Radiopacity of restorations and detection of secondary caries

Espelid, Ivar; Tveit, Anne Bjørg; Erickson, Robert L.; Keck, S.C.; Glasspoole, Eileen A.

doi:10.1016/0109-5641(91)90056-5

Cited by 116 publications

(121 citation statements)

References 13 publications

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“…7,14,27 In addition, our study did not observe a good performance of this method at the dentine threshold, which does not corroborate the findings of other studies in which radiography presented acceptable values of sensitivity and specificity in the detection of advanced secondary caries. 7,11 This divergence can be attributed to the presence of secondary lesions in the wall of the cavity, the presence of restorative material in the buccal or lingual surface or the occurrence of a shadow effect of the restorative material, 28 which could make the detection of a demineralization related to secondary caries in a bitewing radiograph difficult.…”

Section: Discussionmentioning

confidence: 99%

Validity and reliability of methods for the detection of secondary caries around amalgam restorations in primary teeth

et al. 2010

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Secondary caries has been reported as the main reason for restoration replacement. The aim of this in vitro study was to evaluate the performance of different methods -visual inspection, laser fluorescence (DIAGNOdent), radiography and tactile examination -for secondary caries detection in primary molars restored with amalgam. Fifty-four primary molars were photographed and 73 suspect sites adjacent to amalgam restorations were selected. Two examiners evaluated independently these sites using all methods. Agreement between examiners was assessed by the Kappa test. To validate the methods, a caries-detector dye was used after restoration removal. The best cut-off points for the sample were found by a Receiver Operator Characteristic (ROC) analysis, and the area under the ROC curve (Az), and the sensitivity, specificity and accuracy of the methods were calculated for enamel (D2) and dentine (D3) thresholds. These parameters were found for each method and then compared by the McNemar test. The tactile examination and visual inspection presented the highest inter-examiner agreement for the D2 and D3 thresholds, respectively. The visual inspection also showed better performance than the other methods for both thresholds (Az = 0.861 and Az = 0.841, respectively). In conclusion, the visual inspection presented the best performance for detecting enamel and dentin secondary caries in primary teeth restored with amalgam.

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Section: Discussionmentioning

confidence: 99%

Validity and reliability of methods for the detection of secondary caries around amalgam restorations in primary teeth

et al. 2010

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“…Therefore, they are more translucent and less radiopaque than the posterior ones (49). In fact, moderate radiopaque materials are preferable to those with a high degree of radiopacity, since the latter can obscure caries adjacent to the restorations (13,19,50). A new monomodal submicron radiopaque dental glass (Schott AG, Landshut, Germany) is a promising filler for composite materials which provides radiopacity without decreasing the translucency of the material.…”

Section: Composite Resinsmentioning

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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“…Goshima and Goshima (3) reported that luting material should have a minimal radiopacity at least equal to the same thickness of aluminum, to help in accurate radiologic discrimination. Application of semi-radiopaque restorations with radiopacity slightly exceeding that of enamel has also been recommended (1). El-Mowafy and Benmergui (4) concluded that materials having radiopacity values greater than or equivalent to the radiopacity of enamel are suitable for use as inlay cements.…”

Section: Introductionmentioning

confidence: 99%

“…Radiopacity is one of the prerequisites for luting materials especially when they are applied for seating ceramic restorations and indirect composite restoratives. The advantages of radiopaque over radiolucent materials are easy detection of recurrent dental caries as well as observation of the radiographic interface between the materials and tooth substrates (1).…”

Section: Introductionmentioning

confidence: 99%

Radiopacity of conventional, resin-modified glass ionomer, and resin-based luting materials

Tsuge

2009

J Oral Sci

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Abstract:The purpose of the present study was to evaluate the radiopacity of currently available dental luting materials. Five conventional cements, six resinmodified glass ionomers (RMGIs), two methyl methacrylate (MMA)-based acrylic resins (eight shades), and nine composite luting materials were evaluated. Radiographs of the specimens were taken together with tooth slices and aluminum step wedges. The density of the specimens was determined with a densitometer and was expressed in terms of the equivalent thickness of aluminum per 2.0-mm unit thickness of specimen. The radiopacity values for human enamel and dentin were 4.3 and 2.3 mm Al/2.0 mm specimen, respectively. The values for materials ranged from 5.1 to 12.9 for conventional luting materials, from 3.4 to 6.3 for RMGIs, from less than 0.5 to 7.3 for MMA resins, and from 2.3 to 9.9 for the composite luting materials. A zinc phosphate cement showed the highest value (12.9), whereas five shades of MMA resin resulted in the lowest value (less than 0.5). Two RMGIs and three composite luting materials exhibited radiopacity values between those of enamel (4.3) and dentin (2.3). It can be concluded that the radiopacity value of luting materials varies considerably, and that care must be taken when selecting luting materials, considering the material composition of restorations. (J Oral Sci 51, 223-230, 2009)

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Radiopacity of restorations and detection of secondary caries

Cited by 116 publications

References 13 publications

Validity and reliability of methods for the detection of secondary caries around amalgam restorations in primary teeth

Validity and reliability of methods for the detection of secondary caries around amalgam restorations in primary teeth

Radiopacity of Dental Materials: An Overview

Radiopacity of conventional, resin-modified glass ionomer, and resin-based luting materials

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