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Tribst JPM, Dal Piva AMDO, Muris J, Kleverlaan CJ, Feilzer AJ. One-piece endodontic crown fixed partial denture: Is it possible? J Prosthet Dent 2024; 131:1118-1125. [PMID: 36801103 DOI: 10.1016/j.prosdent.2023.01.014] [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: 10/28/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 02/18/2023]
Abstract
STATEMENT OF PROBLEM Whether the replacement of a missing tooth with a fixed partial denture supported by an endodontically treated abutment could be improved with 1-piece endodontic crowns is unclear. PURPOSE The purpose of the study was to evaluate the mechanical behavior of a fixed partial denture (FPD) according to the preparation of the abutment teeth (1-piece endodontic crown or complete crown) in terms of stress magnitude in the prosthesis, cement layer, and tooth. MATERIAL AND METHODS A posterior model with 2 abutment teeth (first molar and first premolar) was modeled with a computer-aided design (CAD) software program for conducting a 3-dimensional finite element analysis (FEA). To replace the missing second premolar, the model was replicated in different possible FPDs according to the abutment preparation design (complete crown [Conventional], 2 1-piece endodontic crowns [EC]) or a 1-piece endodontic crown on one of the abutment teeth (first molar [ECM] and first premolar [ECP]) for a total of 4 designs. All FPDs were in lithium disilicate. The solids were imported to an analysis software program (ANSYS 19.2) in the standard for the exchange of product data (STEP) format. The mechanical properties were considered isotropic and the materials to show linear elastic and homogeneous behavior. An axial load (300 N) was applied at the occlusal surface of the pontic. The results were evaluated by colorimetric stress maps of von Mises and maximum principal stress in the prosthesis, maximum principal stress and shear stresses on the cement layer, and maximum principal stress in the abutment teeth. RESULTS The von Mises stresses revealed that all FPD designs behaved similarly and that, considering the maximum principal stress criteria, the pontic was the most stressed region. For the cement layer, the combined designs presented an intermediate behavior, with the ECM more suitable to reducing the stress peak. The conventional preparation allowed less stress concentration in both teeth, and higher stress concentration in the premolar was observed with a 1-piece endodontic crown. The 1-piece endodontic crown decreased the risk of fracture failure. Considering the risk of debonding failure for the prosthesis, the 1-piece endodontic crown preparation was only able to decrease the failure risk when the EC design was used and when only the shear stress was considered. CONCLUSIONS Performing 1-piece endodontic crown preparations to retain a 3-unit lithium disilicate FPD is an alternative to conventional complete crown preparations.
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Affiliation(s)
- João Paulo M Tribst
- Assistant Professor, Department of Oral Regenerative Medicine, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, Amsterdam, the Netherlands
| | - Amanda Maria de O Dal Piva
- Assistant Professor, Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, Amsterdam, the Netherlands.
| | - Joris Muris
- Assistant Professor, Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, Amsterdam, the Netherlands
| | - Cornelis J Kleverlaan
- Professor, Department of Dental Materials Science, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam & Vrije Universiteit, Amsterdam, the Netherlands
| | - Albert J Feilzer
- Professor, Department of Oral Regenerative Medicine, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam & Vrije Universiteit, Amsterdam, the Netherlands
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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.
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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;
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Lee JY, Lee JC, Hong SY, Kim EG, Lee EJ, Woo RS, Baik TK, Oh SP, Yoo HI, Song DY. A new brain-cutting device and ultraviolet resin-mounted human brain slices as a teaching adjunct for neuroanatomy education. J Anat 2022; 241:1477-1488. [PMID: 36073345 PMCID: PMC9644958 DOI: 10.1111/joa.13757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 07/22/2022] [Accepted: 08/16/2022] [Indexed: 11/29/2022] Open
Abstract
Although the level of neuroscience research is rapidly developing with the introduction of new technologies, the method of neuroanatomy education remains at the traditional level and requires improvement to meet the needs of educators and trainees. We developed a new three‐dimensional (3D) printed device (human brain‐cutting mold, HBCM) for creating human brain slices; moreover, we demonstrated a simple method for creating semi‐permanent ultraviolet (UV) resin‐mounted brain slice specimens for neuroanatomy education. We obtained brain slices of uniform thickness (3 mm) through the HBCM; the resultant brain slices were optimal for assessing morphological details of the human brain. Furthermore, we used an agar‐embedding method for brain‐slicing with the HBCM, which minimized geometrical distortions of the brain slices. Also, we prepared semi‐permanent brain serial specimens using an acrylic brain slice frame and UV‐curable resin, which was highly compatible with moist bio‐specimens. During UV resin curing, neither air bubble formation nor color change occurred. The resultant UV resin‐mounted brain slices produced definite coronal sections with high transparency and morphological accuracy. We also performed 3D modeling by stacking brain slice images that differentiated the cortical area and nine subcortical regions via manual segmentation. This method could be a reliable alternative for displaying high‐quality human brain slices and would be helpful for students and trainee to understand anatomical orientation from 2D images to 3D structures. Also, this may present an innovative approach for preparing and preserving coronal sections of the normal or pathological human brain.
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Affiliation(s)
- Jin-Yu Lee
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Je-Chan Lee
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Sung-Young Hong
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Eu-Gene Kim
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Eun-Jin Lee
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Ran-Sook Woo
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Tai-Kyoung Baik
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Sang-Pil Oh
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Hong-Il Yoo
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Dae-Yong Song
- Department of Anatomy and Neurosciences, Eulji University School of Medicine, Daejeon, Republic of Korea
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Korkmaz IH, Kul E. Investigation of the Type of Angled Abutment for Anterior Maxillary Implants: A Finite Element Analysis. J Prosthodont 2021; 31:689-696. [PMID: 34859942 DOI: 10.1111/jopr.13462] [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] [Accepted: 11/25/2021] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The optimal abutment material and design for an angled implant-abutment connection in the esthetic zone is unclear. The purpose of this finite element analysis (FEA) study was to compare different abutment models by evaluating the stress values in the implant components and strain values on the simulated bone around an anterior maxillary implant with different angled abutment models and loading conditions. MATERIALS AND METHODS One Ø3.5×12-mm implant was placed in 3D FEA models representing the anterior left lateral segment of the maxilla. Three different contemporary implant models were created with 17° or 25° angled abutments (Ti base abutment, zirconia abutment, and titanium abutment) and 3D-modeled. The implant abutment model was an angled Ti base abutment (TIB), an angled zirconia abutment (ZIR), or an angled titanium abutment (TIT). Vertical and oblique loads of 100 N for the central incisors were applied as boundary conditions to the cingulum area and incisal area in a nonlinear FEA. RESULTS The TIB model resulted in reduced stress conditions. According to the von Mises stresses occurring on the screw, abutment, crown, and implant, especially under oblique loads, the TIB model was exposed to less stress than the ZIR or TIT models. Strain values in simulated cortical and trabecular bones were obtained lower in the TIB model. CONCLUSIONS When a standard implant was placed in the esthetic zone at an increased angle, the implants, abutments, and screws had more unfavorable stress levels; therefore, using a Ti-base abutment may reduce stress. The amount of contact surface of the implant with the simulated cortical bone is also an important factor affecting stress and strain.
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Affiliation(s)
- Ismail Hakki Korkmaz
- Department of Mechanical Engineering, Faculty of Engineering and Architecture, Erzurum Technical University, Erzurum, Turkey
| | - Esra Kul
- Department of Prosthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
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de Matos JDM, Lopes GDRS, Nakano LJN, Ramos NDC, Vasconcelos JELD, Bottino MA, Tribst JPM. Biomechanical evaluation of 3-unit fixed partial dentures on monotype and two-piece zirconia dental implants. Comput Methods Biomech Biomed Engin 2021; 25:239-246. [PMID: 34559574 DOI: 10.1080/10255842.2021.1946798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study aimed to evaluate the biomechanical behavior, stress distributions and bone microstrain of fixed partial dentures (FPD) with ceramic abutments supported on monotype zirconia implants, titanium implants and two-piece zirconia implants, using finite element analysis. A three-dimensional model of the jaw was simulated containing 1.0 mm thick cortical bone and cancellous bone tissue. A FPD and implant models (4.1 x 10 mm) were modeled containing a cement-retained implant abutment. These models were replicated in three groups with similar geometries: Titanium Implant and Zirconia Abutment (Ti-Zr); Zirconia Implant and Zirconia Abutment (Zr-Zr) and Monotype Zirconia Implant (Zr-S). An axial load of 300 N was applied to the center of the first premolar. The microstrain (με) and the Von-Mises stress (MPa) were assumed as failures criteria. For the three groups, a higher stress concentration was observed in the region of FPD connectors. The Ti-Zr group showed a higher stress concentration in the prosthesis and implant when compared to the other groups. However, the smaller elastic modulus of the titanium implant, in relation to the zirconia, provided a lower stress in the abutment and in the prosthetic screw. The monotype implant system allowed a more homogeneous stress distribution and its strain were predominantly located in the cervical region of the peri-implant bone tissue. Monotype or two-piece zirconia implants can be used for rehabilitation with FPD. However, the absence of separation between implant and abutment in the monotype system avoids the stress concentration in the prosthetic screw and reduced the peri-implant bone strain.
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Affiliation(s)
- Jefferson David Melo de Matos
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), Sao Paulo, Brazil
| | - Guilherme da Rocha Scalzer Lopes
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), Sao Paulo, Brazil
| | - Leonardo Jiro Nomura Nakano
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), Sao Paulo, Brazil
| | - Nathália de Carvalho Ramos
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), Sao Paulo, Brazil.,Department of Dentistry, Universidade São Francisco (USF), Bragança Paulista, Brazil
| | | | - Marco Antonio Bottino
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), Sao Paulo, Brazil
| | - João Paulo Mendes Tribst
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), Sao Paulo, Brazil.,Department of Dentistry, University of Taubaté (UNITAU), Taubaté, Brazil
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Dal Piva AMDO, Tribst JPM, Benalcázar Jalkh EB, Anami LC, Bonfante EA, Bottino MA. Minimal tooth preparation for posterior monolithic ceramic crowns: Effect on the mechanical behavior, reliability and translucency. Dent Mater 2020; 37:e140-e150. [PMID: 33246664 DOI: 10.1016/j.dental.2020.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/10/2020] [Accepted: 11/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Despite the increased use of monolithic crowns, their performance has yet to be determined when the minimal tooth preparation (MTP) principle is considered. The goal of this study was to evaluate the effect of MTP on the mechanical behavior, reliability and translucency of posterior monolithic ceramic crowns. METHODS Dentin analogues were machined using two preparation designs (0.5 or 1 mm reduction) to receive first molar crowns in order to evaluate the monolithic crown performance. Next, 126 crowns were divided (21/g) according to the material (High translucent zirconia - YZHT, Zirconia reinforced lithium silicate - ZLS and Hybrid ceramic - HC) and thickness (0.5 or 1 mm). Tensile stress concentration was calculated using the finite element method. The crowns were adhesivelly cemented and step stress fatigued to calculate reliability for missions at 600 and 1000 N. Translucency was analyzed in 10 discs of each material and thickness. RESULTS Higher stress concentration was found in thinner crowns and those with higher elastic modulus. YZHT crowns were suspended when fatigue reached 1500 N load, thus 1-parameter Weibull was used to analyze the data. Reliability was only affected by thickness at 1000 N. ZLS.5 showed lower survival than HC.5, which was similar to the groups that presented 100% survival. YZHT showed the highest strength and data scattering. ZLS1 (22.3 ± 1.4) presented higher translucency than HC1 (19.2 ± 0.6) and YZHT1 (12.0 ± 2.9), whereas ZLS.5 and HC.5 were similar to each other (26.5 ± 2.3, 26.7 ± 2.2) and superior to YZHT.5 (12.7 ± 1.2). SIGNIFICANCE HC.5 combined high reliability and translucency with low stress concentration, yielding better crown performance and tooth preservation.
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Affiliation(s)
- Amanda Maria de Oliveira Dal Piva
- PhD Graduate Program in Restorative Dentistry, São Paulo State University (Unesp), Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777, Jardim São Dimas, 12245-000 São José dos Campos, SP, Brazil.
| | - João Paulo Mendes Tribst
- PhD Graduate Program in Restorative Dentistry, São Paulo State University (Unesp), Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777, Jardim São Dimas, 12245-000 São José dos Campos, SP, Brazil.
| | - Ernesto Byron Benalcázar Jalkh
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry. Alameda Dr. Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil.
| | - Lilian Costa Anami
- PhD Graduate Program in Restorative Dentistry, São Paulo State University (Unesp), Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777, Jardim São Dimas, 12245-000 São José dos Campos, SP, Brazil.
| | - Estevam Augusto Bonfante
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry. Alameda Dr. Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil.
| | - Marco Antonio Bottino
- PhD Graduate Program in Restorative Dentistry, São Paulo State University (Unesp), Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777, Jardim São Dimas, 12245-000 São José dos Campos, SP, Brazil.
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Redox two-component initiated free radical and cationic polymerizations: Concepts, reactions and applications. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.04.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Tribst JPM, Dal Piva AMDO, Penteado MM, Borges ALS, Bottino MA. Influence of ceramic material, thickness of restoration and cement layer on stress distribution of occlusal veneers. Braz Oral Res 2018; 32:e118. [DOI: 10.1590/1807-3107bor-2018.vol32.0118] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 10/17/2018] [Indexed: 11/22/2022] Open
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CAD-FEA modeling and analysis of different full crown monolithic restorations. Dent Mater 2018; 34:1342-1350. [DOI: 10.1016/j.dental.2018.06.024] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 05/09/2018] [Accepted: 06/07/2018] [Indexed: 11/21/2022]
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TRIBST JPM, PIVA AMDODAL, BORGES ALS, BOTTINO MA. Influence of crown and hybrid abutment ceramic materials on the stress distribution of implant-supported prosthesis. REVISTA DE ODONTOLOGIA DA UNESP 2018. [DOI: 10.1590/1807-2577.04218] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Introduction A new dental implant-abutment design is available with the possibility of improving aesthetic with no compromise of mechanical strength, using perforated CAD/CAM ceramic blocks. Objective This study evaluated the influence of crown and hybrid abutment ceramic materials combination on the stress distribution of external hexagon implant supported prosthesis. Method Zirconia, lithium disilicate and hybrid ceramic were evaluated, totaling 9 combinations of crown and mesostructure materials. For finite element analysis, a monolithic crown cemented over a hybrid abutment (mesostructure + titanium base) was modeled and screwed onto an external hexagon implant. Models were then exported in STEP format to analysis software, and the materials were considered isotropic, linear, elastic and homogeneous. An oblique load (30°, 300N) was applied to the central fossa bottom and the system’s fixation occurred on the bone’s base. Result For crown structure, flexible materials concentrate less stress than rigid ones. In analyzing the hybrid abutment, it presented higher stress values when it was made with zirconia combined with a hybrid ceramic crown. The stress distribution was similar regarding all combinations for the fixation screw and implant. Conclusion For external hexagon implant, the higher elastic modulus of the ceramic crowns associated with lower elastic modulus of the hybrid abutment shows a better stress distribution on the set, suggesting a promising mechanical behavior.
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Lee SY, Cho CB, Koak JY, Yang SE. The effect of zirconia thickness and curing time on shear bond strength of dualcure resin cement. Dent Mater J 2017; 35:132-7. [PMID: 26830834 DOI: 10.4012/dmj.2015-181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluated how zirconia thickness affects shear bond strength (SBS) between zirconia and dual-cure resin cement. Eighty specimens (40 blocks of 1 mm thickness zirconia and 20 of each 1.5 and 2 mm) were divided into 8 groups according to zirconia thickness and light-curing time. Group A, B, C, and D were light-polymerized during 20 s and group E, F, G, and H were light-cured during 40 s. Self-adhesive dual-cure resin cement was placed onto the zirconia surfaces and then light-polymerized. The mean SBS of the 40 s curing time group was statistically higher than that of the 20 s curing time group. However, curing time did not affect the SBS significantly in the 2 mm thickness groups. The mean SBS of the 1.5 and 2 mm groups were statistically lower than those 1 mm groups. Therefore, zirconia thickness significantly affected the SBS of self-adhesive dual-cure resin cement.
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Affiliation(s)
- Su-Young Lee
- Department of Conservative Dentistry and Prosthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea
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Garra P, Dietlin C, Morlet-Savary F, Dumur F, Gigmes D, Fouassier JP, Lalevée J. Photopolymerization processes of thick films and in shadow areas: a review for the access to composites. Polym Chem 2017. [DOI: 10.1039/c7py01778b] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The state of the art for the access to thick samples by photopolymerization processes as well as some perspectives are provided.
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Affiliation(s)
- Patxi Garra
- Institut de Science des Matériaux de Mulhouse IS2M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | - Céline Dietlin
- Institut de Science des Matériaux de Mulhouse IS2M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | - Fabrice Morlet-Savary
- Institut de Science des Matériaux de Mulhouse IS2M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | | | | | - Jean-Pierre Fouassier
- Institut de Science des Matériaux de Mulhouse IS2M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
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ISHIKAWA Y, KOMADA W, INAGAKI T, NEMOTO R, OMORI S, MIURA H. The effects of post and core material combination on the surface strain of the 4-unit zirconia fixed partial denture margins. Dent Mater J 2017; 36:798-808. [DOI: 10.4012/dmj.2016-343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yoko ISHIKAWA
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
| | - Wataru KOMADA
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
| | - Tasuku INAGAKI
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
| | - Reina NEMOTO
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
| | - Satoshi OMORI
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
| | - Hiroyuki MIURA
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
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Trindade FZ, Valandro LF, de Jager N, Bottino MA, Kleverlaan CJ. Elastic Properties of Lithium Disilicate Versus Feldspathic Inlays: Effect on the Bonding by 3D Finite Element Analysis. J Prosthodont 2016; 27:741-747. [DOI: 10.1111/jopr.12550] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2016] [Indexed: 01/06/2023] Open
Affiliation(s)
- Flávia Zardo Trindade
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry; Univ. Estadual Paulista; Araraquara Brazil
- Department of Dental Materials and Prosthodontics, Instituto de Ciência e Tecnologia-ICT; Univ Estadual Paulista-UNESP; São José dos Campos Brazil
| | - Luiz Felipe Valandro
- Department of Restorative Dentistry (Prosthodontics), School of Dentistry; Federal University of Santa Maria; Rio Grande do Sul State Santa Maria Brazil
| | - Niek de Jager
- Department of Dental Materials Science at ACTA; Universiteit van Amsterdam and Vrije Universiteit; Amsterdam The Netherlands
| | - Marco Antônio Bottino
- Department of Dental Materials and Prosthodontics, Instituto de Ciência e Tecnologia-ICT; Univ Estadual Paulista-UNESP; São José dos Campos Brazil
| | - Cornelis Johannes Kleverlaan
- Department of Dental Materials Science at ACTA; Universiteit van Amsterdam and Vrije Universiteit; Amsterdam The Netherlands
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Mini-interfacial fracture toughness as a new validated enamel-bonding effectiveness test. J Mech Behav Biomed Mater 2016; 62:446-455. [PMID: 27281162 DOI: 10.1016/j.jmbbm.2016.05.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 05/16/2016] [Accepted: 05/18/2016] [Indexed: 11/22/2022]
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de Kok P, de Jager N, Veerman IA, Hafeez N, Kleverlaan CJ, Roeters JF. Effect of a retention groove on the shear bond strength of dentin-bonded restorations. J Prosthet Dent 2016; 116:382-8. [DOI: 10.1016/j.prosdent.2016.01.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/22/2016] [Accepted: 01/26/2016] [Indexed: 10/21/2022]
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Hu M, Weiger R, Fischer J. Comparison of two test designs for evaluating the shear bond strength of resin composite cements. Dent Mater 2015; 32:223-32. [PMID: 26723840 DOI: 10.1016/j.dental.2015.11.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/02/2015] [Accepted: 11/30/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare a shear bond strength test for resin composite cements developed in order to better consider the shrinkage stress (here termed "Swiss shear test") with the shear test design according to ISO 29022. METHOD Four restorative materials (VITA Enamic (VE), VITA Suprinity (VS), Vitablocs Mark II (VM) and VITA YZ T (YZ)) served as substrate. VE, VS and VM were polished or etched. YZ was polished, sandblasted or etched. Specimens were either bonded according to the Swiss or the ISO shear test. RelyX Unicem 2 Automix, Maxcem Elite and PermaFlo DC were used as cements. Shear bond strength (SBS) was measured. Failure modes (adhesive, cohesive or mixed) were evaluated by means of SEM. RESULTS Mean SBS values obtained with the Swiss shear test were significantly lower than those obtained with the ISO shear test. VE and VM exhibited similar SBS, values of VS were significantly higher. On etched surfaces VM and VE exhibited primarily cohesive failures, VS primarily adhesive failures. On polished substrates significantly lower bond strength values and exclusively adhesive failures were observed. YZ exhibited solely adhesive failures. Compared to polished YZ, SBS significantly increased after sandblasting and even more after etching. Only for adhesively failed specimens mean SBS values of Swiss and ISO shear test were strongly correlated. SIGNIFICANCE Both test designs showed the same ranking of test results. When adhesive failure occurred test results were strongly correlated. When cohesive failure was involved, both test designs did not provide reliable results.
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Affiliation(s)
- M Hu
- Department of Materials Science and Engineering, University Hospital for Dental Medicine, University of Basel, Basel, Switzerland
| | - R Weiger
- Clinic for Periodontology, Endodontology and Cariology, University Hospital of Dental Medicine, University of Basel, Basel, Switzerland
| | - J Fischer
- Department of Materials Science and Engineering, University Hospital for Dental Medicine, University of Basel, Basel, Switzerland; VITA Zahnfabrik, Bad Säckingen, Germany.
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