Yeh "bond"??? Not the shaken/stirred Bond but I'm talking about the bond between the teeth and various resin materials we use nowadays to fill a tooth. By now all of you reading this must have atleast one tooth-coloured resin filling in your mouth. Dental composite resins are types of synthetic resins which are used in dentistry as restorative material or adhesives. Synthetic resins evolved as restorative materials since they were insoluble, aesthetic, insensitive to dehydration, easy to manipulate and reasonably inexpensive. Composite resins are most commonly composed of Bis-GMA monomers, a filler material such as silica and in most current applications, a photoinitiator. A photoinitiator is a substance added to the composite material which catalyses the setting of the resin by applying light of a certain frequency. Technically the silver amalgam fillings are good and last longer when properly done. But they're also unsightly and cant be used on surfaces that have no retention to hold these fillings.. In short, they can't be used in the anterior aesthetic zone.. Also there is the growing concern of mercury being present in the silver fillings. This is where the Composite Fillings come in. They mimic the tooth structure and blend beautifully to give a lifelike appearance. Stronger composites are used for restorations in the teeth with decay on chewing surfaces.
So all in all, composites are the way to go... So dont go to your dentist asking for 'chaandi' in your tooth. Go 'au naturel'...
