RESUMEN
Knowledge of the different anatomical variations in root canal system of dedicious dentition will improve the practice of the pediatric dentists. The teeth with C-shaped root canal configurations are definitely a problem in endodontic treatment. Dentists who are specialists of endodontics must have adequate knowledge about various root canal morphologies of primary tooth that have a tendency for rapid progression of dental caries to achieve a technically satisfactory outcome. This report presents an extraordinary case of unusual tooth morphology involving the mandibular first primary molar with a C-shaped configuration which has not yet been reported.
Asunto(s)
Tomografía Computarizada de Haz Cónico/métodos , Mandíbula , Diente Molar/anatomía & histología , Tratamiento del Conducto Radicular , Raíz del Diente/anatomía & histología , Diente Primario/anatomía & histología , Variación Anatómica , Niño , Caries Dental/diagnóstico por imagen , Caries Dental/terapia , Cavidad Pulpar/anatomía & histología , Cavidad Pulpar/diagnóstico por imagen , Femenino , Humanos , Diente Molar/diagnóstico por imagen , Raíz del Diente/diagnóstico por imagen , Diente Primario/diagnóstico por imagenRESUMEN
Gorlin-Goltz syndrome (GGS) is an uncommon autosomal dominant inherited disorder which comprises the triad of basal cell carcinomas (BCCs), odontogenic keratocysts, and musculoskeletal malformations. Besides this triad, neurological, ophthalmic, endocrine, and genital manifestations are known to be variable. It is occasionally associated with aggressive BCC and internal malignancies. This report documents a case of GGS with a novel mutation in the PTCH1 gene in an 11-year-old child. The clinical, radiographic, histopathologic and molecular findings of this condition, and treatment are described, and a review of GGS was carried out.
Asunto(s)
Síndrome del Nevo Basocelular/diagnóstico , Síndrome del Nevo Basocelular/patología , Carcinoma Basocelular/diagnóstico , Neoplasias Maxilomandibulares/diagnóstico , Mutación Missense , Tumores Odontogénicos/diagnóstico , Receptor Patched-1/genética , Síndrome del Nevo Basocelular/genética , Carcinoma Basocelular/genética , Niño , Cabeza/diagnóstico por imagen , Cabeza/patología , Histocitoquímica , Humanos , Neoplasias Maxilomandibulares/diagnóstico por imagen , Neoplasias Maxilomandibulares/genética , Masculino , Microscopía , Tumores Odontogénicos/diagnóstico por imagen , Tumores Odontogénicos/genética , Radiografía Panorámica , Radiografía Torácica , Tomografía Computarizada por Rayos XRESUMEN
OBJECTIVE: This study evaluated the prevalence and morphologic characteristics of ponticulus posticus (PP) by using cervical 3-dimensional (3-D) cone-beam computed tomography (CBCT) scan images. METHODS: This was a retrospective study conducted by selecting cervical 3-D CBCT images of 698 patients, which were examined for the presence and types of PP. RESULTS: In 257 patients, 438 PPs, complete or partial, bilateral or unilateral, were identified on the 698 cervical 3-D CBCT scans; therefore, the prevalence was 36.8%. Bilateral complete PP and partial PP were observed in 6.3% and 16.2% of subjects, respectively. There was a significant difference in the prevalence between males and females (P = .001) and between the right and left sides between males and females, but not between age groups. CONCLUSION: Ponticulus posticus is a relatively common anomaly in this Turkish sample, which may have implications for those who perform clinical procedures on the upper cervical spine.