Fluorides represent the basic component of glass powder and if it is to be efficiently extracted by the polyacid
it has to be in crystalline form as fluorite .
PMC: photo polymerized polyacid
Tamol Dispersants from Dow offer formulators a diverse selection of polyacid
, hydrophilic copolymer, and hydrophobic copolymer dispersants to meet a variety of formulation demands.
Some protons of the polyacid
and some basic sites of the support (e.g., hydroxyl groups) can interact.
Combining glycerine (a byproduct from processing vegetable or animal fats) with an organic polyacid
like citric acid can make bio-derived polyesters.
The first is the electrostatic effect ascribed to the nature of polyelectrolyte, the complexing equilibrium is influenced by both the degree of dissociation of polyacid
and the concentration of added salt.
The conventional glass ionomer cement is usually supplied as a powder and a Polyacid
In the present study, the majority of the modifications decrease the VHN; this result could be related to the modification of the liquid powder proportion of the materials when adding the antibacterial agents, since it is reported that microhardness can be affected by the ratio of glass particles to polyacid
. In the current literature, there is no information about the surface roughness or hardness of the control materials.
Product Material type Mixing Dyract XP Polyacid
modified N/A composite resin Nova Compo-B Composite resin N/A Plus EQUIA Glass ionomer 10 seconds cement with a mixer Product Curing Manufacturer Dyract XP Light-cure for Dentsply DeTrey, 20 seconds GmbH, Germany Nova Compo-B Light-cure for Imicryl Dental, Plus 20 seconds Konya, Turkey EQUIA Light-cure for GC Corporation, 90 seconds Tokyo, Japan Table 3: Two-way ANOVA interaction effects.
In line with previous studies suggesting that GICs' microhardness may be affected by the ratio of glass particles to polyacid
, the findings of the current investigation suggest that, indeed, it may be a critical aspect to guide one's decision on the nanofiller concentration for the best microhardness outcomes.
The Giomer concept in based on PRG (Pre Reacted Glass) technology: a glass core, surrounded by a glass ionomer phase enclosed within a polyacid