In this issue:
Camouflage® NanoHybrid Composite – Case of the Week: Episode 158
Author
In the Case of the Week for Episode 158 of “Chairside Live,” our very own cohost, Megan Strong, hopped into the dental chair for some necessary restorative care. I decided to use her case as an opportunity to demonstrate the esthetics and usability of Camouflage® NanoHybrid Composite (Glidewell Direct; Irvine, Calif.), a restorative material developed by the manufacturing arm of Glidewell Laboratories.
Figure 1: One relatively small cavitary lesion in an otherwise intact arch classifies Megan as a patient with low risk for dental caries. Using local anesthetic with vasoconstrictor, Megan received the rubber dam and was readied for the procedure. I like to use the rubber dam because it controls the soft tissue, increases visibility and keeps the working area dry. I think it’s essential to have a dry field to prevent contamination of the cavity by oral bacteria and to attain the best marginal seal for the restoration.
Figure 2: Here, I’m using a caries detector dye, which works by staining the collagen that has become denatured by the carious process.
Figure 3: Although this is a simple Class I preparation, the shape of this type of preparation can make it quite challenging. The shape of a Class I preparation is described as having the highest configuration factor (C-Factor), and is therefore the most susceptible to defect due to shrinkage stress.
Figure 4: Careful use of a porcelain bur in a slow-speed handpiece will remove all of the stained, infected soft dentin.
Figure 5: The cavity is acid-etched with 37% phosphoric acid, which will etch both the enamel and the dentin.
Figures 6a, 6b: After rinsing and carefully drying the cavity, OptiBond® Solo Plus™ (Kerr Corp.; Orange, Calif.) is applied for direct bonding to my restorative composite of choice: universal Camouflage NanoHybrid Composite.
Figures 7a, 7b: Because Class I restorations have an increased C-Factor, the contraction stress on bonded surfaces while curing can increase, too. In an attempt to control the shrinkage and to decrease the C-Factor, I like the cavity to receive small increments of composite.
Figures 8a, 8b: With proper lighting and by taking advantage of the ability of Camouflage NanoHybrid Composite to be built up using small, 2 mm increments, the chances for clinical success can be improved.
Figure 9: Camouflage Universal Nanohybrid Composite has a flexural strength of about 134 MPa. That strength, in combination with its esthetics and ease of manipulation, makes it an ideal restorative material for the oral environment.
