Periapical radiography is a commonly used intraoral imaging technique in dentistry. Periapical radiographs provide important information about the teeth and surrounding bone. The image shows the entire crown and root of the tooth which provides vital information to aid in the diagnosis of the most common dental diseases; specifically tooth decay, tooth abscesses and periodontal bone loss or gum disease. Additional important findings may be detected, including the condition of restorations, the presence of calculus or tartar, impacted teeth or broken tooth fragments and variations in tooth and bone anatomy.