Publications by authors named "Cristina Gomez Polo"

Aim: While the importance of gingival aesthetics is increasingly recognized, a questionnaire quantifying its psychosocial impact is still lacking. We have adapted the validated Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) for the gingival context. This study's aim was to develop a new Psychosocial Impact of Gingival Aesthetics Questionnaire (PIGAQ) and test its validity for the general population in Spain, exploring the underlying dimensions of the construct assessed.

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  • Molar-incisor hypomineralization (MIH) is a common enamel defect in children that leads to an increased risk of cavities and dental treatments compared to those without the condition.
  • * The study analyzed 280 children aged 6 to 14, finding a significant association between MIH and various maternal health factors during pregnancy, as well as children's health factors like asthma and medication use.
  • * Conclusions suggest that while certain factors show a relationship with MIH, more comprehensive studies are needed to fully understand these connections and their effects on MIH prevalence in children.
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  • - The study investigated how concave and cylindrical abutments affect peri-implant soft tissue by measuring dimensions, collagen fiber orientation, and inflammatory responses in a randomized clinical trial involving 37 patients.
  • - Results showed that concave abutments led to significantly greater tissue height and barrier epithelium extension compared to cylindrical abutments, alongside more favorable collagen fiber alignment.
  • - Immunohistochemical analysis indicated lower inflammation with concave abutments, although both types showed similar vascular intensity; tissue remnants were also more prevalent on concave abutments.
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Objectives: To evaluate the bone changes around equicrestal and subcrestal implants, analyzing the effect of abutment height [short abutments (SA < 2 mm) and long abutments (LA > 2 mm)] and the three components of the peri‑implant soft-tissue phenotype.

Methods: Twenty-six patients received 71 implants that were placed according to supracrestal tissue height (STH) in an equicrestal (n = 17), shallow subcrestal ≈1 mm (n = 33), or deep subcrestal ≈2 mm (n = 21) position. After 3 months of healing, rehabilitation was completed using metal-ceramic crowns on multi-unit abutments of 1.

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Background: This study aimed to characterize dentistry, medicine and pharmacy students in terms of emotional intelligence (EI) and personality traits (PTs). It also sought to identify whether differences existed according to gender and degree program and the relationship between them.

Methods: Students enrolled in dentistry (115), medicine (85) and pharmacy (57) degree programs participated voluntarily in the research, including 59 men and 198 women.

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Purpose: To study the degree of accuracy in gingival shade matching of undergraduate students using a computer application.

Materials And Methods: In total, 76 undergraduate dental students' gingival shade selection abilities were evaluated using an in-house developed computer application. A total of 15 intraoral gingival photographs and 21 pink gingival color porcelain samples were used.

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To examine the differences between natural gingival colour in men and women. To determine the degree of predictability of changes in the gingival colour coordinates recorded for healthy gingiva, according to age, long-term medication, frequency of toothbrushing, and smoking habits. The CIELAB colour coordinates were recorded using a spectrophotometer for 360 Caucasian adult participants (aged 18-92 years), in three zones of the healthy attached gingiva of the maxillary central incisor.

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Introduction: There is evidence that the apico-coronal implant position and the mucosal phenotype can affect the extent of peri-implant bone loss. This clinical trial analyzes the bone remodeling and marginal bone loss that occur around conical-connection implants placed equicrestally and subcrestally, assessing the effect of the peri-implant soft-tissue phenotype.

Methods: Fifty-one patients received 56 implants of distinct diameters (3.

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Statement Of Problem: The Vita Toothguide 3D-Master (Vita Zahnfabrik) is considered the dental shade guide in which the three dimensions of color - lightness, hue, and chroma - are most well-ordered in the CIELAB color space. No research has yet explored how well the Vita Toothguide 3D-Master is ordered in the 3D color space by recording color coordinates in vivo.

Purpose: To evaluate the spatial color distribution of the Vita Toothguide 3D-Master's lightness, chroma, and hue groups and its 26 physical shade tabs.

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  • The study examines how the roughness of surfaces in complete-arch implant-supported prostheses affects the adhesion and retention of microorganisms and compares four different CAD-CAM materials.
  • Forty milled prostheses were categorized into four groups based on two high-performance polymers and two types of zirconia, with surface roughness measured before and after an aging process that involved thermocycling.
  • Results showed that while all materials maintained similar initial surface roughness after aging, zirconia specifically experienced increased roughness, and the performance of the polymer materials was comparable or slightly better than that of zirconia.
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A series of facet-engineered TiO/BaFeO composites were synthesized through hydrothermal growth of both phases and subsequent deposition of the different, faceted TiO nanoparticles onto BaFeO microplates. The well-defined geometry of the composite and uniaxial magnetic anisotropy of the ferrite allowed alternate interfaces between both phases and fixed the orientation between the TiO crystal structure and the remanent magnetic field within BaFeO. The morphology and crystal structure of the composites were confirmed by a combination of scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses together with the detailed study of BaFeO electronic and magnetic properties.

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No gingival shade guide exists that can be used as a 'gold standard' in gingival shade selection. This research, therefore, aimed to determine whether comparable results in subjective gingival shade selection can be achieved using basic gingival colours produced by distinct manufacturers. It also aimed to explore how coverage of the colour space is affected by mixing these basic colours to create additional shades.

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  • This study investigated the microgaps present at the implant-abutment interface for two types of dental abutments used with monolithic zirconia partial implants: transepithelial versus titanium base.
  • Sixty dental implants were tested, with one group using transepithelial abutments and the other using Ti-base abutments, subjected to simulations mimicking real-life conditions.
  • Results showed that the transepithelial abutments had significantly smaller microgaps (0.270 μm) compared to the Ti-base abutments (3.902 μm), but both types remained within clinically acceptable limits.
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Statement Of Problem: Research into the coverage error (CE) of gingival systems that have been expanded by using ceramic specimens created by mixing basic colors is lacking.

Purpose: The purpose of this in vitro study was to compare the CEs of 3 ceramic gingival color systems that have been expanded with basic-color mixtures from a sample of 360 White participants and to classify the participants according to the accuracy of the shade match achieved with each system.

Material And Methods: L*a*b* color coordinates were recorded in 3 zones of attached gingiva for 360 White participants with healthy gingival tissue (187 men and 173 women).

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Objective: (1) To put forward a set of valid pink ceramic samples for subjective gingival colour selection in the Caucasian population, and (2) to assess the quality of the shade matches provided by the selected pink samples.

Methods: The ceramic gingival shade samples (n = 133) were obtained by mixing pairs of basic colours from a single system. In each mixture, the proportions of the colours were altered in 10% increments, following the numerical order used by the manufacturers of the three colour systems under study (Heraceram, Vita VM9 and IPS Style).

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  • The study aimed to analyze the color of healthy attached gingiva near the maxillary incisors and how age and gender impact color coordinates in a sample of 216 Caucasian individuals.
  • Using a SpectroShade Micro spectrophotometer, researchers measured color coordinates and found significant differences between males and females, as well as an age-related change in color.
  • The findings suggest that while gender influences the color of attached gingiva to a statistically significant degree, the differences are clinically minor; additionally, the gingiva appears to take on a bluish hue with age, which could help clinicians select appropriate prosthodontic colors.
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  • The study investigates the link between sleep bruxism (SB) and sleep apnea-hypopnea syndrome (SAHS), focusing on their pathophysiological connection, risk factors, and shared symptoms.
  • After reviewing nine articles published from 2013 to 2021, the findings reveal that SB and SAHS co-occur in 21% to 41% of cases, with common signs such as rhythmic masticatory muscle activity preceding SAHS events.
  • The research identifies shared risk factors like age, obesity, smoking, and alcohol use, highlighting the importance of dentists recognizing this relationship for timely diagnoses as part of a healthcare team.
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  • The study aimed to determine how the orientation of 3D printing affects the surface roughness of interim crowns for dental implants made using digital light processing (DLP) technology.
  • Researchers created 30 crowns at three different print angles (0, 45, and 90 degrees) and measured their surface roughness using an optical system.
  • Results showed that the crowns printed at 90 degrees had the smoothest surfaces, while those printed at 45 degrees were roughest, indicating that print orientation significantly influences surface quality.
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Hybrid magnetic nanoparticles made up of an iron oxide, FeO, core and a mesoporous SiO shell with high magnetization and a large surface area were proposed as an efficient drug delivery platform. The core/shell structure was synthesized by two seed-mediated growth steps combining solvothermal and sol-gel approaches and using organic molecules as a porous scaffolding template. The system presents a mean particle diameter of 30(5) nm (9 nm magnetic core diameter and 10 nm silica shell thickness) with superparamagnetic behavior, saturation magnetization of 32 emu/g, and a significant AC magnetic-field-induced heating response (SAR = 63 W/g, measured at an amplitude of 400 Oe and a frequency of 307 kHz).

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In this study, we report the potential of 2D/2D TiO-GO-ZnFeO photocatalyst obtained using the fluorine-free lyophilization technique for the degradation of ibuprofen belonging to the group of active pharmaceutical ingredients (API). The improved ibuprofen degradation under simulated solar light was achieved in the presence of a composite of 2D TiO combined with GO and embedded ZnFeO, which additionally provides superparamagnetic properties and enables photocatalyst separation after the photodegradation process. After only 20 min of the photodegradation process in the presence of 2D/2D TiO-GO-ZnFeO composite, more than 90% of ibuprofen was degraded under simulated solar light, leading to non-toxic and more susceptible to biodegradation intermediates.

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Magnetic carbon nanocomposites (α-Fe/FeC@C) synthesized employing fructose and FeO magnetite nanoparticles as the carbon and iron precursors, respectively, are analyzed and applied for the removal of Cr (VI). Initial citric acid-coated magnetite nanoparticles, obtained through the co-precipitation method, were mixed with fructose (weight ratio 1:2) and thermally treated at different annealing temperatures ( = 400, 600, 800, and 1000 °C). The thermal decomposition of the carbon matrix and the FeO reduction was followed by thermogravimetry (TGA) and Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction, Raman spectroscopy, SQUID magnetometry, and N adsorption-desorption isotherms.

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(1) Background: This study compared the clinical and esthetic results of the double lateral sliding bridge flap (DLSBF) and the laterally closed tunnel (LCT) techniques, with a subepithelial connective tissue graft (SCTG), for the treatment of single Miller class II-III recessions in the mandibular anterior teeth. (2) Methods: This pseudorandomized clinical trial evaluated 14 patients, 7 of whom were part of the DLSBF + SCTG group, with an average follow-up of 58.7 ± 24.

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Objective: To study the sociodemographic and work-related factors that affect the level of burnout syndrome in Spanish dentists through an observational epidemiological study.

Method: An online survey answered by 1298 Spanish dentists was used to record their gender, age, work environment, number of practices in which they work, whether they work alone or not, whether they own or co-own the practice, years of experience, working hours per week, and their answers to the Maslach Burnout Inventory (MBI-HSS). A univariate analysis was carried out to study the relationship between the work-related and sociodemographic factors examined for each of the three dimensions of burnout: Emotional Exhaustion (EE), Depersonalisation (DP) and Personal Accomplishment (PA).

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  • The study aimed to evaluate how the geometry of scan body bevel locations and the angulation of implants affect the accuracy of complete-arch implant digital scans.
  • Two groups of models with angled and parallel implant positions were created, and five different bevel orientations were tested to measure discrepancies in scans using digital devices.
  • Results revealed that the bevel's location and implant spacing significantly impacted accuracy, with the lingual position showing the least discrepancies and parallel implants outperforming angled ones in accuracy.
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