Evaluation of bulk-fill systems: microtensile bond strength and non-destructive imaging of marginal adaptation

Fronza, Bruna Marin; Makishi, Patrícia; Sadr, Alireza; Shimada, Yasushi; Sumi, Yasunori; Tagami, Junji; Giannini, Marcelo

doi:10.1590/1807-3107bor-2018.vol32.0080

Cited by 13 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…35 In contrast, our findings showed that Bulk Fill did not present better microleakage; instead, it was similar to that of conventional resin. These findings corroborate those by Fronza et al, 34 who found no microleakage differences between conventional and bulk-fill resin. In addition, Scotti et al 35 also demonstrated that conventional composite resin and bulk-fill resin showed similar microleakage values at the enamel margins.…”

Section: Discussionsupporting

confidence: 92%

“…Bulk-fill resins present a lower modulus of elasticity and lower wettability than conventional resins; therefore, better microleakage is expected. 34 Microleakage is an important parameter of marginal adaptation, and directly influences the longevity of restorations; it can lead to the repair or replacement of the restoration, depending on how the restoration fails. 35 In contrast, our findings showed that Bulk Fill did not present better microleakage; instead, it was similar to that of conventional resin.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm

et al. 2019

View full text Add to dashboard Cite

The aim of the present study was to evaluate the microtensile bond strength and the microleakage of a bulk-fill composite resin compared with a conventional incremental composite resin, in permanent molars and under cariogenic challenge using a Streptococcus mutans model. Permanent human third molars (n = 60) with an occlusal cavity of 5x3x2 mm were randomly allocated into four subgroups of restorative treatments: conventional composite resin with (n = 15) and without (n = 15) cariogenic challenge (Z350-E and Z350-C experimental and control groups, respectively), and bulk-fill composite resin with (n = 15) and without (n = 15) cariogenic challenge (Bulk Fill-E and Bulk Fill-C, respectively). Ten specimens from each subgroup were submitted to microtensile strength, and 5, to microleakage. The cariogenic challenge was conducted using the Streptococcus mutans strain (ATCC) for 7 days. The stickers obtained (1 x 1 x 2 mm) were submitted to a microtensile strength test, followed by classification of the fracture mode. Microleakage was performed using a scoring system. The data were analyzed by Kruskal-Wallis and Mann-Whitney tests (p < 0.05). Filtek Z350 XT resin presented higher microtensile bond strength than Bulk Fill resin without (19.02 ± 4.90 and 8.76 ± 3.94MPa, respectively; p < 0.001) and with cariogenic challenge (22.69 ± 7.86 and 13.31 ± 3.38MPa, respectively; p < 0.02). Z350-C and Bulk Fill-C resins presented a higher prevalence of mixed fractures (23 and 14%, respectively) in the specimens submitted to cariogenic challenge than those of the control groups, whereas microleakage was similar (p = 0.85). The conventional composite resin had higher microtensile bond strength than the bulk-fill resin, but both resin types had similar adhesion quality and microfiltration scores.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Numerous resin composite materials were studied over the past years, including conventional and bulk-fill composites [16][17][18][19][20][21][22]. With regards to laboratory outcomes, the bulk-fill materials show better or similar performance than the conventional materials in terms of volumetric shrinkage, polymerization stress, cusps deflection and marginal quality [23].…”

Section: Introductionmentioning

confidence: 99%

One-Year Clinical Aging of Low Stress Bulk-Fill Flowable Composite in Class II Restorations: A Case Report and Literature Review

et al. 2021

View full text Add to dashboard Cite

Bulk-fill flowable composites provide functional and aesthetic restorations while eliminating incremental composite layering and saving time. The degradation of the adhesive interface with subsequent gap formation is a concern when adhesively luted restorations are placed. Moreover, the number of adhesive interface failures increases when they are exposed to long-term water storage. The aim of the present study was to evaluate the morphological characteristics of the tooth-composite interface in class II cavities restored with a low stress bulk-fill flowable composite after aging in an oral environment. We describe a case of a patient with class II cavities in four premolars restored with a low stress bulk-fill flowable composite Surefil SDR (Dentsply DeTrey GmbH, Konstanz, Germany). The occlusal part was restored with nano-hybrid resin composite Ceram X Mono (Dentsply DeTrey GmbH). After one year of clinical function, the teeth were extracted and examined in a scanning electron microscope (SEM). It can be concluded that the application of bulk-fill covered with conventional composite seems to provide the homogeneous and stable bond to tooth structure after one year of aging in an oral environment. However, some defects within the dentin-resin composite interface were observed.

show abstract

“…Regarding the effect of storage time on µTBS regardless of RC material, the µTBS bond strength values adversely affected by time. This could be explained by the biodegradation process of resin-based materials over time, where the daily rate of consumption of aqueous solutions drastically affects the µTBS of the resin-based materials [40], [41], [42].…”

Section: Discussionmentioning

confidence: 99%

Influence of Water Aging on Microtensile Bond Strength of a Flowable and a Packable Bulk-fill Resin Composites to Dentin

Selim¹,

Elezz

Safy

2020

Open Access Maced J Med Sci

View full text Add to dashboard Cite

AIM: Investigation of the aging effect on the microtensile bond strength (μTBS) of bulk-fill resin composite (RC) versus a conventionally incrementally applied one. MATERIALS AND METHODS: A total number of 45 sound human impacted third molars extracted molars have been selected to prepare specimens for the μTBS test. Teeth were randomly divided into three groups (C) according to type of RC material which used for restoring the teeth. Where nanohybrid RC (Grandio®SO) was used as the control Group (C1), packable bulk-fill RC (X-tra fil®) was used for restoring teeth in C2 group and flowable bulk-fill RC (X-tra base®) was used for restoring teeth in C3 group. Each group was further subdivided into 3 subgroups (n = 5) according to the water storage time, where in subgroup 1; teeth were stored for 24 h, subgroup 2; teeth were stored for 3 months while for subgroup 3; and teeth were stored for 6 months. After water storage, teeth were sectioned for preparation of μTBS testing beams. Maximum tensile stresses were recorded in megapascal (MPa). RESULTS: After 24 h of water storage, the X-tra base® showed a higher statistically significant μTBS to dentin (33.82 ± 9.84 MPa) than did the other two types of RCs. After 3 months, the X-tra fil® showed the lowest mean value of μTBS (10.90 ± 5.66 MPa), meanwhile, after 6 months of water storage Grandio®SO showed the highest mean value of μTBS (15.85 ± 6.76 MPa). Regardless of the time the X-tra fil® showed the lowest mean of μTBS (15.07 ± 11.73 MPa), while there is no significant difference between the X-tra base® and Grandio®SO. Furthermore, the water aging adversely affects μTBS values which deceased gradually by time. CONCLUSION: The packable bulk-fill RC characterized by lower μTBS to dentin in comparison to the flowable bulk fill and the incrementally applied nanohybrid RCs. Furthermore, the μTBS of the three tested materials decreased gradually by aging.

show abstract

Evaluation of bulk-fill systems: microtensile bond strength and non-destructive imaging of marginal adaptation

Cited by 13 publications

References 27 publications

Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm

Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm

One-Year Clinical Aging of Low Stress Bulk-Fill Flowable Composite in Class II Restorations: A Case Report and Literature Review

Influence of Water Aging on Microtensile Bond Strength of a Flowable and a Packable Bulk-fill Resin Composites to Dentin

Contact Info

Product

Resources

About