Fig. 3. Treatability refers to OPG/CBCT and to residents in oral surgery and orthodontics
Fig. 3. Treatability refers to OPG/CBCT and to residents in oral surgery and orthodontics
Fig. 2. Accuracy of diagnostic answers given by residents in orthodontics (R right, F false, NS not sufficient)
Fig. 2. Accuracy of diagnostic answers given by residents in orthodontics (R right, F false, NS not sufficient)
Fig. 1. Accuracy of diagnostic answers from residents in oral surgery (R right, F false, NS not sufficient)
Fig. 1. Accuracy of diagnostic answers from residents in oral surgery (R right, F false, NS not sufficient)
Variable
p value
Odds ratio (95% CI)
Specialisation: oral surgery vs orthodontics
4 year
0.045*
...
Question pertaining to
OPG (%)
CBCT (%)
p value
Odds ratio (95% CI)
Contact to nerve
...
Question pertaining to
OS (%)
ORTH (%)
p value
Odds ratio (95% CI)
Contact to nerve
...
Case
Age (years)
Sex
Pathology
Time between OPG and CBCT
1
...
Resident
Age (years)
Sex
Specialisation
Experience as a dentist (years)
1
...
Radic, J., Patcas, R., Stadlinger, B. et al. Do we need CBCTs for sufficient diagnostics?-dentist-related factors.
Int J Implant Dent 4, 37 (2018). https://doi.org/10.1186/s40729-018-0147-1
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Received: 06 July 2018
Accepted: 08 October 2018
Published: 16 November 2018
DOI: https://doi.org/10.1186/s40729-018-0147-1
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...
The study was approved by the cantonal ethics committee of the canton of Zurich (KEK 2016-00070).
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Josipa Radic, Raphael Patcas, Bernd Stadlinger, Daniel Wiedemeier, Martin Rücker and Barbara Giacomelli-Hiestand declare that they have no competing interests.
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Correspondence to
Barbara Giacomelli-Hiestand.
Clinic of Cranio-Maxillofacial and Oral Surgery, Centre of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland
Josipa Radic, Bernd Stadlinger, Martin Rücker & Barbara Giacomelli-Hiestand
Clinic for Orthodontics and Paediatric Dentistry, Centre of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland
Raphael Patcas
Statistical S...
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Three-dimensional
Cone beam computed tomography
Digital Imaging and Communications in Medicine
Orthopantomography
Odds ratio
Resident in orthodontics
Resident in oral surgery
This study analysed (i) whether pathologies are accurately diagnosed in three different imaging modalities (OPG, CBCT, 3D model). Diagnostic accuracy was decent with OPG and was improved with CBCT. Next, the study assessed (ii) whether each case was classified as treatable on the basis of the present imaging modality. This result was influenced by the professional background, which influenced whet...
Certain limitations affect the generalizability of this study’s results. First, only nine cases were assessed with a limited range of pathologies (five retained teeth (canines and molars), two tooth resorptions, one odontoma and one supernumerary tooth). Moreover, the assessment was performed by a small amount of residents of the local university. The fact that all residents shared a similar aca...
In 81.6% of the cases, further imaging was requested after the OPG. Caution should be applied in the interpretation of this number, as the residents’ decision was theoretical and did not imply additional costs or radiation exposure. Nevertheless, it is striking that in the majority of the cases, further imaging was requested. One possible explanation might be the diagnostic difficulty of the cho...
Moreover, another valuable and novel observation is the divergence seen in the importance of printed 3D models. For residents in oral surgery, printed 3D models caused more uncertainties and led to a decrease of diagnostic accuracy (if assessed in sequential order after OPG and CBCT). In contrast, residents in orthodontics seemed to benefit of an additional assessment of printed 3D models, which r...
The aim of this study was twofold: (i) to analyse the diagnostic accuracy of pathologies in three different imaging modalities of the same case and (ii) to analyse the need for further imaging in order to enable treatment. Further, aspects like the impact of specialisation, gender and dental experience were analysed. In contrast to the plethora of scientific literature available dealing with CBCT ...
Overall, the majority of the questions were answered correctly, independently to the imaging modality. The percentages of correct answers given by OS were 66.3% for OPG, 83.4% for CBCT and 76.4% for 3D model; and differed slightly to those given by ORTH with 63.7% for OPG, 78.0% for CBCT and 78.7% for 3D model (Figs. 1 and 2). Both OS and ORTH alike answered to around 20% of the questions that th...
Statistical analysis and plots were performed using the statistical software R [12]. To evaluate the differences in the proportions of correct diagnostic answers between OS and ORTH and between different imaging modalities, Fisher’s exact tests were used and odds ratios (OR) including confidence intervals (CI) were computed for every question separately. Likewise, Fisher’s exact tests were app...
Each resident was shown the region of interest to which the questions related to
Allowed setup change of OPG: zoom
Allowed setup change of CBCT: brightness, contrast, zoom, scroll in all three levels (coronal, axial and sagittal
3D model: no restrictions
The OPGs of this study were taken either in-house (CRANEX D, Kw73, 10 mA) or extramural. All CBCTs were taken at the Centre of Dental Medici...
Fourteen residents were recruited for this survey [7 residents in oral surgery (OS) and 7 residents in orthodontics (ORTH), respectively; m = 6, f = 8]. Their characteristics are listed in Table 1. Every resident assessed individually nine separate patient cases, each containing a distinct dentoalveolar pathology, as defined in the study planning process (Table 2).
For each patient case...
Finally, the request for a CBCT should always be guided by the pursuit of improved diagnostic accuracy and the prospect of an enhanced treatment plan. Preferably, the indications for a CBCT should be based entirely on case-related factors. Yet, dentist-related factors might influence the request for a CBCT as well.
The aim of this study was therefore (i) to assess whether pathologies are accurate...
Along with the clinical examination, radiological imaging is essential for a complete diagnosis in dental medicine [1, 2]. Orthopantomography (OPG), a two-dimensional panoramic radiograph, is widely used across all dental disciplines including oral surgery and orthodontics [3,4,5] to address basic diagnostic queries. An OPG contains an abundance of information on the teeth, mandible, maxilla, incl...
The aim of this study was to assess the diagnostic accuracy of various dentoalveolar pathologies based on panoramic radiography (OPG), cone beam computed tomography (CBCT) and printed 3D models in consecutive order; and to evaluate the impact of specialisation of residents in oral surgery (OS) versus residents in orthodontics (ORTH).
Fourteen residents were recruited to evaluate nine selected cas...
Figure 16. Macroanatomy of alveolar process
This image shows a cross section of the maxillary alveolar process at the mid-root level of the teeth. The bone between the roots of a tooth is called interradicular bone or interradicular septum. The bone between the roots of adjacent teeth is called interdental bone or interdental septum. Trabecular bone occupies most of the interdental bone. The ...