scholarly journals Surface Hardness of Dental Composite Resin Restorations in Response to Preventive Agents

2016 ◽  
Vol 17 (12) ◽  
pp. 978-984 ◽  
Author(s):  
Khalid H Al-Samadani
Keyword(s):  
Composite Resin ◽  
Resin Composite ◽  
Surface Hardness ◽  
Dental Composite ◽  
Oral Diseases ◽  
Stannous Fluoride ◽  
Dental Composite Resin ◽  
Composite Resin Restorations ◽  
The Impact ◽  
Resin Restorations

ABSTRACT Introduction To assess the impact of using preventive mouthwash agents on the surface hardness of various resins composites. Materials and methods Hundred specimens were prepared from five types of composite resin material in a Teflon mold. Five specimens from each type of restorative materials (Herculite XRV Ultra, Estelite Σ Quick, Z Hermack, Versa Comp Sultan, and Empress Direct IPS) were evaluated posttreatment with immersion in four types of preventive mouthwashes gels and rinses – group 1: Flocare gel (0.4% stannous fluoride), group 2: Pascal gel (topical APF fluoride), group 3: Pro-relief mouthwash (Na fluoride), and group 4: Plax Soin mouthwash (Na fluoride) – at 37°C in a dark glass container at 24, 48, and 72 hours. Surface hardness measurement was made for each tested material. Statistically, we analyzed the mean values with one-way analysis of variance (ANOVA) and Tukey's test, with significance level of p < 0.05. Results All composite resin materials showed decrease in their surface hardness with the time elapsed (24, 48, and 72 hours) postimmersion in the preventive mouthwashes and gels except the Herculite XRV Ultra and Versa Comp Sultan materials. Flocare gel group showed increase in the surface hardness after 48 hours of immersion than the other periods and in Estelite Σ Quick after 72 hours. There was significant differences in all materials tested with the immersion in the preventive mouthwashes and gels, such as Flocare gel (0.4% stannous fluoride), Pro-relief mouthwash (Na fluoride), and Plax Soin mouthwash (Na fluoride) except Pascal gel (topical APF fluoride) (p > 0.05), at time intervals mentioned earlier (p < 0.05). Conclusion The effect of preventive mouthwashes and gels on resin composite materials was decreased surface hardness with the time elapse of immersion for all materials except the Flocare gel group, which contains 0.4% stannous fluoride as a preventive ingredient increases the surface hardness after 48 h for Herculite XRV Ultra and Versa Comp Sultan and Estelite Σ Quick after 72 hours. Clinical significance The preventive agents in the form of mouthwash and gel are used to prevent oral diseases that affect the surface hardness of composite resin, and this leads to occlusion, color stability, and surface roughness. How to cite this article Al-Samadani KH, Surface Hardness of Dental Composite Resin Restorations in Response to Preventive Agents. J Contemp Dent Pract 2016;17(12):978-984

Influence of Different Exposure Times Required to Stabilize Hardness Values of Composite Resin Restorations

2009 ◽  
Vol 10 (2) ◽  
pp. 42-50
Author(s):  
Larissa Maria Cavalcante ◽  
Luiz André Freire Pimenta ◽  
Nick Silikas ◽  
Thiago Assunção Valentino ◽  
Bruno Carlini-Jr.
Keyword(s):  
Linear Regression ◽  
Polynomial Regression ◽  
Composite Resin ◽  
Irradiation Time ◽  
Resin Composite ◽  
Knoop Hardness ◽  
Quadratic Regression ◽  
Composite Resin Restorations ◽  
Hardness Values ◽  
Resin Restorations

Abstract Aim The purpose of this study was to evaluate if Knoop hardness values (KHN) for top and bottom surfaces of resin composite materials can reach a plateau within a clinically acceptable photoactivation time. Methods and Materials Four light-curing units (LCUs) were evaluated in this study (n=5): QTH (Optilux501: 550 mW/cm2) and LEDs (FreeLight2: 1100 mW/cm2; UltraLume5: 900 mW/cm2; and Radii: 750 mW/cm2). Composite resin discs (4 mm × 2 mm) of Heliomolar (Ivoclar/Vivadent) and Herculite XRV (Kerr) were tested using five photoactivation times (20, 40, 60, 80, and 100 seconds). KHN were obtained for each test specimen and comparisons between LCUs, depths, and photoactivation times were analyzed using two-way analysis of variance (ANOVA) and polynomial regression analysis. Results Data for Heliomolar discs using linear regression found a relationship between the independent variables KHN and time with the Optilux501 at the top and bottom surfaces (r2=0.68/ r2=0.66). Radii presented a linear regression at the top surface (r2=0.75) and a quadratic regression at the bottom (r2=0.94). A quadratic regression was also detected for UltraLume5 and FreeLight2 at both top (r2=0.84/ r2=0.94) and bottom surfaces (r2=0.97/ r2=0.90), respectively, reaching a plateau at 80 seconds in all cases. For Herculite XRV, a quadratic regression was observed for all LCUs at the top and bottom surfaces and 80 seconds irradiation time was needed to reach a plateau in KHN. Conclusion There is a specific, but not clinically acceptable, photoactivation time that KHN at both top and bottom surfaces can reach a plateau and is dependent on LCUs and the resin-composite tested. Clinical Significance The LCUs and the resin-composite formulation affected the exposure time required to stabilize hardness values. The overall performance of LED LCUs was better than the QTH LCU regardless of the material evaluated. Citation Cavalcante LM, Valentino TA, Carlini B Jr, Silikas N, Pimenta LAF. Influence of Different Exposure Times Required to Stabilize Hardness Values of Composite Resin Restorations. J Contemp Dent Pract 2009 March; (10)2:042-050.

scholarly journals Effect of Three Different Mouthrinses on Microleakage of Composite Resin Restorations with Two Adhesive Systems after Bleaching with 10% Carbamide Peroxide

2012 ◽  
Vol 13 (1) ◽  
pp. 16-22 ◽  
Author(s):  
Soodabeh Kimyai ◽  
Siavash Savadi Oskoee ◽  
Amir Ahmad Ajami ◽  
Mahmoud Bahari ◽  
Mehdi Abed Kahnamoui ◽  
...  
Keyword(s):  
Composite Resin ◽  
Resin Composite ◽  
Adhesive System ◽  
Adhesive Systems ◽  
Carbamide Peroxide ◽  
Etch And Rinse ◽  
Composite Resin Restoration ◽  
Bonferroni Test ◽  
Composite Resin Restorations ◽  
Resin Restorations

ABSTRACT Aim The aim was to evaluate the effects of Oral-B (OB), Listerine (LN) and Rembrandt Plus (RM) mouthrinses on microleakage of composite resin restorations bonded with two adhesive systems after bleaching with 10% carbamide peroxide. Materials and methods A total of 60 Cl V cavities were prepared on human premolars. The occlusal and gingival margins were placed 1 mm occlusal to and apical to CEJ respectively. The teeth were randomly divided into two groups based on the adhesive system used: Excite (EX) and Clearfil SE Bond (CSE) groups. After composite resin restoration of cavities, thermocycling and bleaching with 10% carbamide peroxide for 2 hours daily for 14 days, the teeth in each adhesive group were further subdivided into three subgroups and were immersed for 12 hours in the three OB, RM and LN mouthrinses. The teeth were then placed in 2% basic fuschin for 24 hours. After dissecting the teeth, microleakage was evaluated under a stereomicroscope at 16×. Data was analyzed with multifactor ANOVA and Bonferroni test at p < 0.05. Results Microleakage with EX was significantly higher than that with CSE (p = 0.009). Microleakage at gingival margins was significantly higher than that at occlusal margins (p = 0.15). Microleakage with OB was higher than that with LN (p = 0.02). However, there were no significant differences in microleakage between LN and RM (p = 1) and between RM and OB (p = 0.15). In addition, with the EX adhesive system, microleakage with OB was higher than that with LN and RM (p = 0.02). Conclusion In the present study, microleakage of composite resin restorations was influenced by the type of the adhesive system, mouthrinse type and the location of the cavity margin. Clinical significance Use of some mouthrinses, such as OB after bleaching can increase postrestoration microleakage of resin composite restorations bonded with etch-and-rinse adhesive systems. How to cite this article Ajami AA, Bahari M, Oskoee SS, Kimyai S, Kahnamoui MA, Rikhtegaran S, Ghaffarian R. Effect of Three Different Mouthrinses on Microleakage of Composite Resin Restorations with Two Adhesive Systems after Bleaching with 10% Carbamide Peroxide. J Contemp Dent Pract 2012;13(1):16-22.

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

The Effect of LZB-GC Antibacterial Agent on Mechanics and Friction Properties of Dental Composite Resin

2013 ◽  
Vol 791-793 ◽  
pp. 299-302
Author(s):  
Xiao Qiang Che ◽  
Song Ying Zhang ◽  
Yun Ping Chen ◽  
Bin Liu
Keyword(s):  
Friction Coefficient ◽  
Flexural Strength ◽  
Antibacterial Agent ◽  
Composite Resin ◽  
Surface Hardness ◽  
Dental Composite ◽  
Ultrasonic Methods ◽  
Dental Composite Resin

The antibacterial agent (LZB-GC) was added to composite resin materials with varied ratio (0.5%, 1%, 1.5%, and 2%) by mechanical and ultrasonic methods. The effects of different contents of the antibacterial agent on the mechanical and fibration properties of the composite resin were measured. The results showed 1.5% group acquired the best flexural strength, and the surface hardness decreased while the friction coefficient increased with improving the antibacterial agent content.

Evaluation of the formation of marginal gaps in preheated composite resin restorations

2014 ◽  
Author(s):  
Marco Antonio Gallito
Keyword(s):  
Room Temperature ◽  
Composite Resin ◽  
Resin Composite ◽  
Polymeric Materials ◽  
Sem Analysis ◽  
Composite Resins ◽  
Posterior Teeth ◽  
Polymerization Shrinkage ◽  
Composite Resin Restorations ◽  
Resin Restorations

Composite resins are polymeric restorative materials that have acceptable mechanical properties, so they are used in anterior and posterior teeth. There is, however, polymerization shrinkage inherent in the polymeric materials. This contraction is responsible for the formation of cracks at the interface of the restoration. These gaps contribute to the staining of the composite resin and the appearance of cavities. In order to minimize the effects of polymerization shrinkage, variations in restorative technique has been introduced to fulfill this goal. The preheating resin composite is one of them.This study aimed to assess the formation of marginal gaps, using scan electron microscopy, in composite resin restorations created using one room-temperature composite resin and one preheated to 60°C. 20 recently-extracted human molars with circular cavities in the surface dentine of each proximal surface were used. The cavities were restored using Filtek Z350 (3M) composite resin affixed with Adper Scotchbond Multipurpose Adhesive (3M) and divided into two groups of 10 samples: group 1 – room-temperature composite resin restorations (n=10) and group 2 – composite resin restorations preheated to 60oC (n=10). The samples were kept in a bacteriological incubator for a period of seven days. After this, the restorations were polished and epoxy resin replicas were created using a casting with addition silicone for subsequent SEM analysis. The gaps were measured with the aid of UTHSCSA Image tool software and the results were submitted to Student “t” test statistical analysis, achieving the following results: the highest marginal gap figures were obtained with Filtek Z350 resin preheated to 60oC (t= -3.961 and p=0.000). Based on the methodology employed and the results achieved, it can be concluded that there was a greater formation of marginal gaps in the dentin-composite resin interface where Filtek Z350 resin preheated to 60°C was used for restorations, thus making it preferable to use room-temperature composite resin.Keywords:Composite resin. Marginal gaps. Electronic microscopy.

Effect of Centripetal and Incremental Methods in Class II Composite Resin Restorations on Gingival Microleakage

2007 ◽  
Vol 8 (2) ◽  
pp. 113-120 ◽  
Author(s):  
Horieh Moosavi ◽  
Marjaneh Ghavamnasiri ◽  
Najmeh Tahvildarnejad
Keyword(s):  
Composite Resin ◽  
Resin Composite ◽  
Class Ii ◽  
Incremental Methods ◽  
Maxillary Premolars ◽  
Recorded Data ◽  
The Mean ◽  
Composite Resin Restorations ◽  
Parametric Statistical Test ◽  
Resin Restorations

Abstract Aim The aim of this study was to evaluate the microleakage at gingival margins below the cementoenamel junction (CEJ) of Class II composite restorations using various placement techniques. Methods and Materials Sound human maxillary premolars were selected. Eighty slot-style cavities on the mesial or distal surfaces were prepared with the cervical margins located apical to the CEJ. The specimens were divided into two groups based on the restorative technique utilized (centripetal or incremental). Each group was then categorized into two subgroups according to the type of matrix used resulting in a total of four experimental groups as follows: IP=Incremental and Palodent matrix, IT = Incremental and Transparent matrix, CP = Centripetal and Palodent matrix, and CT = Centripetal and Transparent matrix. Following restoration with a total etch adhesive (Single Bond) and a resin composite (Z100), the teeth were thermocycled. Then specimens were immersed in 0.5% basic fuchsin dye for 24 hours at a temperature of 37°C. Sectioned restorations were examined under a stereomicroscope (40X magnification), and the extent of the microleakage was scored and recorded. Data were analyzed using the Kruskal-Wallis non-parametric statistical test (P=0.05). Results In the four groups of the study no significant differences in the mean rank of microleakage were observed (p>0.05). Conclusion When the gingival margin was located on cementum, the kind of matrix and filling technique did not reduce the microleakage. Citation Ghavamnasiri M, Moosavi H, Tahvildarnejad N. Effect of Centripetal and Incremental Methods in Class II Composite Resin Restorations on Gingival Microleakage. J Contemp Dent Pract 2007 February;(8)2:113-120.

scholarly journals Apeksifikasi Menggunakan Mineral Apeksifikasi Menggunakan Mineral Trioxide Aggregate dan Bleaching Intrakoronal pada Insisivus Sentralis Kanan Maksila

2016 ◽  
Vol 1 (1) ◽  
pp. 54
Author(s):  
Caecilia Lelia Rahmawati ◽  
Tunjung Nugraheni
Keyword(s):  
Composite Resin ◽  
Chemical Activation ◽  
Mineral Trioxide Aggregate ◽  
Dental Composite ◽  
Central Incisor ◽  
Class Iii ◽  
Pulp Tissue ◽  
Maxillary Central Incisor ◽  
Composite Resin Restorations ◽  
Resin Restorations

Trauma pada gigi yang dialami pada saat muda dapat menyebabkan gigi immature non vital dengan apek terbuka, yang berlanjut pada infeksi pada jaringan pulpa dan diskolorasi gigi. Laporan kasus ini menyajikan penggunaan MTA (Mineral Trioxide Aggregate) sebagai bahan apeksifikasi, perawatan bleaching intrakoronal serta restorasi resin komposit dengan pasak resin komposit aktivasi kimia pada gigi insisivus sentralis kanan maksila, sehingga dapat mempertahankan dan mengembalikan fungsi gigi. Seorang pasien wanita muda datang ke RSGM Prof. Soedomo untuk merawatkan gigi insisivus sentralis kanan maksila yang patah 11 tahun yang lalu karena jatuh. Diagnosa gigi insisivus sentralis kanan maksila fraktur Kelas IV Ellis, pulpa nekrosis dengan lesi periapikal, apeks terbuka, dan diskolorasi. Prosedur perawatan diawali dengan preparasi saluran akar teknik konvensional, apeksifikasi menggunakan MTA dan bleaching intrakoronal teknik walking bleach, restorasi resin komposit kavitas kelas IV dengan teknik mock up dan pasak resin komposit. Apeksifikasi dan bleaching intra koronal disertai pasak dan restorasi resin komposit adalah perawatan yang baik yang dapat dilakukan pada gigi insisivus sentralis kanan maksila imature, dengan pulpa terbuka dan diskolorasi. Pasien merasa puas dengan perawatan yang telah dilakukan dan fungsi gigi juga telah dapat dikembalikan, antara lain fungsi estetik dan fonetik. ABSTRACT: Apexification Using Mineral Trioxide Aggregate, Intracoronal Bleaching, and Composite Resin Restoration with Dental Composite Resin Posts Right Central Maxillary. Trauma to teeth in a young age can cause non vital immature teeth with open apex, which leads to the infection in the pulp tissue and discoloration of the teeth. This case report is to present the use of MTA (Mineral Trioxide Aggregate) as apexification material, intracoronal bleaching treatments and composite resin restorations with composite resin chemical activation posts on the maxillary right central incisor, so as to maintain and restore tooth function. A young female patient came to Prof. Soedomo Dental Hospital to repair right maxillary central incisors which were broken 11 years previously because of falling. The diagnosis was right maxillary central incisor Ellis Class III fractures, pulp necrosis with periapical lesions, open apex, and discoloration. The treatment procedure began with the conventional root canal preparation techniques, apexification using Mineral Trioxide Aggregate (MTA) and intracoronal bleaching with the technique of walking bleach. The composite resin restorations class IV cavities used a mock-up technique and composite resin post. Apexification and intra-coronal bleaching with post and composite resin restorations are good treatments that can be performed on the immature right maxillary central incisor, without exposing pulp and discoloration. The patient was satisfied with the care that had been done and also; the function of her teeth could be restored, including aesthetic and phonetic functions.

scholarly journals Bibliometric Analysis of Composite Resin From 2000-2020

2021 ◽  
Author(s):  
Sultan Gizem Ülkü ◽  
Nimet Ünlü
Keyword(s):  
English Language ◽  
Composite Resin ◽  
Resin Composite ◽  
Citation Count ◽  
Dental Materials ◽  
Composite State ◽  
The Usa ◽  
Composite Resin Restorations ◽  
Number Of Publications ◽  
Resin Restorations

Introduction: To indentify the most effective actors(authors, countries, and journals) about composite resin restorations in the period 2000-2020.Material and Methods: An electronis research was conducted in the Scopus database by selecting the words &lsquo;composite resin&rsquo; and &lsquo;restoration and English language, article and review types, dentistry field. Their bibliometric data including publication title, authorship, citation count, citation dentistry, year of publication, country and institution of origin, journal of publication, study design, and keywords were extracted and analyzed.Results and Discussion: To our knowledge, this is the first bibliometric article on composite resin restorations. This study provides information about authors, institutions and countries that contribute to significant improvements in composite resin restorations. From 2000 to 2020, there were 7118 articles published from 99 countries.Articles originate primarily from the USA and Brazil. Results indicate that the USA, Brazil, Germany, Turkey, the United Kingdom, Japan, Swtizerland, Italy, Netherlands and India are the leading countries in composite resin restoration research and account for 51.8% of the total number of publications. The total number of citations are 158.404, corresponding to 22 citations per paper publication. During the time period examined, 776 hot articles and 228 classic articles on composite resin restorations were found.The journal with the most publications is &lsquo;Operative Dentistry&rsquo;. The publishing houses of the top 10 journals are from 4 countries: USA(6),Netherlands(2),Germany(1),Japan(1). The most cited article within the boundaires of this study is Ferracane&rsquo;s article titled &lsquo;Resin composite-State of the art&rsquo;, which was published in Dental Materials in 2011 and received 913 citations.

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