The relationship between gastro‐oesophageal reflux disease and dental erosion

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Abstract
summary It is well known that acid regurgitated from the stomach into the mouth will erode teeth. Conditions such as anorexia and bulimia nervosa, chronic alcoholism and gastric disturbances cause palatal dental erosion. The common factor in these conditions is the role played by the stomach and oesophagus in the acid movement. Acid moving through the lower oesophageal sphincter into the oesophagus is described as gastro‐oesophageal reflux (GOR). In some patients the acid movement becomes chronic, painful and requires treatment and is termed gastro‐oesophageal reflux disease (GORD). It is felt by many gastroenterologists that GORD is a failure of the anti‐reflux mechanism, which is predominantly controlled by the lower oesophageal sphincter (LOS). Regurgitation is the reflux of gastric juice through the upper oesophageal sphincter and into the oral cavity. Once the acid has reached the mouth the potential exists for damage to the teeth. This paper reviews the role of GOR, GORD and regurgitation in the aetiology of dental erosion.