Abstract: The present invention discloses an oral composition comprising a combination of probiotic bacteria selected from the group comprising Streptococcus, Eubacterium, Neisseria, Veillonella and pH-rising and/or buffering components, which re-establishes an oral microflora associated with good oral health in subjects with a disturbed oral microflora. The invention also discloses the use of the oral composition in combination with other oral health promoting products to help subjects suffering from disorders such as oral dryness, caries, halitosis, inflamed oral mucous membranes or oral fungal infections to restore good oral health.

Abstract: A test kit is disclosed for diagnosing periodontal disease in a patient by analysing a sample from the oral cavity of the patient. The test kit includes at least a first detection assay for detection of a first substance originating from bacteria and at least a second detection assay for detection of a second substance originating from the immune or inflammatory system of the patient.