Novel Trends in Dental Color Match Using Different Shade Selection Methods: A Systematic Review and Meta-Analysis

Since color matching is considered a subjective procedure, accurate shade choice is often the most challenging stage of recreating the natural appearance of teeth. Furthermore, accurate determination of tooth color is imperative for the final outcome of dental restorations. The purpose of this research is to assess the accuracy of color match between diverse shade selection methods throughout a systematic review and meta-analysis. Two independent investigators (L.H. and R.B.) screened the literature in five electronic databases. Randomized controlled trials or in vitro papers studying the effect of using either digital shade selection or visual shade selection on the accuracy of color match were included. A total of 13 manuscripts comprised the meta-analysis. Color difference (ΔE) between restorations where the shade matching was performed by the conventional method was greater than those where the shade matching was performed by computerized methods (p = 0.007). According to the subgroup analysis, only the use of digital photographs for shade matching showed a reduction in the (ΔE) (p < 0.0001), while the use of a spectrophotometer has no advantages over the use of visual shade guide tabs (p = 0.57). On the other hand, global analysis showed that incorrect shade matching was higher when the conventional method using shade guide tabs was used (p < 0.001), irrespective of whether a spectrophotometer or a digital camera was used (p < 0.001). This study concluded that the use of digital photography and spectrophotometric measurements led to fewer color differences and less incorrect shade matching than conventional methods using color shade tabs.

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Comparison between Color Spaces of Vita Lumin Shade Guide with Natural Teeth in Bengaluru Population using Spectrocolorimeter: An in vivo Study

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-2107 ◽

2017 ◽

Vol 18 (8) ◽

pp. 683-687

Author(s):

Deepak Mehta ◽

Nishant Gupta ◽

Rohit M Shetty ◽

Adarsh N Bhat ◽

Gopalakrishna Srivatsa ◽

...

Keyword(s):

Local Population ◽

Color Space ◽

Color Measurement ◽

Color Spaces ◽

B Values ◽

Natural Teeth ◽

Shade Matching ◽

Shade Guide ◽

Shade Selection

ABSTRACT Aim The aim of this study is to compare the color space of Vita Lumin shade guide (SG) with the natural teeth of the local population. Materials and methods A total of 100 maxillary central incisors (100 patients) were subjected to color measurement with a spectrocolorimeter. For each tooth, L*, a*, b* values were recorded. All the shade tabs of Vita Lumin SG were analyzed with a spectrocolorimeter to define the color space covered by the Vita Lumin SG. The L*a*b* values of natural teeth were plotted on separate scattered diagrams and compared. Results About two out of three attributes (luminance and blue spectrum) of the local population of Bengaluru displayed a broader range than those available in Vita Lumin SG. Conclusion The local population requires an SG with an extended range, covering a higher luminance spectrum and broader blue spectrum. Clinical significance Esthetic restorations require accurate shade matching with the adjacent natural teeth, SGs being the mean of shade selection and communication should be comparable to the natural teeth. How to cite this article Shetty RM, Bhat AN, Gupta N, Mehta D, Srivatsa G, Singh I. Comparison between Color Spaces of Vita Lumin Shade Guide with Natural Teeth in Bengaluru Population using Spectrocolorimeter: An in vivo Study. J Contemp Dent Pract 2017;18(8):683-687.

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Evaluation of accuracy of shade selection using two spectrophotometer systems: Vita Easyshade and Degudent Shadepilot

European Journal of Dentistry ◽

10.4103/ejd.ejd_195_16 ◽

2017 ◽

Vol 11 (02) ◽

pp. 196-200 ◽

Cited By ~ 5

Author(s):

Mohammad Hassan Kalantari ◽

Seyed Ahmad Ghoraishian ◽

Mina Mohaghegh

Keyword(s):

Computer Aided Design ◽

In Vitro Study ◽

Color Selection ◽

Visual Color ◽

Computer Aided ◽

Shade Matching ◽

Aided Design ◽

Shade Guide ◽

Shade Selection

ABSTRACT Objective: The aim of this In vitro study was to evaluate the accuracy of shade matching using two spectrophotometric devices. Materials and Methods: Thirteen patients who require a full coverage restoration for one of their maxillary central incisors were selected while the adjacent central incisor was intact. 3 same frameworks were constructed for each tooth using computer-aided design and computer-aided manufacturing technology. Shade matching was performed using Vita Easyshade spectrophotometer, Shadepilot spectrophotometer, and Vitapan classical shade guide for the first, second, and third crown subsequently. After application, firing, and glazing of the porcelain, the color was evaluated and scored by five inspectors. Results: Both spectrophotometric systems showed significantly better results than visual method (P < 0.05) while there were no significant differences between Vita Easyshade and Shadepilot spectrophotometers (P < 0.05). Conclusion: Spectrophotometers are a good substitute for visual color selection methods.

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Do not neglect calcium: a systematic review and meta-analysis (meta-regression) of its digestibility and utilisation in growing and finishing pigs

British Journal Of Nutrition ◽

10.1017/s0007114518000612 ◽

2018 ◽

Vol 119 (11) ◽

pp. 1207-1219 ◽

Cited By ~ 1

Author(s):

Maciej M. Misiura ◽

João A. N. Filipe ◽

Carrie L. Walk ◽

Ilias Kyriazakis

Keyword(s):

Systematic Review ◽

Meta Analysis ◽

Accurate Determination ◽

Growing Pigs ◽

Finishing Pigs ◽

Factors Affecting ◽

Diet Formulation ◽

Negative Effect ◽

Meta Regression

AbstractCa digestibility and utilisation in growing pigs are not well understood, and are usually neglected in diet formulation. This has implications not only for the accurate determination of its requirements but also for its interactions with other nutrients. A systematic review and meta-analysis (meta-regression) of published trials was carried out to quantify factors affecting Ca absorption and utilisation, and to derive an estimate of Ca endogenous excretion. The analysis was carried out on the data from forty studies, corresponding to 201 treatments performed on 1204 pigs. The results indicated that although Ca absorption and retention (g/kg of body weight per d) increased with increasing Ca intake (P<0·001), non-phytate-P intake (P<0·001) and exogenous phytase supplementation (P<0·001), these values decreased with increasing phytate-P intake (P<0·05). Interactions between exogenous phytase and Ca intake, indicating reduced efficacy of this enzyme (P<0·001), and between phytate-P intake and exogenous phytase, counteracting the direct negative effect of phytate-P (P<0·05) on Ca absorption and retention, were also detected. There were no effects of animal-related characteristics, such as pig genotype in Ca absorption and retention. The large amount of variance explained in Ca absorption (90 %) and retention (91 %) supported our choice of independent variables. Endogenous Ca losses obtained via linear regression were 239 mg/kg of DM intake (95 % CI 114, 364). These outcomes advance the current understanding of Ca digestibility and utilisation, and should contribute towards establishing requirements for digestible Ca. Consequently, pig diets will be more correctly formulated if digestible Ca values are used in estimating requirements for Ca.

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Clinical Efficiency of Self-etching One-Step and Two-Step Adhesives in NCCL: A Systematic Review and Meta-analysis

Operative Dentistry ◽

10.2341/19-185-l ◽

2020 ◽

Vol 45 (6) ◽

pp. 598-607

Author(s):

CPP de Assis ◽

CAA Lemos ◽

JML Gomes ◽

BCE Vasconcelos ◽

SLD Moraes ◽

...

Keyword(s):

Systematic Review ◽

Statistical Difference ◽

Meta Analysis ◽

Marginal Adaptation ◽

Adhesive Systems ◽

Color Match ◽

Secondary Caries ◽

One Step ◽

Meta Analyses ◽

Postoperative Sensitivity

Clinical Relevance One-step self-etch adhesive systems provide a clinical time gain, decreasing the number of clinical steps. When a clinician is able to follow a simpler process of adhesion there is less chance of adhesive failure. SUMMARY Objective: A systematic review and meta-analyses were performed to evaluate whether one-step self-etching (1SSE) adhesive systems are as effective as two-step self-etching (2SSE) adhesives in noncarious cervical lesion (NCCL) restorations. Methods: This systematic review was conducted according to the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) and recorded in the PROSPERO (CRD42018096747). Electronic systematic searches were conducted in the following databases: PubMed/MEDLINE, Scopus, and Cochrane Library for published articles. Only randomized clinical trials that compared 1SSE with 2SSE adhesives systems were selected. The outcomes were retention, postoperative sensitivity, secondary caries, color match, marginal discoloration, marginal adaptation, and anatomical form. Results: The searches resulted in 476 studies. After applying the eligibility criteria, five randomized controlled trials were selected in which 822 restorations in NCCLs were distributed in 237 patients. The results showed no statistical difference between 1SSE and 2SSE in relation to retention (p=0.23; relative risk [RR]=1.55; 95% confidence interval [CI]=0.76, 3.19), postoperative sensitivity ( p=0.50; RR=3.00; 95% CI=0.13, 70.64), Secondary caries (p=0.63; RR=0.68; 95% CI=0.14, 3.31), color match (p=0.41; RR=0.64; 95% CI=0.23, 1.83), marginal discoloration (p=0.93; RR=1.02; 95% CI=0.65, 1.61), and anatomical form (p=0.56; RR=1.38; 95% CI=0.46, 4.13). However there was statistical difference in relation to marginal adaptation ( p=0.01; RR=1.95; 95% CI=1.14, 3.34). Conclusion: This systematic review with meta-analysis revealed that both 1SSE and 2SSE adhesive systems have comparable clinical effectiveness in a follow-up period of 12 to 24 months, except in relation to marginal adaptation.

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Interoperator Variability in Shade Selection using Two Shade Guides

International Journal of Prosthodontics and Restorative Dentistry ◽

10.5005/jp-journals-10019-1190 ◽

2017 ◽

Vol 7 (4) ◽

pp. 124-128

Author(s):

Trupti M Dahane ◽

Ritika Gupta ◽

Surekha Raghunath Godbole ◽

Ashok J Pakhan ◽

Anamika Shukla ◽

...

Keyword(s):

Visual Perception ◽

Selection Process ◽

Color Blindness ◽

T Test ◽

Central Incisor ◽

Shade Matching ◽

Shade Guide ◽

Shade Selection

ABSTRACT Statement of problem Research shows that correct shade matching for porcelain restoration cannot be achieved accurately even after using visual shade guides because there is always a noted difference in the visual perception of operators. Purpose This study was conducted to compare the interoperator variability in shade selection by visual techniques using VITA Toothguide 3D-Master and Vitapan classical shade guide and then to calculate the amount of percentage in variability in shade selection. Materials and methods Three prosthodontists selected the shade of upper right central incisor of 100 patients (age 20—30 years) in a standardized environment. Two shade guides were used—Vitapan classical shade guide and the VITA Toothguide 3D-Master (Vita Zahnfabrik) for shade selection. Each examiner was tested to eliminate color blindness. All teeth were polished before each shade selection, and the selection process was standardized for controlled lighting and procedures. The results were analyzed for repeatability using agreement analysis test, t-test (p = 0.05). Results According to the agreement analysis, there was about 14% of interperson variability seen in Vitapan classical shade guide and about 23% in VITA Toothguide 3D-Master. Conclusion Within the limitations of this study, the following result was drawn: VITA Toothguide 3D-Master showed higher interperson variability than Vitapan classical shade guide. How to cite this article Dahane TM, Gupta R, Godbole SR, Pakhan AJ, Sathe S, Shukla A, Jibhkate R. Interoperator Variability in Shade Selection using Two Shade Guides. Int J Prosthodont Restor Dent 2017;7(4):124-128.

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Social Media Use and Mental Health: A Global Analysis

Epidemiologia ◽

10.3390/epidemiologia3010002 ◽

2022 ◽

Vol 3 (1) ◽

pp. 11-25

Author(s):

Osman Ulvi ◽

Ajlina Karamehic-Muratovic ◽

Mahdi Baghbanzadeh ◽

Ateka Bashir ◽

Jacob Smith ◽

...

Keyword(s):

Mental Health ◽

Systematic Review ◽

Social Media ◽

Global Analysis ◽

Meta Analysis ◽

Empirical Literature ◽

Depression And Anxiety ◽

Inclusion Criteria ◽

Use Of Social Media ◽

The Relationship

Research indicates that excessive use of social media can be related to depression and anxiety. This study conducted a systematic review of social media and mental health, focusing on Facebook, Twitter, and Instagram. Based on inclusion criteria from the systematic review, a meta-analysis was conducted to explore and summarize studies from the empirical literature on the relationship between social media and mental health. Using PRISMA guidelines on PubMed and Google Scholar, a literature search from January 2010 to June 2020 was conducted to identify studies addressing the relationship between social media sites and mental health. Of the 39 studies identified, 20 were included in the meta-analysis. Results indicate that while social media can create a sense of community for the user, excessive and increased use of social media, particularly among those who are vulnerable, is correlated with depression and other mental health disorders.

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The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

Food & Function ◽

10.1039/d0fo01976c ◽

2021 ◽

Author(s):

Yali Wei ◽

Yan Meng ◽

Na Li ◽

Qian Wang ◽

Liyong Chen

Keyword(s):

Systematic Review ◽

Fatty Acid ◽

Polyunsaturated Fatty Acid ◽

Meta Analysis ◽

Chain Polyunsaturated Fatty Acid ◽

Inflammation Markers ◽

Pufa Supplementation ◽

Long Chain

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.

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