The distribution of traumatic injuries is similar to other national and international data with regard to gender, age and in relation to injury type, location and causes. International and national healthcare associations and teachers in under- and postgraduate education should put effort on increasing the awareness of the guidelines.

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this retrospective clinical study investigated the survival probability of avulsed and replanted permanent teeth in relation to functional healing, replacement and inflammatory resorption. The explorative data analysis included data from 36 patients and 49 replanted permanent teeth with a minimum observation time of 60 days; the patients were generally treated according to the current guidelines of the international Association of Dental traumatology at the university hospital in Munich, Germany, between 2004 and 2017. The mean observation period was 3.5 years. Functional healing was observed in 26.5% (N = 13/49) of the included avulsion cases. In comparison, replacement resorption affected 51.0% (N = 25/49) of the replanted teeth, of which 24.0% (N = 6/25) were lost over the course of years (mean, 6.1 years). In contrast, inflammatory resorption resulted in the early loss of all replanted teeth (mean, 1.7 years) and affected 22.5% (N = 11/49) of all the monitored teeth. Therefore, it can be concluded that tooth avulsion remains a severe dental injury with an unpredictable prognosis. This topic demands further fundamental research aiming to maintain and/or regenerate the periodontal ligament after tooth avulsion, particularly in association with non-physiological tooth rescue.are sparse [16][17][18][19][20] . Therefore, this retrospectively designed clinical study aimed to analyse the prognosis for avulsed and replanted permanent teeth regarding longevity and complications in relation to relevant influential variables, e.g., dry storage time, extra-alveolar storage time, storage media, splinting time, and time to initiation of root canal treatment. Materials and MethodsEthical approval. All the procedures in these studies involving human participants were performed in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The present study protocol was approved by the ethics committee of the Medical Faculty at the Ludwig-Maximilians University (LMU) of Munich . Informed consent was obtained from each participant included in the study and/or their legal guardians. Scientific RepoRtS |(2020) 10:2841 | https://doi.

Molar-incisor hypomineralization (MIH) is a prevalent dental developmental disorder, and ~10%-20% of children and adolescents are affected, 1-3 with a varying degree of severity, ranging from mainly mild opacities to severe enamel breakdowns, mostly in occlusion-bearing areas, shortly after tooth eruption. 4 From the patients' viewpoint,