目 的：探討多元照護方案介入，對慢性精神病患口腔健康與口臭程度之成效。
方 法：採類實驗設計，實驗組(n = 35)接受為期四週的多元照護方案，包括照護指導素材與策略、建置支持性照護情境、與個案的追踪管理，對照組(n = 30)採一般照護；以口腔健康狀況評估表和口氣計，在多元照護方案介入前，及方案結束後一週、三週，評值二組病人口腔健康狀況和口臭程度之變化。
結 果：接受多元照護方案病人，口腔健康改善程度優於對照組 [F (1.72, 8.01) = 4.91, p < .05]，且其成效可持續至介入措施結束後三週 [F (1.72, 174.82) = 107.13, p < .01]。
結論/實務應用：建議精神醫療機構參酌運用多元照護方案，促進慢性精神病患的口腔照護行為，以改善其口腔衛生及生活品質。

Background: Unhealthy oral hygiene seriously impacts both the daily life and the self-esteem of psychiatric patients. Complex interventions improve the oral hygiene and promote the quality of life of these patients.
Purpose: The purpose of this research was to investigate the effectiveness of a complex care program for oral health and halitosis in a population of chronic psychiatric patients.
Methods: This study used a quasi-experimental research design. The experimental group (n = 35) received a complex care program for a period of four weeks. The control group (n = 30) received usual care. The complex care program included providing teaching materials and strategies, establishing a supportive care context, and providing regular patient follow-up. The study gathered data using scales that assess the current status of oral health and of halitosis. Scales were implemented before and after the oral care program at weeks 1 and 3.
Results: This study found significant improvements in the experimental group in terms of the oral health assessment [F (1.72, 8.01) = 4.91, p < .05]. In addition, the effects of the intervention on oral health lasted for at least 3 weeks after the end of the intervention [F (1.72, 174.82) = 107.13, p < .01].
Conclusions / Implications for Practice: The results support the application of the complex care program developed for this study in psychiatric institutions in order to promote positive oral care in psychiatric patients and to improve their oral hygiene and quality of life.