Clinical survival and performance of premolars restored with direct or indirect cusp-replacing resin composite restorations with a mean follow-up of 14 years

Hofsteenge, JW; Fennis, W.M.M.; Kuijs, R.H.; Özcan, Mutlu; Cune, Marco S.; Gresnigt, Marco; Kreulen, C.M.

doi:10.1016/j.dental.2023.03.004

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…Regrettably, there is a lack of studies in the literature that directly compare the survival rates of direct and indirect composite restorations. In a recent retrospective long-term follow-up study, the authors found no statistically significant difference in survival rates between direct and indirect composite cusp-replacing restorations [ 9 ]. Therefore, both direct and indirect resin composite restorations are considered suitable treatment options.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of fracture behavior in short fiber–reinforced direct and indirect overlay restorations

Garoushi,

Akbaşak-Sungur,

Erkut

et al. 2023

Clin Oral Invest

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Objectives The aim was to assess how incorporating a short-fiber composite (SFC) core would affect the fracture behavior of direct and indirect overlays. Furthermore, to examine the relationship between the thickness ratio of SFC core to particulate-filled composite (PFC) veneering and the fracture-behavior of bilayered-structured restorations. Materials and methods A total of 120 molars were used to create MOD cavities, with palatal cusps removed. Four different groups of direct overlays were then made (n = 15/group), all of which featured a SFC core (everX Flow) with varying thicknesses (0, 1, 4, and 5 mm), as well as a surface layer of PFC (G-aenial Posterior), with the overall thickness of the bilayered-structured restoration set at 5 mm. Additionally, four groups of CAD/CAM restorations were created (Cerasmart 270 and Initial LiSi Block), with or without 2 mm of SFC core reinforcement. Following the fabrication of these restorations, cyclic fatigue aging was carried out for a total of 500,000 cycles, with an applied maximum load (Fmax) of 150 N. Subsequently, each restoration underwent quasi-static loading until fracture. The fracture mode was subsequently evaluated using optical microscopy and SEM. Results There were no statistically significant differences (p > 0.05) observed in the fracture resistance of indirect overlays reinforced with a 2-mm SFC core compared to those made solely from restorative materials. Direct overlays constructed using plain SFC or with a 4-mm layer thickness of SFC core exhibited significantly higher fracture resistance values (2674 ± 465 and 2537 ± 561 N) (p < 0.05) when compared to all other groups tested, according to the statistical analysis ANOVA. Conclusions The most effective method for restoring large MOD cavities was found to be direct restoration using SFC either alone or as a bulk core in combination with PFC composite. Clinical relevance The use of SFC as bulk reinforcing base will significantly improve the loading performance of directly layered restorations.

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Section: Introductionmentioning

confidence: 99%

“…Therefore, both direct and indirect resin composite restorations are considered suitable treatment options. However, considering the longer treatment time and higher costs associated with indirect restorations, the direct technique is favored [ 9 ].…”

Section: Introductionmentioning

confidence: 99%