PMID- 24648236
OWN - NLM
STAT- MEDLINE
DCOM- 20140905
LR  - 20151119
IS  - 1438-9010 (Electronic)
IS  - 1438-9010 (Linking)
VI  - 186
IP  - 8
DP  - 2014 Aug
TI  - Intraoral radiology in general dental practices - a comparison of digital and 
      film-based X-ray systems with regard to radiation protection and dose reduction.
PG  - 762-7
LID - 10.1055/s-0034-1366256 [doi]
AB  - PURPOSE: The purpose of this study was to gain insight into the distribution and 
      application of digital intraoral radiographic techniques within general dental 
      practices and to compare these with film-based systems in terms of patient dose 
      reduction. MATERIALS AND METHODS: 1100 questionnaires were handed out to general 
      dental practitioners. Data was analyzed with respect to the type of system by 
      using descriptive statistics and nonparametric tests, i.e. Kruskal-Wallis, 
      Mann-Whitney and chi-square test (SPSS 20). RESULTS: 64% of the questioned 
      dentists still use film-based radiology, 23% utilize storage phosphor plate (SPP) 
      systems and 13% use a charge-coupled device (CCD). A strong correlation between 
      the number of dentists working in a practice and the use of digital dental 
      imaging was observed. Almost 3/4 of the film users work with E- or F-speed film. 
      45% of them refuse to change to a digital system. The use of lead aprons was 
      popular, while only a minority preferred thyroid shields and rectangular 
      collimators. A fourfold reduction of exposure time from D-speed film to CCD 
      systems was observed. Due to detector size and positioning errors, users of CCD 
      systems take significantly more single-tooth radiographs in total. Considering 
      the number of radiographs per patient, there is only a slight tendency towards 
      more X-rays with CCD systems. Up to image generation, digital systems seem to be 
      as or even more difficult to handle than film-based systems, while their handling 
      was favored after radiographic exposure. CONCLUSION: Despite a slight increase of 
      radiographs taken with CCD systems, there is a significant dosage reduction. 
      Corresponding to the decrease in exposure time, the patient dose for SPP systems 
      is reduced to one half compared to film. The main issues in CCD technology are 
      positioning errors and the size of the X-ray detectors which are difficult to 
      eliminate. The usage of radiation protection measures still needs to be improved. 
      KEY POINTS: ► Responsible use of digital intraoral radiology results in a 
      significant dose reduction in everyday practice. ► The ALARA principle is only 
      achieved by strict implementation of dose-reducing methods. ► The efforts to use 
      dose-reducing devices must be increased.
CI  - (c) Georg Thieme Verlag KG Stuttgart . New York.
FAU - Anissi, H D
AU  - Anissi HD
AD  - Dentistry, University of Ulm.
FAU - Geibel, M A
AU  - Geibel MA
AD  - Department of Dentomaxillofacial Surgery, University of Ulm.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
DEP - 20140319
PL  - Germany
TA  - Rofo
JT  - RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin
JID - 7507497
SB  - IM
MH  - Attitude of Health Personnel
MH  - Germany
MH  - Humans
MH  - *Radiation Dosage
MH  - Radiation Protection/instrumentation/*methods
MH  - Radiography, Dental/*methods
MH  - Radiography, Dental, Digital/instrumentation/*methods
MH  - Surveys and Questionnaires
MH  - Technology, Radiologic/instrumentation/methods
MH  - X-Ray Intensifying Screens
EDAT- 2014/03/22 06:00
MHDA- 2014/09/06 06:00
CRDT- 2014/03/21 06:00
PHST- 2014/03/21 06:00 [entrez]
PHST- 2014/03/22 06:00 [pubmed]
PHST- 2014/09/06 06:00 [medline]
AID - 10.1055/s-0034-1366256 [doi]
PST - ppublish
SO  - Rofo. 2014 Aug;186(8):762-7. doi: 10.1055/s-0034-1366256. Epub 2014 Mar 19.