people who have crowns, braces, and other foreign objects that remain in their mouths during eating have a problem with the issur of Basar V'Chalav because of the food that gets absorbed in them?

Rav Shlomo Zalman (Halichos Shlomo Erkai Refuah 2:165) gives two reasons why there is nothing to be concerned about. First he says that most food that goes into ones mouth is from a Kli Sheini and does not have the power to affect anything in the mouth. Even according to the opinion that a solid food retains its status of Kli Rishon, that is only if remains hot enough to be deemed Yad Soledes Bo, which is not the case for food that you would put in your mouth.

Even if food is absorbed in the braces or crown, says Rav Shlomo Zalman, the heat in the mouth spoils it very quickly and it no longer has the power to make something treif.

Important Note: We bring this tshuvah as a starting point for discussion and not to convey any halacha. We try to convey the Tshuva to the best of our ability. We admit that our understanding may not be accurate. One should learn the tshuva to verify the accuracy of our interpretation. Please understand that this Tshuva may not be the final word on this topic. One should consult a Rav before drawing any conclusions.