A descriptive study of the radiographic density of implant restorative cements

Wadhwani, Chandur; Hess, Timothy; Faber, T.; Piñeyro, Alfonso; Chen, Curtis S K

doi:10.1016/s0022-3913(10)60062-5

Cited by 84 publications

(66 citation statements)

References 18 publications

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“…17,18 The yellowness and whiteness indices were calculated according to ASTM E313-10 standard. 19 Viewing conditions were set to D65/2 0 for calculation of indices. Data were statistically analyzed by two-way analysis of variance (ANOVA) as well as post hoc ANOVA test.…”

Section: Colorimetrymentioning

confidence: 99%

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

et al. 2017

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Introduction:The demand for esthetic dental treatments is increasing in recent years mainly due to improved oral hygiene and better maintenance of oral health and teeth in older individuals. Bleaching of discolored anterior teeth is the most popular among esthetic dental treatments. Even individuals with sound teeth and adequate esthetics seek to have whiter teeth in the anterior region. The aim of this study was to evaluate tooth color changes following conventional in-office bleaching techniques compared to light-activated methods using different light sources. Methods: Seventy sound anterior teeth (devoided of caries and/or fracture), extracted for periodontal and orthodontic reasons were selected and allocated to 7 groups: (A) control, (B) conventional bleaching (C) LED-activated bleaching, (D) KTP laser-activated bleaching, (E) diode laseractivated bleaching, (F) Nd:YAG laser-activated bleaching and (G) CO2 laser-activated bleaching. Colorimetric evaluation was carried out before and after treatment using a spectrophotoradiometer. Data were analyzed by one-and two-way analysis of variance (ANOVA) as well as multiple comparison methods. Results:The results showed that all bleaching procedures were effective in reducing the yellowness index. However, the KTP laser-activated bleaching was significantly more effective than the other techniques in 95% confidence level. It was also seen that CO2 laser activated method has outperformed groups E, F and G and the conventional bleaching without light activation was not effective at all and represented similar results with the control group. Furthermore, the groups E and G had almost the same results in decreasing the yellowness index. Conclusion:The results showed that all bleaching techniques were effective however, the KTP laser-activated bleaching was significantly more efficient, closely followed by the CO2 laseractivated bleaching technique.

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Section: Colorimetrymentioning

confidence: 99%

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

et al. 2017

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“…The filler particles of magnesium oxide, zinc oxide, fluoroaluminosilicate glass, strontium, barium, and zirconium give the radiopaque property to polycarboxylate, zinc phosphate, and glass ionomer cements. The atomic numbers of the elements of aluminum, silicon, calcium, zinc, strontium, zirconium, and barium are 13,14,20,30,38,40, and 56, respectively. The radiopacity of a material increases alongside an increase in the particle ratio of those materials which have an element content with a high atomic number.…”

Section: Dental Cementsmentioning

confidence: 99%

“…Post-cementation protocols do not presently include radiographic examination. Nevertheless, these cements are also used as implant restorative cements (40). If a provisional luting cement is to be used in the cementation of an implant abutment, the most radiopaque cement available should be used.…”

Section: Dental Cementsmentioning

confidence: 99%

Radiopacity of Dental Materials: An Overview

Pekkan¹

2016

Avicenna J Dent Res

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Context: This study aimed to provide an overview of the literature on the radiopacity of dental materials in order to emphasize its importance. Evidence Acquisition: English-language literature was investigated using manual and electronic searches for the terms "radiopacity," "dental material," "cement," "composite," "ceramic," "endodontic root canal sealer," "bone graft," and "acrylic resin" in the databases of Medline, google scholar, and Scopus up to April 2016. Seventy-nine selected publications, including review articles, original articles, and books, were evaluated. Results: The radiopacity of different dental materials may be lower or higher than that of the replaced tissue depending on the restorative material used. The research revealed that highly-radiopaque materials should not be used in dental restorations, except as bone graft and endodontic root canal filling materials. For most of the dental restorative materials, moderate radiopacity within the range of the replaced dental tissue is recommended. However, the lower radiopacity of polymer-based restorative or prosthetic dental materials is still a significant clinical problem. Conclusions:The author recommends using highly-radiopaque materials whenever possible for treatment of bone defects and root canals. For dental materials that replace clinical crowns, the radiopacity should be within the range of that of the replaced tooth structure (dentin or enamel). The radiopacity of dental cements should be much higher than that of the enamel in order to facilitate detection of the thin cement remnants.

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“…The use of radiopaque resin-based luting materials is therefore especially important in combination with radiolucent restorations such as ceramic laminate veneers, inlays, onlays and fiber posts or in restorations with subgingivally located margins 18,20,22) . Although, postcementation protocols do not presently include routine radiographic examination, inaccurate removal of cement excess may lead to periodontal problems 30) . Particularly when cement film thickness is less than 25-50 µm after cementation, it is favourable to use the highest radiopaque cement possible in order to be detected easily in the radiographs 21,33) .…”

Section: Discussionmentioning

confidence: 99%

“…Ideally, restorative materials should have radiopacity values equivalent to or greater than that of dentin [22][23][24][25] . Previous studies used different methods to evaluate the radiopacity of dental materials [26][27][28][29][30] . In fact, the International Organization for Standardization (ISO) has published radiopacity evaluation protocol and set guidelines for radiopacity of polymer-based filling, restorative and luting materials 31) .…”

Section: Introductionmentioning

confidence: 99%

Radiopacity of different resin-based and conventional luting cements compared to human and bovine teeth

Pekkan

Özcan

2012

Dent. Mater. J.

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This study evaluated the radiopacity of different resin-based luting materials and compared the results to human and bovine dental hard tissues. Disc specimens (N=130, n=10 per group) (diameter: 6 mm, thickness: 1 mm) were prepared from 10 resin-based and 3 conventional luting cements. Human canine dentin (n=10), bovine enamel (n=10), bovine dentin (n=10) and Aluminium (Al) step wedge were used as references. The optical density values of each material were measured from radiographic images using a transmission densitometer. Al step wedge thickness and optical density values were plotted and equivalent Al thickness values were determined for radiopacity measurements of each material. The radiopacity values of conventional cements and two resin luting materials (Rely X Unicem and Variolink II), were significantly higher than that of bovine enamel that could be preferred for restorations cemented on enamel. Since all examined resin-based luting materials showed radiopacity values equivalent to or greater than that of human and bovine dentin, they could be considered suitable for the restorations cemented on dentin.

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A descriptive study of the radiographic density of implant restorative cements

Cited by 84 publications

References 18 publications

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

Radiopacity of Dental Materials: An Overview

Radiopacity of different resin-based and conventional luting cements compared to human and bovine teeth

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