The Effect of Fibers Insertion on Fracture Resistance of Maxillary Premolar Teeth with MOD Cavity Restored with Composite (In Vitro Study)
DOI:
https://doi.org/10.32828/mdj.v21i1.1174Keywords:
Fracture resistance, palfique lx5, ribbond, ever X posteriorAbstract
Aim of the study: The purpose of this in vitro investigation was to assess and contrast the impact of fibers on the fracture resistance of maxillary first premolar teeth with MOD cavities repaired using the subsequent methods (palfique lx5 reinforced Ribboned fiber composite everx posterior with short fiber reinforcement Tukoyama palfique lx5 composite).
Materials and methods: Sixty sound, non-carious human maxillary first premolars selected for this study, the samples were then split into four groups (n = 15) at random. Groups A, B, and C comprised of intact teeth utilized as the control group, teeth restored with ribbond, and teeth restored with composite (palfique lx5, Tokuyama, Japan), and Group D: Dental restorations using SFRC Ever X posterior (GC, Japan). The occlusal surface of each tooth was imprinted using flowable composite material (stamp technique), and the teeth were all mounted in a 2 cm2 square block of self-curing acrylic resin A large class II MOD cavity preparation was prepared to all groups except for group I.The dimensions of the cavities were standardized as follows: the occlusal depth was 3 mm, the occlusal width buccolingually was 2/3 of the intercuspal distance, The MO and DO boxes were prepared with 1.5 mm height at their axial walls. Teeth were tested in a universal testing apparatus with a 0.5 mm/min compressive load rate till fractures take place.
The analysis of variance (ANOVA) and Tukey (HSD) tests were employed in determining the statistical significance of the variation in fracture resistance across the groups under investigation, using a significance level of 0.05.
Results: Results revealed that tested groups restored with fibers (Group B, Group D) have more fracture resistance than other groups.
Conclusions: Under the preview of the present investigation, the teeth restored with Ribbond insertion show significant increase in fracture resistance than other tested groups.
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