Ectopic teeth periapical radiographs can be used to identify and localise ectopic teeth using a parallax technique where 2 periapicals are taken in different positions to assess the location. Radiographic Techniques Radiographs when used with the patientscase history and clinical examination are one of the most important diagnostic aids available to the dentist. Dental Radiography Describing dental radiographic lesions can be quite a challenge. . Different types of x-rays have different purposes depending on what the dentist is trying to see. Digital x-rays provide a much higher image quality than that of traditional film. Types and Uses of Digital Dental Radiographs. Select radiographic technique describe the USE and PURPOSE of intraoral and extraoral radiographic images of the following. Intraoral X-rays the most commonly taken dental X-ray provide great detail and are used to detect cavities check the status of. Dental ...