LIVIVO - Search results -

Search results

Result 1 - 10 of total 421

Search options

Article ; Online: Thickness-Dependent Light Transmittance and Temperature Rise in Dual-Cure Bioactive and Light-Cure Bulk-Fill Composite Resins.

Alharbi, Reema / Alharbi, Eid / Al-Haj Ali, Sanaa N / Farah, Ra'fat I

2023 Volume 15, Issue 13

Abstract: ... and 4 mm of ACTIVA, Tetric-N-Ceram bulk-fill (TBF), Filtek One bulk-fill (FBF), and Filtek Z250 (FZ ... n = 6 per group, 96 in total) were light-cured with a visible blue low-intensity light-emitting ...

Abstract	This study aimed to assess the light transmittance (T) and temperature increase through different increments of dual-cure bioactive bulk-fill restorative material (ACTIVA), light-cure bulk-fill, and conventional composite resin materials. Cylindrical specimens with a diameter of 8 mm and heights of 1, 2, 3, and 4 mm of ACTIVA, Tetric-N-Ceram bulk-fill (TBF), Filtek One bulk-fill (FBF), and Filtek Z250 (FZ) (n = 6 per group, 96 in total) were light-cured with a visible blue low-intensity light-emitting diode (LED) (650-800 mW/cm
Language	English
Publishing date	2023-06-27
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym15132837
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Article ; Online: Knowledge and Attitudes of Saudi Medical Students about Emergency Management of Traumatic Dental Injuries.

Al-Haj Ali, Sanaa N / Farah, Ra'fat I / Alhariqi, Serene

International journal of environmental research and public health

2022 Volume 19, Issue 21

Abstract: Several studies indicate that physicians lack emergency management knowledge concerning traumatic dental injuries (TDIs), emphasizing the fact that medical students are not taught about this topic. This study aimed to assess the basic knowledge and ... ...

Abstract	Several studies indicate that physicians lack emergency management knowledge concerning traumatic dental injuries (TDIs), emphasizing the fact that medical students are not taught about this topic. This study aimed to assess the basic knowledge and attitudes of medical students in Saudi Arabia about emergency TDI management. This cross-sectional study recruited a convenience sample of medical students in their clinical years through social networking sites and asked them to answer a pretested internationally accepted questionnaire that included demographic questions, two case scenarios about crown fractures and avulsion of permanent teeth, and self-assessment questions. The data were analyzed statistically using descriptive statistics and the chi-squared test (
MeSH term(s)	Humans ; Students, Medical ; Cross-Sectional Studies ; Saudi Arabia ; Health Knowledge, Attitudes, Practice ; Tooth Avulsion/therapy ; Tooth Fractures ; Surveys and Questionnaires ; Tooth Injuries
Language	English
Publishing date	2022-10-31
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph192114249
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article ; Online: Evaluating the impact of scan body angulation and geometric attachments on the accuracy of complete-arch digital implant impressions: A comparison of two intraoral scanners.

Farah, Ra'fat I / Alresheedi, Bandar / Alazmi, Saad / Al-Haj Ali, Sanaa N

Journal of prosthodontics : official journal of the American College of Prosthodontists

2023

Abstract: ... without GAs, n = 20). Meshes obtained from the IOS scans were superimposed on the master reference mesh ...

Abstract	Purpose: To investigate the effects of scan body (SB) angulation and geometric attachments (GAs) on the deviations of complete-arch digital implant impressions obtained using intraoral scanners (IOSs), in relation to the gold-standard desktop scanner. Material and methods: Two IOSs (iTero and Omnicam), two SB angulations (0 degrees and 30 degrees), and GAs for the SBs were investigated. SBs were attached to an edentulous maxillary cast with the following implant analogs: parallel 0-degree at positions #13, #23, and #26, and 30-degree posteriorly tilted at position #16. The cast was digitized using a reference desktop scanner, followed by ten consecutive digital scans using each IOS (five scans with GAs and five without GAs, n = 20). Meshes obtained from the IOS scans were superimposed on the master reference mesh. Linear distance and 3D surface deviations from the reference mesh were calculated. A three-way multivariate analysis of variance (MANOVA) was employed to assess the effects of angulation, IOS type, and GAs on the combined dependent variables (α = 0.05). Results: No significant three-way interaction was observed between IOS type, SB angulation, and GAs for combined deviations from the reference scan (p = 0.56). Simple main effect analysis revealed that iTero exhibited significantly lower mean 3D surface and linear deviations than Omnicam (p < 0.05). Additionally, the use of GAs significantly reduced deviations (p < 0.001), with mean deviation reductions for both scanners ranging from 26-33 micrometers (µm) for 3D deviations and 15-21 µm for linear distance deviations. No differences were found between angled and parallel SBs regarding 3D surface and linear distance deviations (p ≥ 0.05). Conclusions: ITero demonstrated significantly smaller deviations, and the use of GAs led to significantly reduced distance and 3D surface deviations. SB angulations did not impact scan deviations.
Language	English
Publishing date	2023-11-22
Publishing country	United States
Document type	Journal Article
ZDB-ID	1197213-0
ISSN	1532-849X ; 1059-941X
ISSN (online)	1532-849X
ISSN	1059-941X
DOI	10.1111/jopr.13807
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 4029: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Evaluation of separating media for autopolymerizing acrylic resin fabricated on 3D-printed acrylate-based resin dental casts.

Farah, Ra'fat I / Elzeky, Moustafa / Alresheedi, Bandar / Al-Haj Ali, Sanaa N

The Journal of prosthetic dentistry

2023 Volume 130, Issue 1, Page(s) 110.e1–110.e5

Abstract: Statement of problem: Limited data are available regarding the most suitable separating medium for fabricating dental acrylic resin prostheses or appliances on 3-dimensional (3D)-printed resin casts.: Purpose: The purpose of this in vitro study was ... ...

Abstract	Statement of problem: Limited data are available regarding the most suitable separating medium for fabricating dental acrylic resin prostheses or appliances on 3-dimensional (3D)-printed resin casts. Purpose: The purpose of this in vitro study was to investigate and evaluate different separating media in terms of the ease of removal and detail reproduction of an autopolymerizing acrylic resin fabricated on acrylate-based 3D-printed resin casts. Material and methods: A cube-shaped cast was designed with a built-in truncated cone-shaped hole and a V-shaped groove at the base. Seventy-five casts were 3D-printed using acrylate-based resin and assigned to 5 groups according to the applied separating media: Siliform BEA (silicone-based), IMPRIMO 3D (alginate-based), 3D Modellisolierung (wax-based), TECHNOSIL (alginate-based), and none (control). After the application of the separating media, the truncated cone-shaped holes in the specimens were filled with autopolymerizing acrylic resin. The efficacy of the separating media was evaluated according to the ease of removal on a scale of 1 to 3 and accurate detail reproduction of the V-shaped groove on a scale of 1 to 3 under ×6 magnification. The nonparametric Kruskal-Wallis rank test was used to identify significant differences among the separating media (α=.05). Results: Significant differences were found among the groups (P<.001). Siliform BEA and 3D Modellisolierung had the best mean rank in both the ease of removal and detail reproduction scores, which were significantly different from those of the alginate-based separating media (IMPRIMO 3D and TECHNOSIL) and the control group (P<.01). Conclusions: The dedicated silicone- and wax-based separating media for 3D-printed casts exhibited the most favorable performance in terms of ease of removal and detail reproduction.
MeSH term(s)	Acrylic Resins ; Alginates ; Printing, Three-Dimensional ; Acrylates ; Silicones ; Materials Testing
Chemical Substances	Acrylic Resins ; Alginates ; Acrylates ; Silicones
Language	English
Publishing date	2023-05-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	218157-5
ISSN	1097-6841 ; 0022-3913
ISSN (online)	1097-6841
ISSN	0022-3913
DOI	10.1016/j.prosdent.2023.04.014
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Ul III Zs.145: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Reduction of aerosols and splatter generated during ultrasonic scaling by adding food-grade thickeners to coolants: an in-vitro study.

Farah, Ra'fat I / Althunayyan, Abdulrahman A / Al-Haj Ali, Sanaa N / Farah, Amani I

Clinical oral investigations

2021 Volume 26, Issue 3, Page(s) 2863–2872

Abstract: Objective: The effectiveness of using food-grade coolant thickener solutions on the amount of aerosols generated and splatter contamination spread distance during simulated ultrasonic scaling was examined.: Materials and methods: The study was ... ...

Abstract	Objective: The effectiveness of using food-grade coolant thickener solutions on the amount of aerosols generated and splatter contamination spread distance during simulated ultrasonic scaling was examined. Materials and methods: The study was performed using a phantom lower jaw placed on a black box. Simulated ultrasonic scaling was performed for 2 min using four coolant solutions: distilled water (control), 2% wt. polyacrylic acid (PAA), 0.4% wt. xanthan gum (XA), and 0.4% wt. carboxymethyl cellulose (CMC). The simulation was repeated 10 times for each coolant group. The generated aerosols and droplets were quantified using a handheld particle counter, and the splatter contamination spread distance was evaluated by adding tracing fluorescent dye to the coolant reservoir supplying the scaler unit. One-way multivariate analysis of variance was performed to determine the difference among coolant groups (a = .05). Results: The amount of aerosols and droplets and splatter contamination distance (p < .001) pertaining to the three food-grade coolant thickener solutions were considerably lower than those for the distilled water (control). The PAA group exhibited a significantly lower splatter contamination distance (p < .001) and a number of generated droplets (p = .031) than those of the XA group. The CMC group exhibited a significantly lower splatter contamination distance (p < .001) than that of the XA group. No statistically significant difference was observed between the PAA and CMC in terms of the three dependent variables (p > .05). Conclusion: The food-grade coolant thickeners could reduce the amount of generated aerosols and splatter contamination distance but not completely eliminate them. PAA and CMC solutions were more effective in reducing the aerosol/splatter during scaling compared to XA. Clinical relevance: Many dental procedures generate aerosols and splatter, which pose a potential risk to the patients and dental personnel, especially during the current COVID-19 pandemic.
MeSH term(s)	Aerosols ; COVID-19/prevention & control ; Humans ; Pandemics ; SARS-CoV-2 ; Suction ; Ultrasonics
Chemical Substances	Aerosols
Language	English
Publishing date	2021-11-16
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1364490-7
ISSN	1436-3771 ; 1432-6981
ISSN (online)	1436-3771
ISSN	1432-6981
DOI	10.1007/s00784-021-04265-0
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Cologne/Königswinter

Zs.A 4788: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾

Article: Levels and correlates of knowledge of teething among Saudi Arabian families.

Alkhozaim, Dina A / Al-Haj Ali, Sanaa N / Farah, Ra'fat I

PeerJ

2022 Volume 10, Page(s) e13948

Abstract: Background: Parental knowledge of teething has been repeatedly investigated; however, little emphasis has been made on the associated sociodemographic factors with good knowledge of the parents and whether or not good knowledge is translated into ... ...

Abstract	Background: Parental knowledge of teething has been repeatedly investigated; however, little emphasis has been made on the associated sociodemographic factors with good knowledge of the parents and whether or not good knowledge is translated into adopting proper pain-relieving practices. The present study aims to firstly assess the knowledge level and practices of Saudi parents regarding teething and then explore associated sociodemographic variables with good knowledge of teething to determine the relation between parents' knowledge of teething and their adoption of pain-relieving practices. Methods: This cross-sectional study recruited parents from the social networking sites Facebook, Twitter, Instagram, and WhatsApp, and they were asked to answer a pretested three-part internationally accepted questionnaire. Data were examined using descriptive statistics, chi-square analysis, multivariate logistic regression analysis, and Spearman rank-order correlation coefficient analysis. Results: One thousand four hundred ninety-nine parents responded and returned completed questionnaires. Of those, only 11.2% had good knowledge of teething. The majority of parents did not have basic knowledge of the teething period as well as believed that teething was associated with a runny nose (87.5%), diarrhea (77.9%), and sleep disturbance (72%). The results of multivariate logistic regression analysis indicated that parents with no primary school education (Odds Ratio: 0.29), or those who had an intermediate or secondary education level (OR: 0.55 and 0.78) were less likely to have good knowledge compared with parents who had a university degree. However, parents who earned intermediate monthly income (OR: 6.63) were more likely to have good knowledge of teething. With regards to practices used to relieve teething pain, inappropriate practices were observed regarding bottle feeding at night to soothe the child's pain (72%) and applying topical analgesics to rub the gum (72.4%). A significant positive correlation was found between the knowledge score and the practice score of both fathers and mothers ( Conclusion: A very low percentage of Saudi parents, mainly those with the highest education level and intermediate monthly income, had good knowledge of teething, which translated into appropriate practices to soothe the child's pain regardless of the parent's gender. Saudi parents should receive anticipatory guidance related to teething from all health professionals to ensure an uneventful teething period for their children.
Language	English
Publishing date	2022-08-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	2703241-3
ISSN	2167-8359
ISSN	2167-8359
DOI	10.7717/peerj.13948
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Expression, purification, and functional characterization of soluble recombinant full-length simian immunodeficiency virus (SIV) Pr55

Pillai, Vineeta N / Ali, Lizna Mohamed / Prabhu, Suresha G / Krishnan, Anjana / Tariq, Saeed / Mustafa, Farah / Rizvi, Tahir A

Heliyon

2023 Volume 9, Issue 1, Page(s) e12892

Abstract: The simian immunodeficiency virus (SIV) precursor polypeptide ... ...

Abstract	The simian immunodeficiency virus (SIV) precursor polypeptide Pr55
Language	English
Publishing date	2023-01-10
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e12892
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: An Extremely Rare and Aggressive Case of Undifferentiated Carcinoma With Osteoclast-Like Giant Cells of the Pancreas Presenting as a Paraneoplastic Syndrome: A Case Report and Literature Review.

AlAli, Mohammed N / Alothman, Ghada I / Essa, Mohamed S / Alrashed, Muath / Amer, Sadiq M / ALMuqrin, Farah / Albdah, Abdullah M / Alamri, Ossama

Cureus

2024 Volume 16, Issue 1, Page(s) e51996

Abstract: Undifferentiated carcinoma with osteoclast-like giant cells (UC-OGC) is a rare tumor type of pancreatic cancer. Paraneoplastic syndromes, an idiopathic inflammatory myositis characterized by various skin manifestations (such as dermatomyositis (DM)), ... ...

Abstract	Undifferentiated carcinoma with osteoclast-like giant cells (UC-OGC) is a rare tumor type of pancreatic cancer. Paraneoplastic syndromes, an idiopathic inflammatory myositis characterized by various skin manifestations (such as dermatomyositis (DM)), cannot be attributed to the primary tumor itself. Here, we report an unusual case of UC-OGC presenting as a paraneoplastic syndrome, the first reported from Saudi Arabia and the Arabian Gulf states. A 49-year-old Eritrean woman with known DM was referred to our hospital with a left-sided pleural effusion. Computed tomography of the abdomen revealed a large necrotic splenic mass (~17 × 12.9 × 18.2 cm). The patient underwent exploratory laparotomy with en bloc resection of the mass (splenectomy, distal pancreatectomy, and partial excision of the left hemidiaphragm). Following a histopathological examination of the mass, UG-OGC of the pancreas, presenting as a paraneoplastic syndrome, was diagnosed. To our knowledge, this case is the first to present a paraneoplastic syndrome associated with UC-OGC. The identification of an exceedingly rare tumor presenting atypically as a paraneoplastic syndrome shows the importance of conducting comprehensive examinations of patients with malignancies, emphasizing the need for more reports of similar cases.
Language	English
Publishing date	2024-01-10
Publishing country	United States
Document type	Case Reports
ZDB-ID	2747273-5
ISSN	2168-8184
ISSN	2168-8184
DOI	10.7759/cureus.51996
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Fabrication of Custom Post-And-Core Using a Directly Fabricated Silicone Pattern and Digital Workflow.

Farah, Ra'fat I / Aloraini, Abdullah S / Al-Haj Ali, Sanaa N

Journal of prosthodontics : official journal of the American College of Prosthodontists

2020 Volume 29, Issue 7, Page(s) 631–635

Abstract: This report introduces an alternative clinical and laboratory technique for the direct fabrication of a custom post-and-core pattern using poly (vinyl siloxane) (PVS) occlusal registration material, followed by a digital workflow. This technique ... ...

Abstract	This report introduces an alternative clinical and laboratory technique for the direct fabrication of a custom post-and-core pattern using poly (vinyl siloxane) (PVS) occlusal registration material, followed by a digital workflow. This technique decreases chairside time, eliminates the risk of locking the pattern into the postspace and improves accuracy of the custom post-and-core.
MeSH term(s)	Ceramics ; Computer-Aided Design ; Dental Prosthesis Design ; Silicones ; Workflow
Chemical Substances	Silicones
Language	English
Publishing date	2020-07-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	1197213-0
ISSN	1532-849X ; 1059-941X
ISSN (online)	1532-849X
ISSN	1059-941X
DOI	10.1111/jopr.13218
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Cologne/Königswinter

Zs.A 4029: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾

Article ; Online: Thickness-Dependent Light Transmittance and Temperature Rise in Dual-Cure Bioactive and Light-Cure Bulk-Fill Composite Resins

Reema Alharbi / Eid Alharbi / Sanaa N. Al-Haj Ali / Ra’fat I. Farah

Polymers, Vol 15, Iss 2837, p

2023 Volume 2837

Abstract	This study aimed to assess the light transmittance (T) and temperature increase through different increments of dual-cure bioactive bulk-fill restorative material (ACTIVA), light-cure bulk-fill, and conventional composite resin materials. Cylindrical specimens with a diameter of 8 mm and heights of 1, 2, 3, and 4 mm of ACTIVA, Tetric-N-Ceram bulk-fill (TBF), Filtek One bulk-fill (FBF), and Filtek Z250 (FZ) (n = 6 per group, 96 in total) were light-cured with a visible blue low-intensity light-emitting diode (LED) (650–800 mW/cm 2 irradiance). T, and the temperature increase, were measured using an optical power meter and a digital thermometer during curing. The T mean values ranged between 0.012 and 0.239 (76.02 to 98.81% light attenuation), while the temperature rise mean values ranged between 9.02 and 20.80 °C. The parameters, including material type (partial eta squared (ηp 2 ) = 0.284, p < 0.0001), thickness (ηp 2 = 0.284, p < 0.0001), and their interaction (ηp 2 = 0.185, p = 0.047), significantly affected the T values, whereas only the material type (ηp 2 = 0.352, p = 0.047) affected the temperature rise values. The T and temperature rise mean values were highest in ACTIVA increments of 1-mm increments, in particular, showing the highest T mean values, followed by similar increments of TBF. A significantly higher T was found in 1-mm increments compared to thicker increments for all materials ( p < 0.0001), and a significant positive correlation existed between T and temperature rise values ( r = 0.348, p = 0.001). These findings show that the bioactive material ACTIVA and TBF allow for better T than the other materials, with ACTIVA recording a higher temperature rise. However, the large light attenuation observed for all materials, irrespective of thickness, suggests that curing in more than one location with a low-intensity LED is necessary to optimize the curing process. Furthermore, incremental filling of bulk-fill materials using a low intensity LED could be beneficial.
Keywords	ACTIVA ; bulk-fill ; composite resin ; dual-cure ; light ; light-cure ; Organic chemistry ; QD241-441
Subject code	333
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED