Dental X-Ray Unit
Dental X-ray Unit
History
Discovery of x-ray
Professor Wilhelm Conrad Roentgen * 1895 discovered the first example ionizing radiation * the key to his discovery was device called a Crooke’s tube.
Scientists and Researchers
* Dr. Otto Walkhoff * the first to expose a prototype of a dental radiograph. * accomplished by covering a small, glass photographic plate with black paper to protect it from light and then wrapping it in a sheath of thin rubber to prevent moisture damage during the 25 minutes he held it in his mouth.
Made the first dental radiograph
* Dr. William Herbert Rollins * one of the first to alert the profession to the need for radiation hygiene and protection and is considered by many to be the first advocate for the science of radiation protection
* Dr. William James Morton * took radiographs on skulls and revealed an impacted tooth, which was otherwise undetectable clinically
* Dr. Edmund C Kells * Was the first to put the radiograph to practical use and may have taken the first radiograph on a living subject. * He was a New Orleans dentist, demonstrated the first film taken on a live patient 3 months later in 1896. Kells was a prolific inventor and writer, in dentistry and other field. (He was one of the first to use electricity in dental office). * He often held the film in the patient’s mouth during the long exposure, or used his hand as the object while adjusting the exposure, since these early machines had unpredictable emissions. Unfortunately, he did not realized the dangers from his own continual X-ray exposure and developed cancer in his right hand, which later progressed through his arm and shoulder. * After forty-two operations, the intense suffering caused him to take his own life in 1928, at the age of 72.
Evolution of the Dental X-ray Machine * 1913: Coolidge hot cathode vacuum tube, invented by Dr. W. D. Coolidge * Mid-1950s: Variable
History
Discovery of x-ray
Professor Wilhelm Conrad Roentgen * 1895 discovered the first example ionizing radiation * the key to his discovery was device called a Crooke’s tube.
Scientists and Researchers
* Dr. Otto Walkhoff * the first to expose a prototype of a dental radiograph. * accomplished by covering a small, glass photographic plate with black paper to protect it from light and then wrapping it in a sheath of thin rubber to prevent moisture damage during the 25 minutes he held it in his mouth.
Made the first dental radiograph
* Dr. William Herbert Rollins * one of the first to alert the profession to the need for radiation hygiene and protection and is considered by many to be the first advocate for the science of radiation protection
* Dr. William James Morton * took radiographs on skulls and revealed an impacted tooth, which was otherwise undetectable clinically
* Dr. Edmund C Kells * Was the first to put the radiograph to practical use and may have taken the first radiograph on a living subject. * He was a New Orleans dentist, demonstrated the first film taken on a live patient 3 months later in 1896. Kells was a prolific inventor and writer, in dentistry and other field. (He was one of the first to use electricity in dental office). * He often held the film in the patient’s mouth during the long exposure, or used his hand as the object while adjusting the exposure, since these early machines had unpredictable emissions. Unfortunately, he did not realized the dangers from his own continual X-ray exposure and developed cancer in his right hand, which later progressed through his arm and shoulder. * After forty-two operations, the intense suffering caused him to take his own life in 1928, at the age of 72.
Evolution of the Dental X-ray Machine * 1913: Coolidge hot cathode vacuum tube, invented by Dr. W. D. Coolidge * Mid-1950s: Variable