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Dental Journal (Majalah Kedokteran Gigi)

ISSN 1978-3728

Vol. 47 / No. 2 / Published : 2014-06

TOC : 1, and page :63 - 66

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Original Article :

Characteristic evaluation of rice husk ash with chitosan high molecule nanoparticle as dentinogenesis material

Author :

  1. Pretty Farida Sinta Silalahi*1
  2. Trimurni Abidin*2
  3. Harry Agusnar*3
  1. Departemen Ilmu Konservasi Gigi, Fakultas Kedokteran Gigi Universitas Sumatera Utara
  2. Departemen Ilmu Konservasi Gigi, Fakultas Kedokteran Gigi Universitas Sumatera Utara
  3. Departemen Ilmu Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sumatera Utara

Abstract :

Background: Mineral trioxide aggregate (MTA) and resin modified glass ionomer cement (RMGIC) are the material used for indirect and direct pulp capping due to biocompatibility, but these materials have many shortcomings. Mineral trioxide aggregate contains a little amount of arsenic and has long setting time, while HEMA containing RMGIC are cytotoxic. Rice husk ash nanoparticles (RHAn) is a potential source of silica. High molecular chitosan nanoparticles (HMCn) can stimulate the formation of reparative dentin. Combination of these two materials is biocompatible and have good sealing ability. Purpose:This study was aimed to study RHAn + HMCn used as biomaterials for prevention of pulpodentinal complex by examined at the microstructure of dentin surfaces applied with RHAn + HMCn. Methods:Twenty-four mandibular premolar teeth extracted for orthodontic purposes, were made cavity class I preparation with 3 mm depth above the cemento-enamel junction (CEJ). Then each tooth was cut in bucco-lingual direction and each part was cut using a cervical disc bur. Samples were divided into 3 groups, group I the teeth were applied with MTA; group II the teeth were applied RMGIC; group III the teeth were apllied with RHAn + HMCn. Characterization was done by using Scanning Electron Microscopy (SEM) on the interface between test material and dentin adjacent to the pulp to see surface microstructure. Results:Material microstructure of RHAn + HMCn applied to the dentine showed tags like structure which was more significant than MTA. RHAn + HMCn showed to have better sealing ability than MTA. Porosity of ASPn + HMCn was less than MTA and RMGIC. Conclusion: The study suggested that the combined RHAn + HMCn biomaterials could be used as an active biomaterial that can maintain the integrity of pulp dentinal complex. 

Keyword :

Rice husk ash nanoparticles (RHAn), high molecular chitosan nanoparticles (HMCn), scanning electron microscopy (SEM),


References :

  1. Ghavamnasiri M , (2005). A histopathologic study on pulp response to glass ionomer cements in human teeth. - : J Dent


   


Archive Article

Cover Media Content

Volume : 47 / No. : 2 / Pub. : 2014-06
  1. Characteristic evaluation of rice husk ash with chitosan high molecule nanoparticle as dentinogenesis material
  2. The relationship determination between menarche and the peak of skeletal maturation using hand wrist and cervical vertebrae inde
  3. The maturition and eruption of permanent teeth in mixed dentition children
  4. Surgical exposure and orthodontic treatment on labially impacted maxillary central incisor
  5. Reduction of salivary mutans streptococci in children with fixed orthodontic appliance after yoghurt consumption
  6. Application of social learning theory in the management of children dental fear and anxiety
  7. Correcting occlusal vertical dimension using modified stainless steel crown restoration in severe-early-childhood-caries case
  8. Correction of posterior and anterior crossbite using fixed orthodontic appliance with rapid maxillary expansion and intermaxillary elastic
  9. Iron exposure to specific protein expression of extracellular polymeric substance (eps) of aggregatibacter actinomycetemcomitans biofilm
  10. Topical applications effect of casein phospho peptide-amorphous calcium phosphate and sodium fluoride on salivary mutans streptococci in children
  11. The characterization of stem cells from human exfoliated deciduous teeth using trypsin enzym