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Taha AI, Hafez ME. Effect of preparation design on fracture resistance of molars restored with occlusal veneers of different CAD-CAM materials: an in vitro study. BMC Oral Health 2024; 24:1168. [PMID: 39354422 DOI: 10.1186/s12903-024-04904-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 09/12/2024] [Indexed: 10/03/2024] Open
Abstract
BACKGROUND Occlusal veneer had been evaluated for mechanical properties using lithium disillicate. However, studies evaluating the mechanical properties of occlusal veneer with different preparation designs and ceramic materials are lacking. So, this in vitro study aimed to evaluate the fracture resistance of occlusal veneers with two designs fabricated from two different ceramic materials. MATERIAL AND METHODS Fourty mandibular third molars were distributed to 2 groups (n = 20) according to preparation design: group (O) anatomical occlusal reduction and group (OA) anatomical occlusal and 1 mm axial reduction. Each group was additionally subdivided into two subgroups (n = 10) according to ceramic materials; in subgroup X, lithium disilicate (e.max CAD, Ivoclar AG, Schaan, Liechtenstein) was used, and in subgroup S, zirconia-reinforced lithium silicate (ZLS) (Vita Suprinity, VitaZahnfabrik, Bad Säckingen, Germany) was used. All specimens were cemented with a light-cure resin cement (Choice 2, Bisco, Schaumburg, USA). 5000 thermocycles were applied to all specimens with both temperatures of 5 °C and 55 °C in two water baths; the dwell time was 30s at each bath, and the transfer time was 10s. Then all specimens were subjected to a fatigue simulation under dynamic loading of 200 N for 250,000 cycles. A universal testing machine (5500R/1123, Instron, Norwood, USA) was used to evaluate the fracture strength with a crosshead speed of 1 mm/min. All data were analyzed statistically by using a two-way ANOVA, and for some violations of assumptions, these results were compared with those obtained by the nonparametric test (Scheirer Ray Hare) (α = 0.05). RESULTS A statistically significantly higher fracture resistance in the 'OA' (3389 N) compared to the 'O' (2787 N) group regardless of the ceramic material (P < .001) and a statistically significantly higher fracture resistance in the 'X' (3295 N) compared to the 'S' (2881 N) regardless of the preparation design (P = .015). CONCLUSIONS For occlusal veneers, all preparation designs and materials (such as Vita Suprinity and e.max CAD) had clinically acceptable fracture resistance values that were greater than the maximal biting forces. On the other hand, the e.max CAD with occlusal veneer, including axial reduction design, demonstrated the maximum fracture resistance value. Finally, no relationship between fracture strength and mode of failure was found.
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Affiliation(s)
- Ahmed Ismail Taha
- Prosthodontic Department, Faculty of Dentistry, Kafr Al Sheikh University, Mubark Road, 33511 Kafr Abu Tabl, Kafrelsheikh Governorate, Kafr Al Sheikh, 6860404, Egypt.
| | - Mona Elshirbini Hafez
- Conservative Department, Faculty of Dentistry, Kafr Al Sheikh University, Kafr Al Sheikh, Egypt
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Liu H, He Z, Xie C, Rao S, Yu H. A digital workflow for full-mouth rehabilitation using CAD-CAM tooth reduction template. J Prosthodont 2024. [PMID: 39146035 DOI: 10.1111/jopr.13914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 06/28/2024] [Indexed: 08/17/2024] Open
Abstract
A digital workflow is presented for multiple transfers of targeted jaw relation and restorative spaces from interim to definitive restorations in patients with severe tooth wear. Following analysis of the targeted restorative space, segmented arch stereolithographic templates were digitally created and fabricated for precise control of reduction depth. Then, the jaw relation was transferred from the initially determined stabilization splint to the temporary fixed restoration and definitive restoration by using a digital articulator. This digital approach yielded a stabilized jaw relationship and restorative spaces transferring effect throughout successive stages of occlusal reconstruction resulting in satisfactory prosthetic outcomes.
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Affiliation(s)
- Huanhuan Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Key Laboratory of Stomatology, Guangzhou, P.R. China
| | - Zijing He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Chenyang Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Sihan Rao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Haiyang Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
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Metin DS, Schmidt F, Beuer F, Prause E, Ashurko I, Sarmadi BS, Unkovskiy A. Accuracy of the intaglio surface of 3D-printed hybrid resin-ceramic crowns, veneers and table-tops: An in vitro study. J Dent 2024; 144:104960. [PMID: 38513937 DOI: 10.1016/j.jdent.2024.104960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 03/13/2024] [Accepted: 03/19/2024] [Indexed: 03/23/2024] Open
Abstract
OBJECTIVES The present study aims to examine the influence of the build angle on the accuracy (trueness and precision) of 3D printed crowns, table-tops and veneers with a hybrid resin-ceramic material. METHODS One crown, on table-top and one veneer were printed in five different build angles (0°, 30°, 45°, 60°, 90°) (n = 50) with the digital light processing (DLP) system (Varseo XS, Bego) using hybrid resin (Varseo Smile Crownplus A3, Bego). All printed restorations were scanned using the laboratory scanner (D2000, 3Shape) and matched onto the initial reference design in metrology software (Geomagic Control X, 3D Systems). The root mean square error (RMSE) was calculated between the scanned and reference data. The data was statistically analyzed using the Tukey multiple comparison test and Wilcoxon multiple comparison test. RESULTS The crown group showed higher trueness at 30° (0.021 ± 0.002) and 45° (0.020 ± 0.002), and table-tops at 0° (0.015 ± 0.001) and 30° (0.014 ± 0.001) (p < 0.0001). Veneers demonstrated higher trueness at 30° (0.016 ± 0.002) (p < 0.0001). All three restoration types demonstrated the lowest trueness at a 90° build angle and portrayed deviations along the z axis. The veneer and table-top groups showed the lowest precision at 90° (veneers: 0.021 ± 0.008; table-tops: 0.013 ± 0.003). The crown group portrayed the lowest precision at 45° (0.017 ± 0.005) (p < 0.0001). CONCLUSION The build angle of DLP-printed hybrid resin-ceramic restorations influences their accuracy. CLINICAL SIGNIFICANCE Considering the build angle is important to achieve a better accuracy of 3D-printed resin-ceramic hybrid restorations. This may help predict or avoid the interference points between a restoration and a die and minimize the clinical adjustments.
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Affiliation(s)
- Dilan Seda Metin
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Dental Materials and Biomaterial Research, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Aßmannshauser Str., 4-6, 14197, Berlin, Germany
| | - Franziska Schmidt
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Dental Materials and Biomaterial Research, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Aßmannshauser Str., 4-6, 14197, Berlin, Germany
| | - Florian Beuer
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Dental Materials and Biomaterial Research, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Aßmannshauser Str., 4-6, 14197, Berlin, Germany
| | - Elisabeth Prause
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Dental Materials and Biomaterial Research, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Aßmannshauser Str., 4-6, 14197, Berlin, Germany
| | - Igor Ashurko
- Department of Dental Surgery, Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street, 19с1, Moscow, 119146, Russia
| | - Bardia Saadat Sarmadi
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Dental Materials and Biomaterial Research, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Aßmannshauser Str., 4-6, 14197, Berlin, Germany
| | - Alexey Unkovskiy
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Dental Materials and Biomaterial Research, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Aßmannshauser Str., 4-6, 14197, Berlin, Germany; Department of Dental Surgery, Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street, 19с1, Moscow, 119146, Russia.
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Mehta SB, Banerji S, Crins L, Opdam N, Loomans BAC. The longevity of tooth-coloUred materials used for restoration of tooth wear: an evidence-based approach. Prim Dent J 2023; 12:43-53. [PMID: 37705477 DOI: 10.1177/20501684231193595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Patients with tooth wear are commonly encountered in general dental practice. When indicated, restorative rehabilitation is often accompanied by a request from the patient for an aesthetic, tooth-coloured outcome. This article seeks to provide an evidence-based approach, focussing on the longevity of the materials which can be used for the restorative treatment of tooth wear, as well as their modes of failure and observed performance.
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Affiliation(s)
- Shamir B Mehta
- Shamir B. Mehta BDS, BSc MClinDent (Prosthodontics), PhD Dip. FFGDP(UK), FCGDent, FDSRCS(Eng), FDSRCPS(Glas), FDFTEd Professor of Aesthetic Dentistry, College of Medicine and Dentistry/Ulster University; Visiting Professor Radboud University Medical Centre; Senior Clinical Teacher, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK
- Subir Banerji BDS, MClinDent (Prosthodontics), PhD, FDS, RCPS(Glasg), FCGDent, FICD Programme Director MSc Aesthetic Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK; Associate Professor, Department of Prosthodontics, Melbourne Dental School, The University of Melbourne, Australia
- Luuk Crins DDS PhD candidate, Department of Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
- Niek Opdam DDS, PhD Associate Professor in Restorative Dentistry and Cariology, Radboud University Medical Centre, Nijmegen, the Netherlands
- Bas A. C. Loomans DDS, PhD Professor in Oral Function and Restorative Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Subir Banerji
- Shamir B. Mehta BDS, BSc MClinDent (Prosthodontics), PhD Dip. FFGDP(UK), FCGDent, FDSRCS(Eng), FDSRCPS(Glas), FDFTEd Professor of Aesthetic Dentistry, College of Medicine and Dentistry/Ulster University; Visiting Professor Radboud University Medical Centre; Senior Clinical Teacher, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK
- Subir Banerji BDS, MClinDent (Prosthodontics), PhD, FDS, RCPS(Glasg), FCGDent, FICD Programme Director MSc Aesthetic Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK; Associate Professor, Department of Prosthodontics, Melbourne Dental School, The University of Melbourne, Australia
- Luuk Crins DDS PhD candidate, Department of Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
- Niek Opdam DDS, PhD Associate Professor in Restorative Dentistry and Cariology, Radboud University Medical Centre, Nijmegen, the Netherlands
- Bas A. C. Loomans DDS, PhD Professor in Oral Function and Restorative Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Luuk Crins
- Shamir B. Mehta BDS, BSc MClinDent (Prosthodontics), PhD Dip. FFGDP(UK), FCGDent, FDSRCS(Eng), FDSRCPS(Glas), FDFTEd Professor of Aesthetic Dentistry, College of Medicine and Dentistry/Ulster University; Visiting Professor Radboud University Medical Centre; Senior Clinical Teacher, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK
- Subir Banerji BDS, MClinDent (Prosthodontics), PhD, FDS, RCPS(Glasg), FCGDent, FICD Programme Director MSc Aesthetic Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK; Associate Professor, Department of Prosthodontics, Melbourne Dental School, The University of Melbourne, Australia
- Luuk Crins DDS PhD candidate, Department of Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
- Niek Opdam DDS, PhD Associate Professor in Restorative Dentistry and Cariology, Radboud University Medical Centre, Nijmegen, the Netherlands
- Bas A. C. Loomans DDS, PhD Professor in Oral Function and Restorative Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Niek Opdam
- Shamir B. Mehta BDS, BSc MClinDent (Prosthodontics), PhD Dip. FFGDP(UK), FCGDent, FDSRCS(Eng), FDSRCPS(Glas), FDFTEd Professor of Aesthetic Dentistry, College of Medicine and Dentistry/Ulster University; Visiting Professor Radboud University Medical Centre; Senior Clinical Teacher, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK
- Subir Banerji BDS, MClinDent (Prosthodontics), PhD, FDS, RCPS(Glasg), FCGDent, FICD Programme Director MSc Aesthetic Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK; Associate Professor, Department of Prosthodontics, Melbourne Dental School, The University of Melbourne, Australia
- Luuk Crins DDS PhD candidate, Department of Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
- Niek Opdam DDS, PhD Associate Professor in Restorative Dentistry and Cariology, Radboud University Medical Centre, Nijmegen, the Netherlands
- Bas A. C. Loomans DDS, PhD Professor in Oral Function and Restorative Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Bas A C Loomans
- Shamir B. Mehta BDS, BSc MClinDent (Prosthodontics), PhD Dip. FFGDP(UK), FCGDent, FDSRCS(Eng), FDSRCPS(Glas), FDFTEd Professor of Aesthetic Dentistry, College of Medicine and Dentistry/Ulster University; Visiting Professor Radboud University Medical Centre; Senior Clinical Teacher, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK
- Subir Banerji BDS, MClinDent (Prosthodontics), PhD, FDS, RCPS(Glasg), FCGDent, FICD Programme Director MSc Aesthetic Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, UK; Associate Professor, Department of Prosthodontics, Melbourne Dental School, The University of Melbourne, Australia
- Luuk Crins DDS PhD candidate, Department of Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
- Niek Opdam DDS, PhD Associate Professor in Restorative Dentistry and Cariology, Radboud University Medical Centre, Nijmegen, the Netherlands
- Bas A. C. Loomans DDS, PhD Professor in Oral Function and Restorative Dentistry, Radboud University Medical Centre, Nijmegen, the Netherlands
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Prause E, Hey J, Schmidt F, Nicic R, Beuer F, Unkovskiy A. The Assessability of Approximal Secondary Caries of Non-Invasive 3D-Printed Veneers Depending on the Restoration Thickness-An In Vitro Study. Bioengineering (Basel) 2023; 10:992. [PMID: 37760094 PMCID: PMC10525397 DOI: 10.3390/bioengineering10090992] [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: 07/26/2023] [Revised: 08/12/2023] [Accepted: 08/20/2023] [Indexed: 09/29/2023] Open
Abstract
To date, no scientific data is available regarding the development and radiographic assessment of approximal caries development after the insertion of 3D-printed, non-invasive veneers of different restoration thicknesses. For the present study, non-invasive veneers were fabricated from two different materials for printing and milling (Vita Enamic and VarseoSmile Crown plus). Three different restoration thicknesses (0.5, 0.7, and 0.9 mm) were selected. After digital design, leaving the approximal space free, and manufacturing of the restorations, adhesive insertion followed. All specimens were placed in a demineralizing solution for 28 days. Subsequently, a radiological and fluorescent examination was performed. The present study showed statistically significant interactions for the day (p < 0.0001) and manufacturing method (p < 0.0001) but not for restoration thickness. Additive manufactured restorations showed less radiological caries progression compared to subtractive manufactured restorations after 21 and 28 days (0.7 and 0.9 mm restoration thickness) (p < 0.0001). DIAGNOdent proved that the restoration thickness affected the caries progression within the subtractive group (p < 0.0001). Radiographic and fluorescence examination showed equivalent results regarding approximal caries assessment. For additive manufacturing, less caries progression was shown without consideration of the restoration thickness.
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Affiliation(s)
- Elisabeth Prause
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany; (J.H.); (F.S.); (R.N.); (F.B.); (A.U.)
| | - Jeremias Hey
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany; (J.H.); (F.S.); (R.N.); (F.B.); (A.U.)
- Department of Prosthodontics, School of Dental Medicine, Martin-Luther-University, 06112 Halle, Germany
| | - Franziska Schmidt
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany; (J.H.); (F.S.); (R.N.); (F.B.); (A.U.)
| | - Robert Nicic
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany; (J.H.); (F.S.); (R.N.); (F.B.); (A.U.)
| | - Florian Beuer
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany; (J.H.); (F.S.); (R.N.); (F.B.); (A.U.)
| | - Alexey Unkovskiy
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany; (J.H.); (F.S.); (R.N.); (F.B.); (A.U.)
- Department of Dental Surgery, Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street, 19c1, 119146 Moscow, Russia
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Ferrando Cascales Á, Sauro S, Hirata R, Astudillo-Rubio D, Ferrando Cascales R, Agustín-Panadero R, Delgado-Gaete A. Total Rehabilitation Using Adhesive Dental Restorations in Patients with Severe Tooth Wear: A 5-Year Retrospective Case Series Study. J Clin Med 2023; 12:5222. [PMID: 37629264 PMCID: PMC10455517 DOI: 10.3390/jcm12165222] [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: 05/14/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
INTRODUCTION Currently, there is little clinical evidence to support the medium- and long-term survival and clinical performance of ultraconservative approaches using adhesive restorations in full-mouth restorations. The aim of this case series study was to evaluate the medium-term clinical performance of anterior and posterior adhesive restorations applied with direct and indirect techniques using resin composites and glass-ceramic-based materials. MATERIALS AND METHODS The inclusion criteria were an esthetic problem as the main reason for consultation and severe generalized wear of grade 2 to 4 according to the Tooth Wear Evaluation System (TWES 2.0). In addition, at each follow-up appointment, patients were required to submit a clinical-parameter-monitoring record according to the modified United States Public Health Service (USPHS) criteria. RESULTS Eight patients with severe tooth wear were treated through full rehabilitation in a private dental clinic in Spain by a single operator (AFC). A total of 212 restorations were performed, which were distributed as follows: 66 occlusal veneers, 26 palatal veneers and 120 vestibular veneers. No signs of marginal microleakage or postoperative sensitivity were observed in any occlusal, vestibular and/or palatal restoration after the follow-up period. The estimated survival rate of the 212 restorations was 90.1% over 60 months of observation, with a survival time of 57.6 months. Only 21 restorations had complications, which were mostly resolved with a direct composite resin. The dichotomous variables of the restoration type (posterior veneer, anterior veneer) and the type of restored tooth (anterior, posterior) were the risk predictors with statistically significant influences (p < 0.005) on the survival of the restorations. CONCLUSION According to the results of this study, there is a significantly higher risk of restorative complications in posterior teeth compared to anterior teeth. Also, it can be concluded that the indication of adhesive anterior and posterior restorations is justified in the total oral rehabilitation of patients with severe multifactorial tooth wear, as they are associated with a low risk of failure.
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Affiliation(s)
- Álvaro Ferrando Cascales
- Department of Biomaterials Engineering, Faculty of Medicine, UCAM, Universidad Católica de Murcia, Campus Los Jerónimos, 135 Guadalupe, 30107 Murcia, Spain; (Á.F.C.); (R.F.C.)
| | - Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Department of Dentistry, University CEU Cardenal Herrera, C/Santiago Ramón y Cajal, s/n, Alfara del Patriarca, 46115 Valencia, Spain;
- Department of Therapeutic Dentistry, I. M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Ronaldo Hirata
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY 10010, USA;
| | - Daniela Astudillo-Rubio
- Division of Prosthodontics, School of Dentistry, Universidad Católica de Cuenca, Cuenca 010107, Ecuador; (D.A.-R.); (A.D.-G.)
| | - Raúl Ferrando Cascales
- Department of Biomaterials Engineering, Faculty of Medicine, UCAM, Universidad Católica de Murcia, Campus Los Jerónimos, 135 Guadalupe, 30107 Murcia, Spain; (Á.F.C.); (R.F.C.)
| | - Rubén Agustín-Panadero
- Prosthodontic and Occlusion Unit, Department of Stomatology, Faculty of Medicine and Dentistry, Universitat de València, 46010 Valencia, Spain
| | - Andrés Delgado-Gaete
- Division of Prosthodontics, School of Dentistry, Universidad Católica de Cuenca, Cuenca 010107, Ecuador; (D.A.-R.); (A.D.-G.)
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Martins WF, Coelho CSS, Amaral FLBD, França FMG, Turssi CP, Cavalli V, Basting RT. Fracture load and failure mode of semi-direct resin composite occlusal veneers: Influence of design and mechanical cycling. J Mech Behav Biomed Mater 2023; 144:105961. [PMID: 37320893 DOI: 10.1016/j.jmbbm.2023.105961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
AIMS To evaluate the influence of the type of preparation and mechanical cycling on the fracture load and failure mode of semi-direct posterior resin composite restorations. METHODS In total, 70 healthy third molars were used; 10 belonging to the control group (C - unprepared teeth) and 60 teeth prepared and restored with nanoparticle resin composite, divided into 3 groups (n = 20): O - exclusively occlusal preparation (Table Top); OV - occlusal preparation with buccal extension (Veneerlay); OVP - Occlusal preparation with chamfer on the proximal and buccal-lingual/palatal surfaces (Overlay). The preparations were performed with diamond burs with a thickness of 1 mm. The restorations were made with nanoparticulate resin composite (Filtek Z350 XT) and subsequently received additional polymerization (thermoprocessing). Cementation was performed with the use of universal adhesive system (Single Bond Universal) on dental substrate and dual resin cement (RelyX ARC). Half of the teeth in each group (n = 10) were submitted to mechanical cycling, simulating 6 months of clinical service (5 × 105 fatigue cycles), under dynamic loading of 130 N, at a frequency of 2Hz. Fracture load tests were performed in a universal testing machine with a 200 kgf load cell. Failure mode was classified using scores. Generalized linear models and Fisher Exact tests were applied to the data (significance level of 5%). RESULTS There were no significant differences between the types of preparation (p = 0.9435), or relative to cycling (p = 0.3764). The Fisher Exact Test showed a significant association between the groups and the type of failure (p = 0.0006), with preparations O (with cycling) and OVP (with and without cycling) exhibiting most failures with restoration fractures without involvement of the dental remnant. CONCLUSIONS Semi-direct restorations showed resistance to fracture load similar to that of healthy teeth and were capable of withstanding functional masticatory loads. The type of preparation influenced the failure mode of teeth. The Table Top and Overlay types of preparations were those had fewer catastrophic failures, suggesting that since they are more conservative preparations, they made it possible for the tooth to receive a new restorative procedure in the future in cases of failures.
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Affiliation(s)
- Wellington Ferreira Martins
- Faculdade São Leopoldo Mandic, Rua José Rocha Junqueira 13, Bairro Swift, Campinas, CEP: 13045-755, São Paulo, Brazil.
| | - Camila Siqueira Silva Coelho
- Piracicaba Dental School, University of Campinas, 901 Limeira Avenue, Areião, 13414-903, Piracicaba, São Paulo, Brazil.
| | | | | | - Cecilia Pedroso Turssi
- Faculdade São Leopoldo Mandic, Rua José Rocha Junqueira 13, Bairro Swift, Campinas, CEP: 13045-755, São Paulo, Brazil.
| | - Vanessa Cavalli
- Piracicaba Dental School, University of Campinas, 901 Limeira Avenue, Areião, 13414-903, Piracicaba, São Paulo, Brazil.
| | - Roberta Tarkany Basting
- Faculdade São Leopoldo Mandic, Rua José Rocha Junqueira 13, Bairro Swift, Campinas, CEP: 13045-755, São Paulo, Brazil.
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Crins LAMJ, Opdam NJM, Kreulen CM, Bronkhorst EM, Huysmans MCDNJM, Loomans BAC. Randomised controlled trial on testing an increased vertical dimension of occlusion prior to restorative treatment of tooth wear. J Oral Rehabil 2023; 50:267-275. [PMID: 36582043 DOI: 10.1111/joor.13408] [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: 08/23/2022] [Revised: 12/13/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Evaluation of a new vertical dimension of occlusion (VDO) in complex restorative treatments is considered a necessary step prior to placement of restorations. OBJECTIVES This randomised controlled trial (RCT) aimed to assess the effects of using an evaluation of a VDO increase before restorative treatment in patients with moderate-to-severe tooth wear, on OHRQoL, freeway space (FWS) and interventions to restorations. METHODS Forty-two patients with tooth wear were included and randomly allocated to either a test phase with a Removable Appliance (RA) or no test phase. Restorative treatment consisted of restoration of all teeth using composite restorations in an increased VDO. OHIP-score, freeway space (FWS) and clinical acceptability of restorations were assessed at baseline and at recall appointments (1 month and 1 year). Intervention to restoration was scored in case of material chipping or when the abutment tooth had increased sensitivity that could be linked to occlusal overloading. ANCOVA analyses, Univariate Cox regression, t-tests and descriptive analyses were performed (p < .05). RESULTS Clinical follow-up after 1 year was completed for 41 patients. No significant effect of testing the VDO with a RA could be found on the OHIP-score (p = .14). Reduction of FWS in the RA group, compared to the control group, was significantly lower at 1 year (p = .01, 95% CI -1.09 to -0.15). No effect on early interventions to restorations was found (p = .94). CONCLUSION This RCT showed that a removable appliance is not indicated to functionally test the increased VDO prior to restorative treatment in patients with tooth wear.
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Affiliation(s)
- Luuk A M J Crins
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Niek J M Opdam
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Cees M Kreulen
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Ewald M Bronkhorst
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | | | - Bas A C Loomans
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
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Sirous S, Navadeh A, Ebrahimgol S, Atri F. Effect of preparation design on marginal adaptation and fracture strength of ceramic occlusal veneers: A systematic review. Clin Exp Dent Res 2022; 8:1391-1403. [PMID: 36062841 PMCID: PMC9760166 DOI: 10.1002/cre2.653] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 08/13/2022] [Accepted: 08/18/2022] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVES This systematic review aims to investigate the effect of different preparation designs on the marginal fit and fracture strength of ceramic occlusal veneers. MATERIALS AND METHODS Based on the PICO question and the search terms, an electronic search was performed in Google Scholar, PubMed (MEDLINE), Scopus, Cochrane Library, Web of Science, Science Direct, Wiley, Ovid, and SAGE for articles published up to July 2022. After including English in vitro studies that evaluated posterior ceramic occlusal overlays at the posterior with ceramic restorations by following the PRISMA statement, the extracted data was tabulated. The methodological quality of the included studies was evaluated. Risk of bias assessment was done independently by two authors using the modified MINORS scale. RESULTS About 3138 search results were screened, of which 22 were selected due to their titles. Twenty-one full-text articles were assessed for eligibility. Seventeen in-vitro studies were finalized for the extraction of quantitative data. All 17 articles had a low risk of bias and were retained. The influencing items for evaluating the research were different in most studies; therefore, qualitative synthesis of the results was feasible. They generally included preparation design, material thickness, depth of preparation in the tooth, internal divergence angle, and finish line. Meta-analysis was not done due to heterogeneity of preparation types and evaluation methods. Results revealed that fracture resistance of occlusal veneers is higher than normal mastication force, and it is sufficient to prepare the occlusal surface, use a self-etching primer for bonding, and an acceptable minimum ceramic thickness. The marginal discrepancy of occlusal veneers is clinically acceptable. However, this systematic review faces some limitations due to the lack of in vivo studies, different preparation designs in included studies, different follow-ups, and lack of comprehensive explanations in articles. CONCLUSIONS The preparation design of occlusal veneers influences both marginal adaptation and fracture resistance. Various preparation designs are proven to have clinically acceptable fracture strength and marginal adaptation.
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Affiliation(s)
- Samin Sirous
- Departement of Prosthodontics, School of DentistryIslamic Azad University (Khorasgan Branch)IsfahanIran
| | | | - Saeedeh Ebrahimgol
- Department of Prosthodontics, School of DentistryTehran University of Medical SciencesTehranIran
| | - Faezeh Atri
- Department of Prosthodontics, Dental Research CenterDentistry Research Institute, Tehran University of Medical SciencesTehranIran
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Treatment of Tooth Wear Using Direct or Indirect Restorations: A Systematic Review of Clinical Studies. Bioengineering (Basel) 2022; 9:bioengineering9080346. [PMID: 36004871 PMCID: PMC9404995 DOI: 10.3390/bioengineering9080346] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/17/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022] Open
Abstract
Tooth wear is considered a well-developed issue in daily clinical practice; however, there is no standard protocol for treatment. The aim of this manuscript was to systematically review the literature to evaluate the clinical outcomes of direct or indirect restorations for treating tooth wear. A literature search was conducted through the PubMed MedLine, Scopus, ISI Web of Science, Scielo, and EMBASE databases up to 29 April 2022. Clinical studies evaluating the clinical performance of direct or indirect restorations for treating tooth wear for a minimum follow-up of 6 months were included in the review. A total of 2776 records were obtained from the search databases. After full-text reading, 16 studies were included in the qualitative analysis. Considering the high heterogenicity of the studies included, a meta-analysis could not be performed. All studies included the rehabilitation of anterior and posterior teeth with extensive wear, using both indirect and direct restorations for a maximum follow-up of 10 years. Restoration materials included ceramo-metal crowns, full gold crowns, lithium disilicate ceramic, zirconia, polymer infiltrated ceramic networks, and resin composites. Most of the reports assessed the survival rate of the restorations and the clinical features using the United States Public Health Service (USPHS) Evaluation System criteria. Contradictory discoveries were perceived concerning the type of restoration with better clinical performance. Considering the current literature available, there is no evidence in the superiority of any restoration technique to ensure the highest clinical performance for treating tooth wear.
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11
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Schlichting LH, Resende TH, Reis KR, Raybolt Dos Santos A, Correa IC, Magne P. Ultrathin CAD-CAM glass ceramic and composite resin occlusal veneers for the treatment of severe dental erosion: An up to 3-year randomized clinical trial. J Prosthet Dent 2022; 128:158.e1-158.e12. [PMID: 35750501 DOI: 10.1016/j.prosdent.2022.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/03/2022] [Accepted: 02/03/2022] [Indexed: 11/16/2022]
Abstract
STATEMENT OF PROBLEM Ultrathin bonded posterior occlusal veneers represent a conservative alternative to traditional onlays and complete coverage crowns for the treatment of erosive dental wear. Data regarding the clinical performance of ceramic and composite resin ultrathin occlusal veneers are lacking. PURPOSE The purpose of this prospective randomized clinical trial was to evaluate the influence of computer-aided design and computer-aided manufacturing (CAD-CAM) restorative material (ceramic versus composite resin) on the clinical performance of ultrathin occlusal veneers bonded to worn posterior teeth. MATERIAL AND METHODS Eleven participants (mean age, 30.4 years) had their posterior teeth restored with 24 ceramic (e.max CAD) and 36 composite resin (Lava Ultimate) ultrathin occlusal veneers. The material type was assigned randomly. The tooth preparations were trial restoration driven and included immediate dentin sealing (OptiBond FL). The intaglio surfaces of the ceramic restorations were etched with hydrofluoric acid and silanated, and the composite resins were airborne-particle abraded and silanated. The tooth preparations were airborne-particle abraded and etched with phosphoric acid before restoration insertion. All restorations were adhesively luted with preheated composite resin (Filtek Z100). The participants were evaluated according to the modified United States Public Health Service (USPHS) criteria at baseline and then each year for up to 3 years. Survival rates were estimated with time to failure (primary outcome of interest) as the endpoint (scores 4 or 5). RESULTS No restorations were lost. Five partial failures, in the form of chipping (all scored 4), were observed in the composite resin group (Lava Ultimate). The Kaplan-Meier survival rates were 100% for ceramic and 84.7% (SE 0.065%) for composite resin. Differences between the 2 groups were not statistically significant (P=.124). In the surviving restorations, significant difference (P=.003) was found for surface roughness as restorations in the composite resin group experienced some surface degradation. CONCLUSIONS The findings of this medium-term clinical trial suggest that ceramic (e.max CAD) and composite resin (Lava Ultimate) CAD-CAM ultrathin occlusal veneers presented statistically comparable performance regardless of the minor partial failures (restorable chipping) observed in the composite resin group. Higher surface degradation was observed in the composite resin group.
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Affiliation(s)
- Luís Henrique Schlichting
- Associate Professor, Operative Dentistry, Division of Comprehensive Oral Health, UNC Adams School of Dentistry, Chapel Hill, NC.
| | - Tayane Holz Resende
- Assistant Professor, Department of Prosthodontics and Dental Materials, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Kátia Rodrigues Reis
- Associate Professor, Department of Prosthodontics and Dental Materials, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Aline Raybolt Dos Santos
- Associate Professor, Department of Prosthodontics and Dental Materials, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ivo Carlos Correa
- Professor, Department of Prosthodontics and Dental Materials, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Pascal Magne
- The Don and Sybil Harrington Professor of Esthetic Dentistry, Restorative Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, Calif
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12
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McGrath CE, Bonsor SJ. Survival of direct resin composite onlays and indirect tooth-coloured adhesive onlays in posterior teeth: a systematic review. Br Dent J 2022:10.1038/s41415-022-4395-3. [PMID: 35725911 DOI: 10.1038/s41415-022-4395-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/06/2022] [Indexed: 11/08/2022]
Abstract
Objective To compare the survival of direct resin-composite used as onlays and indirect tooth-coloured adhesive onlays in posterior teeth, along with modes of failure, deterioration and variables affecting survival.Materials and methods PubMed, Embase, The Cochrane Library, Web of Science and Scopus were searched systematically up to 16 October 2020. In total, 3,768 studies were screened, with their results for survival, failure mode, deterioration and variables affecting survival.Results In total, 30 studies were selected. Survival rates in included studies greater than three years in length were 73.1-100%, with a median survival of 92.5% and median follow-up length of 5.1 years. The most prevalent failure mode was fracture, followed by pulpal episodes, debonding and caries. The most prevalent deterioration criteria were loss of marginal integrity and discolouration.Conclusions Survival of direct resin composite onlays and indirect tooth-coloured adhesive onlays in posterior teeth is acceptable (73.1-100%) in the medium-term. There is a need for more studies on direct cusp covering resin composite restorations, zirconia onlays and studies comparing material types. Fracture was the most prevalent failure mode. Restoration margins were the most prevalent area of deterioration.Clinical significance Direct and indirect tooth-coloured adhesive onlays can be a reliable and more conservative way to restore posterior teeth across a range of material options.
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Affiliation(s)
- Colin E McGrath
- Tier 2 Practitioner, DPHC Restorative Managed Clinical Network, Dental Centre Leconfield, HU17 7LX, UK.
| | - Stephen J Bonsor
- Dental Surgeon, The Dental Practice, 21 Rubislaw Terrace, Aberdeen, UK; Online Tutor and Clinical Lecturer, University of Edinburgh, UK; Senior Clinical Lecturer, Institute of Dentistry, University of Aberdeen, UK
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Schmohl L, Roesner AJ, Fuchs F, Wagner M, Schmidt MB, Hahnel S, Rauch A, Koenig A. Acid Resistance of CAD/CAM Resin Composites. Biomedicines 2022; 10:biomedicines10061383. [PMID: 35740405 PMCID: PMC9220078 DOI: 10.3390/biomedicines10061383] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 11/16/2022] Open
Abstract
Acid resistance of CAD/CAM resin composites. Erosion-related tooth surface loss is closely related to acid exposure, such as contact with acidic beverages or disease-related reflux. As a result, dental restorations in affected patients are also exposed to acids, which indicates that the performance and longevity of a dental restoration is impacted by the acid resistance of the individually employed restorative materials. However, unlike for ceramic materials, the acid resistance of CAD/CAM resin composites is not commonly evaluated by the manufacturers, and no standardised test methods have yet been established. Against this background, the present in vitro study aimed to examine the long-term resistance of CAD/CAM resin composites (Brilliant Crios, Cerasmart, Grandio blocs, Lava Ultimate, Shofu Block HC) against three acidic media (tonic water, acetic acid, hydrochloric acid) as well as demineralized water and to investigate potential damage mechanisms. Changes in surface roughness (Sa) were detected by confocal laser scanning microscopy (CLSM), and changes in surface hardness were measured using Vickers hardness (HV). The damage mechanisms were analysed by scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS) and micro X-ray computer tomography (µXCT). For each material, few changes in either Sa or HV were identified for at least one of the different media; for Cerasmart, the sharpest deterioration in surface properties was observed. SEM–EDS revealed leaching of barium, aluminium, and titanium from fillers in a 2 µm zone on the rough but not on the polished surface of the specimen. Within the limitations of the current study, it can be concluded that polished CAD/CAM resin composites can be recommended for clinical use in patients with erosive conditions.
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Affiliation(s)
- Leonie Schmohl
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
- Correspondence:
| | - Anuschka Josephine Roesner
- Department of Prosthetic Dentistry, Faculty of Medicine, Medical Center, Center for Dental Medicine University of Freiburg, Hugstetter Straße 55, 79106 Freiburg, Germany;
| | - Florian Fuchs
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
| | - Maximilian Wagner
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
- Department of Functional Surfaces, Leibniz Institute for Surface Engineering, Permoserstraße 15, 04318 Leipzig, Germany
| | - Michael Benno Schmidt
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Sebastian Hahnel
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Angelika Rauch
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Andreas Koenig
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103 Leipzig, Germany; (F.F.); (M.W.); (M.B.S.); (S.H.); (A.R.); (A.K.)
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Pai S, Antony DP, Sandeep AH. Association of age with class VI composite restoration. Bioinformation 2021; 16:1094-1099. [PMID: 34938009 PMCID: PMC8600195 DOI: 10.6026/973206300161094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 10/27/2020] [Accepted: 10/27/2020] [Indexed: 11/23/2022] Open
Abstract
Dental caries is the major oral health problem in most of the countries, affecting 60-90% of school children and a vast majority of adults. Therefore, it is of interest to evaluate the association of age with Class VI defects restored with composite restorations.
We used 102 cases with data regarding Class VI composite restorations in a datasheet of 86,000 records at Saveetha Dental College, India for this study. Data shows that Class VI restorations were commonly seen in upper anterior teeth in the age group of 51 and above.
The cavities prepared to receive Class VI restoration followed a conservative design of caries removal and used direct restoration techniques for reconstruction of the lost tooth structure.
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Affiliation(s)
- Sneha Pai
- Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 77, India
| | - Delphine Priscilla Antony
- Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 77, India
| | - Adimulapu Hima Sandeep
- Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 77, India
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Yang Y, Pu TT, Chen L, Tan JG. [Morphology accuracy evaluation of direct composite occlusal veneer using two types of modified stamp-technique]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2021; 53:977-982. [PMID: 34650305 PMCID: PMC8517663 DOI: 10.19723/j.issn.1671-167x.2021.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To evaluate the morphology accuracy of direct occlusal veneer using two types of modified stamp-technique, comparing the Results of two types of stamp and different composite resin. METHODS Model scanner was used to get the original data from the standard resin teeth in plastic model. Two types of stamps were made: solid silicon stamp and transparent silicon stamp. In the study, 54 resin tooth were randomly divided into 9 groups: Groups 1-8 were restored by direct composite resin, using general and bulk-filled composite resin in occlusal veneer (1 mm or 2 mm) with two types of stamp-technique (the solid silicon, and the transparent silicon), and the control group was restored by indirect way using CAD/CAM composite resin restoration by biocopy technique to mimic the original shape of the teeth. After the resin teeth were prepared for occlusal veneer, the direct and indirect composite resins were restored. After the restoration was finished, the data were obtained again by the same model scanner in the plastic model. 3D comparisons were made using the original and restoration data, the average difference and the root mean square of difference (RMS) were recoded from the software. The RMS of all the groups were analyzed using one way ANOVA (α=0.05). RESULTS The RMS of occlusal surface in solid silicon stamp group was (0.136±0.031) mm, in transparent silicon group was (0.130±0.024) mm, and in control group was (0.130±0.009) mm. There were no significant difference. While the RMS of buccal/lingual surface in solid silicon stamp group was the smallest [(0.135±0.020) mm, P < 0.05], and in transparent silicon group it was (0.147±0.021) mm, and control group (0.153±0.014) mm. The general composite resin using the two types of stamp had the largest occlusal RMS in 2 mm occlusal veneer, which were significantly larger than control group (P < 0.05). CONCLUSION The direct occlusal veneer using two types of modified "stamp-technique" had relatively good morphology accuracy. Direct occlusal veneer using bulk-filled composite resin made with two types of stamp technique had even more accurate morphology than using general composite resin. The solid silicon stamp had a better morphology accuracy in buccal/lingual surface than the transparent silicon stamp.
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Affiliation(s)
- Y Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - T T Pu
- Dental Laboratory, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - L Chen
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - J G Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
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16
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Crins LAMJ, Opdam NJM, Kreulen CM, Bronkhorst EM, Sterenborg BAMM, Huysmans MCDNJM, Loomans BAC. Randomized controlled trial on the performance of direct and indirect composite restorations in patients with severe tooth wear. Dent Mater 2021; 37:1645-1654. [PMID: 34497023 DOI: 10.1016/j.dental.2021.08.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 07/09/2021] [Accepted: 08/19/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The study aimed to evaluate survival and failure behavior of Direct Composite Restorations (DRC) and Indirect Composite Restorations (ICR) on molars and anterior teeth, in a Randomized Controlled Trial (RCT). METHODS Patients with generalized severe tooth wear were included, and randomly assigned to one of 2 protocols: (1) DCR: All teeth were restored with directly applied micro-hybrid composite restorations (Clearfil AP-X, Kuraray) for load bearing areas and nano-hybrid composite restorations (IPS Empress Direct, Ivoclar Vivadent) for buccal veneers; (2) ICR: First molars were restored with indirect composite 'tabletop' restorations and maxillary anterior teeth were restored with indirect palatal veneer restorations (Clearfil Estenia C&B, cemented with Panavia F, Kuraray). Remaining teeth were restored directly. Restorations were evaluated after 3 years, focusing on clinical acceptability. Statistical analysis was performed using Kaplan Meier curves, Annual Failure Rates (AFRs), and univariate Cox regression analyses (p < 0.05). RESULTS 41 patients (age: 36.6 ± 6.6y) were evaluated after 3 years (40.0 ± 2.2 m). 408 restorations on first molars and palatal veneers on maxillary anterior teeth were part of this RCT, with 220 DCRs and 188 ICRs. No differences in survival between treatment modality for palatal veneers for any failure criteria were found. Tabletop restorations on first molars showed a considerable higher failure rate for ICR compared to DCR (p = 0.026, HR: 3.37, 95%CI = 1.16-9.81). SIGNIFICANCE In this RCT, directly applied composite restorations showed superior behavior compared to the indirect composite restorations, when used in the molar region.
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Affiliation(s)
- L A M J Crins
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands.
| | - N J M Opdam
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands
| | - C M Kreulen
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands
| | - E M Bronkhorst
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands
| | - B A M M Sterenborg
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands
| | - M C D N J M Huysmans
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands
| | - B A C Loomans
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, The Netherlands
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17
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Mehta SB, Lima VP, Bronkhorst EM, Crins L, Bronkhorst H, Opdam NJM, Huysmans MCDNJM, Loomans BAC. Clinical performance of direct composite resin restorations in a full mouth rehabilitation for patients with severe tooth wear: 5.5-year results. J Dent 2021; 112:103743. [PMID: 34229000 DOI: 10.1016/j.jdent.2021.103743] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES To evaluate the 5.5-year performance of direct resin composite restorations, prescribed for patients with severe tooth wear, requiring full-mouth rehabilitation. METHODS A convenience sample of 34 patients were recruited to a prospective trial between December 2010 and June 2013. The participants were provided 1269 full-mouth direct resin composite restorations (Clearfil AP-X) by 5 experienced operators, using the DSO-technique. Treatment resulted in an increase in the vertical dimension of occlusion (VDO). Failure was assessed at three levels. Frequencies of failure were analysed using Kaplan Meier survival curves and the effects of the relevant variables calculated with a multifactorial Cox regression (p < 0.05). RESULTS Annual failure rates (for all levels of failure, 'Level 3- ') of ≤ 2.2% and ≤ 2.9% were respectively reported for the anterior and posterior restorations with a mean observation time of 62.4 months. The completion of an anterior restoration with the need for further appointments resulted in significantly more Level 2- & 3- failures. An evaluation of the performance of the premolar and posterior maxillary restorations showed significantly lowered risks of certain types of failures, compared to the molar and posterior mandibular restorations. CONCLUSIONS At 5.5 years, 2.3% of the overall restorations displayed catastrophic, (Level 1) failures. Molar restorations, posterior mandibular restorations and the anterior restorations requiring two further sessions for completion, were associated with significantly higher risks for failure. CLINICAL SIGNIFICANCE Direct resin composite can offer an acceptable medium-term option for the treatment of severe, generalized tooth wear; molar restorations may require higher maintenance.
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Affiliation(s)
- Shamir B Mehta
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands; Department of Conservative & MI Dentistry, Unit of Distance Learning, King's College London Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Campus, London.
| | - Verônica P Lima
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands; Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Ewald M Bronkhorst
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Luuk Crins
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Hilde Bronkhorst
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Niek J M Opdam
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | | | - Bas A C Loomans
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
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Tauböck TT, Schmidlin PR, Attin T. Vertical Bite Rehabilitation of Severely Worn Dentitions with Direct Composite Restorations: Clinical Performance up to 11 Years. J Clin Med 2021; 10:jcm10081732. [PMID: 33923679 PMCID: PMC8073648 DOI: 10.3390/jcm10081732] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/07/2021] [Accepted: 04/13/2021] [Indexed: 01/13/2023] Open
Abstract
Our aim was to evaluate the clinical performance of direct composite restorations placed in patients with severely worn dentitions at an increased vertical dimension of occlusion, after up to 11 years. One hundred and sixty-four teeth in 13 patients with severely worn dentitions had been reconstructed with either microhybrid (first cohort; n = 59) or nanofilled (second cohort; n = 105) composite restorations at increased vertical dimension of occlusion using a wax-up-based template-aided placement technique. From the dental records, information about repair and replacement of restorations was obtained. Patients were clinically examined after a mean follow-up time of 10.7 years (first cohort) or 5.2 years (second cohort) using United States Public Health Service (USPHS) criteria. Subjective patient satisfaction was also recorded using visual analogue scales (VAS). The overall quality of the restorations was good with predominantly 'Alpha' and 'Bravo' scores, respectively. Nanofilled composite showed less surface degradation and better margin qualities than microhybrid composite. Of the 59 restored teeth in the first cohort, 13 restorations showed unfavorable events after 10.7 years, of which ten could be repaired. In the second cohort, 23 of 105 restorations showed unfavorable events, which could all be repaired. VAS scores revealed high patient satisfaction with the treatment approach. In conclusion, direct composite restorations placed at an increased vertical dimension of occlusion show good clinical long-term performance in patients with severe tooth wear.
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Vajani D, Tejani TH, Milosevic A. Direct Composite Resin for the Management of Tooth Wear: A Systematic Review. Clin Cosmet Investig Dent 2020; 12:465-475. [PMID: 33177882 PMCID: PMC7650139 DOI: 10.2147/ccide.s268527] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/07/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND This study systematically reviewed survival of direct composite to restore worn teeth. MATERIALS AND METHODS A comprehensive electronic search of databases sourced from Medline-PubMed, Embase, Cochrane Central, Scopus, Google scholar was performed on literature published between January 1990 and December 2018. Grey literature was also reviewed. Data extraction included sample size, number of composite restorations, operators, composite type, mean or total follow-up time and success rate expressed as either percent of successful restorations or median survival time (MST). Methodological quality was rated using the Joanna Briggs Institute appraisal checklist for case series. Studies on children, non-carious cervical lesions, cast and all-ceramic restorations, case reports and case series with <5 participants were excluded. RESULTS A total of 1563 studies were identified and 1472 were screened. Sixty-two full-text papers were assessed for eligibility which resulted in 10 studies that met inclusion criteria. These were mainly case series and assessed 3844 direct composite restorations placed in 373 patients mostly in hospital settings. Survival ranged from 50% to 99.3%. Methodological quality improved from the earlier studies and was rated low to moderate in 7 studies and good in 3. The funnel plot showed a low risk of publication bias but there was considerable heterogeneity (I2=97.7%). There was a non-significant weak negative association between age and survival (Spearman's rho=-0.12). CONCLUSION Qualitative evaluation of the studies proved difficult because of the nature of case series but reporting improved in the later studies. Despite the generally short duration of studies, small sample sizes in terms of patient numbers and composite restorations, the survival rates of direct hybrid composite resin in the short to medium term are acceptable and support their application for the restoration of worn teeth.
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Affiliation(s)
- Disha Vajani
- Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University (MBRU) of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Tameeza Hassanali Tejani
- Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University (MBRU) of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Alexander Milosevic
- Department of Prosthodontics, Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University (MBRU) of Medicine and Health Sciences, Dubai, United Arab Emirates
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Erosion of CAD/CAM restorative materials and human enamel: An in situ/in vivo study. J Mech Behav Biomed Mater 2020; 110:103903. [DOI: 10.1016/j.jmbbm.2020.103903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/26/2020] [Accepted: 05/31/2020] [Indexed: 12/29/2022]
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21
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Kassardjian V, Andiappan M, Creugers NH, Bartlett D. A systematic review of interventions after restoring the occluding surfaces of anterior and posterior teeth that are affected by tooth wear with filled resin composites. J Dent 2020; 99:103388. [DOI: 10.1016/j.jdent.2020.103388] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 12/26/2022] Open
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Edelhoff D, Stimmelmayr M, Schweiger J, Ahlers MO, Güth JF. Advances in materials and concepts in fixed prosthodontics: a selection of possible treatment modalities. Br Dent J 2019; 226:739-748. [PMID: 31127218 DOI: 10.1038/s41415-019-0265-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The introduction of adhesive techniques in combination with translucent restorative materials has greatly influenced treatment concepts in fixed prosthodontics. Modern production technologies offer access to new polymer materials that provide innovative pre-treatment options for complex prosthetic rehabilitations. Additionally, computer-aided design and manufacturing (CAD/CAM) provides access to new ceramic types and thus extends the range of indications for metal-free restorative options. With these developments, important changes of treatment concepts in fixed prosthodontics have occurred which affect the professional life of dental practitioners with a focus on prosthetic dentistry. This article gives an overview of the advances in selected fields of fixed prosthodontics and provides support in material selection for different kinds of indications, from single-tooth restorations to fixed dental prostheses.
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Affiliation(s)
- Daniel Edelhoff
- Director and Chair, Department of Prosthetic Dentistry, University Hospital, LMU, Munich, Germany.
| | - Michael Stimmelmayr
- Associate Professor, Department of Prosthetic Dentistry, University Hospital, LMU, Munich, Germany
| | - Josef Schweiger
- Dental Technician, Head of Dental Laboratory, Department of Prosthetic Dentistry, University Hospital, LMU, Munich, Germany
| | - M Oliver Ahlers
- Department of Prosthetic Dentistry, Centre for Dental and Oral Medicine, University Medical Centre Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany; Director, CMD-Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Jan-Frederik Güth
- Associate Professor, Department of Prosthetic Dentistry, University Hospital, LMU, Munich, Germany
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23
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Impact of restorative treatment of tooth wear upon masticatory performance. J Dent 2019; 88:103159. [DOI: 10.1016/j.jdent.2019.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 05/22/2019] [Accepted: 06/21/2019] [Indexed: 11/23/2022] Open
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Fatigue resistance of ultrathin CAD/CAM ceramic and nanoceramic composite occlusal veneers. Dent Mater 2019; 35:1370-1377. [PMID: 31351578 DOI: 10.1016/j.dental.2019.07.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 06/06/2019] [Accepted: 07/10/2019] [Indexed: 11/21/2022]
Abstract
OBJECTIVE The fracture resistance of different ultrathin occlusal computer-aided design/computer-aided manufacturing (CAD/CAM) veneers was investigated under cyclic mechanical loading to restore combined enamel-dentin defects. METHODS Eighty-four molars were reduced occlusally until extensive dentin exposure occurred with a remaining enamel ring. Twenty-four molars were ground flat for examination of highly standardized specimens, of which 8 were treated with uniformly flat 0.3mm IPS Empress CAD and 0.3 and 0.5mm IPS e.max CAD restorations. Sixty-four molars were anatomically prepared until dentin exposure and were restored using occlusal veneers with fissure/cusp thicknesses of 0.3/0.5mm from 3 different dental CAD/CAM materials: IPS Empress CAD, IPS e.max CAD and Lava Ultimate CAD/CAM. Teeth were etched with 37% phosphoric acid, and occlusal veneers were bonded using an adhesive luting system (Syntac Primer, Adhesive, Heliobond and Variolink II). Specimens were placed under cyclic mechanical loading in a chewing simulator (1 million cycles at 50N) and were examined for cracks after each cyclic loading sequence. The anatomical 0.3/0.5mm IPS e.max CAD specimens experienced an additional 1 million cycles at 100N. Kaplan-Meier survival curves and log-rank tests were used for data analysis. RESULTS All highly standardized and 0.3/0.5mm IPS e.max CAD specimens tolerated cyclic loading. One anatomical Lava Ultimate CAD/CAM and 10 IPS Empress CAD specimens showed cracks. SIGNIFICANCE Ultrathin occlusal veneers of lithium disilicate ceramic and nanoceramic composite showed remarkably high fracture strength under cyclic mechanical loading. These veneers might be a tooth substance preserving option for restoring combined dentin-enamel defects.
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Edelhoff D, Güth JF, Erdelt K, Brix O, Liebermann A. Clinical performance of occlusal onlays made of lithium disilicate ceramic in patients with severe tooth wear up to 11 years. Dent Mater 2019; 35:1319-1330. [PMID: 31256912 DOI: 10.1016/j.dental.2019.06.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 06/11/2019] [Accepted: 06/17/2019] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Evaluation of survival and complication rate of monolithic occlusal onlays made of lithium disilicate ceramic used in patients with severe tooth wear up to 11years of clinical service. METHODS In a prospective non-randomized clinical study 7 patients (4 male, 3 female; median age: 44.3±6.56years old) were restored full mouth with a total of 103 adhesively bonded occlusal onlays made of lithium disilicate ceramic (IPS e.max Press, Ivoclar Vivadent, Schaan, Liechtenstein). All restorations were examined during annual recall visits using periodontal parameters according to the modified United States Public Health Service (USPHS) criteria: (a) marginal discoloration, (b) secondary caries, (c) marginal integrity, (d) surface texture, (e) restoration fracture, and (f) occlusal wear, rating with Alpha, Bravo and Charlie over an observation period up to 11years (68-139 months; median: 94.9±26.1 months). Data was statistically analyzed using the Kaplan-Meier estimation. RESULTS Monolithic lithium disilicate occlusal onlays presented a 100% survival rate. Four restorations within one patient (3.9%) presented marginal discoloration, one after 60 and three after 108 months (all rated Bravo). One restoration (1%) showed a marginal crack formation (technical complication) after 120 months, rated Bravo. No biological complication, debonding or secondary caries could be found and tested periodontal parameters showed excellent results. SIGNIFICANCE Based on the analyzed data up to 11years, monolithic occlusal onlays made of lithium disilicate ceramic can be considered as a reliable treatment option for full-mouth rehabilitations in patients with severe tooth wear.
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Affiliation(s)
- D Edelhoff
- Department of Prosthetic Dentistry, University Hospital, LMU Munich, Goethestrasse 70, 80336 Munich, Germany
| | - J F Güth
- Department of Prosthetic Dentistry, University Hospital, LMU Munich, Goethestrasse 70, 80336 Munich, Germany
| | - K Erdelt
- Department of Prosthetic Dentistry, University Hospital, LMU Munich, Goethestrasse 70, 80336 Munich, Germany
| | - O Brix
- Innovative Dentaldesign Oliver Brix, Kisseleffstraße 1a, 61348 Bad Homburg, Germany
| | - A Liebermann
- Department of Prosthetic Dentistry, University Hospital, LMU Munich, Goethestrasse 70, 80336 Munich, Germany.
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Osiewicz MA, Werner A, Roeters FJM, Kleverlaan CJ. Wear of direct resin composites and teeth: considerations for oral rehabilitation. Eur J Oral Sci 2019; 127:156-161. [DOI: 10.1111/eos.12600] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Magdalena A. Osiewicz
- Department of Integrated Dentistry; Jagiellonian University; Krakow Poland
- Department of Dental Materials Science; Academic Centre for Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit Amsterdam; Amsterdam the Netherlands
| | - Arie Werner
- Department of Dental Materials Science; Academic Centre for Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit Amsterdam; Amsterdam the Netherlands
| | - Franciscus J. M. Roeters
- Department of Comprehensive Dentistry; Academic Centre for Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit Amsterdam; Amsterdam the Netherlands
| | - Cornelis J. Kleverlaan
- Department of Dental Materials Science; Academic Centre for Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit Amsterdam; Amsterdam the Netherlands
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Wegehaupt FJ, Attin T. [Tooth Erosions Associated with Gastroesophageal Reflux: Cause, Prevention and Restorative Therapy]. PRAXIS 2019; 108:307-313. [PMID: 30940043 DOI: 10.1024/1661-8157/a003184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Tooth Erosions Associated with Gastroesophageal Reflux: Cause, Prevention and Restorative Therapy Abstract. Dental erosions are caused by the recurring contact of solutions which are unsaturated in tooth minerals,ith hard tooth substances. This initially leads to softening and later to an irreversible loss of hard tooth substance. Erosion is observed particularly with excessive consumption of acidic foods (e.g. soft drinks or citrus fruits) but also in connection with gastrointestinal (gastroesophageal reflux disease) or psychosomatic diseases (anorexia nervosa or bulimia nervosa). The aim of this article is to define dental erosions, their causes, prevalence and consequences as well as possible preventive measures. Based on a clinical example of a patient with reflux-related erosions, a therapy option with direct composite tooth build-up is presented.
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Affiliation(s)
- Florian J Wegehaupt
- 1 Klinik für Präventivzahnmedizin, Parodontologie und Kariologie, Zentrum für Zahnmedizin, Universität Zürich
| | - Thomas Attin
- 1 Klinik für Präventivzahnmedizin, Parodontologie und Kariologie, Zentrum für Zahnmedizin, Universität Zürich
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Mainjot AKJ. The One step-No prep technique: A straightforward and minimally invasive approach for full-mouth rehabilitation of worn dentition using polymer-infiltrated ceramic network (PICN) CAD-CAM prostheses. J ESTHET RESTOR DENT 2018; 32:141-149. [PMID: 30367707 DOI: 10.1111/jerd.12432] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/25/2018] [Accepted: 09/10/2018] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To introduce a novel approach for full-mouth rehabilitation of severely worn dentition using polymer-infiltrated ceramic network (PICN) computer-aided-design and manufacturing (CAD-CAM) restorations, without tooth tissue preparation and provisional phase. CLINICAL CONSIDERATIONS Three patients with generalized tooth wear, suffering from dental pain, masticatory dysfunction, bruxism and neck and back pain, were selected and treated in collaboration with physiotherapists. Occlusal analyses were performed and full-mouth diagnostic wax-ups were designed on the basis of estimated tissue loss. Deficient direct restorations were replaced and low-thickness PICN (Vita Enamic) restorations (up to 0.2 mm) were CAD-CAM designed from wax-ups, milled, tried-in and then bonded within two consecutive days. To mask palatal veneers, either buccal direct composites or glass-ceramic veneers were later performed. An occlusal splint was realized. Clinical results were shown to be successful after a follow-up of 22, 18, and 13 months, respectively. The absence of provisional phase did not engender any inconveniences. Patient reported outcomes were very positive, showing a reduction in neck and back pain and a well-being increase. CONCLUSION The proposed protocol is particularly minimally invasive and straightforward compared to classical techniques. PICNs exhibit several advantages compared to other materials. Preliminary results of this multidisciplinary approach are promising but deserve further clinical research. CLINICAL SIGNIFICANCE The development of CAD-CAM technologies offers the possibility of improving treatment of severe worn dentition, reducing chairtime and need of tooth tissue preparation, and introducing a new class of composite materials (hybrid ceramics), which exhibit interesting properties for this indication. The influence of the proposed multidisciplinary approach, particularly the collaboration with physiotherapists, needs to be further explored with respect to treatment of associated symptoms, such as masticatory muscles hypertrophy and neck pain.
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Affiliation(s)
- Amélie Karine Jacques Mainjot
- Dental Biomaterials Research Unit (d-BRU) and Department of Fixed Prosthodontics, University and University Hospital Center (CHU) of Liége, Liège, Belgium
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Pini NP, De Marchi LM, Ramos AL, Pascotto RC. Minimally Invasive Adhesive Rehabilitation for a Patient With Tooth Erosion: Seven-year Follow-up. Oper Dent 2018; 44:E45-E57. [PMID: 30142039 DOI: 10.2341/17-181-t] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Tooth wear is a multifactorial condition of growing concern. In clinical practice, it is often a challenge for prevention and treatment since many etiological factors may be involved. This case report describes an esthetic rehabilitation of a young patient presenting tooth wear due to erosion. The etiological factor of this case was the patient sucking on lemons, an acidic fruit. The main complaint of the patient was the appearance of short maxillary incisors. The treatment involved orthodontic and restorative dentistry techniques. First of all, an orthodontic device was used to increase the vertical dimension of occlusion and create an adequate space for the direct restorations. The posterior teeth were restored with two direct composite resin techniques; the anterior teeth were then restored using a balanced occlusion. The seven-year follow-up of the case is presented. Replicas of the restorations were made and visualized under scanning electron microscopy up to the 12-month evaluation. In the clinical follow-up at seven years, maintenance of the results and restorations can be clearly seen.
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Milosevic A. Clinical guidance and an evidence-based approach for restoration of worn dentition by direct composite resin. Br Dent J 2018; 224:301-310. [PMID: 29495026 DOI: 10.1038/sj.bdj.2018.168] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2017] [Indexed: 11/09/2022]
Abstract
This paper aims to provide the dentist with practical guidance on the technique for direct composite restoration of worn teeth. It is based on current evidence and includes practical advice regarding type of composite, enamel and dentine preparation, dentine bonding and stent design. The application of direct composite has the advantage of being additive, conserving as much of the remaining worn tooth as possible, ease of placement and adjustment, low maintenance and reversibility. A pragmatic approach to management is advocated, particularly as many of the cases are older patients with advanced wear. Several cases restored by direct composite build-ups illustrate what can be achieved. The restoration of the worn dentition may be challenging for many dentists. Careful planning and simple treatment strategies, however, can prove to be highly effective and rewarding. By keeping any intervention as simple as possible, problems with high maintenance are avoided and management of future failure is made easier. An additive rather than a subtractive treatment approach is more intuitive for worn down teeth. Traditional approaches of full-mouth rehabilitation with indirect cast or milled restorations may still have their place but complex treatment modalities will inevitably be more time consuming, more costly, possibly require specialist care and still have an unpredictable outcome. Composite resin restorations are a universal restorative material familiar to dentists from early-on in the undergraduate curriculum. This review paper discusses the application of composite to restore the worn dentition.
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Affiliation(s)
- A Milosevic
- Head of Prosthodontics, Building 34, Hamdan Bin Mohamed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai Healthcare City, POB 505055, Dubai, UAE
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31
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Rees JS, Somi S. A guide to the clinical management of attrition. Br Dent J 2018; 224:319-323. [PMID: 29495028 DOI: 10.1038/sj.bdj.2018.169] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2017] [Indexed: 11/09/2022]
Abstract
Attrition is an enigmatic condition often found in older individuals and often as a result of bruxism which can take place as a result of either day bruxism, night bruxism or both. Various studies and systemic reviews clearly shown that tooth wear is an age-related phenomena and the last Adult Dental Health Survey showed that 15% of participants showed moderate wear and 3% severe wear with 80% of patients over 50 years of age showing signs of wear. This review examines current theories around the aetiological factors contributing to attrition together with the clinical management of attrition focusing on minimal intervention where possible.
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Affiliation(s)
- J S Rees
- Cardiff University Dental School, Heath Park, Cardiff, CF14 4XY
| | - S Somi
- Cardiff University Dental School, Heath Park, Cardiff, CF14 4XY
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Abstract
This paper explains a conservative, pragmatic and minimally invasive intervention concept for the treatment of severe tooth wear patients based on the Radboud Tooth Wear Project in the Netherlands. Guidelines and flowcharts for management of severe tooth wear patients and rehabilitation in increased vertical dimension of occlusion are presented. We concluded that: (a) Restorative treatment is not always indicated, even for patients with severe tooth wear. (b) If the patient has no complaints, counselling and monitoring is probably the best option. (c) Minimally invasive and adhesive restorative strategies are preferred when severe tooth wear patients are to be treated in increased vertical dimension, especially when young patients are involved. (d) Clinical evidence for a suitable restorative treatment protocol is limited to five-year follow up for direct composites. This material seems to be suitable for rehabilitation in increased vertical dimension on the middle long term. Clinical results for indirect techniques are not available yet. (e) Restorations, including those that are considered 'definitive' may prove to have a limited lifetime in patients with severe tooth wear due to bruxism and erosion. Explanation of the possible treatment options and expected complications should be included in the informed consent.
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Loomans B, Kreulen C, Huijs-Visser H, Sterenborg B, Bronkhorst E, Huysmans M, Opdam N. Clinical performance of full rehabilitations with direct composite in severe tooth wear patients: 3.5 Years results. J Dent 2018; 70:97-103. [DOI: 10.1016/j.jdent.2018.01.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/30/2017] [Accepted: 01/05/2018] [Indexed: 11/26/2022] Open
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The influence of management of tooth wear on oral health-related quality of life. Clin Oral Investig 2018; 22:2567-2573. [PMID: 29397468 PMCID: PMC6097042 DOI: 10.1007/s00784-018-2355-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 01/23/2018] [Indexed: 11/04/2022]
Abstract
Objective The purpose of this study was to identify the level of oral health-related quality of life and orofacial appearance in patients with moderate to severe tooth wear. Patients with and without a request for restorative treatment were included. Methods One hundred twenty-four patients (98 men, 26 women, mean age: 40.5 ± 8.8 years) with moderate to severe tooth wear were included. Patients without a request for help received a non-restorative treatment of counseling and monitoring. Patients with a request for restorative treatment were treated with a full rehabilitation using composite resin restorations. Oral Health Impact Profile (OHIP-NL) and Orofacial Esthetic Scale (OES-NL) questionnaires were filled in at baseline and after 1 year. Results Counseling and monitoring group: baseline OHIP-NL score was 0.4 ± 0.3, baseline summary score of OES-NL was 48 ± 7.0, and baseline impression score was 7.1 ± 1.2. Scores had not changed significantly after 1 year (p = 1.00 after Bonferroni correction).Restoration group: baseline OHIP-NL score was 0.8 ± 0.6, baseline summary score of OES-NL was 38 ± 10, and baseline impression score was 5.9 ± 1.5. Scores had improved significantly after 1 year (p < 0.001 after Bonferroni correction). Conclusions Counseling and monitoring did not result in a significant deterioration and restorative treatment resulted in a significant improvement of oral health-related quality of life (OHRQoL) and orofacial appearance in this patient group. Clinical significance In patients with moderate to severe tooth wear, without functional and esthetical problems, counseling and monitoring may be an appropriate treatment option. Restorative treatment in patients with a need for treatment results in an improved OHRQoL. OHIP and OES questionnaires may be used to monitor changes in clinically relevant symptoms.
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Klink A, Groten M, Huettig F. Complete rehabilitation of compromised full dentitions with adhesively bonded all-ceramic single-tooth restorations: Long-term outcome in patients with and without amelogenesis imperfecta. J Dent 2017; 70:51-58. [PMID: 29275170 DOI: 10.1016/j.jdent.2017.12.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 12/17/2017] [Accepted: 12/20/2017] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES This clinical follow-up evaluated the long-term outcome of full-mouth rehabilitations with adhesively bonded all-ceramic restorations in patients suffering from amelogenesis imperfecta (AI) or affected by extensive tooth wear including a loss of the vertical dimension of occlusion. MATERIALS AND METHODS Included for evaluation were all patients treated with adhesively bonded monolithic single-tooth restorations made of silicate or lithium disilicate ceramics; allowing a maximum four missing teeth and a facial feldspathic veneering of LDS anterior crowns. After treatment, patients have been enrolled in a recall program for dental check-ups including quality assessment of the restorations. Patients answered the oral health impact profile (OHIP-14) at their last visit. RESULTS Seventeen patients (mean age = 35 ± 18 years) were observed up to 16.5 years (mean: 6.2 ± 3.8 years). 12 out of 450 restorations failed due to core fracture (n = 7), tooth fracture (n = 2), one secondary caries, one chip-off grade 3, and one fixed dental prosthesis due to discomfort. The overall mean survival rate of the single-tooth restorations was estimated 99.4% at 5 and 91.4% at 10 years. The overall mean success rate was estimated 92.6% at 5 and 81.4% at 10 years, mainly due to chip-offs and crack formation (27 out of 31 relative failures). The mean annual failure rates (AFR) range between 1.5 and 2% over the years, but non-AI patients were affected more frequently by early technical complications in the facial veneering of anteriors, resulting in an AFR ranging between 5.2 and 4%. Quality assessment revealed stable color, form and marginal integrity in all patients up to ten years. The distribution of OHIP values is comparable to the representative sample of healthy patients. CONCLUSION Adhesively bonded single-tooth restorations provided a high clinical quality in the long-run. However, while the survival and success were excellent in AI patients, restorations in non-AI patients were affected by a higher complication rate, likely related to a higher risk profile due to a history of bruxism and tooth wear.
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Affiliation(s)
- Andrea Klink
- Department of Prosthodontics, Center for Dentistry, Oral Medicine, and Maxillofacial Surgery, Tuebingen University Hospital, Tübingen, Germany
| | - Martin Groten
- Department of Prosthodontics, Center for Dentistry, Oral Medicine, and Maxillofacial Surgery, Tuebingen University Hospital, Tübingen, Germany
| | - Fabian Huettig
- Department of Prosthodontics, Center for Dentistry, Oral Medicine, and Maxillofacial Surgery, Tuebingen University Hospital, Tübingen, Germany.
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Zanatta RF, Lungova M, Borges AB, Torres C, Sydow HG, Wiegand A. Microleakage and Shear Bond Strength of Composite Restorations Under Cycling Conditions. Oper Dent 2017; 42:E71-E80. [PMID: 28257259 DOI: 10.2341/16-132-l] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate microleakage and shear bond strength of composite restorations under different cycling conditions. METHODS AND MATERIALS Class V cavities were prepared in the buccal and lingual surfaces of 30 human molars (n=60). A further 60 molars were used to prepare flat enamel and dentin specimens (n=60 each). Cavities and specimens were divided into six groups and pretreated with an adhesive (self-etch/Clearfil SE Bond or etch-and-rinse/Optibond FL). Composite was inserted in the cavities or adhered to the specimens' surfaces, respectively, and submitted to cycling (control: no cycling; thermal cycling: 10,000 cycles, 5°C to 55°C; thermal/erosive cycling: thermal cycling plus storage in hydrochloric acid pH 2.1, 5 minutes, 6×/day, 8 days). Microleakage was quantified by stereomicroscopy in enamel and dentin margins after immersion in silver nitrate. Specimens were submitted to shear bond strength testing. Statistical analysis was done by two-way analysis of variance and Kruskal-Wallis tests (p<0.05). RESULTS Microleakage in enamel margins was significantly lower in the control group compared with thermal cycling or thermal/erosive cycling. Erosive conditions increased microleakage compared with thermal cycling (significant only for Clearfil SE Bond). No significant differences were observed in dentin margins. Bond strength of enamel specimens was reduced by thermal cycling and thermal/erosive cycling when Clearfil SE Bond was used and only by thermal/erosive cycling when Optibond FL was used. No differences were observed among dentin specimens. CONCLUSIONS Thermal/erosive cycling can adversely affect microleakage and shear bond strength of composite resin bonded to enamel.
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Opdam N, Frankenberger R, Magne P. From 'Direct Versus Indirect' Toward an Integrated Restorative Concept in the Posterior Dentition. Oper Dent 2016; 41:S27-S34. [PMID: 26918928 DOI: 10.2341/15-126-lit] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Traditionally, indirect restorations are expected to have better longevity than direct restorations. The introduction of adhesive dentistry and the minimally invasive approach of restorative treatment has changed this. In this article, the differences in longevity between direct and indirect restorations in the posterior dentition are explained. In addition, the advantages and disadvantages of direct and indirect restorations placed in a minimally invasive way and using a proper adhesive technique are described.
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Opdam NJM, Skupien JA, Kreulen CM, Roeters JJM, Loomans BAC, Huysmans MCDNJM. Case Report: A Predictable Technique to Establish Occlusal Contact in Extensive Direct Composite Resin Restorations: The DSO-Technique. Oper Dent 2016; 41:S96-S108. [DOI: 10.2341/13-112-t] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
This paper describes the application technique of direct shaping by occlusion (DSO) for large composite restorations including the entire occlusal surface. For this technique, matrix bands and wedges are inserted without interference with antagonists in the desired occlusion. The final increment of soft-composite resin is shaped by letting the patient occlude on the uncured composite. Due to the nature of the technique, special care has to be taken for moisture control and handling of contamination. The procedure, advantages, and limitations of the technique are discussed.
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Affiliation(s)
- NJM Opdam
- Niek JM Opdam, DDS, PhD, associate professor, Radboud Institute for Molecular Life Sciences, Department of Dentistry, Radboud university medical center, Nijmegen, The Netherlands
| | - JA Skupien
- Jovito A Skupien, DDS, MSc, PhD, adjunct professor, School of Dentistry, Franciscan University Center, Santa Maria, Brazil
| | - CM Kreulen
- Cees M Kreulen, DDS, PhD, associate professor, Radboud Institute for Molecular Life Sciences, Department of Dentistry, Radboud university medical center, Nijmegen, The Netherlands
| | - JJM Roeters
- Joost JM Roeters, DDS, PhD, professor, Department of Restorative Dentistry, ACTA (Academic Centre for Dentistry), Amsterdam, The Netherlands
| | - BAC Loomans
- Bas AC Loomans, DDS, PhD, assistant professor, Radboud Institute for Molecular Life Sciences, Department of Dentistry, Radboud university medical center, Nijmegen, The Netherlands
| | - MC DNJM Huysmans
- Marie-Charlotte DNJM Huysmans, DDS, PhD, professor and head, Radboud Institute for Molecular Life Sciences, Department of Dentistry, Radboud university medical center, Nijmegen, The Netherlands
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Loomans B, Hilton T. Extended Resin Composite Restorations: Techniques and Procedures. Oper Dent 2016; 41:S58-S67. [DOI: 10.2341/15-212-lit] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
This article gives an overview of the state of the art of different restorative treatment procedures and techniques needed for placing extended posterior resin composite restorations. Clinical aspects related to the procedure are discussed and reviewed based on the current literature, such as the use of proper adhesive restorative materials, use of liners and bases, moisture control, reconstruction of proximal contacts, extended resin composite restorations, and techniques to address restoring teeth with deep subgingival margins.
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Affiliation(s)
- B Loomans
- Bas Loomans, DDS, PhD, Radboud Institute for Molecular Life Sciences, Department of Dentistry, Radboud university medical center, Nijmegen, PO Box 9101, Nijmegen 6500 HB, The Netherlands
| | - T Hilton
- Thomas Hilton, DMD, MS, Department of Restorative Dentistry, Oregon Health and Science University, 2730 S.W. Moody Ave. Portland, OR 97201-0007, USA
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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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Sterenborg BAMM, Maal TJ, Vreeken RD, Loomans BA, Huysmans MCDNJM. 3D Facial Effects of a Simulated Dental Build-up. J ESTHET RESTOR DENT 2016; 28:397-404. [DOI: 10.1111/jerd.12228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Bernadette A. M. M. Sterenborg
- Department of Dentistry; Radboud University Medical Center, Radboud Institute for Health Sciences; Nijmegen The Netherlands
| | - Thomas J.J. Maal
- 3D Facial Imaging Research Group, Department of Oral and Maxillofacial Surgery; Radboud University Medical Center; Nijmegen The Netherlands
| | - Rinaldo D. Vreeken
- 3D Facial Imaging Research Group, Department of Oral and Maxillofacial Surgery; Radboud University Medical Center; Nijmegen The Netherlands
| | - Bas A.C. Loomans
- Department of Dentistry; Radboud University Medical Center, Radboud Institute for Health Sciences; Nijmegen The Netherlands
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Mesko ME, Sarkis-Onofre R, Cenci MS, Opdam NJ, Loomans B, Pereira-Cenci T. Rehabilitation of severely worn teeth: A systematic review. J Dent 2016; 48:9-15. [DOI: 10.1016/j.jdent.2016.03.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 03/04/2016] [Accepted: 03/05/2016] [Indexed: 11/27/2022] Open
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Kramer MR, Edelhoff D, Stawarczyk B. Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin. MATERIALS 2016; 9:ma9020083. [PMID: 28787884 PMCID: PMC5456469 DOI: 10.3390/ma9020083] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 01/21/2016] [Accepted: 01/25/2016] [Indexed: 11/28/2022]
Abstract
To test the impact of preheating (25, 37, 54, or 68 °C) of TetricEvoCeram (TEC), FiltekSupremeXT (FSXT), and Venus (V) on flexural strength (FS), shear bond strength (SBS) and interfacial tension (IFT). FS was tested with TEC and FSXT. For SBS, glass-ceramic and human dentin substrate were fabricated and luted with the preheated resin composite (RC). SBSs of 1500 thermal cycled specimens were measured. For IFT, glass slides covered with the non-polymerized RC were prepared and contact angles were measured. Data were analyzed using 2/1-way ANOVA with Scheffé-test, and t-test (p < 0.05). Preheated TEC (37–68 °C) showed higher FS compared to the control-group (25 °C) (p < 0.001). FSXT presented higher FS than TEC (p < 0.001). For SBS to dentin higher values for FSXT than TEC were found. The preheating temperature showed no impact on SBS to dentin. SBS to glass-ceramic revealed a positive influence of temperature for TEC 25–68 °C (p = 0.015). TEC showed higher values than V and FSXT (p < 0.001). IFT values increased with the preheating temperature. A significant difference could be observed in every RC group between 25 and 68 °C (p < 0.001).
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Affiliation(s)
- Matthias Richard Kramer
- Department of Prosthodontics, Dental School, Ludwig-Maximilians-University Munich, Goethestrasse 70, 80336 Munich, Germany.
| | - Daniel Edelhoff
- Department of Prosthodontics, Dental School, Ludwig-Maximilians-University Munich, Goethestrasse 70, 80336 Munich, Germany.
| | - Bogna Stawarczyk
- Department of Prosthodontics, Dental School, Ludwig-Maximilians-University Munich, Goethestrasse 70, 80336 Munich, Germany.
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The survival of direct composite restorations in the management of severe tooth wear including attrition and erosion: A prospective 8-year study. J Dent 2016; 44:13-9. [DOI: 10.1016/j.jdent.2015.10.015] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 09/22/2015] [Accepted: 10/21/2015] [Indexed: 11/17/2022] Open
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Abduo J, Tennant M. Impact of lateral occlusion schemes: A systematic review. J Prosthet Dent 2015; 114:193-204. [PMID: 25957242 DOI: 10.1016/j.prosdent.2014.04.032] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 04/21/2014] [Indexed: 01/09/2023]
Abstract
STATEMENT OF PROBLEM Although several lateral occlusion philosophies have been proposed in the literature, there is a lack of compelling evidence supporting any scheme. PURPOSE The purpose of this systematic review was to investigate the clinical implications of different lateral occlusion schemes. MATERIAL AND METHODS A literature search was completed through PubMed (MEDLINE), Google Scholar, and Cochrane Library, up to January 2014. The literature search aimed to retrieve 2 study categories: group 1: comparative studies; group 2: clinical outcome studies. The inclusion criteria were peer-reviewed human clinical studies published in English. The search was further supplemented by manual searching through the reference lists of the selected studies. RESULTS The initial search revealed a total of 680 studies; however, after applying the inclusion criteria, 26 studies were found suitable for the analysis (13 for group 1 and 13 for group 2). The most commonly evaluated lateral occlusion schemes were canine-guided occlusion (CGO) and group function occlusion (GFO). Group 1 studies evaluated the impact of lateral occlusion schemes on muscular electromyographic (EMG) activity, condylar displacement, mastication, and mandibular movement. Group 2 studies evaluated the impact of restored occlusion on longevity, patient comfort, and pathologic consequences. CGO was associated with narrower mastication and less EMG activity of the masticatory muscles during clenching. GFO was associated with wider mandibular movement and quicker mastication. During mastication, there was no difference in EMG activity between the 2 lateral occlusion schemes. Furthermore, the long-term studies indicated that there is no difference between the 2 schemes in patient comfort and restoration longevity. CONCLUSION Although there are immediate differences between the different lateral occlusion schemes, patients have the capability to successfully adapt to CGO or GFO.
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Affiliation(s)
- Jaafar Abduo
- Senior Lecturer, Melbourne Dental School, School of Anatomy, Physiology and Human Biology, University of Western Australia, Crawley, Western Australia, Australia.
| | - Marc Tennant
- Professor, School of Anatomy, Physiology and Human Biology, School of Anatomy, Physiology and Human Biology, University of Western Australia, Crawley, Western Australia, Australia
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Osiewicz MA, Werner A, Pytko-Polonczyk J, Roeters FJ, Kleverlaan CJ. Contact- and contact-free wear between various resin composites. Dent Mater 2015; 31:134-40. [DOI: 10.1016/j.dental.2014.11.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 11/12/2014] [Accepted: 11/12/2014] [Indexed: 10/24/2022]
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St Germain HA, Jenkins JF. Conservative Restoration of Worn Mandibular Anterior Teeth Combining Gingival Repositioning and a Template Matricing Technique. Oper Dent 2015; 40:462-9. [PMID: 25575202 DOI: 10.2341/14-201-t] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Conservative resin composite restoration of worn mandibular anterior teeth may offer an alternative option to full-coverage restorations for the patient. Assessment of the occlusal condition is critical because alterations in occlusal vertical dimension may not always be possible. By exposing additional coronal tooth structure, periodontal crown-lengthening procedures can serve to increase clinical crown height when adequate attached gingival tissue is present and supra-eruption has likely occurred. Fabrication of a custom template made from a diagnostic mock-up with proximal stainless steel matrices helps contribute to a predictable restorative result and improves chairside efficiency for the dental practice. By combining gingival crown lengthening, bonding of resin composite material, and selective occlusal adjustment; a short to medium-term, conservative option can be made available for the patient.
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Al-Salehi SK. Restorative Management of Intrinsic and Extrinsic Dental Erosion. J Indian Prosthodont Soc 2014. [DOI: 10.1007/s13191-013-0274-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Hamburger JT, Opdam NJ, Bronkhorst EM, Roeters JJ, Huysmans MCD. Effect of thickness of bonded composite resin on compressive strength. J Mech Behav Biomed Mater 2014; 37:42-7. [DOI: 10.1016/j.jmbbm.2014.05.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 05/03/2014] [Indexed: 11/26/2022]
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Banerji S, Mehta S, Kamran T, Kalakonda M, Millar B. A multi-centred clinical audit to describe the efficacy of direct supra-coronal splinting – A minimally invasive approach to the management of cracked tooth syndrome. J Dent 2014; 42:862-71. [DOI: 10.1016/j.jdent.2014.02.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/02/2014] [Accepted: 02/20/2014] [Indexed: 11/28/2022] Open
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