RESUMEN
Rheumatoid arthritis (RA) is a chronic disease of unknown etiology, characterized by synovitis of the diarthroidal joints, gradual bone erosion, and cartilage destruction. Temporomandibular joint (TMJ) arthritis is frequent in patients with RA, but it is seldom the first joint to be affected. This report presents a case of a female patient with undiagnosed RA who first presented with signs and symptoms of the disease in the TMJs. It highlights the importance of professional awareness and provides a roadmap for clinical and radiologic examination followed by biochemical and genetic monitoring for early diagnosis of RA.
Asunto(s)
Artritis Reumatoide/diagnóstico , Trastornos de la Articulación Temporomandibular/diagnóstico , Adulto , Diagnóstico Diferencial , Diagnóstico Precoz , Femenino , Humanos , Imagen por Resonancia Magnética , Cóndilo Mandibular/patología , Osteoartritis/diagnóstico , Osteofito/diagnóstico , Radiografía Panorámica , Líquido Sinovial , Disco de la Articulación Temporomandibular/patologíaRESUMEN
PURPOSE: The purpose of this systematic review was to compare the survival and complication rates of ceramic veneers produced with different techniques and materials after a minimum follow-up time of 5 years. MATERIALS AND METHODS: A literature search was conducted, using electronic databases, relevant references, citations and journal researching, for clinical studies reporting on the survival of ceramic veneers fabricated with different techniques and materials with a mean followup time of at least 5 years. The search period spanned from January 1980 up to October 2010. Event rates were calculated for the following complications associated with ceramic veneers: fracture, debonding, marginal discoloration, marginal integrity, and caries. Summary estimates, and 5-year event rates were reported. Comparison between subgroups of different materials, as well as statistical significance, was calculated using a mixed effects model. RESULTS: Nine studies were selected for final analysis over an initial yield of 409 titles. No study directly compared the incidence of complications between ceramic veneers fabricated from different materials. Four of the included studies reported on the survival of ceramic veneers made out of feldspathic ceramics; four studies were on glass-ceramic veneers and one study included veneers fabricated from both materials. The mean observation time ranged between 5 and 10 years. Overall, the 5-year complication rates were low, with the exception of studies reporting on extended ceramic veneers. The most frequent complication reported was marginal discoloration (9% at 5 years), followed by marginal integrity (3.9-7.7% at 5 years). There was no statistically significant difference in the event rates between the subgroups of different materials (feldspathic vs. glass-ceramic). CONCLUSION: The results of this systematic review showed that ceramic veneers fabricated from feldspathic or glass-ceramics have an adequate clinical survival for at least 5 years of clinical service, with very low complication rates.
Asunto(s)
Porcelana Dental/química , Diseño de Prótesis Dental , Coronas con Frente Estético , Silicatos de Aluminio , Cerámica , Ensayos Clínicos como Asunto , Estudios de Seguimiento , Humanos , Compuestos de Potasio , Análisis de Regresión , Análisis de SupervivenciaRESUMEN
INTRODUCTION: The knowledge of root canal morphology and the existing anatomical variations is essential for successful endodontic therapy. METHODS: This report presents an extraordinary case of unusual tooth morphology involving the bilateral existence of 7 maxillary and mandibular first and second molars with a single root and a single canal in a patient. RESULTS: Endodontic retreatment of the affected teeth #15, #19, and #18 was performed. Cone-beam computed tomography (CBCT) images confirmed our diagnostic and therapeutic measures after endodontic management of the teeth. CONCLUSIONS: This morphologic variation has not been reported in the literature. The availability of 3-dimensional images further provided the opportunity for the precise description of the anatomy of 7 maxillary and mandibular molars with single roots and single canals.