If you've been diagnosed with gastroesophageal reflux disease, often referred to simply as GERD, your oral health may be in danger, and even intervention to prevent the condition from doing further damage isn't going to be able to undo the damage that has already occurred. Luckily, porcelain veneers represent a good solution. What is GERD? GERD is a digestive disorder that occurs when the lower oesophageal sphincter (LES), a ring of muscle between your oesophagus and your stomach, is unable to fully prevent stomach acid from flowing back into the oesophagus; it is even possible for stomach contents to flow back into the oesophagus.