In the past, lead aprons were commonly used in dental X-rays as a way to protect against radiation. In 2017, the ADA said it was no longer appropriate to use lead aprons when taking radiographs. However, recent research suggests that thyroid collars are also not necessary due to advancements in dental X-ray equipment and practices. According to a detailed review, modern technology significantly reduces stray radiation exposure, making lead aprons and thyroid collars sometimes unnecessary. The American Dental Association (ADA) has updated their guidelines to reflect these findings and to avoid repeated X-rays and increased radiation exposure caused by the use of unnecessary protective gear.

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