This study aims to evaluate the effectiveness of various finishing and polishing techniques for composite resins used in dental restorations, with a focus on minimizing discoloration and surface roughness over time. Discoloration due to plaque accumulation and surface staining can lead to esthetic concerns, resulting in premature restoration replacement and increased costs. Prior research highlights that esthetic failures, such as color alterations and surface staining, are key reasons for the failure of anterior restorations. Given the contradictory findings in previous studies on finishing and polishing methods, this research seeks to determine whether one-step polishing system will have the same effect as the multistep system in terms of esthetic performance and surface roughness of nanohybrid resin composite class IV restorations. The main operator will compare between OneGloss (Shofu) the intervention and Super-Snap X-treme (Shofu) the comparator. Patients will be evaluated immediately following polishing then after 3 months, 6 months, and 12 months.
Patients with good general health.
Patients who agreed to the consent and committed to follow-up period
No specific age range.
Both genders.
Patient related criteria
Patient with bad oral hygiene.
Patients with tetracycline or fluorosis staining.
Patients who could/would not participate in all times of follow-up.
Parallel
One-step polishing system with nanohybrid resin composite restorations.
Procedure/Surgeryone-step polishing system using OneGloss by Shofu
Multistep system polishing system Super-Snap X-treme (Shofu) with nanohybrid resin composite restorations.
Procedure/SurgeryA multi-step polishing system
Surface Luster (success rate)
Scoring system (ordinal) 5: Luster comparable to enamel 4: Slightly dull, not noticeable from speaking distance, some isolated pores 3: Dull surface but acceptable if covered with film of saliva, multiple pores on more that one-third of the surface 2: Rough surface, cannot be masked by saliva film, simple polishing not sufficient 1: Very rough, unacceptable plaque-retentive surface
Surface Staining
Scoring system (ordinal) 5: No staining 4: Minor Staining, easily removable by polishing 3: Moderate surface staining that may also be present on other teeth, not esthetically unacceptable 2: Unacceptable surface staining, major intervention necessary 1: severe surface and/or subsurface staining, not acceptable for intervention
Marginal Staining
Scoring system (ordinal) 5 No staining 4 Minor staining, easily removable by polishing 3 Moderate marginal staining, not esthetically unacceptable 2 Pronounced marginal staining; major intervention necessary 1 Deep marginal staining, not accessible for intervention
Color Match
Scoring system (ordinal) 1. Good color match, no difference in shade and translucency 2. Minor Deviation 3. Clear deviation but acceptable. Does not affect esthetic 3.1: More opaque 3.2: More translucent 3.3: Darker 3.4: Brighter
Surface Roughness
Surface roughness means (Ra)
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