Radiation dose of cone-beam computed tomography compared to conventional radiographs in orthodontics

Signorelli, Luca; Patcas, Raphael; Peltomäki, Timo; Schätzle, Marc

doi:10.1007/s00056-015-0002-4

Cited by 87 publications

(70 citation statements)

References 31 publications

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“…From the perspective of measurement accuracy and better comparability, future studies should use CBCT to assess the occurrence of EARR in orthodontic treatment. However, the higher radiation exposure and more expenses of CBCT should also be considered [29]. …”

Section: Discussionmentioning

confidence: 99%

Root resorption during orthodontic treatment with self-ligating or conventional brackets: a systematic review and meta-analysis

Liu

et al. 2016

BMC Oral Health

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BackgroundThe aim of this study was to compare the external apical root resorption (EARR) in patients receiving fixed orthodontic treatment with self-ligating or conventional brackets.MethodsStudies comparing the EARR between orthodontic patients using self-ligating or conventional brackets were identified through electronic search in databases including CENTRAL, PubMed, EMBASE, China National Knowledge Infrastructure (CNKI) and SIGLE, and manual search in relevant journals and reference lists of the included studies until Apr 2016. The extraction of data and risk of bias evaluation were conducted by two investigators independently. The original outcome underwent statistical pooling by using Review Manager 5.ResultsSeven studies were included in the systematic review, out of which, five studies were statistically pooled in meta-analysis. The value of EARR of maxillary central incisors in the self-ligating bracket group was significantly lower than that in the conventional bracket group (SMD −0.31; 95% CI: −0.60–−0.01). No significant differences in other incisors were observed between self−ligating and conventional brackets.ConclusionsCurrent evidences suggest self-ligating brackets do not outperform conventional brackets in reducing the EARR in maxillary lateral incisors, mandible central incisors and mandible lateral incisors. However, self-ligating brackets appear to have an advantage in protecting maxillary central incisor from EARR, which still needs to be confirmed by more high-quality studies.

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Section: Discussionmentioning

confidence: 99%

Root resorption during orthodontic treatment with self-ligating or conventional brackets: a systematic review and meta-analysis

Liu

et al. 2016

BMC Oral Health

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“…10 However, the expenses and radiation of CBCT are significantly higher than that of PR. 11 Thus investigations of the actual diagnostic efficacy of CBCT and PR for ERR could help dental clinicians make more appropriate diagnostic decisions and treatment plans. At present, several studies have compared the diagnostic efficacy of CBCT for ERR in vivo.…”

Section: Introductionmentioning

confidence: 99%

Cone-beam computed tomography versus periapical radiograph for diagnosing external root resorption: A systematic review and meta-analysis

Sun

et al. 2016

The Angle Orthodontist

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Objective: To compare the diagnostic accuracy of cone-beam computed tomography (CBCT) and periapical radiographs (PR) for the detection of external root resorption (ERR). Material and Methods: An electronic search in databases, including the Cochrane Central Register of Controlled Trials, PubMed, Embase, the China National Knowledge Infrastructure, and System for Information on Grey Literature in Europe (SIGLE), was performed until August 2016. A manual search of relevant journals and reference lists of enrolled studies was conducted. The studies investigating the diagnostic accuracy of CBCT or PR for ERR, with simulated ERR as the reference test, were considered eligible. The diagnostic accuracy of CBCT and PR was statistically pooled using a bivariate model. Meta-regression and subgroup analysis were performed to explore the sources of heterogeneity. Sensitivity analysis was used to test the stability of the overall results in the meta-analysis. Results: A total of 15 studies were included in this systematic review. The pooled results showed that CBCT had significantly higher sensitivity (0.89; 95% confidence interval [CI]: 0.77-0.96) and area under curve (0.96; 95% CI: 0.77-0.96) than PR (sensitivity: 0.68; 95% CI: 0.56-0.78; area under curve: 0.88; 95% CI: 0.85-0.90). No difference in sensitivity, specificity, and area under the curve between conventional and digital PR was observed. Conclusions: Currently available evidence suggests that CBCT could be reliable to detect the presence of ERR in clinical practice and has a higher diagnostic efficacy than PR. (Angle Orthod. 2017;87:328-337)

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“…21 Compared to about 22 µSv effective dose of an OPT, CBCTs still cause much higher radiation exposure than two dimensional radiographs, which is why CBCT should not be considered for standard diagnostics, but only if the OPT shows risk factors for IAN damage. 21,28,29 The complete removal of a lower third molar by buccal approach is probably the most common, but not the only therapy option, when indication for surgery is con rmed. Several authors proclaim coronectomy as the approach of choice, when the lower third molar is in proximity of the inferior alveolar nerve.…”

Section: Discussionmentioning

confidence: 99%

Does a Preoperative Cone Beam Ct Reduce Complication Rates in the Surgical Removal of Complex Lower Third Molars? A Retrospective Study Including 486 Cases

Klatt

Sorowka

Smeets

et al. 2020

Preprint

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BackroundThis study was designed to analyse the value of preoperative Cone Beam CTs prior to the surgical removal of complex lower third molars. Furthermore, the aim was to assess injuries to the inferior alveolar nerve bundle and postoperative neurological disorders depending on the position of the lower third molar and theinferior alveolar nerve bundle.MethodsPreoperative Cone Beam CTs and Orthopantomographs of 324 patients were analysed concerning the location of the lower third molars in relation to the mandible and the inferior alveolar nerve bundle. Surgery protocols of all patients who underwent the surgical removal of at least one complex lower third molar were analysed concerning patient data, length of surgery, intraoperative haemorrhage, intraoperative exposure of the inferior alveolar nerve bundle, postoperative swelling and postoperative neurological disorders. The data was then compared to data from international studies.ResultsIn all 324 patients a permanent neurological damage was not found. Temporary neurological damage was recorded in 13 cases (2.6%). A caudal nerve position with no measurable distance to the root of the lower third molar was associated with the highest risk of a temporal neurological damage. A vestibular touching nerve route also correlated with postoperative sensitivity impairment.ConclusionsThree-dimensional radiographic imaging,in our patient group, does not significantly affect the risk for complications during the surgical removal of complex lower third molars,but allows the surgeon to choose the best surgical approch for a fast and most atraumatic operation. Therefore, it should only be utilized for risk assessment, especially in cases of symptom-free lower third molars. A preoperative orthopantomogram still can be accepted as standard for radiographic imaging. The interpretation of the orthopantomogram may lead to the indication for three-dimensional imaging, if signs of increased surgery risk are present.

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Radiation dose of cone-beam computed tomography compared to conventional radiographs in orthodontics

Abstract: CBCT should not be recommended for use in all orthodontic patients as a substitute for a conventional set of radiographs. In CBCT, reducing the height of the field of view and shielding the thyroid are advisable methods and must be implemented to lower the exposure dose.

Cited by 87 publications

References 31 publications

Root resorption during orthodontic treatment with self-ligating or conventional brackets: a systematic review and meta-analysis

Root resorption during orthodontic treatment with self-ligating or conventional brackets: a systematic review and meta-analysis

Cone-beam computed tomography versus periapical radiograph for diagnosing external root resorption: A systematic review and meta-analysis

Does a Preoperative Cone Beam Ct Reduce Complication Rates in the Surgical Removal of Complex Lower Third Molars? A Retrospective Study Including 486 Cases

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