The Thickness and Opacity of Aesthetic Materials Influence the Restoration of Discolored Teeth

2021 ◽  
Author(s):  
I Durães ◽  
A Cavalcanti ◽  
P Mathias
Keyword(s):  
Composite Resin ◽  
Lithium Disilicate ◽  
Composite Resins ◽  
Resin Cement ◽  
Color Variation ◽  
Color Measurement ◽  
Restorative Material ◽  
Good Ability ◽  
Final Color

SUMMARY Objectives: This study aimed to evaluate the influence of thickness and opacity on the ability of composite resin and ceramic veneer restorations to mask discolored teeth. Methods: Ninety veneers were made of lithium disilicate ceramic, shades BL1 and 0 (IPS e.max Press, Ivoclar Vivadent), and 60 were made of composite resin, shade BL-L (IPS Empress Direct, Ivoclar Vivadent). The veneers measured 4 mm in width x 4 mm in length and had a thickness of 0.7, 1.0, or 1.2 mm. One hundred and fifty human premolars were selected to obtain 150 dental fragments with the following dimensions: 4 mm x 4 mm x 3 mm (width x length x thickness). The fragments were discolored, submitted to color measurement and randomly assigned to 15 groups (n=10) according to the type and opacity of the restorative material (IPS e.max Press: high translucency [HT], low translucency [LT], and medium opacity [MO]; IPS Empress Direct: dentin and enamel) and thickness of the veneers (0.7, 1.0, and 1.2 mm). After cementation of the ceramic or composite resin veneers using a translucent resin cement (RelyX veneer, 3M), a final color measurement was taken from each specimen and the total color variation (ΔE) was calculated by subtracting the initial and the final color measurement. The final lightness (L*) of the restored dental fragments was also calculated. Results: The highest ΔE values were observed for the LT and MO ceramic groups, followed by dentin composite resin. Regarding the different thicknesses of ceramic veneers, every 1.2-mm–thick group had higher values of ΔE, considering their respective opacities (p<0.05). The highest lightness values were found for the LT and MO ceramic veneers (thickness of 1.2 mm). Dentin-shade composite resins showed similar lightness values in all groups. Conclusion: The best thickness/opacity combinations for masking discolored dental substrates were LT and MO ceramic veneers with 1.2-mm thickness. Dentin-shade composite resin veneers with a thickness of 0.7–1.0 mm showed good ability to mask discolored dental substrates.

scholarly journals THE COMPARISON OF RESIN-BASED COMPOSITES PHYSICAL PROPERTIES BETWEEN BULK-FILL TECHNIQUE AND INCREMENTAL TECHNIQUE

2021 ◽  
Vol 6 (1) ◽  
pp. 85
Author(s):  
Rahmi Khairani Aulia
Keyword(s):  
Physical Properties ◽  
Composite Resin ◽  
Color Stability ◽  
Composite Resins ◽  
Shrinkage Stress ◽  
Restorative Material ◽  
Polymerization Shrinkage ◽  
Advantages And Disadvantages ◽  
Restoration Technique ◽  
Restoration Failure

ABSTRACT:Composite resins are currently the most popular restorative material in dentistry. This is due to good aesthetics and maximum conservation ability. Behind these advantages, there are disbenefits of composite resin materials, such as polymerization shrinkage, which can lead to restoration failure. Various attempts have been investigated to reduce the shrinkage incidence of composite resins, one of which is the technique of placing the restorative material into the cavity. The restoration filling technique is recognized as a significant factor in shrinkage stress. By using a special filling technique, the polymerization shrinkage damage stress can be reduced. There are several techniques in performing composite resin fillings, including bulk and incremental techniques. These techniques have their respective advantages and disadvantages. The aim of this literature review was to compare the physical properties of composite resin restorations with bulk filling and incremental techniques. Physical properties that being studied include polymerization shrinkage, stress shrinkage, degree of conversion, bonding strength, water resorption, color stability, and temperature increase. Comparing the two techniques, composite resin with incremental filling technique has superior physical properties compared to bulk technique. From the comparison of the two techniques, the composite resin with incremental filling technique has superior physical properties compared to the bulk technique, especially in higher conversion which causes lower shrinkage stress. This situation makes the incremental technique provide better bond strength, water resorption, color stability, and lower temperature rise.Keywords: Bulk, Composite Resin, Incremental,  Physical Properties, Restoration, Restoration Technique

scholarly journals Wear Characteristics of Dental Ceramic CAD/CAM Materials Opposing Various Dental Composite Resins

Materials ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 1839 ◽  
Author(s):  
Bora Gwon ◽  
Eun-Bin Bae ◽  
Jin-Ju Lee ◽  
Won-Tak Cho ◽  
Hyun-Young Bae ◽  
...  
Keyword(s):  
Weight Loss ◽  
Composite Resin ◽  
Lithium Disilicate ◽  
Composite Resins ◽  
Dental Composite ◽  
Dental Ceramics ◽  
Wear Properties ◽  
Dental Ceramic ◽  
Dental Composite Resins ◽  
Cad Cam

The aim of this study was to evaluate the wear properties of opposed dental ceramic restorative CAD/CAM materials and several posterior direct restorative composite resins. Three kinds of dental ceramics CAD/CAM materials (monolithic zirconia, lithium disilicate, leucite) and four dental composite resins—that is, MI Gracefil, Gradia Direct P, Estelite Σ Quick, and Filtek Supreme Ultra—were used in this study. For each of the 12 groups (three ceramics × four composite resins), five each of a canine-shaped ceramic specimen and a cuboidal shape opposing composite resin were prepared. All of the specimens were tested in a thermomechanical loading machine (50 N, 100,000 cycles, 5/55 °C). Wear losses of ceramic specimens and composite resin specimens were evaluated using a three-dimensional profiling system and an electronic scale, respectively. Statistical analyses were performed using the Kruskal–Wallis test and Mann–Whitney U test with Bonferroni’s correction. Zirconia showed significantly less volumetric loss than lithium disilicate or leucite regardless of composite resin type (p > 0.05/3 = 0.017), and that Estelite Σ Quick showed significantly more weight loss than Filtek Supreme Ultra, MI Gracefil, or Gradia Direct P regardless of ceramic type (p > 0.05/6 = 0.083). Zirconia showed less volumetric loss than lithium disilicate or leucite. Some composite resins opposing ceramics showed considerable weight loss.

The Effect of Screw Color and Technique to Fill Access Hole on the Final Color of Screw-Retained Implant Crowns

2011 ◽  
Vol 37 (6) ◽  
pp. 673-679 ◽  
Author(s):  
Murat Kurt ◽  
Çağrı Ural ◽  
Tolga Kulunk ◽  
Ayşe Fatma Şanal ◽  
Ayça Erkoçak
Keyword(s):  
Composite Resin ◽  
Color Measurement ◽  
Background Color ◽  
Metal Mold ◽  
Access Hole ◽  
Color Composite ◽  
Composite Disk ◽  
Made In ◽  
Final Color

The purpose of this study was to investigate the effect of screw color and thickness of the composite on the final implant color. Gray and golden-colored titanium specimens were used as 2 different backgrounds. Composite disks were made in different thicknesses. Titanium and composite disk samples were placed into a metal mold as in the test groups for color measurement. The background color did not affect the final color. Composite resin thickness affected the final color.

Influence of the color of composite resin foundation and luting cement on the final color of lithium disilicate ceramic systems

2017 ◽  
Vol 117 (1) ◽  
pp. 138-143 ◽  
Author(s):  
Doğu Ömür Dede ◽  
Onur Sahin ◽  
Oğuz Süleyman Özdemir ◽  
Burak Yilmaz ◽  
Ersan Celik ◽  
...  
Keyword(s):  
Composite Resin ◽  
Lithium Disilicate ◽  
Luting Cement ◽  
Final Color

Scanning electron microscopy evaluation of heat cured composite resin after surface preparation to enhance bond strength

1993 ◽  
Vol 51 ◽  
pp. 462-463
Author(s):  
Glen M. Imamura ◽  
John W. Reinhardt ◽  
Jorge Perdigao
Keyword(s):  
Bond Strength ◽  
Elevated Temperatures ◽  
Composite Resin ◽  
Surface Preparation ◽  
Composite Resins ◽  
Resin Cement ◽  
Hybrid Resin ◽  
Low Viscosity ◽  
Luting Cement

Tooth shaded composite resin is frequently used as a direct restorative material in the oral cavity. However, during setting it undergoes a volumetric shrinkage which can result in leakage around margins of the restoration. Indirect techniques avoid intraoral shrinkage by fabricating and curing the composite at elevated temperatures outside of the mouth. Higher curing temperatures also improve physical properties in vitro. The completed restoration is then cemented into the prepared cavity with a low viscosity composite resin cement. This study evaluated the effect of varied surface preparation and chemical conditioning on the bond strength of two different indirect heat cured composite resins to a composite resin luting cement.Well and disk specimens of a microfilled resin (Concept, Williams), groups 1-7, and a minifilled hybrid resin (Herculite-XRV-Lab, Kerr), groups 8-14, were fabricated and cured at 250° C and 85 psi pressure. Each resin set was randomly divided into 7 groups of 10 specimens.

scholarly journals O desafio do restabelecimento de um sorriso antiestético por meio de prótese fixa metal-free

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Caroline de Freitas Jorge ◽  
Sandro Basso Bitencourt ◽  
Letícia Cerri Mazza ◽  
Marcio Campaner ◽  
Juliana Lujan Brunetto ◽  
...  
Keyword(s):  
Color Stability ◽  
Lithium Disilicate ◽  
Degree Of Conversion ◽  
Resin Cement ◽  
Resin Composites ◽  
Resin Cements ◽  
Luting Cements ◽  
Metal Free ◽  
Final Color

Para alcançar a estética em dentes anteriores deve-se ter conhecimento de diversas técnicas e principalmente fazer a escolha correta dos materiais. As cerâmicas odontológicas estão cada vez mais presentes nas restaurações, visto que possuem ótimas propriedades ópticas e mecânicas. Assim, o objetivo deste estudo foi proporcionar a estética em dentes anteriores com diferentes subtratos através de uma prótese fixa metal-free. Paciente do gênero masculino, 38 anos, procurou atendimento queixando-se da estética do seu sorriso. No exame clínico foi observada uma coroa total metalocerâmica no elemento 21 e facetas de resina composta nos elementos 11,12 e 22, todas com estética insatisfatória. O dente 21 apresentava um núcleo metálico fundido adequado e os dentes 12 e 22 com tratamentos endodônticos. Foi proposta a instalação de pinos de fibra de vidro nos dentes 12 e 22. Além, da confecção de coroas totais metais-free em dissilicato de lítio nos quatro incisivos superiores com o sistema e-max ceram. O resultado final estético e funcional foi aprovado pelo paciente e pelos profissionais envolvidos.Descritores: Estética Dentária; Cerâmica; Reabilitação Bucal.ReferênciasOkida RC, De Moura AP, Franco LM, Salomão FM, Rahal S, Machado LS, Okida DSS. A utilização do DSD (Digital Smile Design) para a otimização da estética dental. Rev Odontol Araçatuba 2017;38(3):9-14.Sabatini C. Color stability behavior of methacrylate-based resin composites polymerized with light-emitting diodes and quartz-tungsten-halogen. Oper Dent. 2015;40(3):71-81.Wang   X,  Huyang   G,  Palagummi   SV,  Liu  X, Skrtic D, Beauchamp C et al. High performance dental resin composites withhydrolytically stable monomers. Dent Mater. 2018;34(2):228-37.Yazici AR, Celik C, Dayangaç B, Ozgünaltay G. The effect of curing units and staining solutions on the color stability of resin composites. Oper Dent. 2007; 32(6):616-22.Aguiar EMG, Rodrigues RB, Lopes CCA, Silveira Júnior CD, Soares CJ, Novais VR. Diferentes sistemas cerâmicos na reabilitação oral: relato de caso clínico. Rev Odontol Bras Central. 2016;25(72):31-6.Mazaro JVQ, Zavanelli AC, Pellizzer EP, Verri FR, Falcón-Antennucci RM. Considerações clínicas para a restauração da região anterior com facetas laminadas. Rev Odontol Araçatuba. 2009;30(1):51-4.Vichi A, Louca C, Corciolani G, Ferrari M. Color related to ceramic and zirconia restorations: a review. Dent Mater. 2011;27(1):97-108.Rossato DM, Saade EG, Saad JRC, Porto-Neto ST. Coroas estéticas anteriores em cerâmica metal-free: relato de caso clínico. Rev Sul-Bras Odontol. 2010;7(4):494-98.Lanza MDS, Andreeta MRB, Pegoraro TA, Pegoraro LF, Carvalho RM. Influence of curing protocol and ceramic composition on the degree of conversion of resin cement. J Appl Oral Sci. 2017;25(6):700-7.Soares PFB, Siqueira JM, Carvalho VF, Bicalho AA, Soares CJ. Contenção interdentária empregando fibra de vidro e resina composta: Relato de caso e acompanhamento de 14 anos. Rev Odontol Bras Central. 2016;25(73):80-3.Martinez-Insua A, da Silva L, Rilo B, Santana U. Comparison of the fracture resistances of pulpless teeth restored with a cast post and core or carbon-fiber post with a composite core. J Prosthet Dent. 1998;80(5):527-32.Rocha IJPB, Silva LDR, de Santa Maria SL, Oliveira DP, Porfírio Z. Análise de dois métodos de desinfecção de condutos radiculares após preparo para pinos: proposta de protocolo protético: estudo in vitro. Rev Odontol UNESP. 2017;46(4):189-95.Dede DÖ, Ceylan G, Yilmaz B. Effect of brand and shade of resin cements on the final color of lithium disilicate ceramic. J Prosthet Dent. 2017;117(4):539-44.Lopes Cde C, Rodrigues RB, Silva AL, Simamoto Júnior PC, Soares CJ, Novais VR. Degree of conversion and mechanical properties of resin cements cured through different all-ceramic systems. Braz Dent J. 2015;26(5):484-89.Martins FV, Vasques WF, Fonseca EM. How the variations of the thickness in ceramic restorations of lithium disilicate and the use of different photopolymerizers influence the degree of conversion of the resin cements: a systematic review and meta‐analysis. J Prosthodont. 2019;28(1):e395-403.Turp V, Turkoglu P, Sen D. Influence of monolithic lithium disilicate and zirconia thickness on polymerization efficiency of dual‐cure resin cements. J Esthet Restor Dent. 2018;30(4):360-68.Tavarez RR, Gonçalves LM, Dias AP, Dias AC, Malheiros AS, Silva AC. An harmonic smile resulted from the use of ceramic prosthesis with zirconia structure: a case report. J Int Oral Health. 2014;6(3):90-2.Vaz EC, Vaz MM, de Torres ÉM, de Souza JB, Barata TDJE, Lopes LG. Resin cement: correspondence with try in paste and influence on the immediate final color of veneers. J Prosthodont. 2019;28(1):e74-81.Ladha K, Verma M. Conventional and contemporary luting cements: an overview. J Indian Prosthodont Soc. 2010;10(2):79-88.

scholarly journals The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins

2019 ◽  
Vol 22 (1) ◽  
pp. Process
Author(s):  
Rodrigo Máximo Araújo ◽  
Elisangela Costa Lemes ◽  
Rubens Ferri Pachito ◽  
Fernanda Alves Feitosa
Keyword(s):  
Repeated Measures ◽  
Composite Resin ◽  
Color Stability ◽  
Composite Resins ◽  
Color Variation ◽  
The Other ◽  
Color Measurements ◽  
Initial Color ◽  
The Impact ◽  
At Home

Objective: This study compared different composites for color stability after exposure to at home and in-office bleaching gels. Material and Methods: Composite resin specimens (6mm diameterx2mm thickness) were manufactured according to the following groups (n=20): RC- Conventional; BF-Bulk Fill; RF-Flow; BFF-Bulk-Fill Flow. The surfaces were stained with coffee solution for 36hrs. A spectrophotometer was used to record the initial color (L*a*b*). Half of the specimens from each group underwent bleaching with 35% hydrogen peroxide (in-office) in three 45-minute applications. New color measurements were performed after 7, 14 and 21 days. The other half of the specimens underwent bleaching with 22% carbamide peroxide (at home) in 14 1-hour applications. Further color measurements were performed after 7 and 14 hours. For comparison between the color coordinates in different periods, ANOVA for repeated measures was applied (α=5%). The color variation (ΔE) was calculated for each group. Results: For in-office bleaching, there were no significant differences between the periods b* coordinate of the RF group, and for L* and b* coordinates of the BFF group. For at home bleaching the groups BF and BFF showed no differences for the L* coordinate. For the other coordinates, there was difference between the initial periods and after 14 days. The ΔE variation presented higher values for the at home bleaching groups. For both whiteners the bulk-fill resins presented the greatest color variations. Conclusions: Bulk Fill resins do not guarantee greater color stability than the other composite resins tested, including conventional flow resin. The conventional composite resin showed the lower ΔE.

scholarly journals Esthetic and Function Improvement by Direct Composite Resins and Biomimetic Concept

2014 ◽  
Vol 15 (5) ◽  
pp. 654-658 ◽  
Author(s):  
Marco Aurelio Paschoal ◽  
Lourdes Santos-Pinto ◽  
Mauricio Nagle ◽  
Weber Adad Ricci
Keyword(s):  
Composite Resin ◽  
Composite Resins ◽  
Restorative Material ◽  
Case Description ◽  
Conservative Approach ◽  
Dental Tissues ◽  
Anterior Teeth ◽  
Hard Dental Tissues ◽  
And Function

ABSTRACT Aim This case report describe a resin layering restorative technique based on biomimetic concept to improve esthetics in a patient with dental defects that affected both enamel and dentin in anterior teeth. Background Severe structural defect in anterior teeth compromises esthetics and it is a high challenge to become the defect imperceptible after the restoration. Case description A clinical sequence of applying different composite resin layers allowed the reproduction of the interaction between hard dental tissues and the restorative material. Conclusion This technique achieved a satisfactory final esthetic outcome, preserving sound teeth structure and at same time, improved the quality of life of the young patient. Clinical significance The utilization of the biomimetic concept to increase a disharmonic smile with dental defects is based in a conservative approach, which reached a satisfactory and esthetic outcome. How to cite this article Paschoal MA, Santos-Pinto L, Nagle M, Ricci WA. Esthetic and Function Improvement by Direct Composite Resins and Biomimetic Concept. J Contemp Dent Pract 2014;15(5):654-658.

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