Evidence map›Paper›PMID 40676442›Full record

ArticleOral radiology2026

Is it possible to apply a paralleling technique to different ethnicities in Hong Kong?

Miharu Taguchi, Hiroshi Watanabe, Ami Kuribayashi, Andy Wai Kan Yeung, Ray Tanaka

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Article in Oral radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Miharu TaguchiDepartment of Dental Radiology and Radiation Oncology, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
Hiroshi WatanabeDepartment of Dental Radiology and Radiation Oncology, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan. hiro.orad@tmd.ac.jp.ORCID 0000-0001-5768-4069
Ami KuribayashiDepartment of Dental Radiology and Radiation Oncology, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
Andy Wai Kan YeungOral and Maxillofacial Radiology, Faculty of Dentistry, Applied Oral Sciences and Community Dental Care, The University of Hong Kong, Hong Kong SAR, China.
Ray TanakaOral and Maxillofacial Radiology, Faculty of Dentistry, Applied Oral Sciences and Community Dental Care, The University of Hong Kong, Hong Kong SAR, China.

Funding

Japan Society for the Promotion of Science London JP23K09307Japan Society for the Promotion of Science London JP23k0934
6 · The paper itself

Abstract

objectivesThis study aimed to evaluate the applicability of a paralleling technique in dental patients in Hong Kong via cone-beam computed tomography (CBCT) images.

methodsWe analyzed CBCT images of 28 patients who underwent CBCT examination at Prince Philip Dental Hospital between March 2016 and July 2021. Overall, 136 teeth were studied. We created an 8 mm-thick reconstructed maximum intensity projection image to show each subject tooth, traced them with the surrounding structures, such as the hard palate and the buccal skin surface of the maxilla, and measured various parameters for determining the tooth length and palatal height. We also considered the applicability of the parallel technique.

resultsWe successfully measured the parameters with excellent intra- and inter-observer reliability indices. The results revealed that the applicability of this technique was not feasible. These results were similar to those of a previous study. Only two periapical radiographs showed distorted shapes and inconsistent root lengths.

conclusionsUsing CBCT image analysis, this study clarified that the paralleling technique is not applicable even for patients in Hong Kong. Clinicians should note that the paralleling technique is not strictly a paralleling method and may lead to image distortion.

Indexed as

Cone-Beam Computed TomographyToothAdultAgedFemaleHong KongHumansMaleMaxillaMiddle AgedReproducibility of ResultsDental technologyRadiographic magnificationRadiographyRadiologicX-rays

Identifiers

PMID40676442

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.