Dementia is a rapidly growing global health crisis, affecting over 55 million individuals and placing unprecedented strain on healthcare systems, families, and economies. Despite advances in symptomatic management, persistent challenges in early diagnosis, caregiver support, workforce training, and health system integration continue to undermine care quality. This comprehensive review synthesizes current evidence on twelve key domains of dementia care, ranging from barriers to early diagnosis and person?centered models to technology?driven solutions, behavioral symptom management, palliative care, and innovative funding models. The review highlights the persistent gap between evidence?based recommendations and real?world implementation, particularly in low?resource settings. Emerging innovations including telehealth, ambient sensors, artificial intelligence, and value?based payment models offer promising pathways to address these gaps. However, significant barriers remain, including poor bioavailability of some interventions, lack of standardized training, and ethical concerns surrounding surveillance and autonomy. The review concludes that transforming dementia care requires a multi?pronged approach that integrates technological innovation, workforce development, policy reform, and sustained research investment.