Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Higher Voltage Influence on Optimal Caries Diagnosis in Digital Radiography
Umeå University, Faculty of Medicine, Department of Odontology, School of Dentistry.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

It has previously been shown that caries diagnostics is improved when performed on radiographs exposed with a voltage of 60 kV compared to 70 kV. This is because low voltage provides higher subject contrast.

The aim of the present study was to investigate whether the tube voltage used when exposing bitewings, influence the possibility to diagnose caries when using a new digital system with CMOS-sensors.

Extracted teeth were mounted and bitewings exposed with both 60 and 70 kV and varying exposure times, using a digital system with CMOS-sensors. Observers with different experience in dentistry evaluated the radiographs for caries. CBCT of each single tooth was used as golden standard.

There was no significant difference between the results of diagnosing caries between radiographs exposed with 60 kV compared to 70 kV. All radiographs that were exposed to an acceptable level of brightness gave similar result, independent on voltage.

In conclusion; there was no significant difference between radiographic caries diagnosis performed with radiographs exposed with 60 compared to 70 kV, given that the exposure time was optimized. This indicates that 70 kV can be used for all intraoral examination if a correct decreased exposure time is used and that lowering to 60 kV is not necessary when intraoral examinations for caries evaluation are performed.

Place, publisher, year, edition, pages
2014.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:umu:diva-98886OAI: oai:DiVA.org:umu-98886DiVA: diva2:783853
Educational program
Dentistry Programme
Supervisors
Examiners
Available from: 2015-03-11 Created: 2015-01-27 Last updated: 2015-03-11Bibliographically approved

Open Access in DiVA

fulltext(732 kB)217 downloads
File information
File name FULLTEXT01.pdfFile size 732 kBChecksum SHA-512
5761820ea95daf3bd3c6f631ef90876fb43dcbd6cf7423637bc5ef14e57bbd5f546d563802847a51da37b12d2b3cb394daffe25b79517fe02e800e9f9c75c1e6
Type fulltextMimetype application/pdf

By organisation
School of Dentistry
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 217 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 120 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf