| Autor: |
Dewan H; Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Sayed ME; Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Jundus A; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Gharawi M; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Baeshen S; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Alali M; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Almarzouki M; Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia., Jokhadar HF; Department of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia., AlResayes SS; Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 12372, Saudi Arabia., Al Wadei MHD; Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha 61413, Saudi Arabia., Thubab A; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Abu Illah MJ; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia., Moafa A; College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia. |
| Abstrakt: |
The aim of this study was to assess the shear bond strength of 3D-printed and milled provisional restorations using various resin materials and surface finishes. There were 160 preliminary samples in all, and they were split into two groups: the milled group and the 3D-printed group. Based on the resin used for repair (composite or polymethylmethacrylate (PMMA)) and the type of surface treatment utilized (chemical or mechanical), each group was further divided into subgroups. The specimens were subjected to thermocycling from 5 °C to 55 °C for up to 5000 thermal cycles with a dwell time of 30 s. The mechanical qualities of the repaired material underwent testing for shear bond strength (SBS). To identify the significant differences between the groups and subgroups, a statistical analysis was carried out. Three-way ANOVA was used to analyze the effects of each independent component (the material and the bonding condition), as well as the interaction between the independent factors on shear bond strength. Tukey multiple post-hoc tests were used to compare the mean results for each material under various bonding circumstances. The shear bond strengths of the various groups and subgroups differed significantly ( p < 0.05). When compared to the milled group, the 3D-printed group had a much greater mean shear bond strength. When compared to PMMA repair, the composite resin material showed a noticeably greater shear bond strength. In terms of surface treatments, the samples with mechanical and chemical surface treatments had stronger shear bonds than those that had not received any. The results of this study demonstrate the effect of the fabrication method, resin type, and surface treatment on the shear bond strength of restored provisional restorations. Particularly when made using composite material and given surface treatments, 3D-printed provisional restorations showed exceptional mechanical qualities. These results can help dentists choose the best fabrication methods, resin materials, and surface treatments through which to increase the durability and bond strength of temporary prosthesis. |
