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The Mobilization-Observation-Behaviour-Intensity-Dementia (MOBID) Pain Scale has been developed for the assessment of pain in elderly individuals with severe dementia. From the initial draft of the MOBID, the teeth/mouth care item was removed due to its low correlation with the total score. However, the observation of this item was done by non-dental professionals only. The aim was to revisit the unique teeth/mouth care video uptake fragments with a group of experienced elderly care dentists, as to establish the reliability of this item.Using the Orofacial MOBID Pain Scale, 11 fragments were assessed by 12 specialists during two sessions with a 4-week interval. The specialists scored whether or not they observed orofacial pain/discomfort-related behaviours (pain noises, facial expressions and/or defence) and/or dementia-related behaviours (anxiety, aggression and/or confusion). The threshold for agreement in scoring was arbitrarily set at 66.6%. As a next step, reliability was quantified using Cohen's kappa.For only two video fragments, substantial agreement was obtained during both sessions, while for three fragments, the agreement was substantial during one session only. In addition, only three observers were able to provide consistent scores. For two of those, the various kappa values could be qualified as moderate to good. Notably, all consistent scores pertained to dementia-related behaviours; not to orofacial pain/disability-related behaviours.Teeth/mouth care, as displayed on video uptakes, cannot be interpreted reliably by experienced elderly care dentists in terms of orofacial pain/discomfort-related behaviour or dementia-related behaviour with the Orofacial MOBID Pain Scale.