BULK FILL COMPOSITE RESIN RESTORATION TECHNIQUES REPLACE INCREMENTAL TECHNIQUES

2021 ◽  
Vol 17 (1) ◽  
pp. 9-14
Author(s):  
Ilma Yudistian ◽  
Keyword(s):  
Composite Resin ◽  
Light Transmission ◽  
Composite Resins ◽  
Polymerization Process ◽  
Physical Strength ◽  
Time Of Application ◽  
Insertion Method ◽  
Restoration Techniques ◽  
Composite Resin Restoration ◽  
Sophisticated Technology

Introduction. Shrinkage during the polymerization process is the main disadvantage of using composite resins because it creates pressure between the tooth and the restoration which causes failure of the adhesion of the composite resin to the tooth, micro-fissures, and cuspid deflection. Review. To reduce shrinkage that occurs, it is known that conventional composite resins must be inserted into the cavity incrementally or in layers with a maximum thickness of 2 mm per layer. However, the incremental insertion method has several disadvantages, namely that it requires a longer clinical time for restoration. To overcome the shortcomings of these conventional composites, Bulk-fill composite resin was introduced. Composite bulk fill is a sophisticated technology that allows composites to be directly placed on the restoration, has a low polymerization shrinkage to reduce micro-leakage, reduces stress in the presence of elasticity, increases the depth of at least 4 mm translucent at the time of application, is very conducive to light transmission, is more flowable to allow adaptation to the cavity, including cervical margins, it is easy to apply with minimal handling and is resistant to large stresses. Conclusion. With the characteristics possessed by the Bulk-fill composite resin, it is known that the bulk-fill technique in addition to reducing the clinical application time, can also improve the edge adaptation between the restoration and the tooth compared to the incremental technique, without reducing its physical strength

scholarly journals The effect of UDMA and Bis-GMA irradiation period on residual monomers in resin packable composite

2019 ◽  
Vol 52 (1) ◽  
pp. 24
Author(s):  
Jayanti Rosha ◽  
Adioro Soetojo ◽  
Putu Dewi Purnama Sari Budha ◽  
M. Mudjiono
Keyword(s):  
Compressive Strength ◽  
High Performance ◽  
Composite Resin ◽  
Ethanol Solution ◽  
Composite Resins ◽  
Polymerization Process ◽  
Test Results ◽  
Glycol Dimethacrylate ◽  
Irradiation Period ◽  
Urethane Dimethacrylate

Background: Residual monomers are non-polymerized monomers which can cause clinical harm, for example inflammation, to oral cavity tissue while the remaining monomers can potentially be carcinogenic. The more residual monomers that remain due to an imperfect polymerization processes, the lower the compressive strength level and the higher the number of micro slits that can cause secondary caries and tooth sensitivity. Urethane dimethacrylate (UDMA) and bisphenol A glycol dimethacrylate (Bis-GMA) constitute two of the resins most frequently used in packable composites. During the short irradiaton period forming part of the polymerization process, UDMA and Bis-GMA have the potential to produce residual monomers. Purpose: This study aimed to compare the number of residual monomers in packable composite resin following irradiation lasting 1x20 seconds and 2x20 seconds. Methods: 28 samples of cylindrical packable composite with a thickness of 2 mm and a diameter of 5 mm were divided into four groups. Groups 1 and 2 were irradiated for 1x20 seconds, and groups 3 and 4 for 2x20 seconds with the composite subsequently being immersed in ethanol solution for 24 hours. The number of residual monomers using high-performance liquid chromatography (HPLC) devices was calculated and the results statistically analyzed using a Mann-Whitney Test. Results: Repeated irradiation had no effect on the amount of residual monomers in packable composite resins. However, there were differences in the number of residual monomers in the material contained in packable composite resins Bis-GMA and UDMA, while the remaining monomers in UDMA outnumbered those in Bis-GMA. Conclusion: The number of residual monomers in Bis-GMA is lower than in the remaining UDMA after 1x20 seconds irradiation, while the number of residual monomers in Bis-GMA and UDMA following 2x20 seconds irradiation was no different to that after irradiation of 1x20 seconds duration.

scholarly journals Comparison of silorane and methacrylate-based composite resins on the curing light transmission

2010 ◽  
Vol 21 (6) ◽  
pp. 538-542 ◽  
Author(s):  
Ricardo Danil Guiraldo ◽  
Simonides Consani ◽  
Rafael Leonardo Xediek Consani ◽  
Sandrine Bittencourt Berger ◽  
Wilson Batista Mendes ◽  
...  
Keyword(s):  
Composite Resin ◽  
Light Transmission ◽  
Knoop Hardness ◽  
Composite Resins ◽  
Power Meter ◽  
Light Curing ◽  
Curing Light ◽  
The Mean ◽  
Spectral Distributions ◽  
The Difference

The aim of this study was to investigate the influence of different composite resins - Filtek P90 (silorane-based composite) and Heliomolar (methacrylate-based composite) - on light transmission and decrease in Knoop hardness between the bottom and top of cured specimens. The irradiance of a light-curing unit (LCU) was measured with a power meter (Ophir Optronics; 900 mw/cm2) and spectral distributions were obtained using a spectrometer (USB 2000). Twenty standardized cylindrical specimens (2 mm thick x 7 mm diameter) of each composite resin were obtained by curing using the LCU for 40 s. Light energy transmission through the composite was calculated (n=10). The Knoop hardness number for each surface was recorded as the mean of 3 indentations. The difference in Knoop hardness between the top and bottom (DKH) of the same specimen was calculated (n=10). The irradiance of light that passed through Filtek P90 (272 mW/cm2) was not significantly greater than that the passed through Heliomolar (271 mW/cm2). The DKH of Filtek P90 (25%) was significantly higher than that of Heliomolar (12%). There was a greater degree of subsurface polymerization of the methacrylate-based composite compared to the silorane-based composite.

scholarly journals Perubahan Warna Resin Komposit pada Perendaman Larutan Cuka (Asam Asetat) dan Jeruk Nipis (Citrus arantifolia)

e-GIGI ◽  
2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Evica F.L Makasenda ◽  
Dinar A. Wicaksono ◽  
Johanna A. Khoman
Keyword(s):  
Acetic Acid ◽  
Composite Resin ◽  
Acetic Acid Solution ◽  
Composite Resins ◽  
Oral Diseases ◽  
Microsoft Excel ◽  
Lime Juice ◽  
Group Design ◽  
Alternative Materials ◽  
Composite Resin Restoration

Abstract: In this globalization era, Indonesian people especially in Sulawesi Utara are aware of oral health. Their awareness is related to oral diseases as well as aesthetics. Good aesthetics can be achieved by using several methods inter alia composite resin restoration. However, this composite resin undergoes discoloration in the mouth. To overcome the discoloration of the composite resin, alternative materials like acetic acid and lime that can remove the colored substances adhered on the composite resin are introduced. This study was aimed to determine the discoloration of composite resin immersed in acetic solution and in fresh lime juice. This was a true experimental study with a pretest and posttest group design. This study was conducted in 5 days. Daily observation at the same time was perormed by using spectrophotometer to all samples. Data were processed with Microsoft excel and presented in tables. The results showed that based on the spectrophotometer measurement, the composite resins’ color immersed in carbonate solution changed (became brighter) after immersion in acetic solution (from 0.72 to 1.52) and in lime juice (from 0.68 to 1.48). Conclusion: The color of discolored composite resins immersed in acetic acid solution and fresh lime juice became brighter.Keywords: composite resin, discoloration, acetic solution, lime. Abstrak: Pada era globalisasi saat ini, masyarakat Indonesia khususnya di Sulawesi Utara mulai sadar akan kesehatan gigi dan mulut. Kesadaran masyarakat tersebut tidak hanya mengenai penyakit gigi dan mulut, melainkan juga masalah estetik gigi. Estetik yang baik dapat dilakukan dengan banyak cara, salah satunya tindakan penumpatan dengan menggunakan resin komposit. Resin komposit memiliki kecenderungan berubah warna pada saat digunakan di rongga mulut. Perubahan warna menjadi penyebab diperlukannya penggantian bahan tumpatan (resin komposit). Untuk menghemat biaya terdapat alternatif lain seperti asam cuka (asam asetat) dan jeruk nipis yang dapat mengangkat zat-zat warna yang menempel pada resin komposit. Penelitian ini bertujuan untuk mengetahui perubahan warna resin komposit yang direndam dalam larutan cuka dan perasan jeruk nipis. Jenis penelitian ialah eksperimental semu dengan pretest and posttest group design. Penelitian dilakukan selama 5 hari dan dilakukan pengamatan setiap harinya pada jam yang sama dengan menggunakan alat spektrofotometer untuk sampel larutan cuka dan sampel jeruk nipis. Data hasil penelitian diolah menggunakan program komputer microsoft excel dan disajikan dalam bentuk tabel. Hasil penelitian menunjukkan adanya peningkatan warna resin komposit yang direndam dalam larutan karbonasi selanjutnya direndam dalam larutan cuka dari 0,72 menjadi 1,52 dan dalam jeruk nipis dari 0,68 menjadi 1,48. Simpulan: Terdapat perubahan warna lebih cerah pada resin komposit yang direndam pada larutan cuka dan jeruk nipis.Kata kunci: Resin komposit, perubahan warna, larutan cuka, jeruk nipis

scholarly journals Impact of Fast High-Intensity versus Conventional Light-Curing Protocol on Selected Properties of Dental Composites

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1381
Author(s):  
Sufyan Garoushi ◽  
Lippo Lassila ◽  
Pekka K. Vallittu
Keyword(s):  
High Intensity ◽  
Composite Resin ◽  
Light Transmission ◽  
Wear Test ◽  
Composite Resins ◽  
Shrinkage Stress ◽  
Ftir Spectrometry ◽  
Double Bond Conversion ◽  
Light Curing ◽  
Chewing Simulator

To study the influence of fast high-intensity (3-s) and conventional (20-s) light curing protocols on certain physical properties including light-transmission and surface wear of two nano-hybrid composite resins (Tetric PowerFill and Essentia U) specifically designed for both curing protocols. According to ISO standards, the following properties were investigated: flexural properties, fracture toughness and water sorption/solubility. FTIR-spectrometry was used to calculate the double bond conversion (DC%). A wear test using a chewing simulator was performed with 15,000 chewing cycles. A tensilometer was used to measure the shrinkage stress. Light transmission through various thicknesses (1, 2, 3 and 4 mm) of composite resins was quantified. The Vickers indenter was utilized for evaluating surface microhardness (VH) at the top and the bottom sides. Scanning electron microscopy was utilized to investigate the microstructure of each composite resin. The light curing protocol did not show a significant (p > 0.05) effect on the mechanical properties of tested composite resins and differences were material-dependent. Shrinkage stress, DC% and VH of both composite resins significantly increased with the conventional 20 s light curing protocol (p < 0.05). Light curing conventional composite resin with the fast high-intensity (3-s) curing protocol resulted in inferior results for some important material properties.

scholarly journals Low shrinkage composite resins and occlusal matrix technique: association for direct extensive resin restoration

2018 ◽  
Vol 32 (4) ◽  
pp. 213
Author(s):  
Leonardo Fernandes da Cunha ◽  
Samantha Schaffer Pugsley Baratto ◽  
Carla Castiglia Gonzaga ◽  
Gisele Maria Correr
Keyword(s):  
Clinical Application ◽  
Composite Resin ◽  
Acrylic Resin ◽  
Composite Resins ◽  
Resin System ◽  
Technical Approach ◽  
Bonding System ◽  
Composite Resin Restoration ◽  
Composite Resin Restorations ◽  
Correct Technique

INTRODUCTION: Ensuring adequate occlusal contacts and anatomy shape and form is always a challenge when placing extensive direct posterior composite resin restorations. The use of a correct technique, such as, an occlusal matrix can reproduce occlusal morphology more precisely. Additionally, recently, silorane-based or bulk fill composite resin present low shrinkage and were specifically designed for restoring posterior teeth.CASE REPORT: This report presents the clinical application of a low shrinkage composite resin system with a preoperative occlusal matrix in extensive composite resin restoration of a molar with hypomineralization. Acrylic resin was applied over the waxed tooth to copy the anatomic details. Cavity was prepared and bonding system was applied. Definitive layer in the occlusal matrix was applied and stabilized in position. Once curing was complete, occlusal matrix and resin excess were removed using a surgical blade.CONCLUSION: The application of these materials with occlusal matrix can provide a simpler technical approach, saving time and improving esthetic results.

scholarly journals Direct Composite Resin Restoration of Anterior Maxillary Teeth and Esthetic Smile Design: A Case Report and Esthetic Smile Design: A Case Report

2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Christina Widya Nugrohowati ◽  
◽  
Wignyo Hadriyanto ◽  
Tunjung Nugraheni ◽  
◽  
...  
Keyword(s):  
Case Report ◽  
Male Patient ◽  
Composite Resin ◽  
Dental Treatment ◽  
Treatment Plan ◽  
Well Being ◽  
Composite Resins ◽  
Minimally Invasive Dentistry ◽  
Anterior Teeth ◽  
Composite Resin Restoration

Dental esthetic complex involves more than one caries with malformed shape and malposition. Dental trauma most commonly affects maxillary anterior teeth, and subsequently affects the esthetics, functions, and psychological well-being of the individual. Composite resins have become an integral part of contemporary restorative and minimally invasive dentistry. Objective: To summarize the successful use of direct composite resin restoration in the management of a 29-year old male patient. Case Report: A 29-year old male patient presenting with multiple secondary caries and crown fractures in the anterior maxillary teeth, resulting in an unaesthetic smile. Comprehensive esthetic dental treatment was carried out. The patient was highly satisfied with the results even after eleven months of follow-up. Conclusion: restorative success with composite resins, the dental treatment plan should be carefully executed with attention to factors such as dental convexities and contours, re‑establishment of function, and esthetics. Smile design should always be a multifactorial decision-making process that allows the clinician to treat patients with an individualized and interdisciplinary approach.

scholarly journals Restoring the natural smile with minimal intervention

2016 ◽  
Vol 31 (1) ◽  
pp. 31
Author(s):  
Fernando Pinheiro Fialho ◽  
Leily Macedo Firoozmand
Keyword(s):  
Composite Resin ◽  
Color Change ◽  
Dental Materials ◽  
Clinical History ◽  
Composite Resins ◽  
Degree Of Saturation ◽  
Dental Tissue ◽  
Minimal Intervention ◽  
Restorative Treatment ◽  
Composite Resin Restoration

Objective: Depending on the degree of saturation and time that pigments have been in the dental tissue, teeth with severe color change may have a poor prognosis for bleaching treatment.Case Report: In the reported case, after a careful clinical history and evaluation of clinical case a conservative treatment with composite resin restoration was carried out on superior central incisor with severe darkening. Direct composite resins with different opacity and translucency in association with resin pigments and a conservative technique were used guaranteeing a minimal intervention and giving a natural aspect to the tooth. The use of pigments made possible less wear of dental structure for insertion of the composite resin, mimetizing the restored tooth with the corresponding teeth.Conclusion: It was concluded that in some cases where indirect restorations would be indicated, when different kinds of dental materials and techniques are applied, direct restorative treatment would be a great option for esthetic restorations.

scholarly journals Benefit of Glycerine on Surface Hardness of Hybrid & Nanofill Resin Composite

2021 ◽  
Vol 11 (1) ◽  
pp. 28
Author(s):  
Ferriza Tri Mardianti ◽  
Sukaton Sukaton ◽  
Galih Sampoerno
Keyword(s):  
Free Radicals ◽  
Composite Resin ◽  
Resin Composite ◽  
Surface Hardness ◽  
Composite Resins ◽  
Polymerization Process ◽  
Tooth Structure ◽  
Significant Difference ◽  
Light Curing ◽  
Composite Resin Restorations

Background: Composite resins restoration is a treatment for tooth structure loss due to pathological conditions. Longevity of composite resins restoration can be affected by surface hardness restoration. Glycerin can increase surface hardness restoration with inhibit bond oxygen and free radicals on polymerization composite resins. Purpose: Analyze the increase surface hardness composite resins restoration after glycerin application before light-curing composite resins. Review(s): Of the six journals included in this literature review, five journals reported significant differences because of the obstacles in the polymerization process of the composite resin when composite contact with light-curing will activate the photoinitiator to produce highly reactive free radicals, free radicals will break the double chain carbon bonds of monomers and form single bonds of free radicals with monomers. Bonding of free radicals with monomers will produce polymeric bonds (degree of conversion) which affects the level of surface hardness of the filling. While one journal noted no significant difference in the surface hardness of composite resin after glycerin application. Conclusion: The use of glycerin before light-curing can increase the surface hardness composite resin restorations.

scholarly journals Restoring the natural smile with minimal intervention

2016 ◽  
Vol 31 (1) ◽  
pp. 31
Author(s):  
Fernando Pinheiro Fialho ◽  
Leily Macedo Firoozmand
Keyword(s):  
Composite Resin ◽  
Color Change ◽  
Dental Materials ◽  
Clinical History ◽  
Composite Resins ◽  
Degree Of Saturation ◽  
Dental Tissue ◽  
Minimal Intervention ◽  
Restorative Treatment ◽  
Composite Resin Restoration

Objective: Depending on the degree of saturation and time that pigments have been in the dental tissue, teeth with severe color change may have a poor prognosis for bleaching treatment.Case Report: In the reported case, after a careful clinical history and evaluation of clinical case a conservative treatment with composite resin restoration was carried out on superior central incisor with severe darkening. Direct composite resins with different opacity and translucency in association with resin pigments and a conservative technique were used guaranteeing a minimal intervention and giving a natural aspect to the tooth. The use of pigments made possible less wear of dental structure for insertion of the composite resin, mimetizing the restored tooth with the corresponding teeth.Conclusion: It was concluded that in some cases where indirect restorations would be indicated, when different kinds of dental materials and techniques are applied, direct restorative treatment would be a great option for esthetic restorations.

Effect of layer thickness on residual monomer release in polymerization of bulk-fill composites

2021 ◽  
pp. 096739112199958
Author(s):  
Vahti Kılıç ◽  
Feridun Hurmuzlu ◽  
Yılmaz Ugur ◽  
Suzan Cangul
Keyword(s):  
Stainless Steel ◽  
Layer Thickness ◽  
Composite Resin ◽  
Ethanol Solution ◽  
Composite Resins ◽  
Residual Monomer ◽  
Steel Mold ◽  
Nanohybrid Composite ◽  
Composite Samples

The aim of the present study was to investigate and compare the quantity of residual monomers leached from the bulk-fill composites with different compositions polymerized at varying layer thickness. Three bulk-fill (X-tra-fil, Beautifil Bulk Restorative, Fill-Up) and a nanohybrid composite (Filtek Z550) were used for the study. The composite resin samples were prepared with a stainless steel mold. For each composite, two groups were constructed. The samples in the first group were prepared using the 2 + 2 mm layering technique. In the second group, the composite samples were applied as a 4 mm-thick one layer and polymerized. Then, each composite samples were kept in a 75% ethanol solution and residual monomers released from composite resins were analyzed with an HPLC device after 24hour and 1 month. The data were analyzed using Kruskal-Wallis and Mann-Whitney U tests. Except the Fill-Up, all of residual monomer elution from the bulk-fill composites was significantly affected by the layer thickness (p < 0.05). The greatest monomer release was detected at 1 month after polymerization as a single 4 mm layer for Beautifil Bulk Restorative. Fill-Up composite showed similar residual monomer release in polymerization at different layer thicknesses compared to other composite resins. In the 2 + 2 mm layering technique, the least monomer elution was detected in the Filtek Z550 composite group. While Bis-GMA was the most released monomer in X-tra fil composite, UDMA was the most released monomer in all other composite resins. During polymerization of the bulk-fill composite, the layer thickness of the composite applied may affect the amount of residual monomers released from the composite resins. Conventional composites may release less monomer than bulk-fill composites when used with layering.

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