Effect of Spherical Silica Filler Addition on Immediate Interfacial Gap-formation in Class V Cavity and Mechanical Properties of Resin-modified Glass-ionomer Cement

This study was designed to evaluate microleakage that appeared on Resin-Modified Glass-Ionomer Cement (RMGIC) restorations. Sixty class V cavities () were cut on thirty extracted third molars, which were randomly allocated to three experimental groups. All the buccal cavities were pretreated with polyacrylic acid, whereas the lingual cavities were treated with three one-step Self-Etch adhesives, respectively, Xeno III (Dentsply Detrey GmbH, Konstanz, Germany), iBond exp (Heraeus Kulzer gmbH & Co. KG, Hanau, Germany), and Adper Prompt-L-Pop (3M ESPE AG, Dental products Seefeld, Germany). All cavities were completely filled with RMGIC, teeth were thermocycled for 800 cycles, and leakage was evaluated. Results were expressed as means standard deviations (SDs). Microleakage scores were analysed by means of generalized linear mixed models (GLMMs) assuming an ordinal logistic link function. All results were considered to be significant at the 5% critical level (). The results showed that bonding RMGIC to dentin with a Self-Etch adhesive rather than using polyacrylic acid did not influence microleakage scores (), except for one tested Self-Etch adhesive, namely, Xeno III (). Nevertheless, our results did not show any significant difference between the three tested Self-Etch adhesive systems. In conclusion, the pretreatment of dentin with Self-Etch adhesive system, before RMGIC filling, seems to be an alternative to the conventional Dentin Conditioner for the clinicians as suggested by our results (thermocycling) and others (microtensile tests).

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Protective Effect of Resin Coating on the Microleakage of Class V Restorations Following Treatment with Carbamide Peroxide In Vitro

Operative Dentistry ◽

10.2341/10-039-lr ◽

2010 ◽

Vol 35 (6) ◽

pp. 634-640 ◽

Cited By ~ 7

Author(s):

H. Yu ◽

Q. Li ◽

T. Attin ◽

Y. Wang

Keyword(s):

Protective Effect ◽

Clinical Relevance ◽

Glass Ionomer Cement ◽

Glass Ionomer ◽

Carbamide Peroxide ◽

Class V ◽

Resin Coating ◽

Resin Modified Glass Ionomer ◽

Ionomer Cement

Clinical Relevance Carbamide peroxide treatment increased the microleakage of Class V conventional glass-ionomer cement and resin modified glass-ionomer cement restorations. The resin coating is an effective method to avoid bleaching-induced microleakage without affecting the bleaching outcome.

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Comparative Evaluation of Microleakage Between Nano-Ionomer, Giomer and Resin Modified Glass Ionomer Cement in Class V Cavities- CLSM Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2016/18730.7798 ◽

2016 ◽

Cited By ~ 3

Author(s):

Indira Priyadarshini Bollu

Keyword(s):

Comparative Evaluation ◽

Glass Ionomer Cement ◽

Glass Ionomer ◽

Class V ◽

Resin Modified Glass Ionomer ◽

Ionomer Cement

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Evaluation of Chitosan Modified Glass Ionomer Cement for Microleakage under Spectrophotometer - An In-Vitro Study

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/565 ◽

2021 ◽

Vol 10 (33) ◽

pp. 2769-2772

Author(s):

Arjun Sajjeev ◽

Ashwini Tumkur Shivkumar ◽

Sowmya Halasabalu Kalgeri

Keyword(s):

Social Sciences ◽

Mechanical Properties ◽

Glass Ionomer Cement ◽

In Vitro Study ◽

Restorative Material ◽

Glass Ionomer ◽

Evaluation Tool ◽

Class V ◽

Ionomer Cement

BACKGROUND Marginal integrity of glass ionomer as a restorative material is an important factor for the longevity of the restoration. Class V and cervical abrasions are the most critical and challenging lesions for restorations. The choice of material for restoring class V and cervical abrasions is glass ionomer cement (GIC). Sensitivity to moisture contact during the early setting stages is the drawback of GIC. To overcome the drawback, modifications of glass ionomer cement were made by the addition of chitosan. Chitosan (CH) is a natural linear polysaccharide obtained partially and fully by deacetylated chitin compounds, which are found in crab and shrimp shells, with properties like nontoxicity, biodegradability, bioadhesive, biocompatibility, and biorenewabilty which has led to its use in various fields. Thus, this study intended to evaluate the microleakage of conventional glass ionomer cement and chitosan modified glass ionomer cement using a spectrophotometer. METHODS 60 teeth extracted for orthodontic propose were selected for the study and randomly divided into two groups, class V cavities were prepared on the buccal surface and samples were restored with conventional glass ionomer cement and chitosan modified glass ionomer cement respectively, teeth were immersed in 0.5 % methylene blue for 24 hours and assessed using a spectrophotometer. RESULTS The data were analysed using the Unpaired T - test, and with statistical package for social sciences (SPSS) for Windows, version 25.0 (IBM Corp., Armonk, N.Y., USA). The confidence interval was set at 95 % and values of P < 0.05 were interpreted as statistically significant. CONCLUSIONS The study concluded that the addition of chitosan improves the mechanical properties of conventional glass ionomer cement, and a spectrophotometer can be used as a better evaluation tool in assessing microleakage. KEY WORDS Chitosan Modified GIC, Glass Ionomer Cement, Microleakage, Spectrophotometer

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Effect of incorporation of nano-hydroxyapatite particles on the clinical performance of conventional and resin-modified glass ionomer cement in class V cavities: split-mouth, randomized controlled trial

Bulletin of the National Research Centre ◽

10.1186/s42269-021-00655-2 ◽

2021 ◽

Vol 45 (1) ◽

Author(s):

Zeinab M. Zaki ◽

Maha A. Niazy ◽

Mohamed H. Zaazou ◽

Shaymaa M. Nagi ◽

Dina W. Elkassas

Keyword(s):

Surface Texture ◽

Clinical Performance ◽

Glass Ionomer Cement ◽

Glass Ionomer ◽

Class V ◽

Resin Modified Glass Ionomer ◽

Restorative Materials ◽

Significant Change ◽

Ionomer Cement

Abstract Background The aim of this study was to compare the clinical performance of Nano-hydroxyapatite-modified conventional glass ionomer cement (NHA-GIC) and Nano-hydroxyapatite-modified resin-modified glass ionomer cement (NHA-RMGIC) with conventional glass ionomer (CGIC) and resin-modified glass ionomer (RMGIC) in the treatment of caries class V cavities. Sixty patients with at least two cervical caries lesions participated in this study. A total of 120 class V cavities were prepared and then restored using different restorative materials. Restorations were clinically evaluated according to modified United States Public Health Service criteria at baseline and after 3, 6 and 9 months. Results There was no statistically significant difference in the clinical performance of the different restorative materials at any of the follow-up periods. However, throughout the study period there was a statistically significant change in the color match, surface texture and marginal integrity in NHA-GIC. A statistically significant change in the surface texture and marginal integrity was found in GIC. On the other hand, there was only a statistically significant change in surface texture in NHA-RMGIC. Conclusions All tested restorative materials, control (CGIC and RMGIC) as well as experimental (NHA-GIC and NHA-RMGIC), exhibited comparable clinical performance after 9 months follow-up.

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