ABSTRACT
A number of developmental anomalies can be encountered in clinical situations, which directly or indirectly can affect the treatment plan. These anomalies in the primary dentition can be of immense clinical significance since they can have a bearing on the permanent dentition. Here we report a case of fusion of a deciduous maxillary central incisor with its adjacent supernumerary tooth, presenting with the complication of dentoalvelolar abscess. Clinical observation along with periapical radiographs were used to arrive at a diagnosis. This case report emphasizes the need to attempt simple, esthetic conservative procedures before complex treatment alternatives are contemplated. Also, a review of literature is presented.
ABSTRACT
Soft tissue injuries are relatively common following traumatic dental injuries in children. This report describes a case of a nine year old girl who had a foreign body embedded in the lower lip due to fall, while playing. Thorough clinical examination followed by soft tissue radiographs confirmed the presence of a fractured incisal fragment, which was surgically retrieved under local anesthesia. The fragment was then reattached using a dentin bonding agent. Fragment reattachment is a realistic alternative to resin composite buildup for restoring esthetics and function of the traumatized dentition. The natural fragments can be used to ensure the restoration “ad integrum” of the dental crown by simple bonding. With expected improved bonding technology in the future, these fragments may serve for many years.
ABSTRACT
The purpose of this study was to test the support to undermined occlusal enamel provided by posterior restorative composite (FiltekTM P60, 3M Dental products USA), polyacid modified resin composite (F2000 compomer, 3M Dental products, USA.), radiopaque silver alloy-glass ionomer cement (Miracle Mix. GC Corp, Tokyo, Japan) and Glass Ionomer cement (Fuji IX GP). To test each material, 20 human permanent mandibular third molars were selected. The lingual cusps were removed and the dentin supporting the facial cusps was cut away, leaving a shell of enamel. Each group of prepared teeth was restored using the materials according to the manufacturer's instructions. All the specimens were thermocycled (250 cycles, 6 degrees C- 60 degrees C, dwell time 30 seconds) and then mounted on an acrylic base. Specimens were loaded evenly across the cusp tips at a crosshead speed of 5 mm /minute in Hounsfield universal testing machine until fracture occurred. Data obtained was analyzed using analysis of variance and Studentized- Newman- Keul's range test. No significant differences were detected in the support provided by P-60, F 2000, Miracle Mix or Fuji IX GP groups. The support provided to undermined occlusal enamel by these materials was intermediate between no support and that provided by sound dentin. Without further development in dental material technology and evidence of its efficacy, restorative materials should not be relied upon to support undermined occlusal enamel to a level comparable to that provided by sound dentin.