[Oradlist] D-speed film

Thu Feb 5 13:48:15 PST 2009

This recent article can help you.
Regards.

Allan Abuabara.
Joinville - SC, Brazil

*Dentomaxillofacial Radiology (2009) 38,* 92-97
http://dmfr.birjournals.org/cgi/content/abstract/38/2/92
SHORT COMMUNICATION Is it true that the radiation dose to which patients are
exposed has decreased with modern radiographic films? * M Alcaraz*,1, C
Parra2, Y Martínez Beneyto2, E Velasco1 and M Canteras3 *

* 1Department of Radiology and Physical Medicine, Faculty of
Medicine/Dentistry, University of Murcia, Campus Espinardo, Spain; 2Department
of Stomatology, Faculty of Medicine/Dentistry, University of Murcia, Campus
Espinardo, Spain; 3Department of Biostatistics, Faculty of
Medicine/Dentistry, University of Murcia, Campus Espinardo, Spain *

*Correspondence to: Department of Radiology and Physical Medicine, Faculty
of Medicine/Dentistry, University of Murcia, 30100 – Campus de Espinardo
(Murcia), Spain. E-mail: mab{at}um.es

Received 12 October 2007; revised 24 February 2008; accepted 6 March 2008

*Abstract*

*Objectives:* To determine whether the radiation dose administered to
patients has decreased with new radiographic films and digital imaging
systems.

*Methods:* A total of 10 171 official reports on radiological practice in
dental surgeries (covering the years 1996–2003) from 16 Spanish autonomous
regions were studied, analysing the type of film used, the exposure times
and the radiation doses administered in each dental clinic for four
different teeth: upper molar, lower molar, upper incisor and lower incisor.

*Results:* The Agfa Dentus M2 radiographic film needed the longest exposure
times for all of the teeth (0.6 s, 0.5 s, 0.4 s and 0.4 s, respectively)
followed in decreasing order by Ultraspeed, Insight, Ektaspeed and the
digital systems, the decrease with respect to the first reaching as much as
60%. Regarding the dose administered, Agfa Dentus M2 used the highest dose
(3.1 mGy) followed by Ultraspeed (2.7 mGy), Insight (2.2 mGy), Ektaspeed
(2.2 mGy) and, finally, the digital systems (1.1 mGy). Statistical analysis
showed significant differences between the doses administered for the
digital systems with respect to the radiographic films (*P *< 0.001) and
with respect to manual or automatic processing (*P *< 0.001). However, there
were no significant differences in dose between the different types of films
themselves, or between the radiographic developing processes themselves
(manual and automatic).

*Conclusion:* Not even the use of the most sensitive of modern films has
brought about a reduction of the dose administered to patients in Spain.
Only digital systems, it seems, will bring about reduction in this dose.

*Keywords:* radiography; intraoral; doses; radiation; film

On Thu, Feb 5, 2009 at 2:15 PM, Stelt, PF. van der <P.vd.Stelt at acta.nl>wrote:

> Enough scientific publications exist to show that the diagnostic
> performance of F-speed is similar to that of D-speed. In my opinion, the
> ALARA discussion can be rather short when you can use 25% of the
> radiation dose at the same cost.
>
> Best regards,
> Paul
>
> _________________________________________________
> Paul F. van der Stelt, DDS, PhD
> Professor of Oral and Maxillofacial Radiology
> Chairman Dept. of General and Specialised Dentistry
> Head Dept. of Oral and Maxillofacial Radiology
> Academic Center for Dentistry Amsterdam (ACTA)
> Louwesweg 1
> 1066 EA Amsterdam, the Netherlands
> tel.      : +31-20-5188 262        e-mail  : p.vdstelt at acta.nl
> fax      : +31-20-5188 480       web    : www.radiology.acta.nl
> _________________________________________________
>
>
> > -----Original Message-----
> > From: oradlist-bounces at lists.ucla.edu
> [mailto:oradlist-bounces at lists.ucla.edu] On
> > Behalf Of Garnet Packota
> > Sent: Thursday, February 05, 2009 4:12 PM
> > To: Oradlist at lists.ucla.edu
> > Subject: [Oradlist] D-speed film
> >
> > I have a meeting tomorrow with our provincial dental licencing
> authority
> > and staff from our provincial radiation safety unit.  The topics we
> are
> > discussing include use of CBCT imaging and D-speed film.
> >
> > I am not totally clear what our radiation safety unit is thinking in
> > regards to D-speed; at the very least, I am sure they are seeking a
> > policy statement to discourage use of D-speed in favour of F-speed and
> > digital imaging.  I wonder if they might be seeking a recommendation
> to
> > ban its use.  In preparation for the meeting, one of their staff sent
> me
> > a pdf file of an article on dental radiography from an online
> > publication called "DrBicuspid.com".  In the article, Drs. John
> Ludlow,
> > Allan Farman and Ted Parks are quoted.  Of course, I plan to go to the
> > meeting with a summary of pertinent literature.
> >
> > Notwithstanding the fact that we all promote the ALARA principle, I
> > would like to ask if anyone is aware of any policy statements,
> > recommendations, or guidelines from provincial, state or other
> licencing
> > authorities that specifically make reference to use of D-speed film.
> >
> > Thanks in advance for any information you can provide.
> >
> > --
> > Dr. Garnet V. Packota
> > Oral and Maxillofacial Radiologist
> > Faculty of Dental Medicine
> > University of Saskatchewan
> >
> > Mailing address:      Dental Teaching Hospital
> >                       University of Saskatchewan
> >                       105 Wiggins Road
> >                       Saskatoon SK
> >                       S7N 5E4  CANADA
> > Telephone:            (306)-966-5068 or 5073
> > Fax:                  (306)-966-1795
> > e-mail:                       garnet.packota at usask.ca
> > ********************************************************************
> >
> >
> > _______________________________________________
> > Oradlist mailing list
> > Oradlist at lists.ucla.edu
> > http://lists.ucla.edu/cgi-bin/mailman/listinfo/oradlist
> _______________________________________________
> Oradlist mailing list
> Oradlist at lists.ucla.edu
> http://lists.ucla.edu/cgi-bin/mailman/listinfo/oradlist
>

-- 
Allan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.ucla.edu/cgi-bin/mailman/private/oradlist/attachments/20090205/9cd341c0/attachment.htm 