In vitro comparisons of casting retention on implant abutments among commercially available and experimental castor oil-containing dental luting agents

Pinelli, Lígia Antunes Pereira; Fais, Laiza Maria Grassi; Ricci, Weber Adad; Reis, José Maurício dos Santos Nunes

doi:10.1016/s0022-3913(13)60308-x

Cited by 7 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The pull force was applied along the vertical axis of abutment-analog. 34 The maximum force required for removal of the coping was reported as maximum retention.…”

Section: Methodsmentioning

confidence: 99%

Effects of abutment diameter, luting agent type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments

et al. 2018

View full text Add to dashboard Cite

PURPOSEThe aim of this study was to evaluate the effects of abutment diameter, cement type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments.MATERIALS AND METHODSSixty abutments with two different diameters, the height of which was reduced to 3 mm, were vertically mounted in acrylic resin blocks with matching implant analogues. The specimens were divided into 2 diameter groups: 4.5 mm and 5.5 mm (n=30). For each abutment a CAD/CAM metal coping was manufactured, with an occlusal loop. Each group was sub-divided into 3 sub-groups (n=10). In each subgroup, a different cement type was used: resin-modified glass-ionomer, resin cement and zinc-oxide-eugenol. After incubation and thermocycling, the removal force was measured using a universal testing machine at a cross-head speed of 0.5 mm/min. In zinc-oxide-eugenol group, after removal of the coping, the cement remnants were completely cleaned and the copings were re-cemented with resin cement and re-tested. Two-way ANOVA, post hoc Tukey tests, and paired t-test were used to analyze data (α=.05).RESULTSThe highest pulling force was registered in the resin cement group (414.8 N), followed by the re-cementation group (380.5 N). Increasing the diameter improved the retention significantly (P=.006). The difference in retention between the cemented and recemented copings was not statistically significant (P=.40).CONCLUSIONResin cement provided retention almost twice as strong as that of the RMGI. Increasing the abutment diameter improved retention significantly. Re-cementation with resin cement did not exhibit any difference from the initial cementation with resin cement.

show abstract

“…The pull force was applied along the vertical axis of abutment-analog. 34 The maximum force required for removal of the coping was reported as maximum retention.…”

Section: Methodsmentioning

confidence: 99%

Effects of abutment diameter, luting agent type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The individual tray was fabricated from an impression through intraoral scanning; therefore, it was easy to use. Moreover, since the occlusal rim was constructed based of the average VD,3435 measurement of the VD was possible with minor adjustment. Additionally, the mandibular occlusal rim was constructed based only on the anterior part of the tray; hence, it was possible to obtain the CR position rapidly.…”

Section: Discussionmentioning

confidence: 99%

Comparison of different impression techniques for edentulous jaws using three-dimensional analysis

et al. 2019

View full text Add to dashboard Cite

PURPOSE The purpose of this study was to compare two novel impression methods and a conventional impression method for edentulous jaws using 3-dimensional (3D) analysis software. MATERIALS AND METHODS Five edentulous patients (four men and one woman; mean age: 62.7 years) were included. Three impression techniques were used: conventional impression method (CI; control), simple modified closed-mouth impression method with a novel tray (SI), and digital impression method using an intraoral scanner (DI). Subsequently, a gypsum model was made, scanned, and superimposed using 3D analysis software. Mean area displacement was measured using CI method to evaluate differences in the impression surfaces as compared to those values obtained using SI and DI methods. The values were confirmed at two to five areas to determine the differences. CI and SI were compared at all areas, while CI and DI were compared at the supporting areas. Kruskal-Wallis test was performed for all data. Statistical significance was considered at P value <.05. RESULTS In the comparison of the CI and SI methods, the greatest difference was observed in the mandibular vestibule without statistical significance ( P >.05); the difference was < 0.14 mm in the maxilla. The difference in the edentulous supporting areas between the CI and DI methods was not significant ( P >.05). CONCLUSION The CI, SI, and DI methods were effective in making impressions of the supporting areas in edentulous patients. The SI method showed clinically applicability.

show abstract

“…When compared with zinc phosphate cement, the COP, with the addition of calcium carbonate, presented better diametral tensile strength values and was associated with better film thickness 6 . The addition of calcium carbonate is responsible for conferring radiopacity to COP 29 . Moreover, this filler provides the release of calcium ions, facilitating ion exchange at the bone/resin matrix interface 15 , which may be beneficial in subgingival restoration margins.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, this filler provides the release of calcium ions, facilitating ion exchange at the bone/resin matrix interface 15 , which may be beneficial in subgingival restoration margins. The COP dental luting agents are deemed strong enough to resist masticatory stresses and provide retention similar to that of zinc phosphate cement, a permanent cementation material 29 .…”

Section: Introductionmentioning

confidence: 99%

A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength

2014

View full text Add to dashboard Cite

Favorable results in the use of castor oil polyurethane (COP) as pulp capping, membrane material, sealer, mouthwash and in bone repair, associated with the fact that Ricinus communis is not derived from petroleum and it is abundant in Brazil, encourage researches in the development of luting agents. Objectives This study compared the flexural strength (FS) of a castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate (COP10) with RelyX ARC (RX) after mechanical cycling (MC) and distilled water storage.Material and Methods Sixty-four specimens (25x2x2 mm) were fabricated and divided into two groups, COP10 and RX (control). Each group was divided into 4 subgroups (n=8) according to the storage time, 24 hours (24 h) or 60 days (60 d), and the performance (MC+FS) or not (only FS) of the mechanical cycling test. The FS (10 kN; 0.5 mm/min) and MC tests (10,000 cycles, 5 Hz, 0.5 mm/min) were carried out using an MTS-810 machine. The data were analyzed using ANOVA (α=0.05).Results The obtained FS (MPa) values were: COP10 24h- 19.04±2.41; COP10 60d- 17.92±3.54; RX 24h- 75.19±3.43; RX 60d- 88.77±6.89. All the RX specimens submitted to MC fractured, while the values for COP10 after MC were as follows: COP10 24h- 17.90±1.87 and COP10 60d- 18.60±1.60.Conclusions A castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate is resistant to mechanical cycling without decreases in flexural strength. However, mean COP10 showed only about 25% of the RelyX ARC mean flexural strength.

show abstract

In vitro comparisons of casting retention on implant abutments among commercially available and experimental castor oil-containing dental luting agents

Cited by 7 publications

References 29 publications

Effects of abutment diameter, luting agent type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments

Effects of abutment diameter, luting agent type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments

Comparison of different impression techniques for edentulous jaws using three-dimensional analysis

A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength

Contact Info

Product

Resources

About