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##Background Dens Invaginatus (DI) in paediatric patients presents a challenge in treatment planning, patient management and potentially complex endodontic treatment. DI has been reported to be as prevalent as 0.3% to 10% in permanent teeth. Clinicians may be challenged in managing both the patient and the dental anomaly. ##Aims The aim of these case reports is to highlight the presenting features of DI, treatment strategies and to highlight the need for a national clinical care pathway for children affected by dental anomalies such as DI, in addition to complex traumatic dental injuries and developmental defects of enamel and dentine. ##Conclusions Awareness of the clinical features and early identification of teeth affected by DI can allow for prevention, minimally invasive management, and where necessary, appropriate referral for specialist management of these cases. Sealing the palatal surfaces of young permanent incisors can limit the sequelae of pulpal necrosis in teeth with DI. Teeth with DI and complex anatomical presentation are predisposed to pulpal pathology and restorative management can be extremely challenging. Currently there are limited referral options for General Dental Practitioners who identify cases of DI in primary care settings in Ireland. This may lead to delayed treatment, prolonged symptoms and suboptimal outcomes for patients. A national clinical care pathway is recommended.

##Background Smile agus Sláinte – the National Oral Health Policy (2019), aims to reduce oral health inequalities by enabling vulnerable groups, including the homeless, to access oral healthcare. However, there is sparse evidence regarding the oral health of people experiencing homelessness. This study aims to assess the oral health and oral health-related impact on quality of life among homeless adults for the first time in an Irish population. ##Methods A pilot cross-sectional epidemiological study of homeless adults in Cork City, Ireland, including clinical examination and interviewer-administered questionnaire and OHIP-14 survey, was conducted. A convenience sample was recruited in collaboration with homeless service providers. ##Results The sample consisted of 25 participants. The mean D3vcMFT of the participants was 19.4 (SD ± 7.1). The D3vcT% was 41.8%. Participants had poor oral hygiene, and 70.8% had periodontal pocketing of 4mm or more. Some 79% of participants had experienced dental trauma. Participants’ most commonly reported oral health-related impacts on quality of life were feeling embarrassed (60%), feeling uncomfortable to eat (56%), feeling self-conscious (48%), and painful aching (48%). Conclusions ##Homeless adults in Ireland experience extreme oral health inequalities. To achieve the goals of Smile agus Sláinte, a foundation of high-quality epidemiological evidence is required. Further research will require extensive collaboration with homeless service providers and the wider health profession, and should seek to inform the design of oral healthcare services for homeless adults.