scholarly journals Advances in glass-ionomer cements

2006 ◽  
Vol 14 (spe) ◽  
pp. 3-9 ◽  
Author(s):  
Carel Leon Davidson

This article describes the properties, advances and shortcomings of glass-ionomer cement as a restorative material. The adhesion of glass-ionomer to tooth structure is less technique sensitive than composite resins and its quality increases with time. Therefore glass-ionomer might turn out to the more reliable restorative material in minimal invasive dentistry based on adhesive techniques.

2004 ◽  
Vol 5 (4) ◽  
pp. 42-49 ◽  
Author(s):  
Yusuf Ziya Bayindir ◽  
Mehmet Yildiz

Abstract In this study the top and bottom surface hardness of two polyacid-modified composite resins (PMCRs), one resin-modified glass ionomer cement (RMGIC), and one composite resin were evaluated. The affect of water storage on their hardness was also investigated. The study was conducted using four different groups, each having five specimens obtained from fiberglass die molds with a diameter of 5 mm and a height of 2 mm. Measurements were made on the top and bottom surface of each specimen and recorded after 24 hours and again at 60 days. All tested materials showed different hardness values, and the values of top surfaces of the specimens were found to be higher than the bottom surface in all test groups. There was no statistical difference in the Vickers hardness (HV) values when the test specimens were kept in water storage. In conclusion Hytac displayed microhardness values higher than Vitremer and Dyract. We found the order of HV values to be Surfil > Hytac > Dyract > Vitremer, respectively. Vitremer presented the lowest microhardness level and Surfil the highest. Citation Bayindir YZ, Yildiz M. Surface Hardness Properties of Resin-Modified Glass Ionomer Cements and Polyacid-Modified Composite Resins. J Contemp Dent Pract 2004 November;(5)4:042-049.


e-GIGI ◽  
2013 ◽  
Vol 1 (2) ◽  
Author(s):  
Rudy Hakim

Kesehatan gigi dan mulut merupakan salah satu faktor penting dalam mencegah timbulnya penyakit di dalam tubuh. Salah satu masalah kesehatan gigi dan mulut yaitu karies. Salah satu cara penanggulangan karies adalah dengan membuang jaringan karies dan menumpatnya dengan bahan restorasi. Bahan restorasi berfungsi untuk memperbaiki dan merestorasi struktur gigi yang rusak. Saat ini pasien dan dokter gigi mempunyai banyak pilihan yang bervariasi dalam memilih material dan prosedur untuk merestorasi gigi yang berlubang akibat karies. Material-material restorasi yang digunakan yaitu amalgam, komposit dan glass ionomer kaca.Penelitian ini merupakan penelitian deskriptif. Penelitian dilakukan di AKPER Rumkit TK. III TNI-AD R. W Monginsidi Manado. Populasi pada penelitian ini yaitu seluruh mahasiswa AKPER Rumkit TK. III TNI-AD R. W Monginsidi Manado yang berjumlah 315 mahasiswa. Sampel penelitian yaitu mahasiswa yang menggunakan tumpatan GIC dengan total populasi yang berjumlah 83 mahasiswa.Hasil pemeriksaan menunjukkan bahwa penggunaan tumpatan GIC pada mahasiswa AKPER yang paling banyak yaitu wanita dengan alasan pemilihan bahan tumpatan sesuai anjuran dokter gigi. Sebagian besar tumpatan GIC yang mengalami ketidakutuhan berusia 1 sampai 6 bulan karena dipakai mengunyah makanan keras yang di tumpat kurang dari 24 jam.Kata kunci: Karies, tumpatan, glass ionomer kaca.ABSTRACTOral health is an important factor in preventing the onset of disease in the body. One of the problems of oral health is caries. One way to resolve this problem is by removing the caries prevention of caries and restore the tissue with restorative material. Restorative materials and restoration works to improve the damaged tooth structure. Currently, the patient and the dentist have a lot of options that vary in selecting materials and procedures for the restoration of dental cavities caused by caries. Restoration materials used are amalgam, composite and glass ionomer cement. This is a descriptive study. This study was conducted in the Army Nursing Academy Hospital TK.III R. W Monginsidi Manado. The population in this study is all the students of Army Nursing Academy Hospital TK.III R. W Monginsidi Manado, amounting to 315 students. Sample of this study is students who use dental restorative material GIC with a total population of 83 students. The highest number of sample wuth dental restorative material GIC in Nursing Academy students is women with the reasons of selection of materials as recommended by dentist. Most of which have damage of GIC 1 to 6 months old that used in chewing hard foods that are less than 24 hours.Keyword: Caries, dental restorative material, Glass ionomer Cement.


2011 ◽  
Vol 36 (1) ◽  
pp. 80-85 ◽  
Author(s):  
P. Neelakantan ◽  
S. John ◽  
S. Anand ◽  
N. Sureshbabu ◽  
C. Subbarao

Clinical Relevance The antibacterial and cariostatic properties of glass-ionomer cements are associated with the amount of fluoride released. Therefore, fluoride release from a restorative material for extended periods of time is considered favorable.


2019 ◽  
Vol 70 (1) ◽  
pp. 324-326
Author(s):  
Kamel Earar ◽  
Anca Porumb ◽  
Ruxandra Matei ◽  
Simona Cavalu ◽  
Ramona Amina Popovici ◽  
...  

The glass ionomer cements present very good bio compatibility especially due to the presence of Fluor in their composition. The reactivity from the dental pulp to the ionomer cements is also favorable, even in the case of the profound cavities. The metallic ionomer cements are obturation materials that tend to replace the amalgams and were created by adding of metallic alloys to the glass powder for the purpose of improving the mechanic properties. The resistance to abrasion of the glass ionomer cements reinforced with Ag is increased compared to the ionomer cements, being close to that of the composite resins with micro filling, but inferior to the amalgams or composites for the posterior area. All these properties of the metallic glass ionomers recommend their utilization in accomplishing the definitive obturations of the permanent teeth from the lateral area, where the physiognomic aspect is not on the first place and where it is necessary a material with fast grip. The physical-chemical qualities and the bio compatibility of the glass ionomers reinforced with particles of silver was our premise in their utilization for the obturation of the molars of six years in children.


2021 ◽  
Vol 13 (3) ◽  
pp. 97-101
Author(s):  
Arash Shishehian ◽  
Fatemeh Amiri ◽  
Alireza Izadi ◽  
Samaneh Abbasi ◽  
Maryam Farhadian ◽  
...  

Background: Luting cement provides the connection between crowns and tooth structure. The sensitivity, solubility, and decomposition stages of the cement after the hardening stage are still subjects of relative controversy. These characteristics could lead to a poor connection between the braces and the teeth, increased probability of decay, and decalcification. The present study aimed to evaluate the adsorption and solubility of 4 types of glass ionomer cement. Methods: Four luting cements were examined. A total of 10 specimens were prepared for each material following the manufacturer’s instructions, and the sorption and solubility were measured in accordance with the ISO 4049’s. Specimens were immersed in artificial saliva for 30 days, and were evaluated for sorption and solubility by first weighting them before incubation (W1), then immersing them in artificial saliva, dehydrating them in an oven for 24 hours, and weighing them again (W2 and W3, respectively). The data were analyzed using SPSS software version 21. One-way analysis of variance (ANOVA) followed by Tukey post hoc test was used to examine the differences among groups (α = 0.05). Results: As for the both sorption and solubility, there was a significant interaction between the sorption and solubility of all materials (P<0.001). The sorption values in artificial saliva were highest for glass ionomer cement Riva Luting followed by GC Fuji 1 and Cavex, whereas the least value was observed for Meron (P<0.000). As for solubility, it was significantly higher in Cavex followed by GC Fuji1 and Meron, but it was significantly lower in Riva Luting. Conclusions: It was determined that the weight changes of glass ionomer cements significantly varied among all the materials. Riva Luting followed by GC Fuji 1 had the highest water sorption, and the solubility was significantly higher in Cavex followed by GC Fuji1. Meron improved both water sorption and solubility properties among all glass ionomer cements.


2021 ◽  
Vol 13 ◽  
pp. 60-65
Author(s):  
Dr. Vatsala N ◽  
Dr. Reshma Dodwad ◽  
Dr. Priya Nagar ◽  
Dr. Richa Lakhotia ◽  
Dr. Anisha Jenny

Introduction: Early childhood caries in young children can be initial dental caries and caries involving most of the tooth structure resulting in pulpal involvement causing loss of tooth structure. There is a need for tooth restoration for functional and aesthetic reasons. Dentine opaquer can be used to fulfill both the criteria. Aim: The aim was to determine the efficacy of dentine opaquer to mask the underlying color of caries treated with restorative material and omega metal post after pulpectomy. Methods: A report of 2 cases performed in the Department of Pediatric and Preventive Dentistry in, Krishnadevaraya College of Dental Sciences and Hospital Bangalore. Two different treatments using dentine opaquer as the restorative material and as core buildup over glass ionomer cement were performed. Results: Both the cases showed favorable outcomes and better masking efficiency of dentine opaquer as restorative material and core build up material over glass ionomer cement. Conclusions: Dentine opaquer is a composite with a compatible shade and better retention on the tooth surface, as core build up material and along with omega loop demonstrated adequate retention, was easy to administer as a chair side technique and resulted in least resistant masticatory forces.


2001 ◽  
Vol 15 (4) ◽  
pp. 277-282 ◽  
Author(s):  
Maria Fernanda Borro BIJELLA ◽  
Maria Francisca Thereza Borro BIJELLA ◽  
Salete Moura Bonifácio da SILVA

This study evaluated, in vitro, marginal microleakage in class II restorations confected with the glass ionomer cement Vitremer and with the composite resins Ariston pHc and P-60. The aims of the study were to assess the effect of thermocycling on those materials and to evaluate two methods utilized in the analysis of dye penetration. Sixty premolars divided in three groups were utilized; the teeth had proximal cavities whose cervical walls were located 1 mm below the cementoenamel junction. Half of the test specimens from each group underwent thermocycling; the other half remained in deionized water, at 37ºC. The specimens were immersed, for 24 hours, in a basic 0.5% fuchsin solution at 37ºC. For the analysis of microleakage, the specimens were sectioned in a mesio-distal direction, and the observation was carried out with the software Imagetools. The results were evaluated through the 2-way ANOVA and through the Tukey’s test. All groups presented marginal microleakage. The smallest values were obtained with Vitremer, followed by those obtained with the composite resins P-60 and Ariston pHc. There was no statistically significant difference caused by thermocycling, and the method of maximum infiltration was the best for detecting the extension of microleakage.


Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1700
Author(s):  
Atsushi Kameyama ◽  
Aoi Saito ◽  
Akiko Haruyama ◽  
Tomoaki Komada ◽  
Setsuko Sugiyama ◽  
...  

This study aimed to examine the marginal seal between various commercial temporary restorative materials and exposed dentin/built-up composite. Sixty bovine incisors were cut above the cemento-enamel junction, and half of the dentin was removed to form a step, which was built up using flowable resin composite. The root canals were irrigated, filled with calcium hydroxide, and sealed using one of six temporary sealing materials (hydraulic temporary restorative material, temporary stopping material, zinc oxide eugenol cement, glass-ionomer cement, auto-cured resin-based temporary restorative material, and light-cured resin-based temporary restorative material) (n = 10 for each material). The samples were thermocycled 500 times and immersed in an aqueous solution of methylene blue. After 2 days, they were cut along the long axis of the tooth and the depth of dye penetration was measured at the dentin side and the built-up composite side. For the margins of the pre-endodontic resin composite build-up, the two resin-based temporary restorative materials showed excellent sealing. Hydraulic temporary restorative material had a moderate sealing effect, but the sealing effect of both zinc oxide eugenol cement and glass-ionomer cement was poorer.


2018 ◽  
Vol 6 (6) ◽  
pp. 616-620
Author(s):  
Rajat Gupta ◽  
◽  
Manvi Srivastava ◽  
Updesh Masih ◽  
◽  
...  

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