Objectives. Patients with inflammatory bowel disease have an increased risk of developing oral health problems. The aim of this study was to investigate whether oral diseases in these patients are related to inflammation of the intestine and if there is a correlation between inflammatory bowel diseaseÀspecific health-related quality of life (IBD-HR-QOL) and oral health problems. Study Design. The study was a cross-sectional survey and analysis of self-reported oral health of individuals with a stoma for Crohn's disease (CD), ulcerative colitis (UC), and treated colon cancer (CC). Validated international questionnaires were sent to members of the Stoma Federation of The Netherlands. Because there was an unequal distribution of male and female patients with CD and CC, data of 169 age-matched female patients with CD, UC, and CC with a stoma were analyzed. Results. Patients with CD had significantly more oral health problems compared with those with UC or CC. Patients with CD and UC both had significantly more gingival-related problems compared with patients with CC. There was a significant negative correlation between IBD-HR-QOL and oral health problems. Conclusions. In the 3 distinguishable groups of patients with a stoma, patients with CD had an increased risk for oral health problems, independently from surgical removal of (a part of) the inflamed intestine, suggesting a general increased susceptibility of patients with CD for oral health problems. (Oral Surg Oral Med Oral Pathol Oral Radiol 2020;130:e80Àe86) Statement of Clinical Relevance Patients with inflammatory bowel disease, particularly those with Crohn disease, have an increased risk for oral health problems, which remains after surgical removal of (a part of) the inflamed intestine, necessitating special attention to their oral health from gastroenterologists and dentists.