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Hypoplasia in crown of primary mandibular left lateral incisor identified in infant Japanese girl
Affiliation:1. Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;2. Department of Stomatology (Oral Pathology), School of Dentistry, Universidade Federal de Goiás, Goiânia, Goiás, Brazil;3. Department of Child''s and Adolescent''s Oral Health, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;4. Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil;5. Private Medical Clinic, Belo Horizonte, Brazil;6. Department of Oral and Maxillofacial Pathology, School of Dentistry, Universidade de Pernambuco, Recife, Pernambuco, Brazil;7. Department of Oral and Maxillofacial Surgery, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, A constituent of MAHE, Manipal, Karnataka, India;8. Department of Oral and Maxillofacial Surgery, School of Dentistry, Universidade de Pernambuco, Recife, Pernambuco, Brazil;9. Department of Clinics and Preventive Dentistry, School of Dentistry, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
Abstract:A girl aged 0 years 11 months was referred to our clinic by a local pediatrician for examination of a missing tooth crown of a primary mandibular left lateral incisor. Our intraoral examination showed that seven primary incisors had emerged into the oral cavity, while no tooth crown was noted in the region of the primary mandibular left lateral incisor. A calcified structure was identified close to the gingival margin, which had a bone-like appearance and color, with no inflammation seen in the gingiva around the structure. Furthermore, the pulp space could be seen through the layer of hard tissue located close to the gingival region. A periapical radiograph taken at the first visit demonstrated a root-like structure with dentin and pulp, whereas enamel was not detected. The structure was speculated to be the root of the primary mandibular left lateral incisor, which was in the developmental stage. As there were no abnormal signs or symptoms, we decided to perform periodical examinations at 3-month intervals. Periapical radiographs taken at 1Y0M and 1Y7M showed root formation with no unusual conditions observed around the affected tooth.
Keywords:Hypoplasia  Natal teeth  Regional odontodysplasia
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