7 research outputs found
Endodontic management of open apex using MTA and platelet-rich fibrin membrane barrier: A newer matrix concept
Objectives: Endodontic management of open apex using MTA and platelet-rich fibrin membrane as an apical
matrix barrier.
Study design: An immature tooth with pulpal necrosis and periapical pathology imposes a great difficulty to the
endodontist. Endodontic treatment options for such teeth consist of conventional apexification procedure with and
without apical barriers. This article demonstrates the use of an apical matrix barrier in form of a platelet rich fibrin
membrane for stabilization of MTA in root end apexification procedure. PRF is an autologous fibrin matrix containing
a large quantity of platelet and leukocyte cytokines, which enhance healing by release of growth factors.
These case reports present apexification and successful healing with combined use of MTA and PRF membrane as
an apical barrier
Results: PRF membrane can serve as an efficient apical matrix for condensation of MTA. Combination of PRF
membrane and MTA is an effective method for management of difficult cases of open apex. PRF is a strong fibrin
membrane enriched with platelet and growth factors that accelerate periapical healing
Influence of elevated carbon dioxide and ammonium nutrition on growth and nitrogen metabolism in wheat (Triticum aestivum)
Growth under elevated CO2 (EC) conditions inhibits nitrate (NO3-) assimilation in crop plants, hence ammonium (NH4+) nutrition is beneficial compared to NO3– nutrition under EC conditions. In the present study, an attempt was made to compare the suitability NH4 + vs mixed NH4 + + NO3 – nutrition in wheat (Triticum aestivum L.). Wheat seedlings supplied with NH4+ alone or with both NH4+ + NO3– as nitrogen (N) source and grown under ambient (380 μl/l, AC) or elevated (600±50 μl/l, EC) CO2 conditions were analyzed for growth and biochemical parameters. Plants receiving only NH4+ as N source showed significant reduction in growth parameters. The negative effects of NH4+ nutrition were manifested in form of reduced root length, root surface area and thinner leaves under EC. Negative effects of NH4+ nutrition were ameliorated in plants receiving mixed NH4 + + NO3 – nutrition. Supplementing NO3 – -N with NH4+ -N led to the enhancement of various morphological and biochemical parameters in EC grown plants. Activity and gene expression of the enzymes, nitrate reductase and glutamine synthetase was significantly higher in plants supplied with both NH4+ + NO3– ions and grown in EC, as compared to plants grown in AC, resulting in lesser reduction in N content of the EC grown plants. Our study indicates that mixed NH4+ + NO3– nutrition will be more suitable for wheat cultivation under high CO2 conditions in future
Successful management of pulpo-periodontal lesion in maxillary lateral incisor with palatogingival groove using CBCT scan
Palatogingival groove is a rare developmental anomaly involving the lingual surface of the maxillary incisor and resulting in severe endodontic and periodontal lesions. This case report describes a multidisciplinary approach for the combined management of the endodontic and periodontal problems for successful rehabilitation of the involved tooth. Cone-beam computed tomography (CBCT) helped in correct diagnosis of the lesion and hence enabled effective treatment
Corporate governance, firm performance, and business group affiliation: evidence from India
Endodontic management of open apex using Biodentine as a novel apical matrix
Aim: Endodontic management of open apex using Biodentine as an apical matrix.
Summary : An immature tooth with pulpal necrosis and periapical pathology imposes a great difficulty to the endodontist. Endodontic treatment options for such teeth consist of conventional apexification procedure with and without apical barriers. Biodentine™ is new calcium silicate based cement that exhibits physical and chemical properties similar to those described for certain Portland cement derivatives. This article demonstrates the use of the newer material, Biodentine as an apical matrix barrier in root end apexification procedure. This case reports present apexification and successful healing with the use of Biodentine as an apical barrier matrix.
Conclusion : Apexification in one step using an apical plug of Biodentine can be considered a predictable treatment and may be an alternative to mineral trioxide aggregate apexification