Clinical Evaluation of Flowable Monochromatic and Polychromatic Composite Resins in Posterior Restorations

Evaluation of the Color Matching Ability and Clinical Success of Flowable Monochromatic and Polychromatic Composite Resins in Posterior Restorations

This clinical study aims to investigate whether a single flowable composite resin system can achieve adequate color matching in posterior restorations and to compare it with a polychromatic composite system, which will serve as a control group. Clinical success will also be assessed using data obtained from the initial, six month, one-year, two-year, three-year, four-year, and five-year recall checks of the four different composite resin systems used in the study over a five-year period. L, a, and b parameters will be determined using the Vita Easyshade Compact (VITA Zahnfabrik, Bad Sackingen, Germany) Spectrophotometer device used in the study at the initial, half-year, one-year, two-year, three-year, four-year, and five-year intervals. Based on the obtained data, intraoral color changes will be determined using the CIEDE2000 color system. Each patient will be scanned with an intraoral scanner at each session. The hypothesis tested was that color matching and long-term clinical follow-up would be successful for all composite materials used in the study.

Inclusion Criteria:

• Participants must be over 18 years of age and have no systemic disease.
• Participants must have acceptable oral hygiene and at least 20 teeth in occlusion.
• Participants must have at least four Class I-II carious lesions requiring treatment.
• Lesions must involve both enamel and dentin, and the involved teeth must be vital and non-mobile.
• All participants must read and sign an informed consent form prior to enrollment.

Exclusion Criteria:

• Presence of any general health problem (systemic disease).
• Periodontal disease or poor oral hygiene.
• Tooth mobility or non-vital teeth in the target teeth.
• Bruxism or uncontrolled parafunction