Artificial formed caries-like lesions around esthetic restorative materials

2002 ◽  
Vol 26 (3) ◽  
pp. 289-296 ◽  
Author(s):  
Nuray Attar ◽  
Alev Önen
Keyword(s):  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Polarized Light ◽  
Glass Ionomer ◽  
Secondary Caries ◽  
Dental Restorations ◽  
Restorative Materials ◽  
Acid Gel ◽  
Ionomer Cement

Dental restorations fail for a variety of reasons. Secondary caries is one of the primary causes of failure of dental restorations. One method for reducing frequency and severity of this problem is the use of fluoride containing restorative materials. The ability of a material to inhibit secondary caries formation is an important clinical therapeutic property. This investigation assessed the capacity of esthetic restorative materials to resist caries in vitro. Class V cavities were prepared in buccal and lingual surfaces of 50 extracted sound third molars. The occlusal and gingival cavosurface margin of each preparation was on enamel surface. The five materials were used: Conventional glass ionomer cement Ceramfil ß (PSP), two polyacid modified resin composites Compoglass (Vivadent) and Dyract (Dentsply/DeTrey), non fluoride releasing composite resin Valux Plus (3M) and fluoride releasing composite resin Tetric (Vivadent). After 10 weeks in an acid gel for caries-like lesion formation, the teeth were sectioned occluso-gingivally through the middle of the restorations and examined by polarized light microscopy, while immersed in water. The statistical analysis of the results showed that secondary caries initiation and progression might be reduced significantly when fluoride-containing materials were placed. The conventional glass ionomer cement (Ceramfil ß) provided the highest protection against caries attack and the non-fluoride releasing composite resin (Valux Plus) restoration provided the least (p<0.05).

scholarly journals Streptococcus mutans-induced secondary caries adjacent to glass ionomer cement, composite resin and amalgam restorations in vitro

2007 ◽  
Vol 21 (4) ◽  
pp. 368-374 ◽  
Author(s):  
Adriana Gama-Teixeira ◽  
Maria Regina Lorenzeti Simionato ◽  
Silvia Nagib Elian ◽  
Maria Angela Pita Sobral ◽  
Maria Aparecida Alves de Cerqueira Luz
Keyword(s):  
Streptococcus Mutans ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Cement Composite ◽  
Glass Ionomer ◽  
Secondary Caries ◽  
Restorative Materials ◽  
Intact Surface ◽  
Ionomer Cement

The aim of this study was to define, in vitro, the potential to inhibit secondary caries of restorative materials currently used in dental practice. Standard cavities were prepared on the buccal and lingual surfaces of fifty extracted human third molars. The teeth were randomly divided into five groups, each one restored with one of the following materials: glass ionomer cement (GIC); amalgam; light-cured composite resin; ion-releasing composite; and light-cured, fluoride-containing composite resin. The teeth were thermocycled, sterilized with gamma irradiation, exposed to a cariogenic challenge using a bacterial system using Streptococcus mutans, and then prepared for microscopic observation. The following parameters were measured in each lesion formed: extension, depth, and caries inhibition area. The outer lesions developed showed an intact surface layer and had a rectangular shape. Wall lesions were not observed inside the cavities. After Analysis of Variance and Component of Variance Models Analysis, it was observed that the GIC group had the smallest lesions and the greatest number of caries inhibition areas. The lesions developed around Amalgam and Ariston pHc restorations had an intermediate size and the largest lesions were observed around Z-100 and Heliomolar restorations. It may be concluded that the restorative materials GIC, amalgam and ion-releasing composites may reduce secondary caries formation.

scholarly journals Marginal Leakage of Endodontic Temporary Restorative Materials around Access Cavities Prepared with Pre-Endodontic Composite Build-Up: An In Vitro Study

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1700
Author(s):  
Atsushi Kameyama ◽  
Aoi Saito ◽  
Akiko Haruyama ◽  
Tomoaki Komada ◽  
Setsuko Sugiyama ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Resin Composite ◽  
Glass Ionomer Cement ◽  
In Vitro Study ◽  
Restorative Material ◽  
Glass Ionomer ◽  
Zinc Oxide Eugenol ◽  
Restorative Materials ◽  
Ionomer Cement

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.

A Fluoride-containing Composite Resin—An In Vitro Study of a New Material for Orthodontic Bonding

1989 ◽  
Vol 16 (3) ◽  
pp. 207-212 ◽  
Author(s):  
P. A. Cook ◽  
C. C. Youngson
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
In Vitro Study ◽  
The Other ◽  
Glass Ionomer ◽  
New Material ◽  
Bond Strengths ◽  
Ionomer Cement

The shear/peel bond strength of a new material, a ‘hybrid’ of a composite resin and a glass ionomer cement, was compared in vitro with the bond strengths of a composite resin and of a glass ionomer cement. The new material had a significantly greater bond strength than the other materials tested and its properties were very similar to the composite resin. Unlike the glass ionomer cement, etching of the enamel before applying the adhesive is required. The clinical indications for using this new cement are discussed.

Effect of Restorative Protocol on Cuspal Strain and Residual Stress in Endodontically Treated Molars

2016 ◽  
Vol 41 (1) ◽  
pp. 23-33 ◽  
Author(s):  
RAS Pereira ◽  
AA Bicalho ◽  
SD Franco ◽  
D Tantbirojn ◽  
A Versluis ◽  
...  
Keyword(s):  
Residual Stress ◽  
Fracture Resistance ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Shrinkage Strain ◽  
Glass Ionomer ◽  
Pulp Chamber ◽  
Biomechanical Behavior ◽  
Restorative Materials ◽  
Ionomer Cement

SUMMARY Objectives To evaluate the effect of the restorative protocol on cuspal strain, fracture resistance, residual stress, and mechanical properties of restorative materials in endodontically treated molars. Methods Forty-five molars received mesio-occlusal-distal (MOD) Class II preparations and endodontic treatment followed by direct restorations using three restorative protocols: composite resin (CR) only (Filtek Supreme, 3M-ESPE), resin modified glass ionomer cement in combination with CR (Vitremer, 3M-ESPE in pulp chamber and Filtek Supreme in MOD cavity), conventional glass ionomer cement in combination with composite resin (CGI-CR) (Ketac Fil, 3M-ESPE in pulp chamber and Filtek Supreme in MOD cavity). Cuspal strain was measured using strain gauges, and fracture resistance was tested with an occlusal load. Elastic modulus (EM) and Vickers hardness (VH) of the restorative materials were determined at different depths using dynamic microhardness indentation. Curing shrinkage was measured using the strain gauge technique. The restorative protocols were also simulated in finite element analysis (FEA). The shrinkage strain, cuspal strain, EM, VH, and fracture resistance data were statistically analyzed using split-plot analysis of variance and Tukey test (p=0.05). Residual shrinkage stresses were expressed in modified von Mises equivalent stresses. Results Shrinkage strain values (in volume %) were Ketac Fil (0.08±0.01) < Vitremer (0.18±0.01) < Filtek Supreme (0.54±0.03). Cuspal strain was higher and fracture resistance was lower when using CR only compared with the techniques that used glass ionomer. The EM and VH of the materials in the pulp chamber were significantly lower for glass ionomer. The FEA showed that using CR only resulted in higher residual stresses in enamel and root dentin close to the pulp chamber than the combinations with glass ionomers (RMGI-CR and CGI-CR). Conclusions The choice of restorative protocol significantly affected the biomechanical behavior of endodontically treated molars. Using glass ionomer to fill the pulp chamber is recommended when endodontically treated molars receive direct composite restorations because it reduces cuspal strain and increases fracture resistance.

scholarly journals Gambaran Penggunaan Resin Komposit dan Semen Ionomer Kaca Sebagai Bahan Restorasi di Poli Gigi Rumah Sakit Gunung Maria Tomohon Tahun 2012

e-GIGI ◽  
2013 ◽  
Vol 1 (2) ◽  
Author(s):  
Michael Sumolang
Keyword(s):  
Composite Resin ◽  
Resin Composite ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Dental Resin ◽  
Anterior Teeth ◽  
Restorative Materials ◽  
Composite Resin Restorations ◽  
Ionomer Cement ◽  
Resin Restorations

Gigi yang terserang kariesdapatdirawatdenganmenggunakanbahanrestorasi. Resin komposit dan semen ionomer kacamerupakanbahanyangdigunakanuntukperawatanrestorasi di poli gigi RS Gunung Maria Tomohon.Tujuanpenelitianiniuntukmengetahuigambaranpenggunaanbahanrestorasi resin kompositdan semen ionomerkaca di poligigi RSGunung Maria Tomohontahun 2012. Penelitianinimerupakanpenelitiandeskrpitif, data diambildarirekammedispasienrestorasidenganmetodetotal sampling.Data yang didapatyaitujumlah rekammedis pasien restorasi pada tahun 2012 sebanyak 268 danjumlahgigi yang direstorasisebanyak 387.Gigi yang direstorasimenggunakanbahan resin kompositsebanyak 207 gigi, sedangkangigi yang direstorasimenggunakan semen ionomerkacasebanyak 180 gigi.Hasilpenelitianinidibagiberdasarkanusia, jeniskelamin, elemengigidandiagnosa. Hasilpenelitianmenunjukankategoriusiadewasalebihseringmelakukanperawatanretorasi resin komposit dengan 145 gigi (70%) dan semen ionomerkaca dengan 106 gigi (58,8%) yang direstorasi, pasienperempuanlebihseringmelakukanperawatanrestorasiresin komposit dengan 117 (59,4%) dan semen ionomerkaca dengan 101 (56%) gigi yang direstorasi. Gigi bagian anterior seringdirestorasidengan menggunakan resin komposit dan gigibagian posterior seringdirestorasimenggunakan semen ionomerkaca.Hiperemiapulpamerupakanpenyakit yang paling didiagnosadan paling seringmendapatkanperawatanrestorasi resin komposit dengan 179 kasus (86%)dan semen ionomerkaca 157 kasus (87,3%).Kata Kunci:bahan restorasi, resin komposit, semen ionomerkacaABSTRACT Dental caries infected can be treated with restorative materials. Resin composites and glass ionomer cement is a material used for dental restorative treatment on poly Hospital Gunung Maria Tomohon. The purpose of this study to describe the use of composite resin restorations and glass ionomer cement in the teeth poly Hospital Gunung Maria Tomohon in 2012. This research is deskrpitif , data extracted from medical records of patients with restoration of total sampling.Data method obtained the restoration of the patient's medical record number in 2012 as many as 268 and the number of restored teeth as much as 387. Restored teeth using composite resin materials as much as 207 teeth, whereas the teeth restored with glass ionomer cement as many as 180 teeth. The results are divided based on age, sex, dental and diagnostic elements. The results showed the adult age category more often retorasi care dental resin composite with 145 (70 %) and glass ionomer cement with 106 teeth (58,8 %) were restored, female patients were more frequent maintenance of composite resin restorations with 117 (59,4 %) and glass ionomer cement with 101(56 %) restored teeth. Anterior teeth are restored using gigibagian posterior composite resin and glass ionomer cement seringdirestorasimenggunakan. Pulp hyperemia is the most diagnosed diseases and most often get care composite resin restorations with 179 cases (86 %) and glass ionomer cement 157 cases (87,3%). Keywords : restorative materials, composite resin, glass ionomer cement

scholarly journals Comparison of Shear Bond Strength of Resin Reinforced Chemical Cure Glass Ionomer, Conventional Chemical Cure Glass Ionomer and Chemical Cure Composite Resin in Direct Bonding Systems: An in vitro Study

2013 ◽  
Vol 14 (1) ◽  
pp. 21-25 ◽  
Author(s):  
T Praveen Kumar Reddy ◽  
Kolasani Srinivasa Rao ◽  
Garlapati Yugandhar ◽  
B Sunil Kumar ◽  
SN Chandrasekhar Reddy ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Composite Resins ◽  
Glass Ionomer ◽  
Bonding System ◽  
Bonding Systems ◽  
Ionomer Cement

ABSTRACT The acid pretreatment and use of composite resins as the bonding medium has disadvantages like scratching and loss of surface enamel, decalcification, etc. To overcome disadvantages of composite resins, glass ionomers and its modifications are being used for bonding. The study was conducted to evaluate the efficiency of resin reinforced glass ionomer as a direct bonding system with conventional glass ionomer cement and composite resin. The study showed that shear bond strength of composite resin has the higher value than both resin reinforced glass ionomer and conventional glass ionomer cement in both 1 and 24 hours duration and it increased from 1 to 24 hours in all groups. The shear bond strength of resin reinforced glass ionomer cement was higher than the conventional glass ionomer cement in both 1 and 24 hours duration. Conditioning with polyacrylic acid improved the bond strength of resin reinforced glass ionomer cement significantly but not statistically significant in the case of conventional glass ionomer cement. How to cite this article Rao KS, Reddy TPK, Yugandhar G, Kumar BS, Reddy SNC, Babu DA. Comparison of Shear Bond Strength of Resin Reinforced Chemical Cure Glass Ionomer, Conventional Chemical Cure Glass Ionomer and Chemical Cure Composite Resin in Direct Bonding Systems: An in vitro Study. J Contemp Dent Pract 2013;14(1):21-25.

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