Fracture Resistance of Two Different Composite Resin CAD/CAM Crowns Bonded to Titanium Abutments

2020 ◽  
Vol 33 (6) ◽  
pp. 648-655
Author(s):  
Sandra Fernandez-Villar ◽  
Jordi Cano-Batalla ◽  
Josep Cabratosa-Termes ◽  
Oriol Canto-Naves ◽  
María Arregui
Keyword(s):  
Fracture Resistance ◽  
Composite Resin ◽  
Cad Cam

scholarly journals Effect of Differences in Axial Thickness and Type of Cement on Fracture Resistance in Composite Resin CAD/CAM Crowns

2019 ◽  
Vol 60 (1) ◽  
pp. 17-27 ◽  
Author(s):  
Tomotoshi Masuda ◽  
Syuntaro Nomoto ◽  
Toru Sato ◽  
Yuuhei Kanda ◽  
Takanori Sakai ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Composite Resin ◽  
Cad Cam

Fatigue and fracture resistance and survival of occlusal veneers of composite resin and ceramics blocks in posterior teeth with occlusal wear: A protocol for a systematic review

2021 ◽  
Author(s):  
KARELYS MALDONADO ◽  
◽  
JUAN ESPINOZA ◽  
DANIELA ASTUDILLO ◽  
WILSON BRAVO
Keyword(s):  
Systematic Review ◽  
Fracture Resistance ◽  
Composite Resin ◽  
Gastric Diseases ◽  
Dental Tissue ◽  
Posterior Teeth ◽  
Minimally Invasive Dentistry ◽  
Occlusal Wear ◽  
Fatigue And Fracture ◽  
Cad Cam

Review question / Objective: The aim of this systematic review is to synthesize the scientific evidence that evaluates fatigue and fracture resistance, survival, and stress distribution, of composite resin CAD/CAM and ceramic CAD/CAM occlusal veneers in posterior teeth with severe occlusal wear. Condition being studied: Currently there is an increase in cases of dental wear, due to several factors such as: excessive consumption of carbonated drinks, a diet high in acids, gastric diseases, anorexia, bulimia, dental grinding, use of highly abrasive toothpastes, or a combination of these(9) (10) (11) (12); which affect the patient in several aspects: loss of vertical dimension, sensitivity due to the exposure of dentin, esthetics, affectation of the neuromuscular system(11) (13) (14). With the advent of minimally invasive dentistry, occlusal veneers have been found to be a valid option to rehabilitate this type of cases and thus avoid greater wear of the dental structure with full coverage restorations. Sometimes when performing a tabletop it is not necessary to perform any preparation, thus preserving the maximum amount of dental tissue(3) (6) (15). Due to the masticatory load either in patients without parafunction where the maximum masticatory force is approximately 424 N for women and 630 N for men or in those who present parafunction where the maximum bite force can vary from 780 to 1120N(7), it is necessary that the occlusal veneers support that load which makes indispensable a compilation of studies investigating both fatigue and fracture resistance and the survival rate of occlusal veneers in different materials and thicknesses.

scholarly journals Fracture Resistance of Partial Indirect Restorations Made With CAD/CAM Technology. A Systematic Review and Meta-analysis

2019 ◽  
Vol 8 (11) ◽  
pp. 1932 ◽  
Author(s):  
Amesti-Garaizabal ◽  
Agustín-Panadero ◽  
Verdejo-Solá ◽  
Fons-Font ◽  
Fernández-Estevan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Computer Aided Design ◽  
Fracture Resistance ◽  
Composite Resin ◽  
Meta Analysis ◽  
Computer Aided ◽  
Cad Cam ◽  
Proximal Box Elevation ◽  
Hybrid Ceramic

Background: The aim of this systematic review and meta-analysis was to determine the fracture resistance and survival rate of partial indirect restorations inlays, onlays, and overlays fabricated using computer-aided design and computer-aided manufacturing (CAD-CAM) technology from ceramics, composite resin, resin nanoceramic, or hybrid ceramic and to analyze the influence of proximal box elevation on fracture resistance. Materials and methods: This systematic review was based on guidelines proposed by the preferred reporting items for systematic reviews and meta-analyses (PRISMA). An electronic search was conducted in databases US National Library of Medicine National Institutes of Health (PubMed), Scopus, Web of Science (WOS), and Embase. In vitro trials published during the last 10 years were included in the review. Results: Applying inclusion criteria based on the review’s population, intervention, comparison, outcome (PICO) question, 13 articles were selected. Meta-analysis by restoration type estimated the fracture resistance of inlays to be 1923.45 Newtons (N); of onlays 1644 N and of overlays 1383.6 N. Meta-analysis by restoration material obtained an estimated fracture resistance for ceramic of 1529.5 N, for composite resin of 1600 Ne, for resin nanoceramic 2478.7 N, and hybrid ceramic 2108 N. Conclusions: Resin nanoceramic inlays present significantly higher fracture resistance values. Proximal box elevation does not exert any influence on the fracture resistance of indirect restorations.

scholarly journals Comparison of Fracture Strengths of Three Provisional Prosthodontic CAD/CAM Materials: Laboratory Fatigue Tests

2021 ◽  
Vol 11 (20) ◽  
pp. 9589
Author(s):  
José Manuel Mendes ◽  
Pedro Colaço Botelho ◽  
Joana Mendes ◽  
Pedro Barreiros ◽  
Carlos Aroso ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Composite Resin ◽  
Intermediate Phase ◽  
Fatigue Tests ◽  
Oral Rehabilitation ◽  
South Tyrol ◽  
Polyether Ether Ketone ◽  
Cad Cam ◽  
Ether Ketone ◽  
Materials Used

Temporary restorations play a fundamental role in oral rehabilitation. They can be used on teeth or implants for a variable period of time during the period prior to rehabilitation with definitive restorations. Temporary or provisional restorations manufactured via CAD/CAM methods are becoming increasingly used in the intermediate phase of the treatment of complex cases. The main objective of this study was to compare the fracture resistance of three materials used in the creation of provisional crowns on implants: polymethyl methacrylate (PMMA), composite resin, and polyether ether ketone (PEEK). Fracture resistance in PMMA (Zirkonzahn Temp Basic® , Gais, South Tyrol, Italy) ranged from 1216.0 N to 1461.2 N, with a mean of 1300.4 N (SD = 97.09). In the composite material (3M Lava Ultimate®, Minnesota, USA), fracture resistance varied between 1343.5 N and 1490.6 N, with a mean of 1425.9 N (SD = 49.03). Lastly, in PEEK (Tecno Med Mineral®, Zirkonzahn®, Gais, South Tyrol, Italy), fracture resistance ranged from 2294.8 N to 2451.7 N, with a mean of 2359.5 (SD = 50.01). The crowns made with the PEEK Tecno Med Mineral® (Zirkonzahn®, Tyrol, Italy) material presented the best fracture resistance, followed by the crowns made with the Lava Ultimate® (3M® ESPE, Minnesota, USA) composite resin material and, finally, those made with the PMMA Temp Basic® (Zirkonzahn®, Tyrol, Italy) material.

Examining the effects of acid etching duration on the bond strength between two CAD/CAM materials and one composite resin

Odontology ◽  
2021 ◽  
Author(s):  
Patrícia Fernandes Jerzewski Sotero da Cunha ◽  
Julieta Gomes Tavares ◽  
Ana Maria Spohr ◽  
Mariá Cortina Bellan ◽  
Caroline Hoffmann Bueno ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Acid Etching ◽  
Cad Cam ◽  
Etching Duration

scholarly journals Fracture resistance of incisal tooth fragment reattached with different adhesive materials and retentive techniques

2018 ◽  
Vol 32 (4) ◽  
pp. 163
Author(s):  
Fábio Herrmann Coelho-de-Souza ◽  
Guilherme Fossá ◽  
Flávia Ávila Pereira ◽  
Celso Afonso Klein-Júnior ◽  
Maria Carolina Guilherme Erhardt ◽  
...  
Keyword(s):  
Bond Strength ◽  
Fracture Resistance ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Adhesive System ◽  
Group 4 ◽  
Group 3 ◽  
Group 5 ◽  
Adhesive Materials ◽  
Group 1

OBJECTIVE: This study evaluated in vitro the shear bond strength of experimentally fractured human tooth fragments reattached with different adhesive materials and retentive techniques.METHODS: Forty-eight sound mandibular incisors were randomly divided into 6 groups (n=8). Their incisal edges were cut off in 5 groups, representing an enamel-dentin fracture. Intact teeth were used as control (Group 1). The fragment edges were reattached with adhesive system (Scotch Bond Multipurpose – 3M ESPE) (Group 2), adhesive system and composite resin (ICE – SDI) (Group 3), adhesive system and composite resin with circumferential bevel (Group 4), adhesive system and composite resin with internal dentin groove (Group 5), and adhesive system and composite resin with the circumferential bevel and internal dentin groove (Group 6). Shear bond strength was determined in a universal testing machine. Fracture modes were identified by light microscope. Kruskal-Wallis was used to analysis resistance to fracture and fracture patterns.RESULTS: The results showed statistically significant differences (p<0.05) among groups. The intact teeth (Group 1) showed higher fracture resistance than the other groups. Groups 2 and 6 did not differ and were statistically superior to other techniques. Group 4 presented statistically higher than in Group 5, which in turn was more resistant than Group 3.CONCLUSIONS: None of the fragment reattachment techniques was able to achieve the strength of sound teeth. Fragments reattached only with adhesive system or with adhesive system and composite resin with the circumferential bevel and internal dentin groove showed the best performance for resistance to fracture.

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