A 41 year old man presented to the outpatient department with a three month history of difficulty in walking. He also had a history of positive sensory symptoms in the form of pins and needle sensation mostly below the waist. His symptoms had been progressive and there was no significant family history. He demonstrated a spastic gait and could only walk with assistance and support. DTR were hypertonic and sensory deficit was observed below twelfth dorsal vertebra. Sphincter abnormalities were present. Plantars were extensor bilaterally. Cerebral and spinal MRI with contrast was unremarkable. Brucella antigen titers were significantly high. CSF report was consistent with neurobrucellosis. After detailed analysis of his history, clinical picture and investigations the diagnosis of neurobrucellosis was made. Combined antimicrobial therapy was started, his neurologic condition gradually improved and he was able to walk without help after three months of treatment. Hence this case showed that neurobrucellosis may present as acquired progressive spastic paraparesis and it should always be borne in mind in patients with spastic paraparesis.
Aim: The purpose of this in vitro study was to determine the effect of different composite placement techniques on gingival microleakage of giomer restorations. Materials and methods: Sixty class II preparations were created in 30 extracted molar teeth with cervical margins 1 mm below the cementoenamel junction. The teeth were divided into three groups of 10 teeth each. In group I, teeth were restored with open sandwich technique using Beautifil II and Beautifil II Flow. In group II, teeth were restored with snowplow technique using Beautifil II and Beautifil Flow. In group III, teeth were restored with oblique increment technique using Beautifil II. After thermocycling and immersion in 2% methylene blue, the teeth were sectioned and dye penetration was evaluated. Results: Statistically significant reduction in microleakage was found along the gingival walls in snowplow restorations compared to sandwich restoration and oblique increment restorations. Clinical significance: Microleakage was reduced along the gingival walls in snowplow restorations. Conclusion: Microleakage was significantly lower in the snowplow restorations.
Aim and objective
To evaluate the marginal adaptation at the tooth-restoration interface at enamel and cementum margins using composite restoration reinforced with novel enamel inserts/biofillers.
Materials and methods
Standardized class V box-shaped cavities were prepared in 40 extracted maxillary first premolar teeth which were divided randomly into four experimental groups consisting of 10 samples each. Group I: Bulk placement. Groups II: Horizontal incremental technique. Group III: Restoration with precured composite balls (megafillers). Group IV: Restoration with biofillers. All the cavities were restored with visible light-activated direct restorative nanocomposite. The specimens were thermocycled for 24 hours. After thermocycling, the samples were immersed in a 1% methylene blue for 4 hours and subsequently evaluated for microleakage. Microleakage scores (0–4) were obtained from gingival margins of class V restorations and analyzed by statistical analysis. Evaluation of the data was performed by Kruskal–Wallis one-way analysis of variance (ANOVA), and Mann–Whitney U tests.
Results
Microleakage scores have indicated restorations with biofillers showed best results followed by megafillers, incremental horizontal build-up, and bulk filling.
Conclusion
Biofillers provide a novel approach in improving microleakage and marginal adaptability of composite resin restorations.
Clinical significance
Incorporation of inserts, which are capable of adequate bonding to resin and tooth, may provide improved marginal adaptability and reduce microleakage around restorative margins.
How to cite this article
Biradar N, Allappanavar KS, Shetty NK, et al. Evaluation of Marginal Adaptation of Composite Restorations Reinforced with Novel Enamel Inserts (Biofillers) in Class V Cavities. J Contemp Dent Pract 2020;21(12):1368–1373.
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