Indikationen für die 3-dimensionale Bildgebung in der Zahnheilkunde

Scherer, P.; Neugebauer, J.; Ritter, L.; Mischkowski, R.; Scheer, M.; Zöller, J. E.

doi:10.1055/s-2007-983917

Cited by 2 publications

(6 citation statements)

References 7 publications

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“…Im Bereich der Kieferorthopädie kann die 3-D-Rekonstruktion und Visualisierung von CT-Aufnahmen detaillierte Informationen über Minischrauben und Zahnbewegungen liefern [8]. Die Aufnahmetechnik der DVT, die im Vergleich zum CT weniger aufwendig ist und eine geringere Strahlenbelastung von etwa 75-80% bedeutet, verspricht ebenfalls eine hohe Präzision und Verlässlichkeit von Simulationsverfahren [16]. Mit Hilfe der DVTAufnahme können außerdem, im Gegensatz zum OPT, Parameter beurteilt werden, welche für den Erfolg einer Schraubenimplantation Bedeutung haben.…”

Section: Resultsunclassified

“…Da aber die DVT-Aufnahme eine große Hilfe darstellt, ist früh-zeitig darauf zu achten, ob im Rahmen von weiteren Behandlungsmaßnahmen die Anfertigung anderer Röntgenaufnah-men indiziert ist. Ist dies der Fall, ist es möglich, durch einen einmaligen DVT-Scan mit der Option der verschiedenen Rekonstruktionen von OPT, FRS und Schädel-PA eine wiederholte Strahlenexposition zu vermeiden [16]. Zudem sollte in Ausnahmefällen abgewogen werden, ob die Anfertigung einer DVTAufnahme bei beispielsweise geringem Knochenangebot indiziert ist.…”

Section: Resultsunclassified

“…The 3D reconstruction and visualization of CT images supply orthodontists with detailed information about miniscrews and tooth movements [8]. The imaging technique of cone-beam computed tomographyless complicated than CT and entailing radiation exposure 75-80% lower-also promises to be a highly precise and reliable simulation procedure [16]. Moreover, with the help of the CBCT image (unlike the OPT), parameters can be evaluated that are important for successful screw implantation.…”

Section: Probandsmentioning

confidence: 99%

“…If that is the case, repeated radiation exposure can be avoided by taking a single CBCT scan with the option of various reconstructions to generate a OPT, a lateral cephalogram and posteroanterior cephalogram [16]. In addition, in exceptional cases, consideration should be given to whether taking a CBCT image is indicated in response to insufficient bone thickness, for example.…”

Section: Probandsmentioning

confidence: 99%

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Evaluating miniscrew position using orthopantomograms compared to cone-beam computed tomography

Bennemann

Baxmann²,

Keilig

et al. 2012

J Orofac Orthop

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Overall our study demonstrates that the OPTs enabled a rough evaluation of the miniscrew position in relation to the surrounding structures. However, the probands' assessments were imprecise. Major deviations appeared in the determination of the proximity of the screw to the dental root. For this reason, if there is any doubt, patients should take advantage of three-dimensional (3D) diagnostics, preferably before any surgical intervention. This is true, for example, if it is unclear whether a root will be or has been perforated, or indeed whether there is sufficient transverse bone tissue.

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Section: Resultsunclassified

Section: Probandsmentioning

confidence: 99%

Section: Probandsmentioning

confidence: 99%

See 2 more Smart Citations

Evaluating miniscrew position using orthopantomograms compared to cone-beam computed tomography

Bennemann

Baxmann²,

Keilig

et al. 2012

J Orofac Orthop

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show abstract

“…12.4 % of 65 -74-year-olds have no teeth [1]. Due to the importance of implants for oral rehabilitation after the loss of natural teeth [2], preoperative imaging is required for optimal treatment planning with maximum risk reduction and predictability of longterm success [3,4]. MRI could play an important role here due to the visualization of soft-tissue structures [5].…”

Section: Introductionmentioning

confidence: 99%

Artifact Properties of Dental Ceramic and Titanium Implants in MRI

Geibel

Gelißen²,

Bracher

et al. 2018

Fortschr Röntgenstr

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Aim Assessment of the visualization of titanium and ceramic dental implants using various isotropic three-dimensional magnetic resonance imaging (MRI) methods. Materials and Methods 21 dental implants (7 ceramic, 14 titanium) were scanned in vitro with a spatially isotropically resolved three-dimensional gradient echo (FFE), a turbo spin echo (SE) and an ultra-short-echo time (UTE) imaging technique. The resulting absolute volumes of the implants were quantified and the relative error to the theoretical volume was calculated. Results Ceramic implants and their periphery could be displayed well in all cases. The observed mean relative error results were 5.4 ± 2.3 % (UTE) to 6.5 ± 4.3 % (FFE). No significant difference was observed between the investigated MRI methods. The transition between implant and surrounding agarose could be shown in all cases without artifacts. Titanium implants resulted in mean relative errors between 1314 ± 350 % (FFE) and 2157 ± 810 % (SE). Here, significant differences were observed between the FFE and the SE and between the UTE and the SE sequence. The periphery of the implants could not be displayed in any case. Conclusion Use of the MRI technique for the diagnosis of peri-implantitis, the assessment of anatomical structures and planning of dental implantation is currently very limited but could be used more frequently, provided there are no disturbing or imaging-disturbing materials in the region of interest. MRI technology is not suitable in case of titanium implants. When using ceramic implants, MRI technology is an option. Key points Citation Format

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Indikationen für die 3-dimensionale Bildgebung in der Zahnheilkunde

Cited by 2 publications

References 7 publications

Evaluating miniscrew position using orthopantomograms compared to cone-beam computed tomography

Evaluating miniscrew position using orthopantomograms compared to cone-beam computed tomography

Artifact Properties of Dental Ceramic and Titanium Implants in MRI

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