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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국치위생학회 한국치위생학회지 한국치위생학회지 제9권 제2호
발행연도
2009.1
수록면
111 - 124 (14page)

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This study analyzes through the review of literature and laws the exposure time, clinical frequency, and radiation exposure of intraoral and extraoral radiography as well as of panoramic radiography performed by dental hygienists in dental clinics, compares the dental radiology curriculums of radiological science and dental hygiene departments, and proposes the expansion of dental hygienists' radiography operations. The radiology curriculums were compared between the radiological science and dental hygiene departments of colleges. For new analysis by radiography for dental diagnosis, the exposure time, radiation absorbed dose, effective dose, and number of days of natural radiation were compared by the type of oral radiation films and radiographical techniques proposed by domestic and international studies. The exposure time of panoramic radiography is 15 seconds and it takes about two minutes for completion, whereas the exposure time of the standard radiography is 0.2 ~ 0.8 seconds and it takes 10 times longer for completion of the radiography of full mouth than the panoramic radiography. The standard radiography can cause distortions of radiation at severely curved parts of dental arch and palatopharyngeal reflex. However, panoramic radiography can be performed even for lock jaw patients, causes less inconvenience to patients and is much simpler than the standard radiography. The percentage of dental clinics where radiography is performed by dental hygienists was 92.0%, and the percentage of standard film radiography by dental hygienists was 98% whereas the percentage of panoramic radiography by dental hygienists was 92%. For the absorbed dose which is an indicator of radiation exposure, the When the effective dose which is an indicator of the danger of radiation exposure was converted to the number of days of natural radiation, it was 3.3 days for panoramic radiography, but 13.9 days for the full mouth standard radiography by bisecting angle technique which was 4.2 times longer than the panoramic radiography. There were two colleges that had a dental radiology course with two credits in the departments of radiological science. The credits for dental radiology courses in the department of dental hygiene ranged varied by college, ranging from 3 to 8; on average, the theory course was 2.2 credits and the practice course was 2.02 credits. To summarize the above results, the percentage of dental clinics where panoramic radiography is performed by dental hygienists under the guidance of dentists is high. Panoramic radiography has become an essential facility for dental clinics. It is faster than standard film radiography and less dangerous due to low radiation exposure. Panoramic radiography is a simple mechanical job that does not require training of oral radiography by radiotechnologist. Because panoramic radiography is one of major operations which must be performed at all times in dental clinics, it must be designated as intraoral technique rather than extraoral technique, or legalized for inclusion in the scope of operations of dental hygienists.
#구내방사선촬영 #구외방사선촬영 #치과방사선 #치과위생사업무 #파노라마방사선촬영 #intraoral radiography #extraoral radiography #dental radiology #dental hygienist operations #panoramic radiography

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참고문헌 (33)

참고문헌 신청
Bristow RG / 1989 / Thyroid dose distribution in dental radiography / Oral Surg oral Med Oral Pathol 68 : 487 ~ google schola Kate DA / 1973 / The detection of abnormalities in the jaws, A Survey / Br Dent J 134 (4) : 129 ~ 135 google schola Packota GV / 1991 / Radiographic finding in a group of elderly patients at a canadian dental school / J Can Dent Assoc 57 : 407 ~ 409 google schola Pettit GG / 1971 / Panoramic radiography / Dent Clin North Am 15 : 169 ~ 182 google schola Phillips JE / 1968 / Panoramic radiography / Dent Clin North Am 12 : 561 ~ 570 google schola

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