Influence of the concentration of minor components on the stability and biofunctionality of a chemically cured dental resin

Authors

  • Anastasia Mishina Universidad de la Habana
  • Rosa Mayelin Guerra Bretafia Universidad de la Habana
  • Ivette Durán Ramos Universidad de la Habana
  • Juan D. Sabatier Cadalso Universidad de la Habana

Abstract

The employment of polymeric materials as sealants for pits and fissures allows to prevent dental caries with high cost-profit ratio. These products are offered as monomer mixes to be set on the molar and premolar faces are introduced by self in pits and fissures for polymerizing in situ. By this way, is possible to obtain very thin polymeric films which seal and isolate the most vulnerable parts of dental anatomy obstructing the buccal microbial development. CUBRIDEM is a self-cured sealant for pits and fissures, which is supplied in two portions: a "Base" and a "Diluent". Working and setting times of this sealant at 23 °C agree with international standards and CUBRIDEM remains stable by one year minimum, when stored at 2-8 °C. This work deals with the obtainment of a stable CUBRIDEM at higher storage temperatures, characterized by suitable working and setting times in tropical climates. Experimental work was carried out according to 23 factorial designs, where the influence of minor components: benzoylperoxide (PB), N,Ndimethyl-p-toluidine (DMPT) and hydroquinone monomethyl ether (MQH) was studied while keeping monomeric composition unchanged( bis-GMAIDMTEG:1 /l).The new formulation, introduces changes in Diluent (0.8 % PB and 0.05 % MHQ) and Base (0.6 % DMPT) compositions. Therefore, working times longer than 35 s and setting times smaller than 140 s are obtained, when CUBRIDEM is handled at (30 ± 2) °C and stored no more than two months at the same temperature. Furthermore, storage at (16 ± 2) °C produces similar results for longer periods of times.

Published

2022-05-27

How to Cite

Mishina, A. ., Guerra Bretafia, R. M. ., Durán Ramos, I. ., & Sabatier Cadalso, J. D. . (2022). Influence of the concentration of minor components on the stability and biofunctionality of a chemically cured dental resin. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) CHEMICAL SCIENCES JOURNAL, 32(2), 087-091. Retrieved from https://revista.cnic.cu/index.php/RevQuim/article/view/1628

Issue

Section

Research articles