Objective: This study aimed to examine the significance of dental involvement in oral intake support for patients receiving enteral nutrition via gastrostomy or nasogastric tube, through oral function evaluation using videoendoscopic evaluation of swallowing (VE) and oral hypofunction tests, and multidisciplinary collaboration. Methods: Two patients (Case 1: 67-year-old male with gastrostomy; Case 2: 99-year-old female with nasogastric tube) receiving enteral nutrition were evaluated at a dental clinic. Oral function assessment included VE (Hyodo score) and oral hypofunction tests (oral hygiene, moisture, occlusal force, tongue-lip motor function, tongue pressure, masticatory function, and swallowing screening). Individualized oral intake support plans were developed in collaboration with dental hygienists, nurses, nutritionists, caregivers, with the involvement of family members. Interventions included oral care, swallowing exercises (Patakara and Aiube exercises), denture fabrication, and dietary adjustments. Results: In Case 1, mild aspiration (Hyodo score 5) was confirmed initially, but by six months, oral intake of soft rice and canned food was resumed without recurrence of aspiration pneumonia. Oral hygiene and moisture improved, and swallowing questionnaire scores decreased markedly (from 45 to 7). In Case 2, denture placement allowed immediate oral intake of the patient’s target food (homemade cookies), with gradual expansion to regular meals. Although VE scores remained stable (3), masticatory and swallowing function improved, and daily meal frequency increased. In both cases, individualized support reflecting patient preferences, combined with multidisciplinary cooperation, promoted functional recovery. Conclusion: VE and oral function tests in dental clinics provided objective data supporting decisions to resume oral intake in enteral nutrition patients. Sustained involvement of family and healthcare professionals, along with patient motivation, played a crucial role in functional improvement. Expanding this collaborative support model in community-based care may enhance its applicability and effectiveness.

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