1
|
Calixto ET, Kelmer VF, Komegae GH, Pacheco RR, Pini N, Sundfeld D. Influence of Varied Silane Commercial Brands and Adhesive Application on Bond Strength and Stability to Lithium Disilicate Glass Ceramic. Oper Dent 2024; 49:325-335. [PMID: 38632867 DOI: 10.2341/23-124-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2023] [Indexed: 04/19/2024]
Abstract
OBJECTIVES This study aimed to evaluate the impact of various commercial silane brands with varied chemical compositions with or without the application of an adhesive layer on the microshear bond strength and durability of a resin luting agent to lithium disilicate glass ceramic. METHODS AND MATERIALS Lithium disilicate glass ceramic discs (EMX, IPS e.max Press, Ivoclar Vivadent) measuring 10 mm in diameter and 3 mm in thickness were fabricated (n=240). Surfaces were etched using 5% hydrofluoric acid and randomly assigned to 10 groups based on the commercial brand of silane used (n=24): [RP] RelyX Ceramic Primer (3M ESPE); [PS] Prosil (FGM); [SA] Silano (Angelus); [SM] Silano (Maquira); [SU] Silane (Ultradent); [GL] GLUMA Ceramic Primer (Kulzer); [CB] Ceramic Bond (VOCO); [MB] Monobond N (Ivoclar Vivadent); [CP] Clearfil Ceramic Primer (Kuraray); and [DE] 2-step silane (Dentsply Sirona). Half of the EMXs (n=12) received a thin adhesive layer (+) after the silane and prior to resin luting agent, while the other half (n=12) did not receive an adhesive layer (-). For the microshear bond strength test (μSBS), four light-cured resin luting agent cylinders (1 mm in diameter) were created on each EMX surface. Half of these specimens were tested after 24 hours, while the other half were stored in deionized water for 6 months. The μSBS test was conducted using a universal testing machine (DL 500, EMIC) at a crosshead speed of 1 mm/min until failure. The obtained data underwent statistical analysis using analysis of variance (ANOVA) and the Tukey test (α=0.05). RESULTS There was significant influence of the silane commercial brand on bond strength. Notably, "universal primers" yielded lower bond strength results compared to "pure" silane solutions. Water storage had a detrimental effect on microshear bond strength for certain silane commercial brands. Additionally, the application of an adhesive layer negatively impacted bond strength results for all silanes. CONCLUSIONS This study confirms the importance of both silane commercial brand and chemical composition in relation to bond strength of resin luting agents to lithium disilicate glass ceramic. Furthermore, the application of an adhesive layer may have an adverse effect on bond stability over time.
Collapse
Affiliation(s)
- E T Calixto
- Emerson Tavares Calixto, DDS, MSc student, Ingá University Center, Uningá, Maningá, PR, Brazil
| | - V F Kelmer
- Vinicius Fernandez Kelmer, DDS student, Ingá University Center, Uningá, Maningá, PR, Brazil
| | - G H Komegae
- Gabriely Hikari Komegae, DDS, MSc student, Ingá University Center, Uningá, Maningá, PR, Brazil
| | - R R Pacheco
- Rafael Rocha Pacheco, DDS, MSc, PhD, associate professor and section director of Dental Materials, Department of Restorative Sciences, The Dental College of Georgia at Augusta University, Augusta, GA, USA
| | - Nip Pini
- Nubia Inocencya Pavesi Pini, DDS, MSc, PhD, adjunct professor, School of Dentistry, Department of Restorative Dentistry and Prosthodontics, Ingá University Center, Uningá, Maningá, PR, Brazil
| | - D Sundfeld
- *Daniel Sundfeld, DDS, MSc, PhD, adjunct professor, Department of Restorative Dentistry and Prosthodontics, Ingá University Center, Uningá, Maningá, PR, Brazil
| |
Collapse
|
2
|
Souza TJSD, Freitas ADS, Ferreira DMTP, Maia LC, Rabello TB. Does the use of preheated restorative resin composite as a luting agent influence the adaptation of fixed dental prostheses? A systematic review. J Prosthet Dent 2024; 131:384-391. [PMID: 35300849 DOI: 10.1016/j.prosdent.2022.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 11/18/2022]
Abstract
STATEMENT OF PROBLEM Although studies have explored the physical and mechanical properties of different composite resins with the preheating technique, evidence that the use of preheated restorative composite resin as a luting agent influences the adaptation of fixed dental prostheses is lacking. PURPOSE The purpose of this systematic review was to answer the question: Does the use of preheated restorative composite resin as a luting agent influence the adaptation of fixed dental prostheses? MATERIAL AND METHODS Seven databases and nonpeer-reviewed literature were searched, without language or year restrictions. Studies directly comparing the adaptation of fixed dental prostheses cemented with preheated restorative composite resin or resin cement were considered eligible for inclusion. Assessment of the risk of bias was based on a 9-item checklist. RESULTS Of 2109 retrieved articles, 4 in vitro studies met the inclusion criteria. Three of them concluded that preheated restorative composite resin produced a greater mismatch than resin cement, and the remaining study reported that composite resin improved the adaptation of fixed dental prostheses. All included studies had a medium risk of bias. The high level of heterogeneity among the studies precluded meta-analysis. CONCLUSIONS The use of preheated restorative composite resin as a luting agent seems to negatively influence the adaptation of fixed dental prostheses. It was not possible to evaluate whether variables such as the formulation of the resin material or its heating time and temperature influence the adaptation of fixed dental prostheses because of the high heterogeneity of the included studies.
Collapse
Affiliation(s)
- Talita Jardim Serra de Souza
- Masters student in Operative Dentistry, Department of Dental Clinic, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Alessandra da Silva Freitas
- Masters student in Operative Dentistry, Department of Dental Clinic, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Daniele Masterson Tavares Pereira Ferreira
- Doctoral student, Health Information and Communication, Institute of Communication and Scientific Information and Technological in Health, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ, Brazil
| | - Lucianne Cople Maia
- Full Professor, Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Tiago Braga Rabello
- Associate Professor, Department of Dental Clinic, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
| |
Collapse
|
3
|
Tabata LF, Hilgert LA, Pereira ALC, Ribeiro APD, Pereira PNR. Microshear bond strength of resin cement to glass-ceramics after intaglio surface staining. J Prosthet Dent 2024; 131:314-319. [PMID: 35300848 DOI: 10.1016/j.prosdent.2021.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 11/29/2022]
Abstract
STATEMENT OF PROBLEM Applying stains to the intaglio surface of computer-aided design and computer-aided manufacturing (CAD-CAM) monolithic ceramic restorations has been proposed as an option to help mask darkened substrates. However, little is known about the effects of this procedure on the adhesion between the resin cement and the ceramic. PURPOSE The purpose of this in vitro study was to evaluate the effect of intaglio surface staining on the microshear bond strength between 2 CAD-CAM ceramics and a resin cement. MATERIAL AND METHODS Lithium disilicate (Gmax) and leucite-reinforced (Gpress) ceramic blocks were sectioned, crystalized when indicated, and polished. They received either none, 1, or 2 layers of ceramic stains and a glaze liquid mixture followed by a firing cycle. The surfaces of groups Gmax0, Gmax1, and Gmax2 were etched with 9% hydrofluoric acid etching (HF) for 20 seconds, and those of groups Gpress0 and Gpress1 were etched for 60 seconds. After rinsing and drying, a ceramic primer was applied and air-dried. Resin cement rods (n=24 per group) were built from a silicone mold. Specimens were stored in distilled water for 24 hours before microshear bond testing. Failure mode was observed under a digital microscope. Data were analyzed by using the Kruskal-Wallis and Mann-Whitney nonparametric tests (α=.05). RESULTS Intaglio staining negatively affected the microshear bond strength for both ceramics. A significant difference was observed between Gmax1 (3.5 ±1.73 MPa) and Gmax2 (3.7 ±2.1 MPa) when compared with Gmax0 (14.2 ±4.4 MPa) and also between GPress0 (25.7 ±5.1 MPa) and Gpress1 (1.8 ±2.7 MPa). No difference was observed between 1 and 2 stain layers for Gmax. Most failures were adhesive for Gmax0, mixed for Gpress, and cohesive within the stain layer for experimental groups. CONCLUSIONS Intaglio surface staining with a stain and glaze mixture caused a significant reduction in bond strength between resin cement and both ceramics tested.
Collapse
Affiliation(s)
- Lucas F Tabata
- Professor, Dentistry Department, School of Health Sciences, University of Brasilia (UnB), Brasilia, Distrito Federal, Brazil.
| | - Leandro A Hilgert
- Professor, Dentistry Department, School of Health Sciences, University of Brasilia (UnB), Brasilia, Distrito Federal, Brazil
| | | | - Ana Paula D Ribeiro
- Professor, Operative Dentistry Department, College of Dentistry, University of Florida, Gainesville, Fla
| | - Patrícia N R Pereira
- Professor, Operative Dentistry Department, College of Dentistry, University of Florida, Gainesville, Fla
| |
Collapse
|
4
|
AlHelal AA. Biomechanical behavior of all-ceramic endocrowns fabricated using CAD/CAM: A systematic review. J Prosthodont Res 2024; 68:50-62. [PMID: 37286503 DOI: 10.2186/jpr.jpr_d_22_00296] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
PURPOSE This study performed a systematic review to assess the biomechanical behavior of all-ceramic endowcrowns fabricated using computer-aided design and computer-aided manufacturing (CAD/CAM) for the restoration of endodontically treated teeth. STUDY SELECTION Three electronic databases (PubMed, Web of Science, and Scopus) were searched by operators specializing in health sciences databases searches to answer the following focused question based on the Population, Intervention, Comparison, Outcome (PICO) format: "Whether all-ceramic CAD/CAM endocrowns (Intervention) used to restore human endodontically treated teeth (Population) exhibit superior fracture resistance (Outcome) compared to non-CAD/CAM all-ceramic or non-ceramic endocrowns (Comparison)." The methodological quality assessment was performed using previously conducted systematic reviews of in vitro studies. The outcomes were expressed as the mean ± the standard deviation (SD). RESULTS Seventeen in vitro studies were included. The materials used in these studies were lithium disilicate glass-ceramic, polymer-infiltrated ceramic, zirconia-reinforced lithium silicate glass-ceramic, resin/hybrid nanoceramics, zirconia-reinforced lithium silicate ceramics, and feldspathic ceramic. The fracture resistance of endocrowns using different ceramics varied as follows: (i) IPS e.max CAD (2863.62 ± 51.47 N), (ii) Vita Enamic (1952 ± 378 N), (iii) Vita Suprinity (1859 ± 588 N), (iv) Cerasmart (1981 ± 169.5 N), (v) LAVA Ultimate (2484 ± 464 N), (vi) Celtra Duo (1618.30 ± 585.00 N), and (vii) Cerec Blocs (236.29 ± 32.12 N). CONCLUSIONS CAD/CAM all-ceramic endocrowns can withstand occlusal forces in the posterior region. All-ceramic endocrowns improve the fracture strength of endodontically treated teeth. Lithium disilicate crowns were commonly and successfully used in the included studies. More in vitro investigations that implement uniformity in material and measurement approaches are required to strengthen the evidence currently available in the literature regarding the durability of all-ceramic endocrowns.
Collapse
Affiliation(s)
- Abdulaziz A AlHelal
- Department of Prosthetic Dental Sciences, King Saud University, College of Dentistry, Riyadh, Saudi Arabia
| |
Collapse
|
5
|
Komine F, Furuchi M, Honda J, Kubochi K, Takata H. Clinical performance of laminate veneers: A review of the literature. J Prosthodont Res 2024:JPR_D_23_00151. [PMID: 38220160 DOI: 10.2186/jpr.jpr_d_23_00151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
PURPOSE This narrative review aimed to survey the clinical outcomes of laminate veneers (LVs), including their survival and success rates. STUDY SELECTION An electronic search of MEDLINE/PubMed, Web of Science, Cochrane Library, and Google Scholar from 2000 to April 2023 was conducted using the keywords "laminate" OR "veneer" OR "porcelain" OR "feldspathic" OR "lithium disilicate" OR "composite resin" OR "zirconia" OR "survival" OR "success." Case reports, case series, reviews, abstracts, in vitro studies, and observational studies were excluded. Five researchers independently evaluated the titles and abstracts of all identified studies. RESULTS A total of 55 studies were identified. None of the studies met the criteria for zirconia LVs. According to the studies in this review, LVs fabricated with feldspathic porcelain, leucite-reinforced glass ceramics (LRG), and lithium disilicate ceramics (LDS) exhibited satisfactory survival and success rates. Furthermore, hydrofluoric acid etching followed by silane priming of the surface of ceramic LVs is necessary for improved clinical outcomes. The extent of dentin exposure significantly decreases the success rate of ceramic LVs. An appropriate adhesive luting process is required to achieve the long-term success of ceramic LVs. Dentin exposure should be minimized or sealed during tooth preparation to achieve a reliable and durable bond between LVs and abutment teeth. CONCLUSIONS Based on this narrative review of the literature, the use of silica-based ceramic feldspathic porcelain, LRG, and LDS is recommended for LVs.
Collapse
Affiliation(s)
- Futoshi Komine
- Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan
| | - Mika Furuchi
- Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry, Tokyo, Japan
| | - Junichi Honda
- Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan
| | - Kei Kubochi
- Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan
| | - Hiroki Takata
- Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan
| |
Collapse
|
6
|
Dos Santos D, Pacheco RR, Komegae GH, da Silva JA, Lima D, Pini N, Sundfeld D. Effects of Hydrofluoric Acid Concentrations, Commercial Brands, and Adhesive Application on the Bond Strength of a Resin Luting Agent to Lithium Disilicate Glass Ceramic. Oper Dent 2023; 48:700-710. [PMID: 37881098 DOI: 10.2341/23-034-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2023] [Indexed: 10/27/2023]
Abstract
OBJECTIVES To evaluate the surface topography/roughness and bond strength of a resin luting agent to a lithium disilicate glass ceramic after etching with different concentrations of hydrofluoric acid (HF) and commercial brands. METHODS For bond strength evaluation, 260 lithium disilicate glass ceramic (EMX) discs were randomly distributed into 13 groups based on concentrations of HF and commercial brands (n=20): 5% and 10%, Lysanda (LY5 and LY10); 5% and 10%, Maquira (MA5 and MA10); 5% and 10%, FGM (FG5 and FG10); 4.8%, Ivoclar Vivadent (IV5); 5% and 10%, PHS do Brasil (PH5 and PH10); 5% and 10%, BM4 (BM5 and BM10); 9%, Ultradent Inc (UL10); and Dentsply (DE10). A further random distribution (n=10) was made based on the application (+) or absence (-) of an adhesive layer. Resin luting agent cylinders (1 mm in diameter) were added on EMX surfaces, light-cured, and stored for 24 hours in deionized water at 37°C. On a universal testing machine (DL 500, EMIC), specimens were submitted to a microshear bond strength test at a crosshead speed of 1 mm/min until failure. A representative etched EMX disc from each group underwent surface topography analysis using field-emission scanning electron microscopy (n=1), and five (n=5) etched EMX discs from each group were tested for surface roughness. Data were statistically analyzed using analysis of variance and Tukey test (α=0.05). RESULTS A less conditioned and smoother surface was observed for 5% HF compared to 10%. Additionally, commercial brands of HF were shown to affect bond strength. When the adhesive layer was not used (-), a 10% concentration promoted higher bond strengths to EMX. However, when adhesive was applied (+), the concentrations of HF and commercial brands had no effect on bond strength results. CONCLUSIONS A 10% concentration of HF results in higher bond strength than a 5% concentration. If an adhesive layer is applied, neither this distinction nor the influence of commercial brands is observed.
Collapse
Affiliation(s)
- Drc Dos Santos
- Diogo Robert Claudino dos Santos, DDS, MSc student, Department of Restorative Dentistry and Prosthodontics, Ingá University Center - UNINGÁ, Maringá, PR, Brazil
| | - R R Pacheco
- Rafael Rocha Pacheco, DDS, MSc, PhD, associate professor, Department of Restorative Sciences, Dental College of Georgia - Augusta University, Augusta, GA, USA
| | - G H Komegae
- Gabriely Hikari Komegae, DDS student, School of Dentistry, Ingá University Center - UNINGÁ, Maringá, PR, Brazil
| | - J A da Silva
- Juliana Andrade da Silva, DDS, MSc, PhD student, Department of Restorative Dentistry, Piracicaba School of Dentistry, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Danl Lima
- Debora Alves Nunes Leite Lima, DDS, MSc, PhD, professor, Department of Restorative Dentistry, Piracicaba School of Dentistry, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Nip Pini
- Nubia Inocêncya Pavesi Pini, DDS, MSc, PhD, adjunct professor, Department of Restorative Dentistry and Prosthodontics, Ingá University Center - UNINGÁ, Maringá, PR, Brazil
| | - D Sundfeld
- *Daniel Sundfeld, DDS, MSc, PhD, adjunct professor, Department of Restorative Dentistry and Prosthodontics, Ingá University Center - UNINGÁ, Maringá, PR, Brazil
| |
Collapse
|
7
|
Maletin A, Knežević MJ, Koprivica DĐ, Veljović T, Puškar T, Milekić B, Ristić I. Dental Resin-Based Luting Materials-Review. Polymers (Basel) 2023; 15:4156. [PMID: 37896400 PMCID: PMC10610675 DOI: 10.3390/polym15204156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
As cementation represents the last stage of the work involved in making various indirect restorations (metal ceramic crowns and bridges, full ceramic crowns and bridges, inlays, onlays, and fiber posts), its quality significantly contributes to the clinical success of the therapy performed. In the last two decades, the demand for ceramic indirect restorations in everyday dental practice has considerably increased primarily due to the growing significance of esthetics among patients, but also as a result of hypersensitivity reactions to dental alloys in some individuals. In this context, it is essential to ensure a permanent and reliable adhesive bond between the indirect restoration and the tooth structure, as this is the key to the success of aesthetic restorations. Resin-based luting materials benefit from excellent optical (aesthetic) and mechanical properties, as well as from providing a strong and durable adhesive bond between the restoration and the tooth. For this reason, resin cements are a reliable choice of material for cementing polycrystalline ceramic restorations. The current dental material market offers a wide range of resin cement with diverse and continually advancing properties. In response, we wish to note that the interest in the properties of resin-based cements among clinicians has existed for many years. Yet, despite extensive research on the subject and the resulting continued improvements in the quality of these materials, there is still no ideal resin-based cement on the market. The manuscript authors were guided by this fact when writing the article content, as the aim was to provide a concise overview of the composition, properties, and current trends, as well as some future guidelines for research in this field that would be beneficial for dental practitioners as well as the scientific community. It is extremely important to provide reliable and succinct information and guidelines for resin luting materials for dental dental practitioners.
Collapse
Affiliation(s)
- Aleksandra Maletin
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.J.K.); (D.Đ.K.); (T.V.); (T.P.); (B.M.)
| | - Milica Jeremić Knežević
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.J.K.); (D.Đ.K.); (T.V.); (T.P.); (B.M.)
| | - Daniela Đurović Koprivica
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.J.K.); (D.Đ.K.); (T.V.); (T.P.); (B.M.)
| | - Tanja Veljović
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.J.K.); (D.Đ.K.); (T.V.); (T.P.); (B.M.)
| | - Tatjana Puškar
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.J.K.); (D.Đ.K.); (T.V.); (T.P.); (B.M.)
| | - Bojana Milekić
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.J.K.); (D.Đ.K.); (T.V.); (T.P.); (B.M.)
| | - Ivan Ristić
- Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia;
| |
Collapse
|
8
|
Deng J, Jin C, Zhu L, Liu L, Huang Y, Zhao P, Gao S. Effects of Different Primers on the Bond Strength to Properly and Excessively Etched Ceramic-coated Zirconia. Oper Dent 2023; 48:552-563. [PMID: 37482890 DOI: 10.2341/22-122-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2023] [Indexed: 07/25/2023]
Abstract
PURPOSE To determine the effects of various primers on the immediate and long-term bond strength of ceramic-coated ultratranslucent zirconia that is properly or excessively etched. METHODS AND MATERIALS Ceramic-coated zirconia plates were etched with 9.5% hydrofluoric acid (HF) for 2 or 5 minutes, after which the surface morphology and elemental composition were examined. The etched specimens were treated with different primers including methacryloyloxydecyl dihydrogen phosphate (MDP)-only containing primer, silane-only containing primer, MDP and silane-containing ceramic primer as well as MDP and silane-containing adhesive system. For surface contact angle and shear bond strength (SBS) data, the difference between groups was evaluated by one-way analysis of variance (ANOVA) and three-way ANOVA factorial analysis, respectively. The statistical significance level of 0.05 was set and the Tukey test and the Dunnett-T3 test were used for post-hoc multiple comparisons. RESULTS Excessive etching (9.5% HF for 5 minutes) led to overconsumption of the glass layer and exposure of zirconia substrate compared to proper etching (9.5% HF for 2 minutes). Among different primers, the surface contact angle of the silane-only containing primer group was the lowest. The silane-only containing primer and MDP and silane-containing ceramic primer produced higher shear bond strength of properly and excessively etched ceramic-coated zirconia, respectively, both before and after thermal aging. CONCLUSIONS The silane-only containing primer and MDP and silane-containing primer can obtain better immediate and long-term shear bond strength for properly and excessively etched ceramic-coated zirconia, respectively.
Collapse
Affiliation(s)
- J Deng
- Jiuhong Deng, postgraduate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - C Jin
- Chunxiao Jin, postgraduate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - L Zhu
- Liqing Zhu, postgraduate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - L Liu
- Liren Liu, postgraduate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - Y Huang
- Yun Huang, postgraduate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - P Zhao
- Peng Zhao, postgraduate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - S Gao
- *Shanshan Gao, DDS, associate professor, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| |
Collapse
|
9
|
Nogueira IDO, Pereira CNDB, Abreu LG, Diniz IMA, Magalhães CSD, Silveira RRD. Do different protocols affect the success rate or bond strength of glass-ceramics repaired with composite resin? A systematic review and meta-analysis. J Prosthet Dent 2023:S0022-3913(23)00432-8. [PMID: 37635007 DOI: 10.1016/j.prosdent.2023.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 08/29/2023]
Abstract
STATEMENT OF PROBLEM Intraoral repair techniques prevent unnecessary replacement of ceramic restorations, thereby increasing the survival rate. However, adhesion between ceramics and the composite resin is challenging and how different protocols influence adhesion is unclear. PURPOSE The purpose of this systematic review and meta-analysis was to analyze the influence of different protocols on repairing glass-ceramic surfaces with composite resins. MATERIAL AND METHODS PubMed, Scopus, ISI Web of Science, and Embase electronic databases were searched to select studies comparing bond strength values or survival rates of glass-ceramic repaired with composite resins using different surface treatment protocols. No publication year or language restriction was applied. Data sets were extracted from all included studies, and the mean differences calculated. A 95% confidence interval was calculated by using the random effect model (Rev Man 5.4). RESULTS The search identified 5037 studies, and 165 were assessed for eligibility. Finally, 123 in vitro studies were included in the systematic review and 48 in the meta-analysis. Considering different glass-ceramics, bond strength tests, and aged or not aged specimens, 37 meta-analyses found the effect of repair protocols: only adhesive, silane plus adhesive alone or preceded by hydrofluoric (HF) acid, airborne-particle abrasion (APA) with Al2O3 particles, silica-coated APA (SCAPA), diamond rotary instrument (DRI), and laser irradiation (LI). CONCLUSIONS For feldspathic porcelain, HF acid, APA, SCAPA, or DRI improved the repair micromechanical retention; applying silane is essential to HF-conditioned surfaces but the use of adhesive is optional when silane is applied. Results for leucite and lithium disilicate were inconclusive in terms of suggesting a treatment other than HF acid plus silane and adhesive applications.
Collapse
Affiliation(s)
- Iara de O Nogueira
- Department of Restorative Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Carolina N de B Pereira
- Department of Restorative Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Lucas G Abreu
- Department of Child and Adolescent Oral Health, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil..
| | - Ivana M A Diniz
- Department of Restorative Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Cláudia S de Magalhães
- Department of Restorative Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo R da Silveira
- Department of Restorative Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
10
|
Alhamdan EM. Influence of Contemporary Photoactivated Disinfection on the Mechanical Properties and Antimicrobial Activity of PMMA Denture Base: A Systematic Review and Meta Analysis. Photodiagnosis Photodyn Ther 2023; 42:103523. [PMID: 36958538 DOI: 10.1016/j.pdpdt.2023.103523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 03/25/2023]
Abstract
PURPOSE The present study aimed to perform a systematic review and meta-analysis to investigate the effectiveness of the contemporary photoactivated disinfection methods on the mechanical features and/or antimicrobial activity of polymethyl methacrylate (PMMA) dentures bases. METHODS THE FOCUSED RESEARCH QUESTION WAS: : "What is the effect of contemporary photoactivated disinfection methods as compared to conventional disinfection protocols on the mechanical features and/or antimicrobial activity of PMMA dentures bases?". An electronic literature search was carried out by the author and a senior librarian specialized in health sciences on Web of Science, PubMed, and Scopus. In vitro investigations evaluating the antimicrobial and/or mechanical effects of photoactivated disinfectants as compared to conventional chemical disinfectants on the microbes formed on PMMA denture bases were included. Meta-analysis was performed for calculating the standard mean difference (SMD) with a 95% confidence interval. RESULTS Four out of eight studies concluded that photoactivated disinfectants, including riboflavin-mediated photodynamic therapy (PDT), hematoporphyrin-mediated PDT, poly-L-glycolic acid loaded with methylene blue, Erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser, erbium-doped yttrium-aluminum-garnet (Er:YAG) laser, and chitosan-mediated PDT, demonstrated a significant reduction in colony-forming unit per milliliter (CFU/mL) of exposed viable colonies of Escherichia coli (E. coli), Streptococcus mutans (S. mutans), Staphylococcus aureus (S. aureus), and Candida albicans (C. albicans) comparable to the conventionally used chemical disinfectants of PMMA denture bases. Contrarily, two studies concluded that the PMMA denture base colonized with C. albicans and disinfected with conventional chemical disinfectants showed the greatest anti-fungal efficaciousness. All the included studies concluded that the application of photoactivated disinfectants does not negatively impact the mechanical features of the PMMA denture bases colonized with microbes including E. coli, S. mutans, S. aureus, and C. albicans. The meta-analysis revealed statistically significant reduction in C. albicans counts (CFU/mL [Log10]) (p < 0.00001) and improvement in the flexural strength (p = 0.0002) of PMMA-based denture base after the application of conventional disinfectants, while a statistically significant improvement in the fracture strength of PMMA-based denture base was observed after the application of photoactivated disinfectants (p = 0.03). CONCLUSION According to the systematic review (qualitative synthesis), photoactivated disinfectants demonstrated comparable mechanical features and antimicrobial activity of PMMA dentures bases to conventional chemical disinfectants suggesting their potential to be utilized as an alternative to conventional chemical disinfectants. However, the meta-analysis (quantitative synthesis) revealed that the application of conventional disinfectants demonstrated better outcomes related to antimicrobial activity and flexural strength of PMMA-based denture based.
Collapse
Affiliation(s)
- Eman M Alhamdan
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, P.O.Box 21069, Riyadh 11475, Saudi Arabia.
| |
Collapse
|
11
|
Delgado AH, Sauro S, Lima AF, Loguercio AD, Della Bona A, Mazzoni A, Collares FM, Staxrud F, Ferracane J, Tsoi J, Amato J, Neuhaus KW, Ceballos L, Breschi L, Hannig M, Melo MA, Özcan M, Scotti N, Opdam N, Yamaguchi S, Paris S, Turkun LS, Doméjean S, Rosa V, Palin W, Schwendicke F. RoBDEMAT: A risk of bias tool and guideline to support reporting of pre-clinical dental materials research and assessment of systematic reviews. J Dent 2022; 127:104350. [PMID: 36341980 DOI: 10.1016/j.jdent.2022.104350] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/10/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES To develop a risk of bias tool for pre-clinical dental materials research studies that aims to support reporting of future investigations and improve assessment in systematic reviews. METHODS A four-stage process following EQUATOR network recommendations was followed, which included project launch, literature review, Delphi process and the tool finalization. With the support of the European Federation of Conservative Dentistry (EFCD) and the Dental Materials Group of the International Association for Dental Research (DMG-IADR), a total of 26 expert stakeholders were included in the development and Delphi vote of the initial proposal. The proposal was built using data gathered from the literature review stage. During this stage, recent systematic reviews featuring dental materials research, and risk of bias tools found in the literature were comprehensively scanned for bias sources. The experts thus reached a consensus for the items, domains and judgement related to the tool, allowing a detailed guide for each item and corresponding signalling questions. RESULTS The tool features nine items in total, spread between 4 domains, pertaining to the following types of bias: bias related to planning and allocation (D1), specimen preparation (D2), outcome assessment (D3) and data treatment and outcome reporting (D4). RoBDEMAT, as presented, features signalling questions and a guide that can be used for RoB judgement. Its use as a checklist is preferred over a final summary score. CONCLUSION RoBDEMAT is the first risk of bias tool for pre-clinical dental materials research, supported and developed by a broad group of expert stakeholders in the field, validating its future use. CLINICAL SIGNIFICANCE This new tool will contribute the study field by improving the scientific quality and rigour of dental materials research studies and their systematic reviews. Such studies are the foundation and support of future clinical research and evidence-based decisions.
Collapse
Affiliation(s)
- António Hs Delgado
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Monte de Caparica, Almada 2829-511 Portugal; Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, UK.
| | - Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Department of Dentistry, Cardenal Herrera-CEU University, CEU Universities, Valencia, Spain
| | - Adriano F Lima
- Dental Research Division, Paulista University, Sao Paulo, Brazil
| | - Alessandro D Loguercio
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, PR, Brazil
| | - Alvaro Della Bona
- Postgraduate Program in Dentistry, School of Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Annalisa Mazzoni
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna-Alma Mater Studiorum, Bologna, Italy
| | | | - Frode Staxrud
- Nordic Institute for Dental Materials (NIOM), Oslo, Norway
| | - Jack Ferracane
- Department of Restorative Dentistry, Oregon Health & Science University, 2730 S. Moody Avenue Portland, OR 97201, Oregon, USA
| | - James Tsoi
- Dental Materials Science, Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
| | - Julia Amato
- Department of Periodontology, Endodontology and Cariology, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Klaus W Neuhaus
- Department of Periodontology, Endodontology and Cariology, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland; Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Laura Ceballos
- Nursing and Stomatology Department, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Madrid, Spain
| | - Lorenzo Breschi
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna-Alma Mater Studiorum, Bologna, Italy
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, 66421 Homburg, Germany
| | - Mary Anne Melo
- Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, 650 West Baltimore St, Baltimore, MD 21201, USA
| | - Mutlu Özcan
- University of Zürich, Division of Dental Biomaterials, Center for Oral Medicine, Clinic for Reconstructive Dentistry, Zürich, Switzerland
| | - Nicola Scotti
- Department of Surgical Sciences, Dental School Lingotto, University of Turin, Turin, Italy
| | - Niek Opdam
- Radboud University Medical Centre, Department of Dentistry, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Satoshi Yamaguchi
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Suita, Osaka 565-0871, Japan
| | - Sebastian Paris
- Department of Operative, Preventive and Paediatric Dentistry, Center of Oral Health Sciences, Charité - Universitätsmedizin Berlin, Germany
| | - Lezize Sebnem Turkun
- Department of Restorative Dentistry, Ege University School of Dentistry, 35100 Bornova/Izmir Turkey
| | - Sophie Doméjean
- CHU Estaing, Service d'Odontologie, Clermont-Ferrand, France; Université Clermont Auvergne, UFR d'Odontologie, Clermont-Ferrand, France; Centre de Recherche en Odontologie Clinique EA 4847, Clermont-Ferrand, France
| | - Vinicius Rosa
- Faculty of Dentistry, National University of Singapore, Singapore; ORCHIDS: Oral Care Health Innovations and Designs Singapore, National University of Singapore, Singapore
| | - William Palin
- Dental and Biomaterials Sciences, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, UK
| | - Falk Schwendicke
- Department of Operative and Preventive Dentistry, Charité - Universitätsmedizin Berlin, Germany, Aßmannshauser Str. 4-6, 14199 Berlin, German
| |
Collapse
|
12
|
Avram LT, Galațanu SV, Opriș C, Pop C, Jivănescu A. Effect of Different Etching Times with Hydrofluoric Acid on the Bond Strength of CAD/CAM Ceramic Material. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7071. [PMID: 36295139 PMCID: PMC9605186 DOI: 10.3390/ma15207071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
The objective of this study was to evaluate the influence of hydrofluoric acid (HF) and conditioning time on the micro-shear bond strength (µSBS) between dual-cure resin cement and glass-ceramic materials, such as lithium disilicate ceramic (IPS e.max CAD, Ivoclar Vivadent) (EX) and leucite-reinforced ceramic (IPS Empress CAD, Ivoclar Vivadent) (EP), and also a hybrid ceramic (Vita Enamic, Vita Zahnfabrik) (VE). Eighteen sections with 1 mm thickness were cut from each CAD/CAM material and randomly divided into three groups, according to the surface etching time (30 s, 60 s, 90 s). The surface treatment was performed using 9.5% HF acid gel, then resin cement was applied on the prepared ceramic plates and light cured. µSBS values between resin cement and the ceramic material were measured with a universal testing machine at a crosshead speed of 0.5 mm/min until the failure occurred. The fractured surfaces of specimens were microscopically evaluated, and failure modes were classified as: adhesive between resin cement and ceramic, cohesive within ceramic or cement and mixed failure. Surface roughness of etched samples was examined using a scanning electron microscope. Obtained data were statistically analysed using one-way analysis of variance (ANOVA) and Bonferroni post hoc test with a level of significance α = 0.05. The results of the statistical methods applied indicate that µSBS mean difference for leucite-reinforced ceramic (EP) was statistically significant (p < 0.05). However, µSBS values for hybrid ceramic (VE) and lithium disilicate ceramic (EX) were not affected, from a statistical point of view, by the conditioning time (p > 0.05).
Collapse
Affiliation(s)
- Liane Tabitha Avram
- Department of Prosthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy “Victor Babeș” Timișoara, Revoluţiei din 1989 Bd. No. 9, 300070 Timișoara, Romania
| | - Sergiu-Valentin Galațanu
- Department of Mechanics and Strength of Materials, Politehnica University of Timisoara, Mihai Viteazu Bd., 300222 Timisoara, Romania
| | - Carmen Opriș
- Department of Materials and Manufacturing Engineering, Politehnica University of Timisoara, Mihai Viteazu Bd., Timis, 300222 Timisoara, Romania
| | - Cristian Pop
- Department of Mechatronics, Politehnica University of Timisoara, Mihai Viteazu Bd., 300222 Timisoara, Romania
| | - Anca Jivănescu
- Department of Prosthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy “Victor Babeș” Timișoara, Revoluţiei din 1989 Bd. No. 9, 300070 Timișoara, Romania
- TADERP Research Center, University of Medicine and Pharmacy “Victor Babeș” Timișoara, Revoluţiei din 1989 Bd. No. 9, 300070 Timișoara, Romania
| |
Collapse
|
13
|
Ferreira MC, Alessandretti R, Pereira GKR, Bacchi A, Maroli A, Gomes ÉA, Spazzin AO. Do preheated composite resin or adhesive resin layer strengthen the feldspar ceramic? J Prosthet Dent 2022:S0022-3913(22)00510-8. [PMID: 36202633 DOI: 10.1016/j.prosdent.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/06/2022]
Abstract
STATEMENT OF PROBLEM Preheated composite resin and adhesive coating have been recommended as luting agents for ceramic veneers; however, information about the mechanical behavior of feldspathic porcelain veneers after using these methods is still limited. PURPOSE The purpose of this in vitro study was to evaluate the influence of the use of preheated composite resin or an adhesive resin layer on the strengthening of a feldspathic porcelain. MATERIAL AND METHODS Feldspathic porcelain disks were fabricated (N=210), etched (10% hydrofluoric acid for 90 seconds), and bonded according to resin-based luting agents (30 per group) for the biaxial flexural strength tests: photopolymerized resin cement, flowable composite resin, preheated composite resin, with or without previous adhesive coating. Characteristic strength and Weibull modulus were calculated. The viscosity of the luting agents was measured by using isothermal analyses. Finite element analysis simulated the flexural test. Fractographic and bonded interfaces were observed. RESULTS The use of preheated composite resin led to the lowest stress levels in the feldspathic porcelain veneers. However, it did not increase the ceramic strengthening compared with other luting agents, as higher values were observed with flowable composite resin (P<.05). The use of an adhesive resin layer had no significant effect on ceramic strengthening when associated with preheated composite resin or resin cement (P>.05). Preheated composite resin presented the highest viscosity and led to incomplete filling of the porcelain surface irregularities. Failures originated on the ceramic surface subjected to tensile stress and were typically associated with pores at the ceramic-luting agent interface. CONCLUSIONS The use of preheated composite resin or an adhesive resin layer did not have a positive effect on strengthening feldspathic porcelain.
Collapse
Affiliation(s)
- Michele C Ferreira
- Professor, School of Dentistry, Meridional Faculty, ATITUS, Passo Fundo, Rio Grande do Sul, Brazil; Post-Graduate student Program in Dentistry, School of Dentistry, University of Ribeirão Preto, UNAERP, Ribeirão Preto, São Paulo, Brazil
| | - Rodrigo Alessandretti
- Professor, MSciD Post-Graduate Program in Dentistry, School of Dentistry, Meridional Faculty - IMED, Passo Fundo, Rio Grande do Sul, Brazil
| | - Gabriel K R Pereira
- Professor, MSciD-PhD Post-Graduate Programs in Oral Science, Prosthodontics Units, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Ataís Bacchi
- Professor, MSciD Post-Graduate Program in Dentistry, Paulo Picanço School of Dentistry - FACPP, Fortaleza, Ceará, Brazil
| | - Angélica Maroli
- Professor, School of Dentistry, Meridional Faculty - ATITUS, Passo Fundo, Rio Grande do Sul, Brazil
| | - Érica A Gomes
- Professor, MsciD Post-Graduate Program in Dentistry, School of Dentistry, University of Ribeirão Preto - UNAERP, Ribeirão Preto, São Paulo, Brazil
| | - Aloísio O Spazzin
- Professor, MSciD Post-Graduate Program in Dentistry, School of Dentistry, Meridional Faculty - ATITUS, Passo Fundo, Rio Grande do Sul, Brazil.
| |
Collapse
|
14
|
Velho HC, da Rosa LS, Temp RW, Cocco FM, Pereira GKR, May LG, Valandro LF. Adhesive application after ceramic surface treatment is detrimental to load-bearing capacity under fatigue of a lithium disilicate glass-ceramic. J Mech Behav Biomed Mater 2022; 135:105453. [PMID: 36126505 DOI: 10.1016/j.jmbbm.2022.105453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/30/2022] [Accepted: 09/03/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To evaluate whether an adhesive application after surface treatment on a lithium disilicate ceramic (LD) has an influence on its load-bearing capacity under fatigue. METHODS LD discs (Ø= 10 mm; thickness= 1 mm) were allocated into 8 groups (n= 15), considering 3 factors: "ceramic surface treatment" - HF: hydrofluoric acid + universal primer application; or MEP: single-component ceramic primer; "adhesive application" - with or without; and "aging protocol" - baseline: 24 h to 7 days; or aging: 180 days of storage + 25,000 thermal cycles. The LD discs were adhesively bonded to glass fiber-reinforced epoxy resin discs (Ø= 10 mm; thickness= 2 mm) and stored according to the condition and each group. Cyclic fatigue testing (initial load= 100 N; step size= 100 N until600 N and after step size= 25 N to failure; 10,000 cycles/step; 20 Hz frequency) was performed. Fractographic and adhesive interface analyzes were also performed. The collected data were then analyzed by Kaplan Meier and Mantel-Cox tests and One-way ANOVA. RESULTS The adhesive application in the baseline condition had no influence on the load-bearing capacity under fatigue when the HF surface treatment was performed, however, adhesive application for the MEP treatment led to worse results than without it. The adhesive application in the aged condition showed worse fatigue outcomes for both treatments. All specimens presented radial cracks. MEP treatment followed by adhesive application presented the thickest luting layer. CONCLUSION The adhesive application after surface treatments of a lithium disilicate glass-ceramic is detrimental to its load-bearing capacity under fatigue when adhesively luted onto a supporting substrate.
Collapse
Affiliation(s)
- Helder Callegaro Velho
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| | - Lucas Saldanha da Rosa
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| | - Renatta Wrasse Temp
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| | - Fernanda Maidana Cocco
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| | - Gabriel Kalil Rocha Pereira
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| | - Liliana Gressler May
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| | - Luiz Felipe Valandro
- Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
| |
Collapse
|
15
|
Annual review of selected scientific literature: A report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2022; 128:248-330. [PMID: 36096911 DOI: 10.1016/j.prosdent.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 07/15/2022] [Accepted: 07/15/2022] [Indexed: 11/23/2022]
Abstract
The Scientific Investigation Committee of the American Academy of Restorative Dentistry offers this review of the 2021 dental literature in restorative dentistry to inform busy dentists regarding noteworthy scientific and clinical progress over the past year. Each member of the committee brings discipline-specific expertise to coverage of this broad topical area. Specific subject areas addressed, in order of the appearance in this report, include COVID-19 and the dental profession (new); prosthodontics; periodontics, alveolar bone, and peri-implant tissues; implant dentistry; dental materials and therapeutics; occlusion and temporomandibular disorders; sleep-related breathing disorders; oral medicine and oral and maxillofacial surgery; and dental caries and cariology. The authors focused their efforts on reporting information likely to influence daily dental treatment decisions with an emphasis on future trends in dentistry. With the tremendous volume of dentistry and related literature being published daily, this review cannot possibly be comprehensive. Rather, its purpose is to update interested readers and provide important resource material for those interested in pursuing greater details on their own. It remains our intent to assist colleagues in negotiating the extensive volume of important information being published annually. It is our hope that readers find this work useful in successfully managing the patients and dental problems they encounter.
Collapse
|
16
|
The Effect of Sandblasting on Bond Strength of Soft Liners to Denture Base Resins: A Systematic Review and Meta-Analysis of In Vitro Studies. Int J Dent 2021; 2021:5674155. [PMID: 34976062 PMCID: PMC8716237 DOI: 10.1155/2021/5674155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/18/2021] [Accepted: 11/23/2021] [Indexed: 11/17/2022] Open
Abstract
Objectives This study aimed to evaluate the effect of sandblasting on the bond strength of denture base resin to soft liners. Materials and Methods This report follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. PubMed, Embase, Cochrane, Scopus, and OpenGrey databases were searched for in vitro studies that compared sandblasting with no treatment in terms of the tensile, shear, and peel bond strength of resilient lining materials (acrylic-based or silicone-based) to polymethyl methacrylate denture base resin. Based on the outcome, the analysis was carried out in three groups of tensile, shear, and peel bond strength. Subgroup analysis was done for the effect of size of particles on sandblasting, blasting pressure, and type of soft liner whenever possible. Heterogeneity was evaluated among the studies, and meta-analysis was performed with random effect models (p < .05). Results After screening, 16 articles met the inclusion criteria for meta-analyses. No treatment showed significantly higher tensile (p < 0.001) or peel (p=0.04) bond strength, although shear bond strength of sandblasted resin was significantly better (p=0.008). Results of subgroup analyses of particle size favored the control group in 50 µ Al2O3 particle size (p < 0.001). In analyses of blasting pressure, the control group had significantly better tensile bond strength than specimens with blasting pressure ≤1 bar (p < 0.001) while specimens with blasting pressure beyond 1 bar showed significantly more tensile strength than control group (p=0.03). In silicon-based liners, groups without any surface treatment had significantly higher tensile bond strength (p < 0.001). Conclusion According to the in vitro studies, sandblasting would not lead to significant increase in bond strength of soft liner to the denture base resin.
Collapse
|
17
|
Yuan X, Wang Q, Han F, Chen C, Xie H. Chemical interaction between 10-methacryloyloxydecyl dihydrogen phosphate and methacryloxypropyltrimethoxysilane in one-bottle dental primer and its effect on dentine bonding. J Mech Behav Biomed Mater 2021; 121:104610. [PMID: 34126509 DOI: 10.1016/j.jmbbm.2021.104610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/17/2021] [Accepted: 05/23/2021] [Indexed: 11/30/2022]
Abstract
In the present study, we investigated the chemical interaction between 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) and methacryloxypropyltrimethoxysilane (gamma-MPS) in one-bottle primer solutions and its effect on dentine bonding performance. Solutions containing 10 wt% 10-MDP and/or gamma-MPS at 0, 1, 5, 10, or 15 wt% were prepared, providing 10 experimental groups (labeled MDP/MPSxx or MPSxx, where MDP indicates the presence of 10 wt% MDP and xx is the wt% of gamma-MPS in the solution). Phosphoric-acid-etched dentine blocks were prepared from human molars and conditioned in the solutions before being used to build resin-dentine-bonded specimens, which were subsequently subjected to microtensile bond strength (μTBS) testing after 24-h or six-months water storage. Interfacial nanoleakage was evaluated by SEM observation. All the primer-conditioned samples showed significantly higher initial μTBS values than that of the control group, and six-months water storage significantly lowered the μTBS for all the groups; however, the decreases for MDP/MPS10 and MDP/MPS15 were significantly greater than those for MDP/MPS1 and the control solution. Furthermore, MDP/MPS10 and MDP/MPS15 groups also showed more serious nanoleakage. Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction analyses were used to investigate the chemical affinity between 10-MDP and hydroxyapatite (HAp). In XRD analysis, the intensities of peaks assigned to 10-MDP-calcium salts were lower for the solutions containing gamma-MPS. Overall, the results indicate that the copresence of gamma-MPS (above 10 wt%) and 10-MDP in one-bottle primer solutions inhibit the formation of 10-MDP-calcium salts, leading to increased long-term nanoleakage and decreased bonding durability.
Collapse
Affiliation(s)
- Xiaojun Yuan
- Jiangsu Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, PR China
| | - Qi Wang
- Jiangsu Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, PR China
| | - Fei Han
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, PR China
| | - Chen Chen
- Jiangsu Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, PR China.
| | - Haifeng Xie
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, PR China
| |
Collapse
|
18
|
Rodríguez-Barragué J, Vola-Gelmini J, Skuras-Siedemburg M, Rivera-Gonzaga JA, Cuevas-Suarez CE. Natural antioxidants to restore immediate bond strength to bleached enamel: Systematic review and meta-analysis of in vitro studies. J ESTHET RESTOR DENT 2021; 33:702-712. [PMID: 33973710 DOI: 10.1111/jerd.12743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 02/20/2021] [Accepted: 04/29/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate whether natural antioxidant treatment would enhance the immediate bond strength of dental adhesives to bleached enamel through a systematic review and meta-analysis. MATERIALS AND METHODS Two reviewers performed a literature search up to November 2019 in seven databases. Only in vitro studies that evaluated the effect of the application of natural antioxidants in the bond strength of dental adhesives to bleached enamel were included. Analyses were carried out using RevMan 5.3.5 (The Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen, Denmark). A global analysis was performed with random-effects models at a significance level of p < 0.05. RESULTS Twenty-four studies were included in the meta-analysis. Both in-office (p ˂ 0.001) and at-home (p ˂ 0.001) bleaching reduced the immediate bond strength. When compared to bleached enamel, all antioxidants improved the bond strength, but only grape seed extract/proanthocyanidin and lycopene restored it to the control values (p ˃ 0.05). CONCLUSION In vitro available evidence suggests that the use of natural antioxidants can be beneficial when performing immediate resin-based restorations after bleaching, however, these results should be taken with caution since they are based on medium and high risk of bias studies; low bias studies are needed to draw relevant conclusions. CLINICAL SIGNIFICANCE Despite the lack of clinical evidence, the present study confirms the benefits of applying natural antioxidant agents to enhance the in vitro bond strength when performing immediate esthetic restorations after bleaching. Since certain antioxidant agents proved more effective than others, clinical investigations may be focused on the ones that withhold the most promising results. The application of natural antioxidants after bleaching may enable immediate esthetic restorations to be performed.
Collapse
Affiliation(s)
- Juana Rodríguez-Barragué
- Department of Operative Dentistry, School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - Joanna Vola-Gelmini
- Department of Operative Dentistry, School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - Marcel Skuras-Siedemburg
- Department of Technical Operative Dentistry, School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - José Alejandro Rivera-Gonzaga
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo Sate, Pachuca, Hgo, Mexico
| | - Carlos Enrique Cuevas-Suarez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo Sate, Pachuca, Hgo, Mexico
| |
Collapse
|
19
|
Which surface treatment promotes higher bond strength for the repair of resin nanoceramics and polymer-infiltrated ceramics? A systematic review and meta-analysis. J Prosthet Dent 2021; 128:139-149. [PMID: 33573835 DOI: 10.1016/j.prosdent.2020.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 01/22/2023]
Abstract
STATEMENT OF PROBLEM Which surface treatment provides the optimal bond strength (BS) for the repair of resin nanoceramics (RNCs) and polymer-infiltrated ceramics (PICs) is unclear. PURPOSE The purpose of this systematic review and meta-analysis of in vitro studies was to determine the best surface treatment protocols for the repair of PICs and RNCs. MATERIAL AND METHODS The PubMed, Scopus, and Web of Science electronic databases were searched to select in vitro studies in English up to March 2020. Studies with fewer than 5 specimens, those that did not evaluate the BS of PICs or RNCs, and those with aging for fewer than 30 days and 5000 cycles were excluded. Data sets were extracted, and the mean differences were analyzed by using a systematic review software program. RESULTS Among 284 potentially eligible studies, 21 were selected for full-text analysis, and 9 were included in the systematic review, of which 6 were used in the meta-analysis. The meta-analyses were performed for each treatment surface versus their respective control group and their combinations according to material: RNCs and PICs. For RNCs, airborne-particle abrasion with aluminum oxide (Al2O3) treatment was statistically higher than tribochemical silica airborne-particle abrasion (CoJet) (P=.02, I2=90%) and that in the hydrofluoric acid (HF) (P<.001, I2=0%) groups and was statistically similar to diamond rotary instrument grinding (P=.40, I2=54%). For PICs, the treatment with hydrofluoric acid (HF) was statistically significantly higher than with CoJet (P=.03, I2=62%) and airborne-particle abrasion with Al2O3 (P<.001, I2=98%). CONCLUSIONS The best surface treatment protocol for repair varied according to the restorative material. HF followed by silanization is suggested for PICs, and airborne-particle abrasion with Al2O3 or preparation with a diamond rotary instrument for RNCs.
Collapse
|