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Fig. 2 | BMC Oral Health

Fig. 2

From: Case report of a molar-root incisor malformation in a patient with an autoimmune lymphoproliferative syndrome

Fig. 2

Radiographic and clinical characteristics of MRIM in a patient with ALPS. (a) A dental panoramic tomogram (DPT) taken when the patient was 6 years old reveals small pulp chambers and thin, short roots of all four primary second molars. In all four second primary molars, only thin horizontal lines can be seen presenting dental pulp chambers. The lack of dental pulp is more pronounced in both lower second primary molars. Comparison of the volumes of the dental pulps between the first and second primary molars reveals a substantial difference, with the second primary molars having a much smaller dental pulp chamber. Fillings are apparent on the primary mandibular second molars. Under the filling on the right side, there is a secondary caries lesion with no signs of periapical inflammation. (b) An intraoral image of the patient at the age of 12 years shows the permanent dentition. The tooth crowns show normal morphology except for the hypoplastic incisal thirds of the upper central incisors, which were both built up shortly upon eruption (marked with arrows). (c) A DPT taken at the same age (12 years) shows that in all four permanent first molars (PFMs), the pulp chambers are hardly recognizable and appear to be constricted into a narrow straight form and that the roots of these teeth are shorter and thinner than normal. (d) Periapical radiographs reveal barely visible contours of the dental pulp of all four PFMs. In particular, the lower PFMs show severely aberrant roots with no identifiable pulp chambers. In tooth 46, periodontal inflammation is visible, most likely a sequel of the aberrant tooth root

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