Clinical Comparison of Two Resin Composites on Diastema Closure and Reshaping at Four Years

The surfaces were etched using 35% phosphoric acid for 30 s. The etched surfaces were rinsed and dried. Nano-hybrid resin composite system was used Charisma-Diamond in combination Gluma2 Bond etch\&rinse adhesive. The composite increments were carefully placed between the matrix strip and tooth by using a hand instrument. The composite resin restorations were light-cured (600 mW/cm²). Occlusion was checked with thin articulating papers. Restoration surfaces were finished and polished with fine finishing diamond burs, stones and rubber cups whereas; proximal and labial surfaces were contoured and polished with finishing strips. The treatments were completed by instructing the patients about the oral hygiene measures for cleaning their restorations with toothbrush and dental floss.

The surfaces were etched using 35% phosphoric acid for 30 s. The etched surfaces were rinsed and dried. Nano-hybrid resin composite system was used Filtek-Z550 in combination with Adper™ Single Bond 2 etch\&rinse adhesive. The composite increments were carefully placed between the matrix strip and tooth by using a hand instrument. The composite resin restorations were light-cured (600 mW/cm²). Occlusion was checked with thin articulating papers. Restoration surfaces were finished and polished with fine finishing diamond burs, stones and rubber cups whereas; proximal and labial surfaces were contoured and polished with finishing strips. The treatments were completed by instructing the patients about the oral hygiene measures for cleaning their restorations with toothbrush and dental floss.