When a maxillary canine hasn't erupted, the usual way to find out whether it lies buccal or palatal is two radiographs read by the principle of parallax [1]. Four studies, three in patients and one on a laboratory typodont, have scored that read against a known position.
Yes. Under the Ionising Radiations Regulations 2017 (IRR17), a dental practice in Great Britain must hold a registration from the Health and Safety Executive (HSE) before it uses X-ray equipment [1][2]. Registration is the middle of three grades [3].
Studies from 1976 to 2022 tested whether visible nutrient canals go with hypertension, and they split. Several report canals more often in patients with hypertension, and two found no significant difference.
A radiation protection supervisor (RPS) supervises dental radiography so that staff follow the practice's local rules.
Yes. A dental practice in Great Britain with X-ray equipment must consult a suitable radiation protection adviser (RPA) under regulation 14 of the Ionising Radiations Regulations 2017, and appoint the RPA in writing, stating the scope of advice.
In Great Britain, IR(ME)R 2017 requires a dental practice's employer to provide for clinical audit "as appropriate" and for appropriate action on its results, with no interval set.