Abstract
Objective: to evaluate the clinical performance of the dual shade layering and polychromatic resin composite layering techniques using a randomized controlled trail. Material and Methods: 42 participants (84 restorations) of class IV or class III through and through within a pair of anterior contra-lateral teeth were randomly allocated into two groups according to technique of composite restoration placement: control “polychromatic layering” and intervention “dual-shade layering”. Follow-up was done at 1 month (baseline) and 1 year. Restorations were evaluated using Visual Analog Scale (VAS), restoration color shade match using Vita Easyshade V ®, and blinded assessor using FDI criteria for assessment of dental restorations measuring (aesthetic properties). Chi-square test was used to compare between restorations of both techniques. Results: There was no statistically significant difference between restorations of both techniques for patient satisfaction outcome, restorations color match outcome, and for all tested FDI outcomes except surface luster with 100% success. Conclusion: Both dual-shade layering and polychromatic natural layering techniques, exhibited acceptable clinical and esthetic performance. Keywords Composite; Polychromatic layering technique; Dual-shade layering technique; Clinical performance.
Highlights
Resin composite materials are widely used to restore teeth for their good mechanical and aesthetic properties as well as relatively low-cost price
The clinical success of resin composites is related to their ability to reproduce tooth appearance in terms of gloss [1], micro texture [2,3], and color [4]
The development of composite restoration materials has broadened their indication in the field of esthetic restorative procedures [5]
Summary
Resin composite materials are widely used to restore teeth for their good mechanical and aesthetic properties as well as relatively low-cost price. The clinical success of resin composites is related to their ability to reproduce tooth appearance in terms of gloss [1], micro texture [2,3], and color [4]. There is an increased attention to the color characteristics of the composites that are used for the reproduction of the structure of the teeth in conservative dentistry. The tooth reproduction operation consists of two phases: the individuation of the color [7] and the selection of composite resin materials that will reproduce the chosen color [8]. According to that, restoring an anterior tooth has always been a challenge, regarding the shade matching, the choice of colors, opacities, translucencies of the composites and the final anatomical outcome
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