Pregled bibliografske jedinice broj: 68849
Assesment of the Precision of Vertical Measurments on Orthopantomographic Radiographs
Assesment of the Precision of Vertical Measurments on Orthopantomographic Radiographs // Acta Stomatologica Croatica, 32 (1998), 1; 43-47 (podatak o recenziji nije dostupan, članak, znanstveni)
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Naslov
Assesment of the Precision of Vertical Measurments on Orthopantomographic Radiographs
Autori
Ćatić, Amir ; Čelebić, Asja ; Valentić-Peruzović, Melita ; Ćatović, Adnan ; Vinter, Ivan ; Muretić, Ivana
Izvornik
Acta Stomatologica Croatica (0001-7019) 32
(1998), 1;
43-47
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
orthopantomography; magnification index
Sažetak
Objectives: The aim of this study was to
evaluate the precision of
the horizontal dimensional measurements on
orthopantomographic ima-
ges by the Orthophos D3200° (Siemens, Germany),
and therefore to
evaluate their dimensional reliability.
Material and Methods: Different distances
denoted by metal mar-
kers were measured on 25 dry mandibles. The
same mandibles were
then positioned in an orthopantomographic
machine Orthophos D3200Ž
(Siemens, Germany) and their radiographic
images were made. Mea-
surements of the same distances were repeated
on the panoramic ima-
ges and compared to the results of the
measurements on the dry man-
dibles. All results were statistically analyzed.
Results: The calculated magnification factors
for the horizontal me-
asurements, not traversing the midline of the
mandible, ranged betwe-
en 0.97 and 1.065. These values were smaller
than those declared by
the manufacturer of the X-ray device (1.22x),
with a statistically signi-
ficant difference between the indices. The
calculated magnification fac-
tors for the horizontal measurements traversing
the midline of the man-
dible ranged from 1.45 to 1.85, which was
significantly larger than the
declared values by the manufacturer of the
orthopantomographic mac-
hine.
Conclusion: Measurements made only on one side
of the mandible
were very close to actual dimensions of dry
mandibles, and therefore
representative for those distances. The
measurements which extended
across the midline of the mandible were greatly
enlarged, due to a large
magnification factor. Thus, the distances which
traverse the midline of
mandible should not be measured.
Izvorni jezik
Engleski
Znanstvena područja
Dentalna medicina
POVEZANOST RADA
Projekti:
065911
Ustanove:
Stomatološki fakultet, Zagreb
Profili:
Melita Valentić-Peruzović
(autor)
Ivan Vinter
(autor)
Amir Ćatić
(autor)
Adnan Ćatović
(autor)
Asja Čelebić
(autor)
Citiraj ovu publikaciju:
Uključenost u ostale bibliografske baze podataka::
- Index to Dental Literature/MEDLINE-MEDLARS
- Biological Abstracts/ BIOSIS