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Nagai T, Alfaraj A, Chu TMG, Yang CC, Lin WS. Color stability of CAD-CAM hybrid ceramic materials following immersion in artificial saliva and wine. J Prosthodont 2024. [PMID: 38742795 DOI: 10.1111/jopr.13868] [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: 06/28/2023] [Accepted: 04/21/2024] [Indexed: 05/16/2024] Open
Abstract
PURPOSE To examine the color stability of 3D-printed and milled, interim, and definitive, restorative materials after immersion in artificial saliva and wine for 1, 3, and 6 months. MATERIAL AND METHODS The study used a 2 × 5 factorial design with 10 subgroups, including 2 immersion liquids (artificial saliva and wine) and 5 manufacturing technology and restorative material combinations (n = 10). Color measurements were taken using a contact-type digital spectrophotometer (CM-2600d Spectrophotometer; Konica Minolta Healthcare Americas Inc) before immersion and at 1 month (T1), 3 months (T3), and 6 months (T6) after immersion. The CIE2000 system was used to calculate quantitative measurements of color differences in ΔE00, and comparisons were made to the acceptability threshold (AT) and perceptibility threshold (PT). Repeated measures of ANOVA (α = 0.05) were used to compare differences in color changes between manufacturing technology/restorative material-immersion liquid combinations at T1, T3, and T6. RESULTS To compare the effect of immersion liquid and time on the manufacturing technology/restorative material groups, the ΔE00 values were compared to the PT of 0.8 and the AT of 1.8. Wine caused significant color changes in ΔE00 values beyond the PT and AT values in all groups at all time intervals, except for the AT value of milled definitive crowns (hybrid nano-ceramic material). Wine immersion caused significant ΔE00 for all manufacturing technology/restorative material groups at all time intervals (1 month, 3 months, and 6 months) when compared to artificial saliva immersion (all p < 0.001). CONCLUSION Upon exposure to artificial saliva, 80%-100% of samples from all groups remained within the acceptable and perceptible color change thresholds. The wine had significant chromogenic effects on all tested restorative materials, however, the milled definitive crowns (hybrid nano-ceramic material) showed the greatest color stability. For patients with heavy wine consumption, 3D-printed definitive crowns (hybrid ceramic-filled material) may show discoloration exceeding acceptable and perceptible color change limits.
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Affiliation(s)
- Toshiki Nagai
- Department of Prosthodontics, Indiana University School of Dentistry, Indianapolis, Indiana, USA
| | - Amal Alfaraj
- Department of Prosthodontics, Indiana University School of Dentistry, Indianapolis, Indiana, USA
- Department of Prosthodontics, King Faisal University, School of Dentistry, Al Ahsa, Saudi Arabia
| | - Tien-Min G Chu
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, Indiana, USA
| | - Chao-Chieh Yang
- Advanced Education Program in Prosthodontics, Department of Prosthodontics, Indiana University School of Dentistry, Indianapolis, Indiana, USA
| | - Wei-Shao Lin
- Department of Prosthodontics, Indiana University School of Dentistry, Indianapolis, Indiana, USA
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Moldovan M, Dudea D, Cuc S, Sarosi C, Prodan D, Petean I, Furtos G, Ionescu A, Ilie N. Chemical and Structural Assessment of New Dental Composites with Graphene Exposed to Staining Agents. J Funct Biomater 2023; 14:jfb14030163. [PMID: 36976087 PMCID: PMC10058725 DOI: 10.3390/jfb14030163] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
Among the newest trends in dental composites is the use of graphene oxide (GO) nanoparticles to assure better cohesion of the composite and superior properties. Our research used GO to enhance several hydroxyapatite (HA) nanofiller distribution and cohesion in three experimental composites CC, GS, GZ exposed to coffee and red wine staining environments. The presence of silane A-174 on the filler surface was evidenced by FT-IR spectroscopy. Experimental composites were characterized through color stability after 30 days of staining in red wine and coffee, sorption and solubility in distilled water and artificial saliva. Surface properties were measured by optical profilometry and scanning electron microscopy, respectively, and antibacterial properties wer e assessed against Staphylococcus aureus and Escherichia coli. A colour stability test revealed the best results for GS, followed by GZ, with less stability for CC. Topographical and morphological aspects revealed a synergism between GZ sample nanofiller components that conducted to the lower surface roughness, with less in the GS sample. However, surface roughness variation due to the stain was affected less than colour stability at the macroscopic level. Antibacterial testing revealed good effect against Staphylococcus aureus and a moderate effect against Escherichia coli.
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Affiliation(s)
- Marioara Moldovan
- "Raluca Ripan" Institute of Research in Chemistry, "Babes Bolyai" University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Diana Dudea
- Department of Prosthetic Dentistry and Dental Materials, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
| | - Stanca Cuc
- "Raluca Ripan" Institute of Research in Chemistry, "Babes Bolyai" University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Codruta Sarosi
- "Raluca Ripan" Institute of Research in Chemistry, "Babes Bolyai" University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Doina Prodan
- "Raluca Ripan" Institute of Research in Chemistry, "Babes Bolyai" University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Ioan Petean
- Faculty of Chemistry and Chemical Engineering, "Babes-Bolyai" University, 11 Arany Janos Street, 400084 Cluj-Napoca, Romania
| | - Gabriel Furtos
- "Raluca Ripan" Institute of Research in Chemistry, "Babes Bolyai" University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Andrei Ionescu
- Oral Microbiology and Biomaterials Laboratory, Department of Biomedical, Surgical and Dental Sciences, Università Degli Studi di Milano, Via Pascal 36, 20133 Milano, Italy
| | - Nicoleta Ilie
- Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-University, Goethestr. 70, 80336 Munich, Germany
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Ponnala SL, Punithavathy R, Birapu UKC, Vasepalli M, Martha S, Raparla M. An In Vitro Staining Effect of Different Children's Health Drinks on Esthetic Restorative Materials. Int J Clin Pediatr Dent 2023; 16:211-217. [PMID: 37519982 PMCID: PMC10373770 DOI: 10.5005/jp-journals-10005-2479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Abstract
Aim To evaluate the staining effect of different children's health drinks (Boost, Complan, and Pediasure) on esthetic restorative materials (giomer, nanohybrid composite, and ormocer). Materials and methods The specimens consist of giomer, nanohybrid composite, and ormocer. Before the discoloration process, 80 disks of each material were fabricated, each measuring 5 mm in diameter and 2 mm in thickness. These disks were then measured for lightness*red/green*blue/yellow (L*a*b*) values. Around 10 samples from each subgroup were then submerged in each of the four staining solutions. Analysis of discoloration levels was done at baseline and 48 hours after immersion in the staining solution. Each specimen's staining effect was evaluated using a spectrophotometer.Each specimen's L*a*b* values were measured three times by placing it on the measurement head. The internal energy (ΔE) unit, which expresses resistance to the staining effect, was derived using each specimen's L*a*b* values. Results All the tested materials showed a color change. However, giomer showed greater ΔE values compared to nanohybrid composite and ormocer. Of all the immersion media used, Boost samples resulted in the highest color change, followed by Complan, Pediasure, and milk. Conclusion Out of the three restorative materials used in the study, ormocer showed more resistance to color change than nanohybrid composite and giomer with all the tested media. How to cite this article Ponnala SL, Punithavathy R, Birapu UKC, et al. An In Vitro Staining Effect of Different Children's Health Drinks on Esthetic Restorative Materials. Int J Clin Pediatr Dent 2023;16(2):211-217.
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Affiliation(s)
- Sri Lasya Ponnala
- Department of Pedodontics & Preventive Dentistry, KLR's Lenora Institute of Dental Sciences, Rajamahendravaram, Andhra Pradesh, India
| | - Rachuri Punithavathy
- Department of Pedodontics & Preventive Dentistry, KLR's Lenora Institute of Dental Sciences, Rajamahendravaram, Andhra Pradesh, India
| | - Uday Kumar Chowdary Birapu
- Department of Pedodontics & Preventive Dentistry, SVS Institute of Dental Sciences, Appanapalli, Mahabubnagar, Telangana, India
| | - Madhu Vasepalli
- Department of Pedodontics & Preventive Dentistry, KLR's Lenora Institute of Dental Sciences, Rajamahendravaram, Andhra Pradesh, India
| | - Satyam Martha
- Department of Pedodontics & Preventive Dentistry, KLR's Lenora Institute of Dental Sciences, Rajamahendravaram, Andhra Pradesh, India
| | - Mythraiye Raparla
- Department of Pedodontics & Preventive Dentistry, KLR's Lenora Institute of Dental Sciences, Rajamahendravaram, Andhra Pradesh, India
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Yeslam HE, AlZahrani SJ. Time-dependent effect of intense capsule-coffee and bleaching on the color of resin-infiltrated enamel white spot lesions: an in vitro study. PeerJ 2022; 10:e14135. [PMID: 36221260 PMCID: PMC9548318 DOI: 10.7717/peerj.14135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/06/2022] [Indexed: 01/21/2023] Open
Abstract
Background and Objectives White spot lesions (WSLs) are a common problem that can be conservatively managed by resin infiltration. Consumption of dark beverages such as coffee causes staining of dental hard tissues, which can deteriorate the esthetic qualities of treated WSLs. The aims of this study were to investigate the effect of dark coffee heavy consumption on ICON® resin infiltrated WSLs and the influence of bleaching on them after staining. Methods Twenty surfaces from sound human extracted third molars were used in the study. Two square-shaped buccal and lingual window areas had artificially created WSLs (received buccal resin infiltration afterward). Using VITA Easyshade, the baseline ΔE was recorded. Espresso coffee was used to immerse all surfaces for 8 days. The color coordinates according to CIE LAB were recorded for all surfaces at 2, 4, 6, and 8 days of immersion, and ΔE was calculated at each timepoint. After 8 days, in-office bleaching was applied to all surfaces according to the manufacturer's instructions and the color. Coordinates and ΔE were recorded. For statistical analysis, an independent sample t-test was used to compare each group. A general linear mixed model (GLMM) repeated measure ANOVA was applied for statistical analysis of L*and changes due to staining over time. Results Analysis of time as a main effect on the L values of surfaces was statistically highly significant (p < 0.01). The interaction of time with surfaces under investigation and type of surface (test vs. control) as a main effect were non-significant (p = 0.47 and p = 0.35, respectively). Bleaching showed a significant difference in color lightness in both test and control surfaces compared to the mean L value at 8 days of staining (p < 0.01). Conclusion Capsule-coffee consumption gradually influences the esthetic of resin infiltration on treated teeth. However, bleaching materials might restore an esthetic shade.
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Affiliation(s)
- Hanin E. Yeslam
- Department of Restorative Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Saeed J. AlZahrani
- Department of Restorative Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
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Ebaya MM, Ali AI, El-Haliem HA, Mahmoud SH. Color stability and surface roughness of ormocer- versus methacrylate-based single shade composite in anterior restoration. BMC Oral Health 2022; 22:430. [PMID: 36167560 PMCID: PMC9513900 DOI: 10.1186/s12903-022-02423-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/30/2022] [Indexed: 11/12/2022] Open
Abstract
Background The blending ability of universal shade composites and their stability in the oral environment are of great concern in restoring anterior teeth. This study aims to evaluate and compare the color stability and surface roughness of two single-shade composite restorations, ormocer-based composite (OBC) and methacrylate resin-based composite (RBC), after storing them in different staining media.
Materials and methods In this study, two universal shade composite restorative materials were tested: a nanohybrid OBC (Admira fusion X-tra, Voco) and a supra-nanofilled RBC (Omnichroma, Toukyama). In total, 60 cylindrical centralized cavities (diameter: 5 mm, depth: 2 mm) were prepared in sound extracted-human central incisors and divided into two equal groups according to the restorative material used (n = 30). According to the storage media, the teeth of each group were divided into three subgroups (n = 10): artificial saliva, black tea, and cola. The restoration color was evaluated for all teeth at baseline and after four weeks of storage. The color stability (∆E) was measured using a reflective spectrophotometer (X-Rite, model RM200QC, Neu-Isenburg, Germany). The surface roughness (Ra) was evaluated using three-dimensional optical profilometry (Wyko, Model NT 1100, Veeco, Tucson, USA). Additionally, the extracted data were analyzed using two-way analysis of variance (ANOVA), one-way ANOVA and Student’s t-test.
Results In the baseline evaluation, there were no statistically significant differences with respect to color matching or surface roughness results between the two studied restorative materials. However, the differences were statistically significant after storing them in different media. Conclusion Universal composites showed satisfactory color matching with different teeth colors and accepted surface smoothness, whereas the aging procedure exerted a negative effect on their color stability and surface characteristics.
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Affiliation(s)
- Maha M Ebaya
- Operative Dentistry Department, Faculty of Dentistry, Algomhoria Street, Po (box) 35516, Mansoura, Aldakhlia, Egypt
| | - Ashraf I Ali
- Operative Dentistry Department, Faculty of Dentistry, Algomhoria Street, Po (box) 35516, Mansoura, Aldakhlia, Egypt
| | - Huda Abed El-Haliem
- Operative Dentistry Department, Faculty of Dentistry, Algomhoria Street, Po (box) 35516, Mansoura, Aldakhlia, Egypt
| | - Salah Hasab Mahmoud
- Operative Dentistry Department, Faculty of Dentistry, Algomhoria Street, Po (box) 35516, Mansoura, Aldakhlia, Egypt.
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Color Stability Determination of CAD/CAM Milled and 3D Printed Acrylic Resins for Denture Bases: A Narrative Review. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6070201] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aim of this paper is to review the available literature on the different methods for color stability determination of CAD/CAM milled and 3D printed resins for denture bases. The methodology included applying a search strategy, defining inclusion and exclusion criteria and selecting studies to summarize the results. Searches of PubMed, Scopus, and Embase databases were performed independently by three reviewers to gather the literature published between 1998 and 2022. A total of 186 titles were obtained from the electronic database, and the application of exclusion criteria resulted in the identification of 66 articles pertaining to the different methods for color stability determination of CAD/CAM acrylic resins for denture bases. Color change in dental materials is clinically very important for the dental operator, as it determines the clinical serviceability of the material. Discoloration of the denture bases can be evaluated with various instruments and methods. Dental resins may undergo color changes over time due to intrinsic and/or extrinsic factors. The extrinsic factors are considered the more frequent causes of color changes. According to a number of studies, CAD/CAM fabricated acrylics have achieved better color stability than the conventional PMMA (polymethyl methacrylate) resins.
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Paolone G, Formiga S, De Palma F, Abbruzzese L, Chirico L, Scolavino S, Goracci C, Cantatore G, Vichi A. Color stability of resin-based composites: Staining procedures with liquids-A narrative review. J ESTHET RESTOR DENT 2022; 34:865-887. [PMID: 35396818 DOI: 10.1111/jerd.12912] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 01/30/2022] [Accepted: 03/24/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The objective of this study was to review the experimental staining procedures performed in in-vitro studies for evaluating color stability of resin-based composites used for direct restorations. OVERVIEW A review was performed with the purpose to identify in vitro procedures carried out to establish staining and color stability of resin-based composites used for direct restorations. A literature search was performed on four online databases (PubMed, Scopus, Embase and Web of Science) for articles published from January 1st 2001 till March 20th 2021, using a combination of free words and Medical Subject Headings (MESH) terms: "Composite Resins" AND "Color Stability" OR "Staining." Two reviewers screened titles and/or abstracts of 1728 unique studies. In total, 208 studies were selected for full-text reading, from which 178 were included in the review. The assessed variables were specimen dimensions, shape, and surface finishing; time before immersion; staining media type, dwell time, temperature and renewal interval; type of composite; color and translucency assessment parameters and measuring system. One hundred and seventy-eight articles analyzed color stability with staining liquids. Coffee was the most used staining medium (n = 102), followed by tea (n = 61), and red wine (n = 55). A disc-shaped specimen was used in most studies (n = 170) with a 2 mm thickness (n = 116). Spectrophotometers were the most used color assessment devices (n = 154), followed by colorimeters (n = 17). Color differences were quantified with ΔE (n = 154), ΔE00 (n = 23). Acceptability and or perceptibility thresholds were also taken into consideration (n = 126). CONCLUSIONS The large variety of staining procedure suggests the need for standardization. CLINICAL SIGNIFICANCE Aesthetic failure due to discoloration is a relevant clinical problem. Evaluating benefits and drawbacks of resin based composites artificial staining procedures will improve to predict materials clinical performances.
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Affiliation(s)
- Gaetano Paolone
- Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - Sara Formiga
- Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - Francesca De Palma
- Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - Luca Abbruzzese
- Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - Luca Chirico
- Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | | | - Cecilia Goracci
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Giuseppe Cantatore
- Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
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Marufu C, Kisumbi BK, Osiro OA, Otieno FO. Effect of finishing protocols and staining solutions on color stability of dental resin composites. Clin Exp Dent Res 2022; 8:561-570. [PMID: 35349747 PMCID: PMC9033545 DOI: 10.1002/cre2.555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 11/30/2022] Open
Abstract
Objective The objective of this study was to evaluate the effect of finishing protocol and exposure to staining solutions on color stability of dental resin composites. Materials and Methods A nanofill and microhybrid composite, three finishing protocols (mylar, Soflex disc, and white polishing stone) and four staining solutions (tea, red wine, khat extract—two concentrations, control—distilled water) were evaluated. A digital spectrophotometer was used for color change (ΔE) measurements employing the CIE‐Lab‐color system. Paired/independent‐sample t test and two‐way analysis of variance (ANOVA) followed by Tukey's honestly significant difference posthoc test were used for inferential statistics at α = .05. Results Soflex finish was associated with least staining and comparable color stability for the two materials in tea and red wine. In Khat 2, microhybrid composite had statistically significant better color stability than nanofill for Soflex finish (14 days t = 3.270, p = .011). For microhybrid composite, mylar resulted in highest mean ΔE, whereas Soflex recorded the least in all staining solutions. For nanofill composite, white stone resulted in highest mean ΔE, whereas Soflex demonstrated the least mean ΔE in all staining solutions, except red wine where mylar demonstrated the least mean ΔE. For mylar finish, nanofill demonstrated statistically significant better color stability than microhybrid in both red wine (14 days t = 4.902, p = .001) and Khat 1 (14 days t = 3.252, p = .012). For stone finish, microhybrid demonstrated statistically significant better color stability than nanofill in all staining solutions (14 days t ≥ 4.785, p ≤ .001). Two‐way ANOVA showed a statistically significant difference in mean ΔE between and within specimens (F = 42.658, p < .001). All staining solutions caused clinically unacceptable discoloration for mylar and white stone finish. For Soflex finish, red wine produced clinically unacceptable color difference beyond 48 h. Conclusion There was a difference in color stability of resin composites depending on filler type, further influenced by finishing protocol. Soflex disc finish results in better color stability than mylar and white stone in both microhybrid and nanofill composites. Clinical significance Esthetic dental restorations such as resin composites are routine in contemporary restorative practice. Color stability of composites may be influenced by surface finish, dependent on the filler type, and consumption of chromogenic substances such as khat. To prolong their service, selection of suitable finishing protocols is an important consideration.
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Affiliation(s)
- Chamunorwa Marufu
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
| | - Bernina K Kisumbi
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
| | - Olivia A Osiro
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
| | - Fred O Otieno
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
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Preethi Suganya S, Manimaran P, Saisadan D, Dhinesh Kumar C, Abirami D, Monnica V. Spectrophotometric Evaluation of Shade Selection with Digital and Visual Methods. J Pharm Bioallied Sci 2020; 12:S319-S323. [PMID: 33149479 PMCID: PMC7595466 DOI: 10.4103/jpbs.jpbs_95_20] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/05/2020] [Accepted: 04/02/2020] [Indexed: 11/04/2022] Open
Abstract
Aim The main purpose of the study was to learn the possible shade differences between human eye and the digital method with spectrophotometric methods. Materials and Methods Fifty dental students of age groups 18-25 with maxillary right central incisor after undergoing oral prophylaxis were included in this study. Before undergoing shade selection, standardization protocol was followed. The shade of the right maxillary central incisor was determined by using the following methods: visual, spectrophotometer, and digital photography. The shades obtained by both spectrophotometer and visual methods are compared and similarly L*, a*, and b* values obtained by both spectrophotometer and digital methods are compared. Finally these comparisons are subjected to statistical analysis. Results Z and P values of digital and spectrophotometric methods were found to be statistically significant. Tooth shade selected between spectrophotometric and visual method was analyzed by using chi-square test, which shows highly significant value. Conclusion It was concluded that the digital photography can be used as one of the reliable methods for shade selection in a clinical setup.
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Affiliation(s)
- S Preethi Suganya
- Department of Prosthodontics, JKKN Dental College & Hospital, Komarapalayam, Tamil Nadu, India
| | - P Manimaran
- Department of Prosthodontics, JKKN Dental College & Hospital, Komarapalayam, Tamil Nadu, India
| | - D Saisadan
- Department of Prosthodontics, JKKN Dental College & Hospital, Komarapalayam, Tamil Nadu, India
| | - C Dhinesh Kumar
- Department of Prosthodontics, JKKN Dental College & Hospital, Komarapalayam, Tamil Nadu, India
| | - D Abirami
- RVS Dental College and Hospital, Sulur, Tamil Nadu, India
| | - V Monnica
- Department of Prosthodontics, JKKN Dental College & Hospital, Komarapalayam, Tamil Nadu, India
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Almohareb T, Alkatheeri MS, Vohra F, Alrahlah A. Influence of experimental staining on the color stability of indirect computer-aided design/computer-aided manufacturing dental provisional materials. Eur J Dent 2019; 12:269-274. [PMID: 29988258 PMCID: PMC6004811 DOI: 10.4103/ejd.ejd_1_18] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objective: This study presents a comparative analysis of the color stability of computer-aided design/computer-aided manufacturing (CAD/CAM)-fabricated provisional restorations with those of conventional restorations. Materials and Methods: Three different provisional restorative materials (Systemp C&B, 3M Protemp 4, and Telio CAD) were inspected for their color stability using four solutions (Pepsi, coffee, tea, and distilled water). All samples used were fabricated using A1 shade by following the manufacturer's instructions. Color assessment was performed using CIELAB system and a colorimeter. After baseline color measurement, color assessments were done weekly after immersion in specified solutions. Triplicate readings were taken for every sample and the mean value of the color coordinates (L*), (a*), and (b*) were recorded at baseline, week 1, week 2, week 3, and week 4. The data within different groups were compared statistically using analysis of variance (α = 0.05). Results: Overall, the highest color stability was found in CAD/CAM material, followed by Protemp and SystempC&B. It was also observed that the maximum color variation was observed in case of coffee, followed by tea and Pepsi. Conclusions: CAD/CAM provisional material (Telio CAD) showed better color stability compared to conventional materials (Protemp 3M ESPE and SystempC&B Ivoclar Vivadent). CAD/CAM provisional materials are recommended for long-term temporization procedures. This is attributed to the prepolymerization, higher monomer conversion, and minimal preparation errors in CAD/CAM materials.
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Affiliation(s)
- Thamer Almohareb
- Departments of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed S Alkatheeri
- Departments of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Ali Alrahlah
- Departments of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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11
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Cruz MEM, Simões R, Martins SB, Trindade FZ, Dovigo LN, Fonseca RG. Influence of simulated gastric juice on surface characteristics of CAD-CAM monolithic materials. J Prosthet Dent 2019; 123:483-490. [PMID: 31383520 DOI: 10.1016/j.prosdent.2019.04.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 04/12/2019] [Accepted: 04/13/2019] [Indexed: 01/11/2023]
Abstract
STATEMENT OF PROBLEM How the surfaces of monolithic esthetic restorations behave in the presence of acidic substances is unclear. PURPOSE The purpose of this in vitro study was to evaluate the effect of simulated gastric juice on roughness, morphology, microhardness, substance loss, and color change of computer-aided design and computer-aided manufacturing (CAD-CAM) monolithic materials. MATERIAL AND METHODS Disks from Lava Ultimate, VITA ENAMIC, IPS e.max CAD, and VITA SUPRINITY were analyzed for roughness, morphology, and microhardness by using a confocal microscope, scanning electron microscope (SEM), and Vickers hardness tester. Substance loss was determined by weighing the specimens on an analytical balance, and color change (ΔE) was assessed by using a spectrophotometer based on the CIELab parameters. All analyses were carried out before and after acid exposure. RESULTS Acid exposure significantly decreased the roughness, having a very high effect size on this property. The material was highly decisive in determining the microhardness, presenting the following order: VITA SUPRINITY>IPS e.max CAD>VITA ENAMIC>Lava Ultimate. The mass was not significantly affected by the acidic challenge. No significant difference in ΔE was found between Lava Ultimate and VITA ENAMIC and between IPS e.max CAD and VITA SUPRINITY. Lava Ultimate showed a higher ΔE than IPS e.max CAD and VITA SUPRINITY, whereas VITA ENAMIC exhibited higher ΔE only when compared with VITA SUPRINITY. All materials presented ΔE<1. CONCLUSIONS The simulated gastric juice significantly influenced the roughness of all the evaluated materials and promoted a color change classified as clinically undetectable in all materials.
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Affiliation(s)
- Marlon E M Cruz
- Graduate student, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
| | - Rafaela Simões
- Graduate student, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
| | - Samira B Martins
- Doctoral student, Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
| | - Flávia Z Trindade
- Postdoctoral Fellow, Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
| | - Lívia N Dovigo
- Assistant Professor, Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
| | - Renata G Fonseca
- Assistant Professor, Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil.
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Ozera EH, Pascon FM, Correr AB, Puppin-Rontani RM, Castilho ARD, Correr-Sobrinho L, Paula ABD. Color Stability and Gloss of Esthetic Restorative Materials after Chemical Challenges. Braz Dent J 2019; 30:52-57. [DOI: 10.1590/0103-6440201902263] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/06/2018] [Indexed: 11/21/2022] Open
Abstract
Abstract This study evaluated gloss and color changes of esthetic restorative materials subjected to different acidic beverages. Specimens of resin composites (Z350XT (Z350), IPS Empress Direct (ED), Charisma Diamond (CD)) were prepared and the initial surface gloss and color (ΔE) were measured (n=10). Then, the specimens were immersed in 4 mL of each of the different beverages (cranberry juice; Coca-Cola; coffee or artificial saliva) during 15 min, 3x/day for 14 days and new gloss and color readings were obtained. Color change was evaluated with the ΔE formula and gloss change values were obtained by the formula: (final gloss - initial gloss). Data was submitted to two-way ANOVA followed by Tukey’s post hoc test (a=0.05). CD showed the lowest color change among resin composites. The highest ΔE values were obtained after immersion in coffee and cranberry juice. Coffee promoted the highest gloss change (worst gloss retention), followed by cranberry juice, Coca-cola and artificial saliva (p<0.05). The type of beverage significantly influenced the gloss of resin composites. Coca-cola reduced gloss of the three resin composites in a similar manner. Coffee affected the ED gloss more than that of Z350 and CD, while cranberry juice affected Z350 more than ED and CD. Saliva had a more pronounced effect on the gloss retention of CD than ED. The beverages used in this study influenced the optical surface properties of the composites studied.
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13
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The effect of pre-treatment methods on the quality of dehydrated candied Japanese quince fruits during storage. Journal of Food Science and Technology 2018; 55:4468-4476. [PMID: 30333643 DOI: 10.1007/s13197-018-3375-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
Abstract
Candied quince is one of the most popular processing products of Japanese quince (Chaenomeles japonica) in Latvia. During the storage of dehydrated fruit, the colour turns darker, thus negatively influence the overall quality and consumers' acceptability of the product. The aim of the present study was to evaluate the effectiveness of different anti-browning agents in combination with fruit blanching and soaking as a type of pre-treatment to preserve the colour of candied quince during 8-months storage. The fruit were harvested at various maturity stage (i.e. unripe, semi ripe and ripe) with the following pre-treatment using three anti-browning agents (l-cysteine, NATRApHASE®ABAF and Natureseal® AS1). Hunter L (whiteness/darkness), a (redness/greenness) and b (yellowness/blueness) values were used to measure change in colour. These values were also used for calculation of the total colour change (ΔE*). Considering blanching and soaking as a type of treatment. Best results were obtained with blanching treatment. L* values decreased significantly after dehydration, showing that the samples became darker, during the further 8-months storage, L* values increased, positively influencing the colour of the tested fruit. The data obtained using the Analytic Hierarchy Process Analysis revealed that 0.3% l-cysteine was the best for effective prevention of colour change during long-term storage among the tested agents.
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14
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Zhou X, Wang S, Peng X, Hu Y, Ren B, Li M, Hao L, Feng M, Cheng L, Zhou X. Effects of water and microbial-based aging on the performance of three dental restorative materials. J Mech Behav Biomed Mater 2018; 80:42-50. [DOI: 10.1016/j.jmbbm.2018.01.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 01/18/2018] [Accepted: 01/22/2018] [Indexed: 12/12/2022]
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Toz Akalin T, Genc G, Korkmaz Ceyhan Y, Ozturk Bozkurt F. The effect of mouth rinses on the color stability of sonicfill and a nanohybrid composite. J Istanb Univ Fac Dent 2016; 50:17-23. [PMID: 28955561 PMCID: PMC5573527 DOI: 10.17096/jiufd.15743] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 01/18/2016] [Indexed: 11/15/2022] Open
Abstract
PURPOSE The aim of this study was to evaluate the effects of 4 mouth rinses on the color stability of two different resin composites. MATERIALS AND METHODS A2 shade sonic-activated bulk fill material SonicFill (Kerr) and conventional nanohybrid composite Filtek Z550 (3M ESPE) were used. Forty disc-shaped specimens (10 mm x 2 mm) were fabricated for both composites and finished using 400-grit SiC paper and polished. After polishing and immersing in distilled water for 24h all specimens were subjected to color measurements. The baseline color values (L*, a*, b*) of each specimen were measured with a colorimeter. Following baseline measurement each composite group was divided into 5 groups: Oral-B Pro Expert Clinic Line Alcoholfree (Oral-B) group, Listerine Tooth Defense Rinse (Listerine) group, Pharmol Zn Mouth rinse (Çözümilaç) group, Nilera Mouth rinse (Nilera) group and Distilled water (control) group. The specimens were incubated in mouth rinses (20 ml) at 37°C for 12 hours and subjected to color measurement. Two-way ANO VA was used for statistical analysis (p<0.05). RESULTS SonicFill showed significantly higher discoloration when exposed to Oral-B Pro Expert Clinic Line Alcohol-free, Listerine Tooth Defense Rinse and Pharmol Zn Mouth rinse. The color differences of two resin composites were not statistically significant for distilled water and Nilera Mouth rinse. CONCLUSION Within the limits of this study it can be concluded that the SonicFill showed higher discoloration than nanohybrid resin composite Filtek Z550.
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Affiliation(s)
- Tugba Toz Akalin
- Department of Restorative Dentistry, School of Dentistry, Istanbul Medipol University, Turkey
| | - Gencay Genc
- Department of Restorative Dentistry, School of Dentistry, Istanbul Medipol University, Turkey
| | - Yonca Korkmaz Ceyhan
- Clinical Department of Restorative Dentistry and Prosthodontics School of Dentistry University of Texas Houston, USA
| | - Funda Ozturk Bozkurt
- Department of Restorative Dentistry, School of Dentistry, Istanbul Medipol University, Turkey
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Guiotti AM, Goiato MC, Dos Santos DM, Vechiato-Filho AJ, Cunha BG, Paulini MB, Moreno A, de Almeida MTG. Comparison of conventional and plant-extract disinfectant solutions on the hardness and color stability of a maxillofacial elastomer after artificial aging. J Prosthet Dent 2015; 115:501-8. [PMID: 26602149 DOI: 10.1016/j.prosdent.2015.09.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 08/28/2015] [Accepted: 09/03/2015] [Indexed: 10/22/2022]
Abstract
STATEMENT OF PROBLEM Silicone elastomers undergo physical and chemical degradation with disinfecting solutions. Phytotherapy may be a suitable solution for disinfection. However, its effect on the properties of the silicone material is unknown. PURPOSE The purpose of this in vitro study was to evaluate the effect of disinfection with conventional and plant-extract solutions and of artificial aging on the hardness and color stability of a facial silicone associated with pigments and an opacifier. MATERIAL AND METHODS Four hundred specimens of silicone (MDX4-4210) were fabricated (5×6 mm). Two pigment shades and 1 dry opacifier were combined in the tested material, and 4 groups (n=10) were obtained: colorless (GI), colorless with opacifier (GII), medium pigment with opacifier (GIII), and black pigment with opacifier (GIV). Specimens were subjected to disinfection (30 days) using saline solution, water, and neutral soap (digital friction, 30 seconds), chlorhexidine 4%, Hydrastis canadensis, and Cymbopogon nardus extracts (immersion, 10 minutes). Shore A hardness (ASTM D2240) and color analyses were performed before and after disinfection. Specimens were then exposed to 1008 hours of artificial aging (ASTM 53) and subjected to final hardness and color readings. The results were analyzed with ANOVA and the Tukey significant difference test (α=.05). RESULTS The opacifier increased the hardness (GII). For GII, the H. canadensis solution and the friction with water and soap promoted significantly reduced hardness; the friction also promoted a reduction in this property for GIV. The GIII was not affected after disinfection. A significant difference was found between the ΔE values of the specimens disinfected with H. canadensis, C. nardus, and chlorhexidine, and specimens subjected to saline solution and neutral soap. CONCLUSION The hardness of MDX4-4210 after the experimental procedure was considered clinically acceptable for facial prostheses. All groups showed clinically unacceptable color alterations regardless of the disinfecting solution.
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Affiliation(s)
- Aimée Maria Guiotti
- Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil.
| | - Marcelo Coelho Goiato
- Titular Professor, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil
| | - Daniela Micheline Dos Santos
- Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil
| | - Aljomar José Vechiato-Filho
- Doctoral student, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil
| | - Bruno Guandalini Cunha
- Graduate student, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil
| | - Marcela Borghi Paulini
- Graduate student, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil
| | - Amália Moreno
- Professor, Oral Patology and Surgery Department, School of Dentistry, Federal University of Minas Gerais, Minas Gerais, Brazil
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