The influence of surface roughness on the retentive ability of two dental luting cements

Oilo, G; Jørgensen, Kenneth Mølbjerg

doi:10.1111/j.1365-2842.1978.tb01257.x

Cited by 87 publications

(51 citation statements)

References 12 publications

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“…All of the posts had surfaces with 2·1° angle of divergence. The post surfaces were sandblasted and the mean value of surface roughness R a (Øilo & Jørgensen, 1978) amounted to approximately 12·9 μm. This value was determined by the manufacturer with a surface profile measuring instrument (Model S8P Perthometer†).…”

Section: Methodsmentioning

confidence: 99%

Effect of length and diameter of tapered posts on the retention

Nergiz

Schmage

Özcan

et al. 2002

J of Oral Rehabilitation

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The force transmission of tapered unthreaded posts along the root has been reported to be homogenous but their retentive strength was found to be lower compared with those of parallel unthreaded or other kinds of threaded posts. The purpose of this in vitro study was to investigate the effect of length and diameter on the retentive strength of sandblasted tapered prefabricated titanium posts (Erlangen post system). Posts with constant taper angle but with three different lengths (9, 12, 15 mm) and apical diameters (0.5, 0.9, 1.1 mm) were cemented using zinc phosphate cement into the prepared and roughened post spaces of 90 intact anterior teeth. The post retention concerning length and diameter, being independent from each other, was measured by a tensile force test. The retentive strength was found to be proportional to the length as well as to the diameter of the posts. The mean minimum strength (181 +/- 14 N) recorded for the thinnest and shortest post was significantly lower than that of mean maximum strength (612 +/- 85 N) obtained from those of the thickest and longest post. Proportional bond strengths of the posts comprising their surface areas ranged between 6.8 and 7.9 N mm(-2) which were not significantly different between any group. The retention was effected strongly with the increase in the length (approximately 100%) than with the increase in the diameter (approximately 60%). Concerning the posts tested in this study, it is concluded that some caution should be exercised in the choice of post with appropriate length rather than diameter for the tooth concerned.

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Section: Methodsmentioning

confidence: 99%

Effect of length and diameter of tapered posts on the retention

Nergiz

Schmage

Özcan

et al. 2002

J of Oral Rehabilitation

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“…For many years, retention of indirect restorations could be attained only by the use of favorable tooth preparations and by mechanical interlocking of the luting agent in irregularities present on the surface of the restoration and the tooth, respectively. 1,2 The luting agent of choice was zinc phosphate cement, which has shown a successful clinical record. [3][4][5][6] In 1976, glass ionomer cements were marketed for use as luting agents.…”

Section: Introductionmentioning

confidence: 99%

Bonding of Restorative Materials to Dentin With Various Luting Agents

Peutzfeldt¹,

Sahafi²,

Flury³

2011

Operative Dentistry

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Clinical RelevanceLuting agents have significant effects when used to bond indirect restorative materials to dentin. In the present study, resin cements performed better than water-based cements, especially self-etch and one of two self-adhesive resin cements. SUMMARYThe aim was to compare eight types of luting agents when used to bond six indirect, laboratory restorative materials to dentin. cements]). After water storage at 378C for one week, the shear bond strength of the specimens (n¼8/group) was measured, and the fracture mode was stereomicroscopically examined. Bond strength data were analyzed with two-factorial analysis of variance (ANOVA) followed by Newman-Keuls' Multiple Range Test (a¼0.05). Both the restorative material and the luting agent had a significant effect on bond strength, and significant interaction was noted between the two variables. Zinc phosphate cement and glass ionomer cements produced the lowest bond strengths, whereas the highest bond strengths were found with the two self-etch and one of the self-adhesive resin cements. Generally, the fracture mode varied markedly with the restorative material. The luting agents had a bigger influence on bond strength between restorative materials and dentin than was seen with the restorative material.

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“…Choice of luting agents in different clinical situations Children teeth with large pulp chambers Zinc polycarboxylate [19] Zinc phosphate, Glass-ionomer Teeth prepared to receive partial veneer crown or retainer Adhesive resin, RMGI (less solubility and microleakage)Glass-ionomer (being translucent makes enamel adjacent to metal castings appear slightly gray)[50], Zinc phosphate[7] Source: Refs [19,15,37,50,7]. …”

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confidence: 99%

Conventional and Contemporary Luting Cements: An Overview

Ladha¹,

Verma

2010

J Indian Prosthodont Soc

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Long-term clinical success of fixed prosthodontic restorations is influenced by many factors, one important factor being the selection of an appropriate luting agent. No single luting agent is capable of meeting all the stringent requirements, which is one reason why there is such a wide choice of luting agents currently available from conventional water-based to contemporary adhesive resin cements. Introduction of adhesive resin systems has completely changed the face of fixed prosthodontic practice leading to an increased use of bonded all-ceramic crowns and resin-retained fixed partial dentures. This article makes an effort to review various conventional and contemporary luting agents, their properties & associated clinical implications thereby trying to help the clinician select an appropriate luting agent for a given clinical situation.

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The influence of surface roughness on the retentive ability of two dental luting cements

Cited by 87 publications

References 12 publications

Effect of length and diameter of tapered posts on the retention

Effect of length and diameter of tapered posts on the retention

Bonding of Restorative Materials to Dentin With Various Luting Agents

Conventional and Contemporary Luting Cements: An Overview

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