Fracture resistance of endodontically treated teeth restored with a bulkfill flowable material and a resin composite

Isufi, Almira

doi:10.11138/ads/2016.7.1.004

Cited by 18 publications

(23 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The catastrophic and unfavorable fracture behavior observed for flowable bulk‐fill composite is in line with previous studies investigating the mechanical behavior of bulk‐fill composites and conventional particulate filler composite . Their fundamentally similar material properties thus do not offer significant improvement of fracture propagation, such as partial bulk fractures acquired with fiber‐reinforced composite groups .…”

Section: Discussionsupporting

confidence: 86%

Effect of interface surface design on the fracture behavior of bilayered composites

Omran

Garoushi

Lassila

et al. 2019

European J Oral Sciences

View full text Add to dashboard Cite

This study aimed to evaluate the effect of different interface designs on the load‐bearing capacity of bilayered composite structures (BLS). Cylindrical specimens of BLS were prepared from base composite of 3.5 mm thickness and surface composite of 1.5 mm thickness (n = 80). Two different base composites – flowable bulk‐fill (FBF) [smart dentin replacement (SDR)] and short fiber‐reinforced (FRC) (everX Posterior) – were evaluated, and conventional composite (G‐ænial Posterior) was used as the surface layer. Four different interface designs were used: (i) pyramidal; (ii) mesh; (iii) linear grooves; and (iv) flat surface (control). Three‐dimensional printed molds were fabricated to standardize the interface design between the surface and the base composites. The specimens were then statically loaded with a steel ball until fracture using a universal testing machine. Fracture types were classified into catastrophic, complete, and partial bulk. ANOVA revealed that both the material and the interface design had a statistically significant effect on the load‐bearing capacity. Flowable bulk‐fill showed lower mean load‐bearing capacity than FRC in all the interface designs tested, except for the flat surface design. Fracture analysis showed that FRC demonstrated up to 100% partial bulk fractures with the pyramid interface design, but no incidence of catastrophic bulk fracture. By contrast, FBF demonstrated up to 84.6% and 40% catastrophic bulk fractures with the flat interface design but no incidence of partial bulk fracture. Consequently, the interface designs studied enhanced the fracture behavior of BLS.

show abstract

Section: Discussionsupporting

confidence: 86%

Effect of interface surface design on the fracture behavior of bilayered composites

Omran

Garoushi

Lassila

et al. 2019

European J Oral Sciences

View full text Add to dashboard Cite

show abstract

“…Specimen's roots were covered with 1 mm layer of wax positioned at 2 mm under the cement-enamel junction, thus simulating the periodontal ligament. [ 14 ] To replace the alveolar bone, teeth were placed into a squared mold of 8 cm of volume and a depth of 15 mm filled with acryl resin, with a light apical pressure completely covering the wax.…”

Section: Aterials and M Ethodsmentioning

confidence: 99%

Impact of minimal root canal taper on the fracture resistance of endodontically treated bicuspids

Zogheib

Sfeir

Plotino³

et al. 2018

J Int Soc Prevent Communit Dent

View full text Add to dashboard Cite

Objective:Minimal invasive endodontics preserve coronal and radicular tooth structure to increase the fracture resistance of teeth. The aim of this study was to assess the influence of final preparation taper on the fracture resistance of maxillary premolars.Materials and Methods:Sixty maxillary premolars were selected and divided into 2 groups: 30 were shaped with a final apical diameter 30 and a 4% taper and 30 with 6% taper using iRaCe® instrument (FKG dentaire, Switzerland). All root canals were irrigated with sodium hypochlorite and final rinse with ethylenediaminetetraacetic acid. All canals were filled with gutta-percha single-cone filling technique and AHPlus® sealer (Dentsply- Maillefer, Baillagues, Switzerland) and access cavity restored with resin composite. Roots were wax coated, placed in an acrylic mold and loaded to compressive strength fracture in a mechanical material testing machine recording the maximum load at fracture and fracture pattern (favorable/restorable or unfavorable/unrestorable). Fracture loads were compared statistically, and data examined with Student t-test with a level of significance set at P ≤ 0.05.Results:No statistically significant difference was registered between the 4% taper of preparation (270.47 ± 90.9 N) and 6% taper of preparation (244.73 ± 120.3 N) regarding the fracture resistance of the endodontically treated premolars tested (P = 0.541), while more favorable restorable fractures were registered in the 4% taper group.Conclusions:Continuous 4% preparation taper did not enhance the fracture resistance of endodontically treated maxillary premolars when compared to a 6% taper root canal preparation. More fractures were registered in the 4% taper group.

show abstract

“…The preparation of cavity access in posterior teeth having a MOD cavity without marginal support or with significant structural loss may cause loss of resistance. 12 The recently developed bulk-fill composites can replace the layering technique due to the application of a single mass of 4 mm thickness. 13 In our study, when compared to the positive control group, cavity preparation in the negative control group significantly reduced the fracture strength of the dental specimens (p<0.05).…”

Section: Discussionmentioning

confidence: 99%

The Effect of Two Bulk-Fill Resin Composites on Fracture Resistance of Endodontically Treated Teeth

Üstün

Güçlüer

2019

Cumhuriyet Dental Journal

View full text Add to dashboard Cite

Objectives:The aim of this study was to compare the effect of two commercially available bulk-fill restorative materials on the fracture resistance of endodontically treated human molar teeth. Materials and methods:A total of 44 mandibular third molar were divided into four groups: Group 1; 4 mm thick bulk-fill fluid composite (SDR ™, Dentsply, Konstanz, Germany) was applied to the cavities. The restoration of the proximal walls and the occlusal region was completed with posterior composite (Valux Plus, 3M ESPE, St.Paul, MN, USA). Group 2; 4 mm thick fiber-resin reinforced bulk-fill composite (EverX Posterior; GC Corp., Japan) was placed in the cavities and the procedure in Group 1 was repeated. Group 3 (negative control group); no restoration was applied to the cavities. Group 4 (positive control group); comprised intact molar teeth without any treatment. The root canals were shaped using rotary instruments, irrigated with NaOCl, and obturated. All samples were incubated in distilled water at 37˚C for 1 week and then fracture strength test was performed. The values were recorded in Newton and the data were evaluated using Kruskal Wallis and Mann-Whitney U test.Results: No statistically significant difference (p >0.05 ) was observed between group 1, 2, and the positive control group. However, the bulk-fill fluid composite material showed higher fracture resistance than the fiber-resin reinforced composite material (p<0.05). The highest fracture resistance was observed in the positive control group.The fracture resistance of the negative control group was statistically lower than the other groups (p<0.05). Conclusions:Both of the bulk-fill restorative materials in endodontically treated teeth showed similar fracture resistance to intact teeth. In addition, the clinical use of the bulk-fill fluid composites may be recommended because of their high fracture resistance and ease of application.

show abstract

Fracture resistance of endodontically treated teeth restored with a bulkfill flowable material and a resin composite

Cited by 18 publications

References 36 publications

Effect of interface surface design on the fracture behavior of bilayered composites

Effect of interface surface design on the fracture behavior of bilayered composites

Impact of minimal root canal taper on the fracture resistance of endodontically treated bicuspids

The Effect of Two Bulk-Fill Resin Composites on Fracture Resistance of Endodontically Treated Teeth

Contact Info

Product

Resources

About