Evidence map›Paper›PMID 41585131›Full record

ArticleJournal of dental sciences2026

Analysis of multimodal large language models on visually-based questions in the Japanese National Examination for Dental Hygienists: A preliminary comparative study.

Yoshino Kaneyasu, Yuichi Mine, Yoshie Niitani, Tsuyoshi Taji, Saori Takeda, Ryohei Tokinaga, Hideo Shigeishi, Toshinobu Takemoto, Naoya Kakimoto, Takeshi Murayama and 1 more

Abstract read
In one paragraph

Article in Journal of dental sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Yoshino KaneyasuDepartment of Public Oral Health, Graduate School of Biomedical and Health Sciences, Hiroshima, Japan.
Yuichi MineProject Research Center for Integrating Digital Dentistry, Hiroshima University, Hiroshima, Japan.
Yoshie NiitaniDepartment of Oral Health Management, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Tsuyoshi TajiDepartment of Oral Biology & Engineering, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Saori TakedaProject Research Center for Integrating Digital Dentistry, Hiroshima University, Hiroshima, Japan.
Ryohei TokinagaDepartment of Medical Systems Engineering, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Hideo ShigeishiDepartment of Public Oral Health, Graduate School of Biomedical and Health Sciences, Hiroshima, Japan.
Toshinobu TakemotoDepartment of Oral Health Management, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Naoya KakimotoDepartment of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Takeshi MurayamaProject Research Center for Integrating Digital Dentistry, Hiroshima University, Hiroshima, Japan.
Kouji OhtaDepartment of Public Oral Health, Graduate School of Biomedical and Health Sciences, Hiroshima, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/purpose: The importance of oral health is globally recognized, which has increased the demand for qualified dental hygienists. This study assessed the performance of multimodal large language models (LLMs), on the Japanese National Examination for Dental Hygienists, focusing on their ability to answer visually-based questions and evaluating image-recognition capabilities. Materials and methods: The 34th Japanese National Examination for Dental Hygienists (March 2025) supplied 213 multiple-choice questions (74 text-only, 139 visually-based). Five multimodal LLMs were tested: OpenAI o3-mini-high (o3-mh), ChatGPT-4.5 Preview (GPT-4.5), Gemini 2.0 Flash Thinking Experimental (Gemini 2.0), Gemini 2.5 Pro Experimental (Gemini 2.5), and Claude 3.7 Sonnet (Claude 3.7). Performance was evaluated by comparing LLM answers to official correct answers. Cochran's Q test and McNemar's tests with Bonferroni correction were used for statistical analysis. Results: Gemini 2.5 achieved the highest overall correct response rate (85.0 %), followed by Claude 3.7 (77.5 %), o3-mh (77.0 %), GPT-4.5 (76.1 %), and Gemini 2.0 (75.1 %). For text-only questions, Claude 3.7 (91.9 %) performed best. On visually-based questions, Gemini 2.5 was superior (82.0 %), while other models scored around 70-73 %. Gemini 2.5 significantly outperformed, GPT-4.5 and Gemini 2.0 overall, and GPT-4.5 and Claude 3.7 on visually-based questions. Conclusion: Multimodal LLMs, particularly Gemini 2.5, demonstrate significant proficiency on the Japanese National Examination for Dental Hygienists, including questions with visual elements. These findings suggest a growing potential for LLMs as educational tools in dental hygiene. However, current limitations in accuracy and reliability necessitate further refinement and cautious integration into educational and clinical settings.

Indexed as

ChatGPT-4.5 PreviewClaude 3.7 SonnetDental hygienist licensing examinationGemini 2.0 Flash Thinking ExperimentalGemini 2.5 Pro ExperimentalOpenAI o3-mini-high

Identifiers

PMID41585131
PMCPMC12825506

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.