Although gum recession is only a loss of a little bit of gum tissue, it can be a very big problem. Many patients are concerned because it is aesthetically displeasing. Gum recession can make the teeth look longer and older than they actually are. Without the protection of the gums, the neck of the tooth where the gum has receded may look yellower or even be indented. Many patients complain of sensitivity to cold, hot and sweet things around teeth that have gum recession. They may need to use sensitive toothpastes or get fillings to cover and protect the areas.