Clinical performance and chemical-physical properties of bulk fill composites resin —a systematic review and meta-analysis

Boaro, Letícia Cristina Cidreira; Lopes, Diana Pereira; Souza, Andréia Santos Caetano de; Nakano, Ellea Lie; Perez, Mirko Dennys Ayala; Pfeifer, Carmem S.; Gonçalves, Flávio de Oliveira

doi:10.1016/j.dental.2019.07.007

Cited by 116 publications

(90 citation statements)

References 152 publications

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“…This meta-analysis showed that there were no significant differences between conventional and bulk-fill resin compounds in terms of the type of restoration, the type of tooth restored, and the technique used. The results of this systematic review and meta-analysis are similar to those of Veloso et al [ 53 ] and Boaro et al [ 54 ]. Both studies reported that the clinical performance of conventional and bulk-fill resin compounds in direct posterior tooth restorations was similar, within a follow-up period of 12 to 72 months and up to 10 years, respectively.…”

Section: Discussionsupporting

confidence: 89%

“…Both studies reported that the clinical performance of conventional and bulk-fill resin compounds in direct posterior tooth restorations was similar, within a follow-up period of 12 to 72 months and up to 10 years, respectively. These clinical findings might be explained by corresponding mechanical properties, i.e., the shrinkage stress (for regular consistency materials), flexural strength, and fracture strength [ 54 ]. However, some of the chemical–physical properties (shrinkage, polymerization stress, cup deflection, and microhardness) of bulk-fill resin composites were found to be superior when compared with conventional composites, regardless of the viscosity or application technique [ 54 ].…”

Section: Discussionmentioning

confidence: 99%

“…These clinical findings might be explained by corresponding mechanical properties, i.e., the shrinkage stress (for regular consistency materials), flexural strength, and fracture strength [ 54 ]. However, some of the chemical–physical properties (shrinkage, polymerization stress, cup deflection, and microhardness) of bulk-fill resin composites were found to be superior when compared with conventional composites, regardless of the viscosity or application technique [ 54 ]. As for the degree of conversion of bulk-fill materials with flowable consistency (used in two-step bulk technique), this was similar to conventional composite resins with thicknesses of up to 2 mm and greater than conventional composites with thicknesses greater than 2 mm [ 54 ].…”

Section: Discussionmentioning

confidence: 99%

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Clinical Effectiveness of Bulk-Fill and Conventional Resin Composite Restorations: Systematic Review and Meta-Analysis

et al. 2020

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The objective of this systematic review and meta-analysis was to determine the clinical effectiveness of bulk-fill and conventional resin in composite restorations. A bibliographic search was carried out until May 2020, in the biomedical databases Pubmed/MEDLINE, EMBASE, Scopus, CENTRAL and Web of Science. The study selection criteria were: randomized clinical trials, in English, with no time limit, with a follow-up greater than or equal to 6 months and that reported the clinical effects (absence of fractures, absence of discoloration or marginal staining, adequate adaptation marginal, absence of post-operative sensitivity, absence of secondary caries, adequate color stability and translucency, proper surface texture, proper anatomical form, adequate tooth integrity without wear, adequate restoration integrity, proper occlusion, absence of inflammation and adequate point of contact) of restorations made with conventional and bulk resins. The risk of bias of the study was analyzed using the Cochrane Manual of Systematic Reviews of Interventions. Sixteen articles were eligible and included in the study. The results indicated that there is no difference between restorations with conventional and bulk resins for the type of restoration, type of tooth restored and restoration technique used. However, further properly designed clinical studies are required in order to reach a better conclusion.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Clinical Effectiveness of Bulk-Fill and Conventional Resin Composite Restorations: Systematic Review and Meta-Analysis

et al. 2020

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“…The third review included 11 clinical trials comparing marginal adaptation as the outcome. No difference was found between the marginal adaptation of composites placed in bulk as compared to those placed in increments 74 …”

Section: Resultsmentioning

confidence: 84%

Probing the hierarchy of evidence to identify the best strategy for placing class II dental composite restorations using current materials

Ferracane

Lawson

2020

J Esthet Restor Dent

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Objective The objective of this review is to present a synopsis of the existing clinical and in vitro evidence regarding placement of direct class II restorations with dental composites of varying viscosities, focusing on the marginal integrity achievable. Overview The literature on class II composites placed with various techniques was searched through PubMed, Scopus, and the citations of identified articles, focusing on aspects related to adaptation and clinical performance. Studies comparing layering of conventional composite to layering with a flowable liner, including the “snow plow technique,” use of warmed composite, flowable bulk‐fill liners with a conventional composite capping layer, and bulk‐fill restorative in a single or incremental fill (including placement with sonic energy and dual‐curing) Conclusions In vitro and clinical evidence does not support any one specific method or material type for achieving optimal performance when restoring class II cavity preparations with current dental composites. Clinical significance Although there are many available placement methods and types of composite materials on the market for use in class II restorations, the reasonable success presented in the clinical and laboratory literature for the various approaches suggests that the most important factor for achieving success is likely careful and proper placement and light‐curing technique, independent of the approach.

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“…Companies claim that the level of shrinkage for these products is comparable to that of composites placed in an incremental way. Although some long‐term evidence on the effectiveness of these composites already exists (), only limited clinical evidence was available at the time the new material was released into the market. Furthermore, the evidence was recently considered inconsistent regarding the determination of the depth of cure ().…”

Section: The Dental Industry and The Report Of Evidence Supporting Nementioning

confidence: 99%

The (in)adequacy of translational research in dentistry

Faggion

2020

European J Oral Sciences

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Translational research, as the name suggests, “translates” research findings into clinical practice to improve the health of human beings. The translational process builds on information from experiments conducted at a basic level (i.e., in vitro and/or animal studies) and progresses over experimental human studies for efficacy, efficiency, and safety to implementation. Therefore, all steps in the process should be based on studies conducted with the highest methodological quality possible in order to provide accurate and useful information. Furthermore, the systematic dissemination of new procedures/techniques should be done only when they have been proven to be effective and safe. This focus article describes examples of new techniques/procedures in dentistry that have not resulted from an adequate translational research process since the initial evidence was published. These procedures are generally characterised by lack of good evidence, particularly on their potential harms, and lack of adequate chronological order, regarding the translational research process (i.e., human research being conducted before animal research). Even so, they seem to be widely disseminated, and their promotion involves a wide range of sources, including social media. Some guidance is proposed to improve the quality of the translational research process in dentistry, as well as the level of awareness of all parties involved with the use of this research: clinicians, researchers, and patients. By improving the translational research process, optimization of the application and use of these resources, with less risk to the patients, is expected.

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Clinical performance and chemical-physical properties of bulk fill composites resin —a systematic review and meta-analysis

Cited by 116 publications

References 152 publications

Clinical Effectiveness of Bulk-Fill and Conventional Resin Composite Restorations: Systematic Review and Meta-Analysis

Clinical Effectiveness of Bulk-Fill and Conventional Resin Composite Restorations: Systematic Review and Meta-Analysis

Probing the hierarchy of evidence to identify the best strategy for placing class II dental composite restorations using current materials

The (in)adequacy of translational research in dentistry

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