Anemia, Hematinic Deficiencies, Hyperhomocysteinemia, And Serum Gastric Parietal Cell Antibody Positivity In Recurrent Aphthous Stomatitis Patients With Vitamin B12 Deficiency, Yi-Ping Wang, Yi-Pang Lee, Yu-Hsueh Wu, Julia Yu-Fong Chang, Andy Sun, Chun-Pin Chiang

Journal of Dental Sciences

Background/purpose: Our previous study found that 30 of 430 recurrent aphthous stomatitis (RAS) patients have vitamin B12 deficiency. This study assessed whether the vitamin B12-deficient RAS (B12D/RAS) patients had significantly higher frequencies of anemia, hematinic deficiencies, hyperhomocysteinemia, and serum gastric parietal cell antibody (GPCA) positivity than healthy control subjects and evaluated whether all B12D/RAS patients had pernicious anemia (PA).

Materials and methods: The blood hemoglobin (Hb) and serum iron, vitamin B12, folic acid, homocysteine, and GPCA levels in 430 RAS patients including 30 B12D/RAS patients and 430 healthy control subjects were measured and compared.

Results: We found that 30 B12D/RAS …

Interaction Between Removable Partial Denture Use And Number Of Natural Teeth On Health-Related Quality Of Life In Older Adults: A Cross-Sectional Study, Pai-Shien Liao, Chia-Hsuan Chou, Ya-Xin Zheng, Jiiang-Huei Jeng, Wan-Chuen Liao, Ying-Fang Chen

Journal of Dental Sciences

Background/purpose: The compensatory benefit of removable partial dentures (RPDs) on health-related quality of life (HRQoL) depends on the number of natural teeth. This study aimed to evaluate the interaction between RPD use and number of natural teeth on HRQoL, measured by EuroQoL 5-Dimension 5-Level (EQ-5D-5L) and Visual Analogue Scale (VAS).

Materials and methods: This cross-sectional study included 410 older adults. Dental status, including the number of natural teeth and the decayed, missing and filled teeth (DMFT) index, and RPD use were assessed. Participants were categorized into three groups (0-9, 10-19, and ≥ 20 natural teeth). HRQoL was measured using the …

Evaluation Of Retrieval-Augmented Generation (Rag) With Gpt-4o For Maxillofacial Prosthodontics Clinical Questions, Vinsensia Launardo, Merve Koseoglu, Lucky Susanto, Michael Kase, Amanda Colebeck, Heidi Huber, Maribeth Krzesinski, Derry Wijaya, Muhammad Ruslin, Alvin Gerard Wee, Heng-Li Huang, Lih-Jyh Fuh, Cortino Sukotjo

Journal of Dental Sciences

Background/purpose: Large language models (LLMs) offer promising education and clinical decision support to help address the global shortage of maxillofacial prosthodontists. To overcome the lack of source traceability in base LLMs, this study evaluated a retrieval-augmented generation (RAG) architecture for answering complex clinical questions.

Materials and methods: An expert panel consisting of five maxillofacial prosthodontists selected 15 high-complexity clinical questions. Responses were generated using base GPT-4o and a naive RAG-GPT-4o model built with domain-specific literatures. Outputs were evaluated across five parameters using a 5-point Likert scale and analyzed via Mann-Whitney U tests.

Results: No statistically significant differences …

Exploring Consumers’ Intention And Behavior In The Circular Economy : Evidence From Vietnam, Tuan Hoang Nguyen, Vo Minh Thang Phan

Applied Environmental Research

This study aims to address the key gaps in understanding the factors influencing the intention–behavior relationship of consumers in the context of the circular economy (CE). Grounded in the theory of planned behavior (TPB), this research extends the framework by integrating social pressure, attitudes toward green consumption, and the availability of CE products as crucial components that shape intention and behavior. Data were collected from 603 Vietnamese consumers and analyzed using partial least squares structural equation modeling (PLS-SEM). The results confirm the core TPB constructs, with perceived behavioral control emerging as the most influential factor. Notably, attitude toward green consumption …