PMC4890067_01
(A) Pretreatment facial photographs of sibling A and (B) pretreatment facial photographs of sibling B
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F1
Two girl siblings aged 11 and 13 years (Figs 1A and B) reported to the Sri Sai College of Dental Surgery, Vikarabad, complaining of retained lower anterior primary teeth.
(A) Intraoral photograph of sibling A, showing retained left deciduous mandibular central incisor and missing permanent mandibular central incisors and (B) intraoral photograph of sibling B, showing retained deciduous mandibular central incisors
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F2
Intraoral examination of the elder sibling (Fig. 2A) showed the presence of retained left primary mandibular central incisor and clinically missing right permanent mandibular central incisor. The other sibling (Fig. 2B) presented with retained left and right primary mandibular central incisors, which were clinically sound with no mobility.
(A) Panoramic radiograph of sibling A, revealing retained left deciduous mandibular central incisor and missing permanent mandibular central incisors and (B) panoramic radiograph of sibling B, revealing retained deciduous mandibular central incisors
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F3
A panoramic radiograph was taken which revealed the congenital absence of both the permanent mandibular central incisors in both the siblings (Figs 3A and B).
Pedigree chart for three generations of respective family showing no significant history
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F4
PMC4890067_02
(A) Posttreatment occlusal view of sibling A, showing lingual arch-supported acrylic prosthesis and (B) posttreatment frontal view of sibling A, showing acrylic prosthesis
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F5
Extraction of retained primary central incisor was done in the elder sibling and fixed functional space maintainer was planned, i.e., lingual arch with anterior acrylic prosthesis (Figs 5A and B).