Depending on the patient’s needs, a dental bridge can replace anywhere from one to four missing teeth in a row. However, in most cases, bridges are used to replace only one or two teeth. The longer the bridge extends, the less stable it may become, especially if the natural teeth supporting the bridge aren’t strong and healthy. Ultimately, it becomes riskier to have a bridge replace three or more teeth. Implant bridges can lower this risk since implant are as strong and secure as natural teeth.