Oral Cancer Screening: Past, Present, and Future

Area of Science:

• Public Health
• Oncology
• Preventive Medicine

Background:

• Oral cancer presents a significant public health challenge with increasing incidence in young adults.
• Late-stage diagnosis is common due to poor public awareness, leading to high mortality rates.
• Precancerous lesions are visually detectable, offering opportunities for early intervention.

Purpose of the Study:

• To review existing oral cancer screening studies and evaluate their effectiveness.
• To identify research gaps and future directions for improving oral cancer detection.
• To assess the feasibility and cost-effectiveness of screening in various healthcare settings.

Main Methods:

• Systematic review of oral cancer screening studies, including one randomized clinical trial.
• Analysis of screening feasibility and outcomes in different healthcare contexts (e.g., dental practices, primary care).
• Evaluation of evidence regarding the impact of screening on disease downstaging and mortality reduction.

Main Results:

• Visual oral cancer screening is feasible, particularly for high-risk populations, and can be cost-effective.
• Opportunistic screening in dental practices is recommended where resources are available, but evidence for downstaging is weak.
• Primary health care workers show promising outcomes for screening in low-resource settings.

Conclusions:

• While screening is feasible, population-based screening is not widely recommended due to insufficient evidence of mortality reduction.
• Continuous screening processes and emerging technologies are crucial for improving detection accuracy.
• Further research is essential, especially in primary care settings, to enhance oral cancer screening strategies.