NCT04960852

Color Match Assessment of a Single Shade Structurally Colored Universal Resin Composite

Completed NA Last updated 10 August 2021

What this trial tests

NA trial testing a single shade structurally colored universal resin composite in Dental Caries (Disorder) in 21 participants. Completed in 6 August 2021.

Timeline

1 April 2021

Primary endpoint
6 August 2021

6 August 2021

Quick facts

Lead sponsor	National Research Centre, Egypt
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	na
Design	single group
Masking	none
Primary purpose	treatment
Enrollment	21
Start date	1 April 2021
Primary completion	6 August 2021
Estimated completion	6 August 2021
Sites	1 location across Egypt

Drugs / interventions tested

• a single shade structurally colored universal resin composite

Conditions studied

• Dental Caries (Disorder) — all drugs for Dental Caries (Disorder) →

Sponsor

National Research Centre, Egypt — full company profile →

Who can join

Adults 16 to 45, any sex, with Dental Caries (Disorder). Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Matching the color of resin composite utilized in anterior teeth is believed to be one of the most challenging tasks a dentist has to face in daily practice. The color of the teeth is primary influenced by dentin; on the other hand, enamel has a major influence on the color perception in terms of lightness. In the layering concept, the missing dental tissues are substituted in increments with resin composite of the exact shade as the dental tissue. A translucent composite resin is applied over a more opaque composite resin to achieve a depth perception similar to that of the natural teeth. Which indicates that the visible color is the consequence of diffuse reflectance from the internal dentin or opaque material layer through the external translucent layer.

There are numerous elements that make the color matching problematic. These problems arise from the point that color matching rely on many different chromatic properties related to the teeth and resin composite; those include hue, chroma and value; translucency, opalescence and fluorescence; light diffusion and transmission; and luster and texture of the surface. To reach the ideal esthetics, restorative material should mimic the natural tooth in the previously mentioned properties, in addition of having a long time color stability.

Massive efforts were achieved over the years to improve the esthetic properties of dental resin composite restorative materials. Recently, a single shade structurally colored universal composite (Omnichroma, Tokuyama Dental) intended for use with most direct restorative clinical cases was introduced in the market. Its manufacturer claimed that it exhibits color change toward the color of the surrounding hard dental tissues. Thus, it has the advantages of improving the esthetic appearance of the restoration, decrease dependence on shade-matching procedures, decrease the number of shade guide tabs, and counteract for color mismatches to some degree.

Up till now no studies assessed the color match of Omnichroma resin composite in anterior teeth cavities clinically. Thus, the aim of this clinical trial was to investigate if the single shade structurally colored universal resin composite (OMNICHROMA) will modify its shade to match the tooth structure shade in anterior teeth cavities.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.