1.0Lowell Cosmetic Dentistry Bloghttps://www.drszarek.com/blogAllSmileshttps://www.drszarek.com/blog/author/allsmiles/rich600338<blockquote class="wp-embedded-content" data-secret="aDM01yfWsy"><a href="https://www.drszarek.com/blog/hello-world/">Porcelain crowns changing color?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.drszarek.com/blog/hello-world/embed/#?secret=aDM01yfWsy" width="600" height="338" title="“Porcelain crowns changing color?” — Lowell Cosmetic Dentistry Blog" data-secret="aDM01yfWsy" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.drszarek.com/blog/wp-includes/js/wp-embed.min.js </script> Just over four years ago, my 15-year-old son got porcelain crowns on three of his front teeth. Over the past two years, however, we have noticed that these teeth have gotten significantly darker and are no longer whiter than the teeth on either side. (They were when the crowns were first applied.) Do you know […]