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Shah N, Nerkar H, Badwaik P, Ahuja B, Malu R, Bhanushali N. An evaluation of antagonist enamel wear opposing full-coverage zirconia crowns versus other ceramics full-coverage crowns and natural enamel - An umbrella review. J Indian Prosthodont Soc 2024; 24:217-224. [PMID: 38946503 DOI: 10.4103/jips.jips_32_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/09/2024] [Indexed: 07/02/2024] Open
Abstract
AIM The aim of this umbrella review was to systematically review the systematic reviews on antagonist enamel wear opposing zirconia crowns compared to other ceramics and natural enamel. SETTINGS AND DESIGN This was an umbrella review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. MATERIALS AND METHODS An electronic search of PubMed, Cochrane Central, EBSCOhost, and Google Scholar search engines for articles published from January 1, 2013, to January 1, 2023, was conducted using keywords "enamel wear," "zirconia," "feldspathic," "dental ceramics," and "Y-TZP" to identify systematic reviews on antagonist enamel wear opposing zirconia crowns compared to other ceramics and natural enamel. STATISTICAL ANALYSIS USED Qualitative analysis. RESULTS A total of 86 articles were obtained through electronic search, of which four articles were selected after abstract screening that met the inclusion criteria for evaluating antagonist enamel wear. As compared to feldspathic groups, zirconia had substantially less antagonist wear, while surface polishing exhibited less enamel wear than glazing. Because of the heterogeneity in study design, measurement methods, and outcome variables, a meta-analysis was not possible. CONCLUSIONS Over time, the opposing enamel wear caused by polished monolithic zirconia will be either equal to or less than that of natural enamel wear. Polished monolithic zirconia also maintains lower values of enamel wear compared to metal ceramics, feldspathic porcelains, and lithium disilicate.
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Affiliation(s)
- Naisargi Shah
- Department of Prosthodontics and Crown and Bridge and Terna Dental College, Navi Mumbai, Maharashtra, India
| | - Harshada Nerkar
- Department of Prosthodontics and Crown and Bridge and Terna Dental College, Navi Mumbai, Maharashtra, India
| | - Praveen Badwaik
- Department of Prosthodontics and Crown and Bridge and Terna Dental College, Navi Mumbai, Maharashtra, India
| | - Bhavna Ahuja
- Department of Prosthodontics and Crown and Bridge and Terna Dental College, Navi Mumbai, Maharashtra, India
| | - Rahul Malu
- Department of Prosthodontics and Crown and Bridge and Terna Dental College, Navi Mumbai, Maharashtra, India
| | - Nikhil Bhanushali
- Department of Public Health Dentistry, Terna Dental College, Navi Mumbai, Maharashtra, India
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Ong JEX, Blum IR. Evidence-based clinical management of localised tooth wear and a repeatedly dislodged posterior crown utilising the Dahl Concept. Prim Dent J 2024; 13:58-64. [PMID: 38888073 DOI: 10.1177/20501684241249558] [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: 06/20/2024]
Abstract
This clinical case report demonstrates the use of the Dahl Concept in the management of the repeated dislodgement of a posterior full coverage crown associated with a reduced restorative space. The described technique harnesses the addition of resin composite and a temporarily cemented provisional full coverage crown to create sufficient restorative space for the cementation of a definitive posterior full coverage crown restoration at the six-month review.
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Affiliation(s)
- Joshua Ee Xin Ong
- Joshua Ee Xin Ong BDS, MOSc, MJDF RCS (Eng), MCGDent (UK) Trainee Dental Lecturer, Centre of Restorative Dentistry Studies, Faculty of Dentistry, MARA University of Technology, Jalan Hospital, Sungai Buloh, Selangor, Malaysia Specialist Trainee in Prosthodontics, Guy's Hospital, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
- Igor R. Blum DDS, PhD, Dr Med Dent, MSc, MA (Educ), MFDS RCS (Eng), MFDS RCS (Edin), FDS (Rest Dent) RCS (Eng), FFDRCSI, FCGDent, PGCHE, FHEA, FICD, LLM (Medico-Legal Law) Professor/Consultant & Specialist in Restorative Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Igor R Blum
- Joshua Ee Xin Ong BDS, MOSc, MJDF RCS (Eng), MCGDent (UK) Trainee Dental Lecturer, Centre of Restorative Dentistry Studies, Faculty of Dentistry, MARA University of Technology, Jalan Hospital, Sungai Buloh, Selangor, Malaysia Specialist Trainee in Prosthodontics, Guy's Hospital, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
- Igor R. Blum DDS, PhD, Dr Med Dent, MSc, MA (Educ), MFDS RCS (Eng), MFDS RCS (Edin), FDS (Rest Dent) RCS (Eng), FFDRCSI, FCGDent, PGCHE, FHEA, FICD, LLM (Medico-Legal Law) Professor/Consultant & Specialist in Restorative Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
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Schlenz MA, Schlenz MB, Wöstmann B, Glatt AS, Ganss C. Intraoral scanner-based monitoring of tooth wear in young adults: 36-month results. Clin Oral Investig 2024; 28:350. [PMID: 38822893 PMCID: PMC11144131 DOI: 10.1007/s00784-024-05740-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 05/24/2024] [Indexed: 06/03/2024]
Abstract
OBJECTIVES The study continues our longitudinal observation of wear aiming to further monitoring of progression and lesion morphology and to identify relationships with assumed aetiological factors. MATERIALS AND METHODS Molars (FDI #36 or #46) of 74 participants (23.8 ± 2.2 years) were scanned (Trios 3, 3Shape) at the third follow-up (T3; observation period 1,111 ± 10 days). Data sets from T3, T2 (24-month follow-up) and T1 (12-month follow-up) were superimposed with baseline in a 3D analysis software (GOM Inspect). Wear was quantified as maximum vertical tissue loss (µm; median, 95% CI) in various occlusal areas (4/5 cusps and 2 ridges). Morphologies were classified into cupping (C), facet (F), and combined cupping-facet (CF). Aetiological factors were assessed with questionnaires. RESULTS Wear increased at T3 significantly at low rates in all areas of the occlusal surface (median between 7.0 (4.0;10.5) and 9.5 (6.0;15.0) µm). There was a clear trend for higher loss values in males, but no association with other factors such as nutrition. C and CF showed significantly higher loss values than F. Areas without initial wear developed F first, which either persisted or developed into C and CF. CONCLUSIONS Wear continued at low rates with C/CF morphology and sex as significant factors. Cupped lesions seem to develop from facets and thus may not be a valid diagnostic criterion for erosive tooth wear. CLINICAL RELEVANCE Wear is a cumulative process that apparently follows complex mechanisms that cannot be conceptualized in simplified terms; C and CF may be indicators for higher progression rates.
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Affiliation(s)
| | - Moritz Benedikt Schlenz
- Department of Oral and Maxillofacial Surgery, Dr. Horst Schmidt Clinic Wiesbaden, Wiesbaden, Germany
| | - Bernd Wöstmann
- Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Giessen, Germany
| | - Anna Sophia Glatt
- Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Giessen, Germany
| | - Carolina Ganss
- Department of Conservative and Preventive Dentistry, Dental Clinic of the Justus Liebig University Giessen, Giessen, Germany
- Department of Operative Dentistry, Endodontics and Paediatric Dentistry, Section Cariology of Aging, Dental Clinic of the Philipps-University Marburg, Marburg, Germany
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Mao Z, Beuer F, Hey J, Schmidt F, Sorensen JA, Prause E. Antagonist enamel tooth wear produced by different dental ceramic systems: A systematic review and network meta-analysis of controlled clinical trials. J Dent 2024; 142:104832. [PMID: 38211687 DOI: 10.1016/j.jdent.2024.104832] [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: 10/30/2023] [Revised: 12/14/2023] [Accepted: 01/04/2024] [Indexed: 01/13/2024] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the amount of enamel tooth wear induced by different antagonistic ceramic crown materials in the posterior area within a follow-up period up to 24 months in function. A network meta-analysis was performed to assess the effect of the materials on the mean vertical loss (MVL) of the antagonist enamel tooth surface. DATA Main search terms used in combination: ceramic, dental materials, metal ceramic, tooth wear and dental enamel. SOURCES An electronic search was conducted in PubMed/Medline, Embase, and Cochrane CENTRAL plus hand-searching. STUDY SELECTION Eligibility criteria included clinical studies reporting on MVL on antagonist's tooth up to 24 months following the permanent crown placement. From a total of 5697 articles, 7 studies reporting on 261 crowns for 177 subjects with 3 ceramic materials (Lithium disilicate, metal-ceramic, monolithic zirconia) were included. Among all, metal-ceramic and zirconia caused significantly higher enamel tooth wear on antagonist teeth, representing 82.5 µm [54.4; 110.6]) and 40.1 µm [22.2; 58.0]) more MVL than natural teeth group. In contrast, lithium disilicate showed only 5.0 µm [-48.2; 58.1]) more MVL than occurs on opposing natural teeth. CONCLUSIONS This systematic review demonstrated that prosthodontic ceramic materials produced significantly more antagonist enamel tooth wear than opposing natural enamel tooth wear, and ceramic material type was correlated to the degree of enamel tooth wear. Additional well-conducted, randomized controlled trials with homogeneous specimens are required due to inadequate sample size and number of the clinical studies included in the analyses. CLINICAL SIGNIFICANCE The amount of wear caused by different restorative materials has a high influence on the antagonistic natural teeth and should therefore be evaluated intensively by the dentist.
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Affiliation(s)
- Zhen Mao
- 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.
| | - 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
| | - Jeremias Hey
- Department of Prosthodontics, School of Dental Medicine, Martin-Luther-University, 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
| | - John A Sorensen
- Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, USA
| | - 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
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Mangoush E, Garoushi S, Vallittu P, Lassila L. Load-bearing capacity and wear characteristics of short fiber-reinforced composite and glass ceramic fixed partial dentures. Eur J Oral Sci 2023; 131:e12951. [PMID: 37641165 DOI: 10.1111/eos.12951] [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: 08/04/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
The aim of this study was to evaluate load-bearing capacity and wear performance of experimental short fiber-reinforced composite (SFRC) and conventional lithium-disilicate CAD/CAM fabricated fixed partial dentures (FPDs). Two groups (n = 12/group) of three-unit CAD/CAM fabricated posterior FPDs were made. The first group used experimental SFRC blocks, and the second group fabricated from lithium-disilicate (IPS e.max CAD). All FPDs were luted on a zirconia testing jig with dual-curing resin cement. Half of FPDs per group were quasi-statically loaded until fracture. The other half experienced cyclic fatigue aging (100.000 cycles, Fmax = 500 N) before loading quasi-statically until fracture. Fracture mode was examined using SEM. Wear test was performed using 15,000 loading cycles. Both material type and aging had a significant effect on the load-bearing capacity of FPDs. Experimental SFRC CAD without fatigue aging had significantly the highest load-bearing capacity (2096 ± 149N). Cyclic fatigue aging decreased the load-bearing capacity of the SFRC group (1709 ± 188N) but increased it for the lithium-disilicate group (1546 ± 155N). Wear depth values of SFRC CAD (29.3μm) were significantly lower compared to lithium-disilicate (54.2μm). Experimental SFRC CAD demonstrated the highest load-bearing capacity before and after cyclic fatigue aging, and superior wear behavior compared to the control material.
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Affiliation(s)
- Enas Mangoush
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
| | - Sufyan Garoushi
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
| | - Pekka Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
- Wellbeing Services County of South-West Finland, Turku, Finland
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
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Schlenz MA, Schlenz MB, Wöstmann B, Glatt AS, Ganss C. Intraoral scanner-based monitoring of tooth wear in young adults: 24-month results. Clin Oral Investig 2023; 27:2775-2785. [PMID: 36625960 PMCID: PMC10264267 DOI: 10.1007/s00784-023-04858-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/02/2023] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Tooth wear causes irreversible cumulated surface loss and already occurs at a young age. Therefore, the objective of this clinical prospective observational study was to monitor the occlusal surface of a mandibular first molar in young adults for a period of 24 months. Furthermore, potential aetiological factors obtained by a questionnaire were considered. MATERIALS AND METHODS The study teeth (FDI #36 or #46) of 81 participants (mean age 22.8 ± 2.2 years) were scanned with the intraoral scanner (IOS, Trios 3, 3Shape) at the second follow-up (T2) after an observation period of 24 months. Standard-tessellation-language datasets were superimposed with baseline (T0) and T2 scans in 3D analysis software (GOM Inspect). The maximum vertical substance loss was measured between T0 and T2 at 6/7 areas (4/5 cusps and 2 ridges) of each study tooth and data compared to the already published data of the first follow-up (T1) after 12-month observation period. The morphology of tooth wear was classified into three groups: cupping (C), facet (F) and combined cupping-facet (CF). The analysis of aetiological factors, such as acid impacts, was based on a questionnaire filled out by participants at time points T0, T1 and T2. Non-parametric tests were used for statistical analysis (p < 0.05). RESULTS The buccal load-bearing cusps (mesiobuccal: median 15 μm, 95%CI 11/18 μm; mesiolingual 8 μm, 0/11 μm) were most affected by tooth wear. Loss values increased significantly at T2 compared to T1 for all areas, although significantly less than in the first 12 months (T0-T1). Areas that already exhibited F at T0 mostly displayed them also at T2 and only rarely developed further into C or CF. The only association between aetiological factors and loss values could be detected for sex as males had significantly higher loss values than females. CONCLUSIONS Progression of tooth wear could be clearly shown with high interindividual variations in loss values among participants. This indicates the need for individual monitoring with IOS. CLINICAL RELEVANCE IOSs show the potential for patient-specific monitoring to detect the progression of tooth wear. Thus, data of 24 months fills the gap of tooth wear data for young adults in literature. Further studies over a longer observation period are highly recommended to gain more information about the dynamic of tooth wear and aetiological factors.
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Affiliation(s)
- Maximiliane Amelie Schlenz
- Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Schlangenzahl 14, 35392, Giessen, Germany.
| | - Moritz Benedikt Schlenz
- Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Schlangenzahl 14, 35392, Giessen, Germany
| | - Bernd Wöstmann
- Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Schlangenzahl 14, 35392, Giessen, Germany
| | - Anna Sophia Glatt
- Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Schlangenzahl 14, 35392, Giessen, Germany
| | - Carolina Ganss
- Department of Conservative and Preventive Dentistry, Dental Clinic of the Justus Liebig University Giessen, Giessen, Germany
- Department of Operative Dentistry, Endodontics and Paediatric Dentistry, Section Cariology, Dental Clinic of the Philipps-University Marburg, Marburg, Germany
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