This narrative review aimed to (1) map the global research landscape of artificial intelligence (AI) in dementia care, (2) characterize domestic Korean research, and (3) propose priority directions for nurse-led AI research. Methods: International literature was retrieved from PubMed (January 2015 to December 2025; n=5,710) and analyzed using VOSviewer with the Leiden algorithm. Korean literature from RISS (n=265) was synthesized narratively. Results: Publications increased substantially since 2015, with acceleration after 2024 driven by large language models. Five thematic clusters emerged: (1) care, daily living, and digital health; (2) aging and brain structure; (3) risk prediction and clinical data; (4) early screening and behavioral biomarkers; and (5) Alzheimer’s diagnosis and deep learning. Four domains were most relevant to nursing: monitoring technologies, digital biomarkers, AI chatbots for caregivers, and clinical decision support systems. Korean research concentrated on emotional support robots with methodological limitations. Conclusion: Rigorous nurse-led trials with multidimensional outcomes are needed to establish AI’s clinical value in dementia nursing.

Purpose: : This scoping review was designed to identify gaps in knowledge and guide future directions for clinical nursing practices and research on oral hygiene care for endotracheally intubated patients in Korean intensive care units. Methods: : We conducted a scoping review using the methodological framework proposed by Arksey and O’Malley. PubMed, CINAHL, RISS, Science On, and DBpia databases were searched. Two reviewers independently selected the studies and extracted data. A total of 445 studies were identified, of which 17 were included in the final analysis. Results: : No research has been conducted from 2021 to the present. A total of 12 instruments were utilized in 13 studies to assess the effectiveness of oral hygiene care. All studies investigating the effectiveness of oral hygiene care have consistently documented that chlorhexidine has the most significant effect. The frequency and time of oral hygiene care were each examined in one study. Conclusion : A research study is necessary to develop a measurement tool for assessing the effectiveness of oral hygiene care suitable for endotracheal intubated patients in intensive care units. Interventional studies should be conducted to determine the effects of chlorhexidine and the appropriate frequency and time of oral hygiene care. Thereafter, revision of domestic evidence-based clinical practice guidelines by integrating these results will be necessary.