Dental radiographic information of term newborn babies within the first month: Analyzing five radiographic cases along with physical attributes in Japan |
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| Institution: | 1. Center for Cause of Death Investigation Research and Education, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan;2. Department of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan;3. Department of Forensic Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan;4. Department of Radiology, Hiroshima University Hospital, Hiroshima, Japan;5. Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan;1. Department of Forensic Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan;2. Department of Legal Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan;1. Faculty of Medicine, Universitas Airlangga, Surabaya, East Java, Indonesia;2. Department of Forensic Medicine and Medicolegal, Faculty of Medicine, Universitas Airlangga, Surabaya, East Java, Indonesia;3. Institute of Tropical Disease, Universitas Airlangga, Surabaya, East Java, Indonesia;4. Department of Medical Biology, Faculty of Medicine, Universitas Airlangga, Surabaya, East Java, Indonesia;5. Department of Physiology and Medical Biochemistry, Faculty of Medicine, Universitas Airlangga, Surabaya, East Java, Indonesia;1. Institute of Legal Medicine, Department of Medicine and Surgery, University of Parma, Italy;2. Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, United Kingdom;3. Department of Human and Social Sciences, University of Cassino, Italy;4. Department of Mental Health - Local Health Authority Roma 2 -, Italy;5. Institute of Psychiatry and Psychology, Department of Geriatrics, Neuroscience and Orthopedics, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy;6. Institute of Legal Medicine, Wakayama Medical University School of Medicine Graduate School of Medicine, Japan;7. Department of Electrical Engineering and Information Technology, University of Naples Federico II;1. Department of Anatomical, Histological, Forensic, and Orthopedic Sciences, “Sapienza” University of Rome, viale Regina Elena n. 336, Rome 00161, Italy;2. Department of Medicine and Surgery, University of Parma, via Gramsci n. 14, Parma 43126, Italy;1. Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan;2. Forensic Science Laboratory, Kyoto Prefectural Police Headquarters, 85-3, Yabunouchi-cho, Kamigyo-ku, Kyoto 602-8550, Japan |
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| Abstract: | BackgroundAlthough dental radiography is a valuable tool for age estimation in forensic anthropology and odontology, very limited radiological data are available regarding tooth development in healthy newborn babies during the first month of life.AimThis study aimed to describe the radiological findings of tooth development in babies aged 0 days to 1 month.DesignWe analyzed the postmortem findings of five newborn babies with no known natural cause of death who had undergone autopsy, computed tomography (CT), and dental radiography. We estimated the gestational age for the babies aged 0 days and analyzed the condition of mandibular symphysis, existence of tooth germs, and presence or absence of calcification of the first permanent molars of all the babies.ResultsThe calcified form of 20 deciduous teeth, tooth germs of the permanent upper and lower first molars, and non-calcified mandibular symphysis were observed in each case. However, calcification of the first permanent molar was observed in only two 1-month-old babies.ConclusionThe dental radiographic findings and anthropometric measurements of non-skeletonized, non-mummified term babies confirmed calcification of all the deciduous teeth and the first permanent molar at the age of 0 days and 1 month, respectively. |
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| Keywords: | Newborn teeth calcification Mandibular symphysis Dental radiographic images CT"} {"#name":"keyword" "$":{"id":"k0025"} "$$":[{"#name":"text" "_":"Computed tomography |
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