Year: 2025
Type: article
Abstract: This study investigated the influence of the fiber sleeve on push-out bond strength (PBS), both with and without aging in a mastication simulator. Sixty straight-rooted mandibular premolars were randomly divided into four groups ( n = 15). Groups S and S MS included fiber sleeves and posts, while Groups P and P MS included posts only. Groups S MS and P MS underwent aging in a mastication simulator (50 N load, 240,000 cycles). Specimens were sectioned into 1 mm slices (coronal, middle, apical thirds), and PBS testing was performed using a universal testing machine. Failure modes were analyzed under 40× magnification. Statistical analysis used one-way ANOVA and Tukey tests ( α = 0.05). Group S had the highest PBS, significantly surpassing Group P ( P < 0.001). Aging significantly reduced PBS in sleeve groups (S vs. S MS, P = 0.029) Adhesive failure between dentin and cement was most common. The use of fiber sleeves significantly improved PBS; however, this enhancement diminished following aging procedures.
Source: BMC Oral Health
Authors: Eren Var, Cihan Küden, Oguz Yoldas
Institution: Cukurova University
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $3,190
Funder: Çukurova Üniversitesi
OpenAlex ID: W4415383227