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Rao LN, Shetty A, Dsouza N, Shetty H. Assessment of sealing efficacy, radiopacity, and surface topography of a bioinspired polymer for perforation repair. PeerJ 2024; 12:e17237. [PMID: 38699192 PMCID: PMC11064857 DOI: 10.7717/peerj.17237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/22/2024] [Indexed: 05/05/2024] Open
Abstract
Background Root perforation repair presents a significant challenge in dentistry due to inherent limitations of existing materials. This study explored the potential of a novel polydopamine-based composite as a root repair material by evaluating its sealing efficacy, radiopacity, and surface topography. Methods Confocal microscopy assessed sealing ability, comparing the polydopamine-based composite to the gold standard, mineral trioxide aggregate (MTA). Radiopacity was evaluated using the aluminium step wedge technique conforming to ISO standards. Surface roughness analysis utilized atomic force microscopy (AFM), while field emission scanning electron microscopy (FESEM) visualized morphology. Results The polydopamine-based composite exhibited significantly superior sealing efficacy compared to MTA (P < 0.001). Radiopacity reached 3 mm aluminium equivalent, exceeding minimum clinical requirements. AFM analysis revealed a smooth surface topography, and FESEM confirmed successful composite synthesis. Conclusion This study demonstrates promising properties of the polydopamine-based composite for root perforation repair, including superior sealing efficacy, clinically relevant radiopacity, and smooth surface topography. Further investigation is warranted to assess its clinical viability and potential translation to endodontic practice.
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Affiliation(s)
- Lakshmi Nidhi Rao
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Aditya Shetty
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Neevan Dsouza
- Department of Biostatistics, K S Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Heeresh Shetty
- Department of Conservative Dentistry and Endodontics, Nair Dental College, Mumbai, Maharashtra, India
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Ağaccıoğlu M, Yılmaz MN. The radiopacity of single-shade composite resins: A comparative evaluation. J ESTHET RESTOR DENT 2024; 36:527-533. [PMID: 38197214 DOI: 10.1111/jerd.13195] [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: 11/20/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/11/2024]
Abstract
OBJECTIVE The aim of this study was to evaluate the radiopacity of single-shade composite resins with group and multi-shade composite resins via a digital image analysis. MATERIALS AND METHODS Disc-shaped (5 mm in diameter, 2 mm in thickness) specimens were prepared with one multi-shade (Estelite Sigma Quick-ESQ), four single-shade (Omnichroma-OC, Charisma Topaz One-CTO, Vitra Unique-VU, and ZenChroma-ZC), three group-shade (G-aenial Achord-GA, Optishade-OS, and Estelite Asteria-EA), and one posterior composite resin (Estelite Posterior-EP) (n = 3). A radiographic image of all the specimens, an aluminum step-wedge, and a 2 mm thick tooth section were taken. Mean gray values (MGV) of the specimens, enamel, and dentin were calculated by ImageJ software. Composition analysis was performed with EDS, and SEM images (×10,000) were obtained. The data were analyzed with Kruskal-Wallis and Post hoc adjusted Bonferroni analysis (p = 0.05). RESULTS The mean MGV of CTO, the highest of all test groups, was significantly higher than OC and dentin (p = 0.04 and p = 0.009, relatively). The lowest mean MGV was also observed in a single-shade group, OC. EDS analysis showed that the tested materials comprised various radiopaque elements. CONCLUSIONS All of the single-shade and group-shade groups exceeded the MGV value of dentin, which is clinically expected from any restorative material. CLINICAL SIGNIFICANCE The radiopacity properties of various single-shade composite resins which as a category is a rising trend in esthetic dentistry were investigated. It is important for clinicians to be aware of novel materials' physical qualities including radiopacity, a daily clinical criteria for restorative materials.
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Affiliation(s)
- Merve Ağaccıoğlu
- Department of Restorative Dentistry, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Merve Nur Yılmaz
- Department of Restorative Dentistry, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey
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Kantovitz KR, Carlos NR, Silva IAPS, Braido C, Costa BC, Kitagawa IL, Nociti-Jr FH, Basting RT, de Figueiredo FKP, Lisboa-Filho PN. TiO 2 nanotube-based nanotechnology applied to high-viscosity conventional glass-ionomer cement: ultrastructural analyses and physicochemical characterization. Odontology 2023; 111:916-928. [PMID: 36917400 DOI: 10.1007/s10266-023-00799-9] [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: 04/05/2022] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
This study characterized TiO2 nanotube (TiO2-nt) ultrastructure and morphology, and the physicochemical impact on high-viscosity conventional glass-ionomer cement (GIC). TiO2-nt was synthesized by the alkaline method (n = 3), assessed by scanning (SEM) and transmission electron microscope (TEM), and was added (3%, 5%, 7%-in weight) to KM (Ketac Molar EasyMix™). Analyses included: SEM; Energy-dispersive spectroscopy (EDS); Raman spectroscopy (RAMAN); Setting time with Gillmore needles (ST); Color (Co); Radiopacity (XR); Water sorption (WS); and solubility (SO). Quantitative data were submitted to ANOVA and Tukey's tests (chr = 0.05). External and internal TiO2-nt diameters were 11 ± 2 nm and 6 ± 0 nm, respectively. Data analyses showed: (i) TiO2-nt present into KM matrix, with a concentration-dependent increase of Ti levels into KM, (ii) physical interaction between KM and TiO2-nt, (iii) longer initial ST for the 7% group compared to KM and 3% groups (p ≤ 0.01), (iv) decreased luminosity and yellowness for the 5% and 7% groups, (v) 36% greater radiopacity for the 5% group compared to enamel, dentin, and KM, and (vi) lower SO values for the 5% group, with no significant differences on WS across the groups. TiO2-nt displayed physical interaction with KM matrix, and also modified SO, XR and Co, without affecting ST. This study provides information on the potential impact of TiO2-nt on GIC performance. TiO2-nt may be proposed to boost confidence among dental surgeons in terms of GIC's handling characteristics, success rate and differential diagnostic.
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Affiliation(s)
| | - Natália Russo Carlos
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
| | | | - Caroline Braido
- Pediatric Division, Department of Health Sciences, Orthodontics and Pediatric Dentistry, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Bruna Carolina Costa
- Department of Physics, School of Science, São Paulo State University, UNESP, Bauru, SP, Brazil
| | - Igor Lebedenco Kitagawa
- Federal Institute of Education, Science and Technology of São Paulo, IFSP, Birigui, SP, Brazil
| | - Francisco Humberto Nociti-Jr
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
- Division of Periodontics, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Roberta Tarkany Basting
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
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Gündoğdu C, Akgül S. Radiopacity evaluation of different types of resin restorative materials using a digital radiography system. Oral Radiol 2023; 39:646-653. [PMID: 36920599 DOI: 10.1007/s11282-023-00679-6] [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: 11/17/2022] [Accepted: 03/02/2023] [Indexed: 03/16/2023]
Abstract
OBJECTIVES The aim of the study was to evaluate and compare the radiopacity of 20 current dental resin composites with digital radiography. METHODS Ten specimens, 10-mm in diameter and 1-mm thickness, were prepared and radiographed using phosphor plates close to Al step wedges and tooth sections. The mean grey values (MGVs) were measured using an ImageJ software program and converted to equivalent Al thickness. Data were analyzed using one-way analysis of variance (ANOVA) and Tamhane post hoc test (p < 0.05). Correlation between mean radiopacity and filler content (wt% and vol%) of the tested materials was analyzed with linear regression analysis. RESULTS The radiopacity of all composites ranged from 1.32 mm Al (Estellite Flow Quick) to 3.41 mm Al (Charisma Classic). All the tested materials, except four restorative materials, had a radiopacity equal or higher than the enamel (p < 0.05). Linear regression revealed low correlation between the radiopacity and filler content of the composite. CONCLUSION Majority of the materials has appropriate radiopacity for dental restorations. There was great variation in radiopacity level, may clinically affect the diagnosis.
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Affiliation(s)
- Ceyda Gündoğdu
- Department of Restorative Dentistry, Faculty of Dentistry, İstanbul Medipol University, TEM Avrupa Otoyolu Göztepe çıkışı no:1, 34214, Bağcılar-Istanbul, Turkey.
| | - Sinem Akgül
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek-Ankara, Turkey
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Sengupta A, Naka O, Mehta SB, Banerji S. The clinical performance of bulk-fill versus the incremental layered application of direct resin composite restorations: a systematic review. Evid Based Dent 2023; 24:143. [PMID: 37402908 PMCID: PMC10516750 DOI: 10.1038/s41432-023-00905-4] [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: 02/21/2023] [Accepted: 06/09/2023] [Indexed: 07/06/2023]
Abstract
OBJECTIVES To systematically review the scientific evidence comparing the clinical effectiveness of bulk-fill versus incrementally layered conventional resin composites and to evaluate if one method offers clear merits with specific clinical outcomes. MATERIALS AND METHODS Using relevant mesh terms and pre-established eligibility criteria in PubMed, Embase, Scopus and Web of Science, a thorough scientific search was conducted with an end-date of 30.04.2023. Randomized controlled clinical trials that involved the direct comparison of Class I and Class II resin composite restorations applied using incremental layering techniques versus bulk-filled in permanent teeth with an observation period of at least six months were considered. To evaluate the bias risk of the finalized records, a revised version of the Cochrane risk-of-bias tool for randomized trials was implemented. RESULTS Out of the 1445 records determined, 18 eligible reports were chosen for qualitative analysis. Data obtained was categorized as per, the cavity design, the intervention, the comparator(s), the methods of success/failure assessment, the outcomes, and follow-up. Two studies demonstrated an overall low-risk of bias, fourteen studies raised some concerns, and two studies exhibited high-risk. CONCLUSION Bulk filled resin composite restorations demonstrated clinical outcomes similar to those of incrementally layered resin composite restorations within a review interval of 6 months to 10 years.
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Affiliation(s)
- Arjita Sengupta
- Faculty of Dentistry Oral and Craniofacial Sciences, King's College London, London, UK
| | - Olga Naka
- Faculty of Dentistry Oral and Craniofacial Sciences, King's College London, London, UK.
- School of Dentistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Shamir B Mehta
- Faculty of Dentistry Oral and Craniofacial Sciences, King's College London, London, UK
| | - Subir Banerji
- Faculty of Dentistry Oral and Craniofacial Sciences, King's College London, London, UK
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A Comparative Evaluation of the Radiopacity of Contemporary Restorative CAD/CAM Blocks Using Digital Radiography Based on the Impact of Material Composition. Int J Biomater 2022; 2022:4131176. [PMID: 35237329 PMCID: PMC8885173 DOI: 10.1155/2022/4131176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/08/2022] [Accepted: 01/19/2022] [Indexed: 11/26/2022] Open
Abstract
Purpose The main purpose of this study was to assess the radiopacity of contemporary restorative computer-aided design (CAD)/computer-aided manufacturing (CAM) materials and the impact of material composition as measured by energy-dispersive X-ray spectrophotometry (EDX) on radiopacity. Materials and Methods Ten specimens of six CAD/CAM materials with 1 mm thickness were produced and then digitally radiographed with an aluminum (Al) step-wedge (SW) and 1 mm thick tooth slice. The specimen mean gray values (MGVs) were recorded in pixels and compared to an Al-SW, dentin, and enamel of equal thickness. For the elementary analysis of the composition of the materials, EDX was performed. Results The recorded MGVs ranged between 21.20 ± 4.94 and 238.5 ± 13.61 pixels. Materials were sorted according to the MGVs descendingly, Prettau, Vita Suprinity, Vita Enamic, Shofu, Pekkton, and BioHPP. Prettau and Vita Suprinity had significantly higher MGV than dentin and 1 mm thick Al. In comparison, Vita Enamic had a slightly higher value than dentin and 1 mm thick Al. Although Pekkton and BioHPP had MGV significantly lower than dentin and 1 mm thick Al, Shofu had a significantly lower value than dentin and nonsignificantly lower than 1 mm thick Al (p < 0.05). According to EDX analysis, the examined materials contained several components in varying quantities of radiopacity. Conclusions The radiopacity of only three studied materials exceeded the International Organization for Standardization's minimum standards (ISO).
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Nowak-Wachol A, Korytkowska-Wałach A, Chmiela B, Wachol K, Łopaciński M, Wyszyńska M, Al-Dulaimi Y, Skucha-Nowak M. Yttrium Trifluoride as a Marker of Infiltration Rate of Decalcified Root Cementum: An In Vitro Study. Polymers (Basel) 2022; 14:polym14040780. [PMID: 35215693 PMCID: PMC8880519 DOI: 10.3390/polym14040780] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/09/2022] [Accepted: 02/14/2022] [Indexed: 01/27/2023] Open
Abstract
Research related to the development of a dental infiltrant for minimally invasive treatment of initial caries of hard dental tissues is presented. The formulation of the developed infiltrant material includes typical methacrylate monomers used in dentistry, an author’s adhesion monomer containing metronidazole, a photoinitiating system and yttrium trifluoride (YF3). The main objective of the study was to evaluate penetration into decalcified root cementum using scanning electron microscope of an experimental preparation with the characteristics of a dental infiltrant compared to a commercial preparation with the addition of YF3 as a contrast agent. Microscopic observations showed that YF3 particles virtually did not penetrate deep into the root cementum—this was mainly due to the particle size of YF3. Observations of cementum and root dentin tissue infiltration: resin tissue infiltration was visible to a depth of about 80 to 120 μm without the use of a tracer, which, due to agglomeration and particle size, remained on the cementum surface or in the resin used for inlaying. There were no differences between the degree of penetration of an experimental preparation with the characteristics of a dental infiltrant, as compared to a commercial preparation.
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Affiliation(s)
- Anna Nowak-Wachol
- Department of Dental Propedeutics, Division of Medical Sciences in Zabrze, Doctoral School, Medical University of Silesia in Katowice, 15 Poniatowskiego Street, 40-055 Katowice, Poland
- Correspondence:
| | - Anna Korytkowska-Wałach
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, ul. Krzywoustego 4, 44-100 Gliwice, Poland;
| | - Bartosz Chmiela
- Department of Materials Technologies, Faculty of Materials Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland;
| | - Kacper Wachol
- Department of Oral Surgery, Division of Medical Sciences in Zabrze, Medical University of Silesia, 15 Poniatowskiego Street, 40-055 Katowice, Poland;
| | - Maciej Łopaciński
- Department of Periodontal and Oral Mucosa Diseases, Division of Medical Sciences in Zabrze, Medical University of Silesia, 15 Poniatowskiego Street, 40−055 Katowice, Poland;
| | - Magdalena Wyszyńska
- Department of Dental Material Sciences, Division of Medical Sciences in Zabrze, Medical University of Silesia, 15 Poniatowskiego Street, 40−055 Katowice, Poland;
| | - Yousuf Al-Dulaimi
- 5th Year Dentistry Program, Student Scientific Society in Department of Prosthetic Dentistry and Dental Material Sciences, Division of Medical Sciences in Zabrze, Medical University of Silesia, 15 Poniatowskiego Street, 40−055 Katowice, Poland;
| | - Małgorzata Skucha-Nowak
- Department of Dental Propedeutics, Division of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 15 Poniatowskiego Street, 40-055 Katowice, Poland;
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Yaylacı A, Karaarslan ES, Hatırlı H. Evaluation of the radiopacity of restorative materials with different structures and thicknesses using a digital radiography system. Imaging Sci Dent 2021; 51:261-269. [PMID: 34621653 PMCID: PMC8479437 DOI: 10.5624/isd.20200334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose The aim of this study was to evaluate the radiopacities of various types of restorative materials with different thicknesses compared with enamel, dentin, and aluminum. Materials and Methods Four bulk-fill resins, 2 hybrid ceramics, 2 micro-hybrid resin composites, 6 glass ionomer-based materials, 2 zinc phosphate cements, and an amalgam were used in the study. Twelve disk-shaped specimens were prepared from each of 17 restorative materials with thicknesses of 1 mm, 2 mm, and 4 mm (n=4). All the restorative material specimens with the same thickness, an aluminum (Al) step wedge, and enamel and dentin specimens were positioned on a phosphor storage plate and exposed using a dental X-ray unit. The mean gray values were measured on digital images and converted to equivalent Al thicknesses. Statistical analyses were performed using 2-way analysis of variance and the Bonferroni post hoc test (P<0.05). Results Radiopacity was significantly affected by both the thickness and the material type (P<0.05). GCP Glass Fill had the lowest radiopacity value for samples of 1 mm thickness, while Vita Enamic had the lowest radiopacity value for 2-mm-thick and 4-mm-thick samples. The materials with the highest radiopacity values after the amalgam were zinc phosphate cements. Conclusion Significant differences were observed in the radiopacities of restorative materials with different thicknesses. Radiopacity was affected by both the material type and thickness.
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Affiliation(s)
- Ayla Yaylacı
- Bursa Oral and Dental Health Hospital, Bursa, Turkey
| | - Emine Sirin Karaarslan
- Department of Restorative Dentistry, Faculty of Dentistry, Tokat Gaziosman Paşa University, Tokat, Turkey
| | - Hüseyin Hatırlı
- Department of Restorative Dentistry, Faculty of Dentistry, Tokat Gaziosman Paşa University, Tokat, Turkey
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Hardan L, Sidawi L, Akhundov M, Bourgi R, Ghaleb M, Dabbagh S, Sokolowski K, Cuevas-Suárez CE, Lukomska-Szymanska M. One-Year Clinical Performance of the Fast-Modelling Bulk Technique and Composite-Up Layering Technique in Class I Cavities. Polymers (Basel) 2021; 13:1873. [PMID: 34200021 PMCID: PMC8200224 DOI: 10.3390/polym13111873] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to assess the one year clinical performance of a new application method, the Fast-Modelling Bulk Technique (FMBT), in comparison to the Composite-Up Layering Technique (CULT) in posterior cavities. Thirty patients with two class I cavities on permanent human molars were enrolled in the present study. A total of sixty class I cavities were prepared and randomly divided according to the restoration technique used: 30 cavities restored by incremental layering technique and modelling of the last layer with Composite-Up Technique (CUT) using the composite Filtek Z250XT (3M ESPE; St. Paul, MN, USA) and the other 30 restored by Bulk Filling technique and modelling of the last layer by Fast-Modelling Technique (FMT) using the composite Filtek Bulk Fill Posterior Restorative (3M ESPE; St. Paul, MN, USA). Restorations were evaluated for up to one year by two observers according to Federation Dentaire Internationale (FDI) criteria, through clinical and radiological exams. Exact Fisher tests were used for statistical analysis. (p ≤ 0.05). From a biological perspective, at baseline, teeth restored with both techniques did not reveal any postoperative sensitivity. However, with time, FMBT showed less postoperative sensitivity and therefore more desirable results than CULT with a nonsignificant difference after one year (p > 0.05). Concerning secondary caries, fracture of the material, and marginal adaptation, no significant difference was noted between both techniques (p > 0.05). Regarding marginal staining, CULT resulted in more staining with a significant difference, as compared to FMBT (p < 0.05). Upon radiological examination, FMBT showed a good marginal fit during the first year, whereas CULT showed small empty voids from baseline with a nonsignificant difference (p = 1.00). After one year of clinical function, both techniques showed promising results. The present study indicates that the new FMBT could have a positive effect on the marginal staining of resin composite.
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Affiliation(s)
- Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (L.H.); (R.B.); (M.G.); (S.D.)
| | - Layla Sidawi
- Department of Prosthetic Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon;
| | - Murad Akhundov
- Dental Update Clinic, Mammad Araz Street 102, Baku AZ 1069, Azerbaijan;
| | - Rim Bourgi
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (L.H.); (R.B.); (M.G.); (S.D.)
| | - Maroun Ghaleb
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (L.H.); (R.B.); (M.G.); (S.D.)
| | - Sarah Dabbagh
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (L.H.); (R.B.); (M.G.); (S.D.)
| | - Krzysztof Sokolowski
- Department of Restorative Dentistry, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland;
| | - Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, Circuito Ex Hacienda La Concepción S/N, San Agustín Tlaxiaca 42160, Hidalgo, Mexico;
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Erzurumlu ZU, Sagirkaya CE, Erzurumlu K. Evaluation of radiopacities of CAD/CAM restorative materials and resin cements by digital radiography. Clin Oral Investig 2021; 25:5735-5741. [PMID: 33704572 DOI: 10.1007/s00784-021-03875-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 03/04/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE This study aims to compare the radiopacities of computer-aided design/computer-aided manufacture (CAD/CAM) blocks and the adhesive cements used for their bonding. MATERIALS AND METHODS 1 ± 0.2 mm thick specimens were obtained from six different CAD/CAM blocks (Incoris TZI, IPS e.max CAD, Vita Mark II, Cerasmart, Vita Enamic, and Vita Suprinity), four different adhesive resin cements (Panavia F2.0, Variolink Esthetic DC, RelyX Unicem Aplicap, G-CEM LinkAce), and a tooth. Radiographs of the specimens from each group, a tooth section, and an aluminum (Al) step-wedge were acquired. The radiopacity values of the materials were calculated as equivalents of Al thickness using the gray level values. The data were statistically analyzed using one-way ANOVA and Tukey HSD tests. RESULTS All the materials except Cerasmart and Vita Enamic had significantly higher radiopacity values than dentin (p < 0.05). Of the assessed blocks, the highest radiopacity value was observed in Incoris TZI, and the lowest radiopacity value was observed in Vita Enamic. Variolink Esthetic DC and RelyX Unicem Aplicap showed significantly higher radiopacity (p < 0.05) than the other adhesive cements, including enamel and dentin. CONCLUSIONS In this study, the majority of the CAD/CAM materials and all the adhesive resin cements were found to have sufficient radiopacity for prosthetic restorations according to the criteria set by the International Organization for Standardization (ISO). CLINICAL RELEVANCE From a clinical and biological point of view, materials should be chosen according to their radiopacity and other properties, such as biocompatibility and esthetics. If the selected restorative CAD/CAM blocks have a radiopacity value less than or equal to dentin, cements with higher radiopacity values are recommended to facilitate radiological diagnoses for periphery and interface of restorations.
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Affiliation(s)
- Zerrin Unal Erzurumlu
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ordu University, Ordu, Turkey.
| | | | - Kerem Erzurumlu
- Department of Computer Programming, Vocational School of Technical Sciences, Ordu University, Ordu, Turkey
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Alérico MS, Panzarella FK, França FMG, Lima CADS, Junqueira JLC, Raitz R. Effect of image acquisition parameters on the radiopacity of bulk-fill and nanocomposite resins. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 132:217-224. [PMID: 33184008 DOI: 10.1016/j.oooo.2020.10.008] [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: 03/11/2020] [Revised: 10/07/2020] [Accepted: 10/11/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVE This study evaluated the radiopacity of 2 bulk-fill resins (SonicFill and Filtek Bulk Fill) and a nanocomposite (Filtek Z350 XT) resin compared with enamel, dentin, and aluminum as measured with different exposure parameters. STUDY DESIGN Resin disks were radiographed together with a 1-mm human tooth section and an aluminum stepwedge, at exposure times of 0.2 and 0.32 s, and source-image (S-I) distances of 30 and 40 cm, using complementary metal oxide semiconductor (CMOS) and photostimulable phosphor systems. Grayscale values were measured using ImageJ software. Paired Student t tests were used to compare the effect of the receptor on grayscale values for each material. Analysis of variance was used to evaluate the effects of receptor, exposure parameters, and the resins on radiopacity. RESULTS All resins exhibited greater radiopacity scores than enamel and were significantly different from each other. Filtek Z350 produced the lowest radiopacity values, whereas SonicFill produced the highest. The radiopacity values were higher on images acquired with CMOS receptors. Receptor type, exposure time, S-I distance, and material, as well as many interactions of these parameters, affected the radiopacity of the resins. CONCLUSION The tested resins complied with ISO 4049. Exposure parameters and digital receptors affected their radiopacity.
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Affiliation(s)
- Mariah Scotti Alérico
- Faculdade São Leopoldo Mandic, Instituto de Pesquisas, Division of Oral Radiology, Campinas, Brazil
| | - Francine Kühl Panzarella
- Faculdade São Leopoldo Mandic, Instituto de Pesquisas, Division of Oral Radiology, Campinas, Brazil.
| | | | | | | | - Ricardo Raitz
- Faculdade São Leopoldo Mandic, Instituto de Pesquisas, Division of Oral Radiology, Campinas, Brazil
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Menezes-Silva R, Cabral RN, Pascotto RC, Borges AFS, Martins CC, Navarro MFDL, Sidhu SK, Leal SC. Mechanical and optical properties of conventional restorative glass-ionomer cements - a systematic review. J Appl Oral Sci 2019; 27:e2018357. [PMID: 30810640 PMCID: PMC6382318 DOI: 10.1590/1678-7757-2018-0357] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/20/2018] [Indexed: 12/05/2022] Open
Abstract
Objectives To perform a systematic review of test methodologies on conventional restorative glass-ionomer cement (GIC) materials for mechanical and optical properties to compare the results between different GICs. Material and Methods Screening of titles and abstracts, data extraction, and quality assessments of full-texts were conducted in search for in vitro studies on conventional GICs that follow the relevant specifications of ISO standards regarding the following mechanical and optical properties: compressive strength, flexural strength, color, opacity and radiopacity. Sources The Latin American and Caribbean Health Sciences (LILACS), Brazilian Bibliography of Dentistry (BBO) databases from Latin-American and Caribbean System on Health Sciences Information (BIREME) and PubMed/Medline (US National Library of Medicine - National Institutes of Health) databases were searched regardless of language. Altogether, 1146 in vitro studies were selected. Two reviewers independently selected and assessed the articles according to pre-established inclusion/exclusion criteria. Among all the properties investigated, only one study was classified as being of fair quality that tested compressive strength and was included. It was observed that many authors had not strictly followed ISO recommendations and that, for some properties (diametral tensile strength and microhardness), there are no guidelines provided. Conclusions It was not possible to compare the results for the mechanical and optical properties of conventional restorative GICs due to the lack of standardization of studies.
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Affiliation(s)
- Rafael Menezes-Silva
- Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | | | | | - Ana Flávia Sanches Borges
- Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Carolina Castro Martins
- Faculdade de Odontologia da Universidade Federal de Minas Gerais, Departamento de Odontopediatria e Ortodontia, Belo Horizonte, MG, Brasil
| | - Maria Fidela de Lima Navarro
- Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Sharanbir K Sidhu
- Queen Mary University of London, Institute of Dentistry, London, United Kingdom
| | - Soraya Coelho Leal
- Universidade de Brasília, Departamento de Odontologia, Brasília, DF, Brasil
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Atala MH, Atala N, Yeğin E, Bayrak S. Comparison of radiopacity of current restorative CAD/CAM blocks with digital radiography. J ESTHET RESTOR DENT 2018; 31:88-92. [PMID: 30302898 DOI: 10.1111/jerd.12429] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/11/2018] [Accepted: 09/10/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVE While the radiopacity of restorative material affects the radiographic diagnosis of the teeth, there is no data about the radiopacity of current restorative computer-aided design (CAD)/computer-aided manufacturing (CAM) materials. Therefore, the present study compared the radiopacity values of current restorative CAD/CAM blocks to facilitate the material choice within such a wide variety of materials. MATERIALS AND METHODS Specimens were prepared from 13 different restorative CAD/CAM blocks to compare with enamel and dentin. The specimens placed on the occlusal phosphor plate were imaged with aluminum step wedge and tooth section. The radiopacity values were calculated using the Image J program. The radiopacity values of the specimens were converted to mmAl values with the Curve Expert 1.4 program. RESULTS The difference between the radiopacity values of dentin and e.max CAD was not significant, however, they exhibited a significant difference from the other 14 groups (P < .05). Enamel and Obsidien, Suprinity, and Celtra Duo had greater radiopacity values with significant differences from the other 12 materials whereas the difference within these groups was not significant (P > .05). CONCLUSIONS The evaluated restorative CAD/CAM materials have significantly different radiopacity values. Among these permanent restoration blocks, the highest radiopacity value was observed in Celtra Duo, the lowest in Block HC. CLINICAL SIGNIFICANCE Cerasmart, Lava Ultimate, Obsidian, Vita Suprinity, Celtra Duo Blocks have adequate radiopacity for inlay, onlay and crown restorations, however, the use of Vita Enamic, Vita Mark II, GC LRF blocks and the others which have lower radiopacity value than dentin for the same kind of restorations depend on the radiopacity of the luting cement for the purpose of recurrent caries detection.
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Affiliation(s)
- Mustafa H Atala
- Assistant Professor Faculty of Dentistry, Department of Prosthodontics, Bolu Abant İzzet Baysal University, Bolu, Turkey
| | - Nagehan Atala
- Research Assistant Faculty of Dentistry, Department of Restorative Dentistry, Kırıkkale University, Kırıkkale, Turkey
| | - Elif Yeğin
- Assistant Professor Faculty of Dentistry, Department of Prosthodontics, Biruni University, Istanbul, Turkey
| | - Seval Bayrak
- Assistant Professor Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Bolu Abant İzzet Baysal University, Bolu, Turkey
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Cruz AD, Costa I, Calazans FS, Aguiar MF, Barceleiro MO. Longitudinal Evaluation of Radiopacity of Resin Composites: Influence of Photoactivation and Accelerated Photoaging. Oper Dent 2018; 43:E64-E71. [PMID: 29394139 DOI: 10.2341/16-240-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to assess longitudinally the radiopacity of resin composites under the influence of photoactivation and photoaging processes. Ten specimens (1 mm thick and 4 mm in diameter) of three different microhybrid resin composites, Filtek Z250 XT (R1), TPH 3 Spectrum (R2), and Opallis (R3), were prepared for this study. For longitudinal assessment of radiopacity, radiographic images were obtained five times. The first time (T1), the specimens were not photoactivated; the second time (T2), the specimens were photoactivated; and the next three times, photoaging was carried out, with images obtained at 24 hours (T3), 48 hours (T4), and 72 hours (T5) after this process. The photoaging was conducted using LED light (700 lumens, 9 W, 6400 k) under controlled environmental conditions at 37°C (±1°C) and 65% (±5%) relative humidity. The digital system DIGORA Optime was used. The digital images were measured using the histogram function, and then the pixel intensity values were converted into mmAl (the standard unit of radiopacity) using a linear regression function, with minimal adjustment of R2 ≥ 0.9. Data in mmAl were statistically analyzed using an analysis of variance (α=0.05). R2 resin composite showed higher values of radiopacity, R1 resin composite showed intermediate values, and R3 resin composite showed lower values. Only at T1 did the higher radiopacity of R2 composite differ significantly from other groups ( p = 0.0000). After application of treatments (photoactivation and photoaging), all radiopacity values were similar ( p-values to T2=0.0507, T3=0.0536, T4=0.0502, T5=0.0501) due to consecutive increase of radiopacity of R1 and R3 composites from T2. Photoactivation and photoaging processes influenced the radiopacity, but changes occurring in the degree of radiopacity were dependent on the composition and chemical characteristics of each composite used.
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Soares CJ, Rosatto CMP, Carvalho VF, Bicalho AA, Henriques JCG, Faria-e-Silva AL. Radiopacity and Porosity of Bulk-fill and Conventional Composite Posterior Restorations—Digital X-ray Analysis. Oper Dent 2017; 42:616-625. [DOI: 10.2341/16-146-l] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objectives:
To compare radiopacity and porosity as expressed by the presence of voids in restorations carried out using bulk-fill and incremental filling techniques to restore large mesio-occlusal-distal (MOD) cavities.
Methods:
Fifty-five molars with MOD preparations were incrementally filled with Filtek Z-350XT (Z350XT) or bulk-fill composite: Filtek Bulk Fill/Z-350XT (FBF/Z350XT), Venus Bulk Fill/Charisma Diamond (VBF/CHA), SDR/Esthet-X HD (SDR/EST-X), Tetric EvoCeram Bulk Fill (TEC). Digital radiographic images (Vistascan scanner) were taken of restored molars and analyzed at the gingival and isthmus floors. Radiodensity measurements were performed using standardized points symmetrically distributed over each region of composite and tooth structure. Three calibrated evaluators visually assessed the presence of voids. Confidence intervals were calculated, and data were analyzed using analysis of variance and χ2 tests.
Results:
TEC and VBF/CHA showed significantly higher radiodensities, while the lowest values were observed for FBF/Z350XT and Z350XT. Radiodensity at the cervical regions tended to be greater than that found at the isthmus floor. The lowest incidence of voids was found for VBF/CHA, whereas the incremental insertion technique resulted in the highest rate of voids.
Conclusion:
Bulk-fill composite resin demonstrated an adequate level of radiodensity and a reduced presence of voids compared with the incremental filling technique.
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Affiliation(s)
- CJ Soares
- Carlos José Soares, Department of Operative Dentistry and Dental Materials, Dental School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - CMP Rosatto
- Camila M. Perez Rosatto, Department of Operative Dentistry and Dental Materials, Dental School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - VF Carvalho
- Valessa Flausino Carvalho, Department of Operative Dentistry and Dental Materials, Dental School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - AA Bicalho
- Aline Aredes Bicalho, Department of Operative Dentistry and Dental Materials, Dental School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - JCG Henriques
- João César Guimarães Henriques, Department of Radiology and Stomatology, Dental School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - AL Faria-e-Silva
- André Luis Faria-e-Silva, Department of Operative Dentistry, Dental School, Federal University of Sergipe, Aracaju, Sergipe, Brazil
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Dionysopoulos D, Tolidis K, Gerasimou P, Koliniotou-Koumpia E. Effects of shade and composition on radiopacity of dental composite restorative materials. Oral Radiol 2016. [DOI: 10.1007/s11282-016-0260-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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