Utility of lead thyroid collar in cephalometric radiography

Choudhary, Anuraag B; Motwani, Mukta; Banode, Pankaj; Chaudhary, Mayur; Degwekar, Shirish; Bhowate, Rahul; Chaudhary, Shweta

doi:10.4103/0970-9290.107442

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…Raustia et al 6 reported that both the anteroposterior and mediolateral displacement direction of the fractured condyle were better seen on CT than conventional radiographs. Choudhary et al 33 evaluated the diagnostic quality of CBCT images and compared them with conventional images from patients with maxillofacial trauma. They stated that the detection of fracture lines on the midface and mandibular condylar region is signifcantly enhanced using CBCT when compared with conventional radiographs.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Panoramic, Lateral Skull Projection and CBCT Images in Detection of Mandibular Condyle Fractures

Orhan¹,

Özemre

Seçgin

et al. 2021

Cumhuriyet Dental Journal

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Objectives: Condyle fractures constitute 17.5-52% of all mandibular fractures. Our first aim was to investigate whether Panoramic Radiography or Lateral Skull Projection images with lower radiation dose can be used instead of Cone Beam Computed Tomography in the diagnosis of vertical condylar fractures. The second aim of the study was to compare observers' capabilities in diagnosing these fractures. Materials and Methods:A sample consisting of 15 fresh cadaver mandibles with 30 condyles frozen within 24 hours post-mortem was randomly selected. Vertical fractures from the lateral 2/3 of the condyle head with 0.5 (10 condyles) and 1mm (10 condyles) thickness were created using a fret saw. After creating condyle fractures, digital panoramic, LSP, and CBCT images were acquired. Two dentomaxillofacial radiologists with 15 years of experience, two dentomaxillofacial radiologists with five and seven years of experience, and two newly graduated dentists have evaluated the images. The success of the observers in diagnosing the vertical condyle fracture in each imaging method, intra-observer and interobserver agreement was evaluated. Results:The success of all dentists in determining the condyle fractures using LSP images was higher than the success they achieved using panoramic images, but the sensitivity values of LSP and panoramic radiographs for detecting vertical condyle fractures were found to be below 50%. Using different imaging options with CBCT, all diagnoses made by new graduates and dentomaxillofacial radiologists with five and 15 years' experience were 100% compatible with the gold standard (AC1: 1 (1-1)). Conclusions:For the diagnosis of vertical condyle fractures, conventional techniques (panoramic and lateral jaw imaging methods) were found to be insufficient.

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Section: Discussionmentioning

confidence: 99%

Comparison of Panoramic, Lateral Skull Projection and CBCT Images in Detection of Mandibular Condyle Fractures

Orhan¹,

Özemre

Seçgin

et al. 2021

Cumhuriyet Dental Journal

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“…thyroid collar was very helpful in direct digital panoramic system to reduce thyroid gland exposure. Choudhary AB et al (2012) (10) Nagpur, India efficiency of lead thyroid collar in study of cephalometric landmarks. lead shielding dose not effect landmarks measurements and that it must be using on routine bases.…”

Section: Amsterdam Netherlandsmentioning

confidence: 99%

“…They found that lead shielding dose not effect landmarks measurements and that it must be using on routine bases. (10) Sansare KP et al (2011) from India mentioned using of thyroid collars in cephalometric radiology and found that while they mask few landmarks but overall they reduce thyroid dose significantly and hence they recommend routine cephalometric radiography use. 15Zenóbio EG et al (2012) from Brazil used TLD-100 in human patients 19 in number in parotid gland, submandibular gland and thyroid gland in patient selected for dental implant surgery.…”

Section: Phantom Based Studiesmentioning

confidence: 99%

Impact of Diagnostic Radiation on Thyroid and Gonads - A Structured Review.

AlsuwatMohammed¹

2019

IJAR

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Objective: To know about the current state of knowledge in diagnostic radiation safety which is uppermost in mind of all the dental clinicians. Methods: A total of 301 references were reviewed using standard search engines Pubmed and Google. Twenty-two, were selected as relevant by all the authors, for our area of inquiry. The temporal status of these studies were from 2008 to 2017. Two categories of research was identified, those with anthropometric phantoms and those with real patients. Results: Initially we divided them into Phantom based studies (17) 77.27% and the patient-based studies were (5) 22.73%. There is paucity of actual patient studies due to noncooperation by patients for radiation-based study and also because of severe restriction by ethical committee to give permission for such study. Conclusion: The extensive Phantom based studies and specific patient studies of radiation measurement in diagnostic dental domain has suggested to a large extent that this is a safe mode of tool of treatment selection. The risks are very minimal and unnecessary radiography must be avoided and each radiographic session must be customized.

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“…Importantly, it must be added that all published orthodontic case reports and research that include LCR images show no sign, and rarely state the use, of a TPC, or the images are cropped, which removes evidence of whether a TPC had been used. One published exception was the report of Choudhary et al, 44 which specifically illustrated the correct use of a TPC.…”

Section: Thyroid Protective Collar (Tpc)mentioning

confidence: 99%

Orthodontists and the thyroid gland

Godfrey

2016

Australasian Orthodontic Journal

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This paper questions the adequacy of orthodontists’ full appreciation of the issues associated with the routine prescription of extraoral radiography, particularly that related to a high risk of thyroid gland exposure to ionising radiation. There does not appear to be adequate application of the ALARA principle in the consideration of justifiable options to minimise the cumulative effects of radiation exposure in young patients.

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Utility of lead thyroid collar in cephalometric radiography

Cited by 4 publications

References 1 publication

Comparison of Panoramic, Lateral Skull Projection and CBCT Images in Detection of Mandibular Condyle Fractures

Comparison of Panoramic, Lateral Skull Projection and CBCT Images in Detection of Mandibular Condyle Fractures

Impact of Diagnostic Radiation on Thyroid and Gonads - A Structured Review.

Orthodontists and the thyroid gland

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