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Alawa D, Karkoutly M, Milly H. Esthetic Rehabilitation with No-Preparation Veneers Applying BOPT: A Case Report with a 12-Month Follow-Up. Case Rep Dent 2024; 2024:6620612. [PMID: 38973809 PMCID: PMC11226340 DOI: 10.1155/2024/6620612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/01/2024] [Accepted: 06/17/2024] [Indexed: 07/09/2024] Open
Abstract
A 45-year-old female patient was referred to the Department of Cosmetic Dentistry, Damascus University, seeking to improve dental aesthetics. The clinical examination showed a low smile line and microdontia in the maxillary arch. The treatment plan consisted of applying no-prep veneers with gingival modification, which is described in the biologically oriented preparation technique (BOPT) as a gingitage technique. The gingitage of the sulcus was performed using a yellow ring diamond flame with an inclination of 45 degrees, which causes it to bleed and creates a space between the internal wall of the sulcus and the axial wall of the tooth. After a 12-month follow-up, the gingiva was free of inflammation, recession, and plaque, and there was no increase in probing depth, according to the modified gingival index (MGI), gingival recession index (GRI), Silness-Loe plaque index (PI), and the community periodontal index of treatment needs (CPITN), respectively. The porcelain veneers were intact, with no chippings, cracks, and marginal discoloration. The patient was satisfied with her new smile.
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Affiliation(s)
- Dima Alawa
- Department of Cosmetic DentistryDental InstituteDamascus University, Damascus, Syria
| | - Mawia Karkoutly
- Department of Pediatric DentistryDamascus University, Damascus, Syria
| | - Hussam Milly
- Department of Conservative Dentistry and EndodonticsDental InstituteDamascus University, Damascus, Syria
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Díaz-Flores García V, Freire Y, David Fernández S, Gómez Sánchez M, Tomás Murillo B, Suárez A. Intraoral Scanning for Monitoring Dental Wear and Its Risk Factors: A Prospective Study. Healthcare (Basel) 2024; 12:1069. [PMID: 38891145 PMCID: PMC11171938 DOI: 10.3390/healthcare12111069] [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: 04/24/2024] [Revised: 05/13/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Dental wear arises from mechanical (attrition or abrasion) and chemical (erosion) factors. Despite its prevalence and clinical significance, accurately measuring and understanding its causes remain challenging in everyday practice. This one-year study with 39 participants involved comprehensive examinations and full-arch intraoral scans at the start and after 12 months. Volume loss exceeding 100 µ on each tooth's surfaces (buccal, lingual/palatine and incisal/occlusal) was measured by comparing three-dimensional scans from both time points. This study also assessed factors such as abrasion and erosion through clinical exams and questionnaires. There were no significant differences in dental wear in participants with sleep bruxism. However, noticeable wear occurred in the front teeth of those with waking bruxism and joint-related symptoms. Increased wear was associated with frequent consumption of acidic drinks, regular swimming, dry mouth, nocturnal drooling and heartburn, while no significant wear was found in patients with reflux. The used methodology proved effective in accurately assessing the progression of dental wear, which is important as many patients may initially be asymptomatic. The variability observed in dental wear patterns underscores the need to develop specific software applications that allow immediate and efficient comparison of wear areas based on extensive analysis of patient databases.
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Affiliation(s)
- Víctor Díaz-Flores García
- Department of Pre-Clinical Dentistry, School of Biomedical Sciences, Universidad Europea de Madrid, Calle Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (V.D.-F.G.); (A.S.)
| | - Yolanda Freire
- Department of Pre-Clinical Dentistry, School of Biomedical Sciences, Universidad Europea de Madrid, Calle Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (V.D.-F.G.); (A.S.)
| | - Susana David Fernández
- Department of Clinical Dentistry, School of Biomedical Sciences, Universidad Europea de Madrid, Calle Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain
| | - Margarita Gómez Sánchez
- Department of Pre-Clinical Dentistry, School of Biomedical Sciences, Universidad Europea de Madrid, Calle Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (V.D.-F.G.); (A.S.)
| | - Beatriz Tomás Murillo
- Department of Pre-Clinical Dentistry, School of Biomedical Sciences, Universidad Europea de Madrid, Calle Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (V.D.-F.G.); (A.S.)
| | - Ana Suárez
- Department of Pre-Clinical Dentistry, School of Biomedical Sciences, Universidad Europea de Madrid, Calle Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (V.D.-F.G.); (A.S.)
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Elraggal A, Abdelraheem IM, Watts DC, Roy S, Dommeti VK, Alshabib A, Althaqafi KA, Afifi RR. Biomechanical reinforcement by CAD-CAM materials affects stress distributions of posterior composite bridges: 3D finite element analysis. Dent Mater 2024; 40:869-877. [PMID: 38609774 DOI: 10.1016/j.dental.2024.04.001] [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: 02/17/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024]
Abstract
OBJECTIVES This 3D finite element analysis study aimed to investigate the effect of reinforcing CAD-CAM bars on stress distribution in various components of a posterior composite bridge. METHODS A virtual model mimicking the absence of an upper second premolar was created, featuring class II cavity preparations on the proximal surfaces of the adjacent abutment teeth surrounding the edentulous space. Five distinct finite element analysis (FEA) models were generated, each representing a CAD-CAM reinforcing bar material: 3-YTZP (IPS. emax ZirCAD MO; Zr), lithium disilicate (IPS e.max CAD; EX), nano-hybrid resin composite (Grandio Blocs; GB), Fibre-reinforced composite (Trilor; Tri), and polyetheretherketone (PEEK). A veneering resin composite was employed to simulate the replacement of the missing premolar (pontic). In the FEA, an axial force of 600 N and a transverse load of 20 N were applied at the center of the pontic. Subsequently, maximum von Mises (mvM) and maximum principal stresses (σmax) were computed across various components of the generated models. Additionally, shear stresses at the interface between the CAD-CAM bars and the veneering resin composite were determined. RESULTS CAD-CAM materials with high modulus of elasticity, such as Zr and EX, exhibited the highest mvM stresses and shear stresses while transferring the lowest stress to the veneering resin composite in comparison to other materials. Conversely, PEEK demonstrated the lowest mvM stresses but produced the highest stresses within the veneering resin composite. There was a uniform distribution of mvM stresses in the remaining tooth structure among all groups, except for a noticeable elevation in the molar region of Zr and EX groups. SIGNIFICANCE Reinforcing CAD-CAM bar materials with a high modulus of elasticity, such as Zr and EX, may result in debonding failures at the connector sites of posterior composite bridges. Conversely, GB, PEEK, and Tri have the potential to cause fracture failures at the connectors rather than debonding.
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Affiliation(s)
- Alaaeldin Elraggal
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK; Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
| | - Islam M Abdelraheem
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - David C Watts
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Sandipan Roy
- Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Vamsi Krishna Dommeti
- Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Abdulrahman Alshabib
- Restorative Dentistry Department, Faculty of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Khaled Abid Althaqafi
- Restorative Dentistry Department, Faculty of Dentistry, College of Dental Medicine, University of Umm Al Qura, Makkah, Saudi Arabia
| | - Rania R Afifi
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Elraggal A, R Afifi R, Alamoush RA, Raheem IA, Watts DC. Effect of acidic media on flexural strength and fatigue of CAD-CAM dental materials. Dent Mater 2023; 39:57-69. [PMID: 36496258 DOI: 10.1016/j.dental.2022.11.019] [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: 08/08/2022] [Revised: 11/13/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To investigate the effect of acidic media, including beverages and gastric fluids on flexural strength and fatigue of CAD-CAM materials. METHODS Four CAD-CAM materials (high-translucency zirconia (Ceramill Zolid HT+), lithium disilicate (IPS e-max CAD), hybrid ceramic (Vita Enamic), and nanohybrid resin composite (Grandio Blocs) were prepared and immersed in one of five media (gastric HCl, white wine, Coca-Cola, orange juice, and artificial saliva) in an incubator (37 ℃, 24 h). Surface topography and roughness were obtained using a scanning electron microscope (SEM) and a stylus contact profilometer, respectively. Initial 3-point flexural strength was measured for half of the bars (n = 20/gp) using a universal testing machine (0.5 mm/min). The other bars underwent 106 cyclic fatigue loadings before measurement of residual 3-point flexural strength. Data were statistically analyzed (two-way and three-way ANOVA, Tukey's post-hoc, p < 0.05). Weibull distributions were plotted for reliability analysis. RESULTS Zirconia bars has the highest initial flexural strengths followed by lithium disilicate, while resin composite and hybrid ceramic groups had the lowest strength regardless of the erosive medium. Cyclic fatigue significantly reduced initial flexural strengths for all materials except for hybrid ceramic and resin composite. Weibull moduli were the highest for zirconia, lithium disilicate and resin composite and lowest for hybrid ceramic. SIGNIFICANCE Erosive media significantly changed surface roughness of CAD-CAM materials except for zirconia and resin composite without jeopardizing the flexural strength of the CAD-CAM materials. Despite the higher flexural strengths for zirconia and lithium disilicate, resin composite and hybrid ceramic were more resistant to cyclic fatigue.
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Affiliation(s)
- Alaaeldin Elraggal
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
| | - Rania R Afifi
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Rasha A Alamoush
- Department of Prosthodontics, School of Dentistry, The University of Jordan, Amman, Jordan
| | - Islam Abdel Raheem
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - David C Watts
- School of Medical Sciences, University of Manchester, Manchester, UK
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Inomata M, Harada A, Kasahara S, Kusama T, Ozaki A, Katsuda Y, Egusa H. Potential complications of CAD/CAM-produced resin composite crowns on molars: A retrospective cohort study over four years. PLoS One 2022; 17:e0266358. [PMID: 35390093 PMCID: PMC8989285 DOI: 10.1371/journal.pone.0266358] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/18/2022] [Indexed: 12/02/2022] Open
Abstract
Purpose Evaluation of the clinical performance of computer-aided design/computer-aided manufacturing-produced resin composite crowns (CAD/CAM composite crowns) on molars with a particular focus on placement location. Methods A retrospective cohort study was performed based on the clinical records of patients with CAD/CAM composite crowns on molars (June 2016 to March 2021). The hazard ratios (HRs) and 95% confidence intervals (95% CIs) were estimated based the Cox proportional hazard model to evaluate the effect of tooth location on complication type and occurrence. Covariates included crown location (maxilla/mandible, distalmost tooth/not distalmost tooth, and first molar/second or third molar) and endodontically treated (nonvital) or untreated (vital) tooth. Results Overall, 362 crowns were evaluated (mean follow-up: 378 days, median: 286 days), and 106 crowns (29.3%) showed complications, most frequently crown debonding. The cumulative success and survival rates were 70.9% and 93.7%, respectively, after 1 year and 49.5% and 86.5%, respectively, after 3 years. There was no significant difference in the HRs and log-rank tests in the Kaplan–Meier curves based on crown location parameters (P > 0.05). However, placement on vital teeth was associated with higher risks than on nonvital teeth (HR, 1.55; 95% CI, 1.03–2.23). In addition, the cement as a covariate yielded a high HR. Conclusions The location of CAD/CAM composite molar crowns is unlikely a risk factor for complications; therefore, these crowns can be clinically applied to all molars. However, the application of such molar crowns to vital teeth and the use of a cement other than adhesive resin cement present risks.
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Affiliation(s)
- Miyu Inomata
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Akio Harada
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
- * E-mail: (AH); (HE)
| | - Shin Kasahara
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Taro Kusama
- Division for Regional Community Development, Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Akane Ozaki
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yusuke Katsuda
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Hiroshi Egusa
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Division for Regional Community Development, Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- * E-mail: (AH); (HE)
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Salem MN, Hafez S. Aesthetic Management of Erosive Tooth Wear in a Young Egyptian Swimmer: A Case Report. Clin Cosmet Investig Dent 2021; 13:201-209. [PMID: 34079381 PMCID: PMC8164355 DOI: 10.2147/ccide.s308045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 04/23/2021] [Indexed: 11/23/2022] Open
Abstract
Background Tooth wear can have a multifactorial aetiology which requires thorough patient assessment and aesthetic management. Purpose This case report discusses the management of a young, Egyptian swimmer complaining of tooth sensitivity associated with erosive tooth wear. Anterior teeth were restored using the injection molding technique, also known as the injectable composite resin technique, to overcome the patient’s complaint and enhance the aesthetics of compromised anterior teeth. Patients and Methods Thorough patient assessment was followed by impression taking, a diagnostic wax-up and intraoral mock-up fabrication for aesthetic, functional and biological verification. Upon the patient’s agreement on the proposed treatment, an injection molding technique was carried out. Conclusion The tooth loss pattern associated with erosive tooth wear in competitive swimmers showed a very characteristic presentation. Detailed patient history is imperative for successful assessment of the risk factors contributing to the condition and treatment planning in such cases. The use of injection molding technique for restoration of anterior teeth is a simple, straightforward and aesthetically pleasing alternative for patients with erosive tooth wear requiring direct composite veneers.
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Affiliation(s)
- Mennatallah N Salem
- Conservative Dentistry Department, Operative Division, Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt.,Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Shereen Hafez
- Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
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Komine F, Honda J, Kusaba K, Kubochi K, Takata H, Fujisawa M. Clinical outcomes of single crown restorations fabricated with resin-based CAD/CAM materials. J Oral Sci 2020; 62:353-355. [PMID: 32741852 DOI: 10.2334/josnusd.20-0195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Computer-aided design/computer-aided manufacturing (CAD/CAM) restorative materials have been widely used owing to a number of advantages, including stable quality of the materials, lower costs, and time-saving factors. Resin-based CAD/CAM materials for definitive restorations are classified into two groups: dispersed nanoparticle-filled composite resin and polymer-infiltrated-ceramic-network materials. Resin-based CAD/CAM materials have been applied to single crown restorations as a monolithic structure for the posterior region. In addition, resin-based CAD/CAM restorations have been applied recently for the anterior area. This literature review summarizes clinical outcomes, such as survival rates and clinical complications of single crown restorations fabricated with resin-based CAD/CAM materials.
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Affiliation(s)
- Futoshi Komine
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
| | - Junichi Honda
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
| | - Kosuke Kusaba
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
| | - Kei Kubochi
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
| | - Hiroki Takata
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
| | - Masanori Fujisawa
- Division of Fixed Prosthodontics, Department of Restorative & Biomaterials Sciences, Meikai University School of Dentistry
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Survival Probability, Weibull Characteristics, Stress Distribution, and Fractographic Analysis of Polymer-Infiltrated Ceramic Network Restorations Cemented on a Chairside Titanium Base: An In Vitro and In Silico Study. MATERIALS 2020; 13:ma13081879. [PMID: 32316360 PMCID: PMC7216243 DOI: 10.3390/ma13081879] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 02/07/2023]
Abstract
Different techniques are available to manufacture polymer-infiltrated ceramic restorations cemented on a chairside titanium base. To compare the influence of these techniques in the mechanical response, 75 implant-supported crowns were divided in three groups: CME (crown cemented on a mesostructure), a two-piece prosthetic solution consisting of a crown and hybrid abutment; MC (monolithic crown), a one-piece prosthetic solution consisting of a crown; and MP (monolithic crown with perforation), a one-piece prosthetic solution consisting of a crown with a screw access hole. All specimens were stepwise fatigued (50 N in each 20,000 cycles until 1200 N and 350,000 cycles). The failed crowns were inspected under scanning electron microscopy. The finite element method was applied to analyze mechanical behavior under 300 N axial load. Log-Rank (p = 0.17) and Wilcoxon (p = 0.11) tests revealed similar survival probability at 300 and 900 N. Higher stress concentration was observed in the crowns’ emergence profiles. The MP and CME techniques showed similar survival and can be applied to manufacture an implant-supported crown. In all groups, the stress concentration associated with fractographic analysis suggests that the region of the emergence profile should always be evaluated due to the high prevalence of failures in this area.
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Egilmez F, Ergun G, Cekic-Nagas I, Vallittu PK, Lassila LVJ. Does artificial aging affect mechanical properties of CAD/CAM composite materials. J Prosthodont Res 2017. [PMID: 28647224 DOI: 10.1016/j.jpor.2017.06.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The purpose of this study was to determine the flexural strength and Weibull characteristics of different CAD/CAM materials after different in vitro aging conditions. METHODS The specimens were randomly assigned to one of the six in vitro aging conditions: (1) water storage (37°C, 3 weeks), (2) boiling water (24h), (3) hydrochloric acid exposure (pH: 1.2, 24h), (4) autoclave treatment (134°C, 200kPa, 12h), (5) thermal cycling (5000 times, 5-55°C), (6) cyclic loading (100N, 50,000 cycles). No treatment was applied to the specimens in control group. Three-point bending test was used for the calculation of flexural strength. The reliability of the strength was assessed by Weibull distribution. Surface roughness and topography was examined by coherence scanning interferometry. Evaluated parameters were compared using the Kruskall-Wallis or Mann-Whitney U test. RESULTS Water storage, autoclave treatment and thermal cycling significantly decreased the flexural strength of all materials (p<0.05), whereas HCl exposure or cyclic loading did not affect the properties (p>0.05). Weibull moduli of Cerasmart™ and Lava™ Ultimate were similar with control. Vita Enamic® exhibited similar Weibull moduli in all aging groups except the HCl treated group (p>0.05). Ra values of Cerasmart™ and Lava™ Ultimate were in the range of 0.053-0.088μm in the aged groups. However Ra results of Vita Enamic® were larger than 0.2μm. CONCLUSIONS Flexural strength of newly developed restorative CAD/CAM materials was significantly decreased by artificial aging. Cyclic loading or HCl exposure does not affect to the flexural strength and structural reliability of Cerasmart™ and Lava™ Ultimate.
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Affiliation(s)
- Ferhan Egilmez
- Gazi University Faculty of Dentistry, Department of Prosthodontics, Ankara, Turkiye.
| | - Gulfem Ergun
- Gazi University Faculty of Dentistry, Department of Prosthodontics, Ankara, Turkiye
| | - Isil Cekic-Nagas
- Gazi University Faculty of Dentistry, Department of Prosthodontics, Ankara, Turkiye
| | - Pekka K Vallittu
- Institute of Dentistry, Department of Biomaterials Science and Turku Clinical Biomaterials Centre - TCBC, University of Turku and City of Turku, Welfare Division, Turku, Finland
| | - Lippo V J Lassila
- Institute of Dentistry, Department of Biomaterials Science and Turku Clinical Biomaterials Centre - TCBC, Finland; Turku University of Applied Sciences, Turku, Finland
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Chirumamilla G, Goldstein CE, Lawson NC. A 2-year Retrospective Clinical study of Enamic Crowns Performed in a Private Practice Setting. J ESTHET RESTOR DENT 2016; 28:231-7. [PMID: 27219683 DOI: 10.1111/jerd.12206] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To evaluate the clinical performance and survival of Enamic crowns placed in a prosthodontic dental practice. METHODS Thirty-five patients and 45 crowns were included in the study. At 1-year recall appointments, the restorations were examined for survival. At the 2-year recall appointment, all restorations were clinically evaluated by an independent evaluator for CDA clinical criteria. Kaplan-Meier method and a log-rank test were used to compare the survival of the restorations placed with resin and resin-modified glass ionomer (RMGI) cements. RESULTS Out of the 45 crowns that were followed, 2 were lost to follow-up by 1 year and 7 were lost to follow-up by 2 years. Severe complications were observed in 2 teeth by the 2-year follow-up and were recorded as failures due to recurrent decay, and an internal crack in the abutment tooth. There was no difference between the survival probability for crowns cemented with resin cement (96.8%) and with RMGI cements (92.9%) (p = 0.42), however, 1 out of the 14 crowns cemented with RMGI cement debonded. The crowns were evaluated according the CDA criteria with over 90% alfa scores for all categories aside from surface texture (86% alfa). CONCLUSION The estimated 2-year survival of Enamic crowns is >90%. CLINICAL SIGNIFICANCE Based on the preliminary 2-year results achieved in a clinical practice, Enamic is a suitable material for full-coverage single-unit crowns. Further studies are necessary to evaluate the long term success. (J Esthet Restor Dent 28:231-237, 2016).
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Affiliation(s)
| | - Cary E Goldstein
- Private practice, Atlanta, GA, USA.,Department of Prosthodontics, Medical College of Georgia, Augusta, GA, USA
| | - Nathaniel C Lawson
- Division of Biomaterials, University of Alabama at Birmingham, Birmingham, AL, USA
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Pop-Ciutrila IS, Dudea D, Eugenia Badea M, Moldovan M, Cîmpean SI, Ghinea R. Shade Correspondence, Color, and Translucency Differences between Human Dentine and a CAD/CAM Hybrid Ceramic System. J ESTHET RESTOR DENT 2016; 28 Suppl 1:S46-55. [DOI: 10.1111/jerd.12195] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Ioana-Sofia Pop-Ciutrila
- Assistant Professor, Department of Conservative Dentistry and Endodontics; Iuliu Hatieganu University of Medicine and Pharmacy; Cluj-Napoca Romania
| | - Diana Dudea
- Professor, Department of Prosthodontics and Dental Materials; Iuliu Hatieganu University of Medicine and Pharmacy; Romania
| | - Mândra Eugenia Badea
- Professor, Department of Preventive Dentistry; Iuliu Hatieganu University of Medicine and Pharmacy; Cluj-Napoca Romania
| | - Mărioara Moldovan
- Researcher in Chemistry, Department of Polymeric Composites; Raluca Ripan Institute of Research in Chemistry, Babes Bolyai University; Cluj-Napoca Romania
| | - Sanda Ileana Cîmpean
- Assistant Professor, Department of Conservative Dentistry and Endodontics; Iuliu Hat6ieganu University of Medicine and Pharmacy; Cluj-Napoca Romania
| | - Razvan Ghinea
- Assistant Professor, Department of Optics, Faculty of Science; University of Granada; Campus de Fuentenueva s/n 18071 Granada Spain
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