94 results match your criteria: "University of California Los Angeles School of Dentistry[Affiliation]"

Purpose/objectives: A precordial stethoscope (PS) is essential for ensuring clear breath sounds during open airway sedations. However, a traditional PS limits the ability of new users to simultaneously listen to heart and lung sounds alongside experienced practitioners, hindering their learning and development. Bluetooth speaker systems allow for multiple providers but amplify all noise.

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While root canal anatomy in Middle Eastern populations is well-studied, research on isthmi in mandibular permanent teeth from this region is limited. This retrospective study used cone-beam computed tomography (CBCT) to examine isthmi prevalence and location, as well as root canal morphologies (per Vertucci's classification) in mandibular permanent teeth from a subpopulation in Ardabil, Iran. The study is aimed at enhancing our understanding of dental anatomical variations in Middle Eastern populations.

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Multi-ancestry polygenic risk scores for venous thromboembolism.

Hum Mol Genet

September 2024

Transdivisional Research Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Dr, Rockville, MD 20850, United States.

Article Synopsis
  • Venous thromboembolism (VTE) poses significant health risks, with a notable difference in incidence rates between Black and White Americans.
  • Researchers developed polygenic risk scores (PRSs) for VTE using data from both European and African-ancestry populations to enhance predictive capability.
  • Results showed that multi-ancestry PRSs slightly outperformed ancestry-specific ones in predicting VTE risk, indicating potential benefits in using diverse data for better risk assessment across populations.
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Multi-ancestry polygenic risk scores for venous thromboembolism.

medRxiv

January 2024

Transdivisional Research Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, MD, USA.

Article Synopsis
  • Venous thromboembolism (VTE) significantly affects health outcomes and shows disparities in incidence between Black and White Americans, necessitating improved risk assessment methods.* -
  • Polygenic risk scores (PRSs) derived from diverse ancestry data performed better than traditional PRSs, indicating their potential for accurately identifying high-risk individuals for VTE in both European and African ancestries.* -
  • The study found that using multi-ancestry PRSs could enhance risk stratification, with individuals in the highest risk category having a substantially increased likelihood of VTE, suggesting a path towards personalized treatment approaches.*
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Dental Utilization of Refugee Children in Washington State Varies by Demographic Characteristics.

Pediatr Dent

September 2023

Periodontics and adjunct associate professor, Oral Health Sci- ences, both at the University of Washington, School of Dentistry, Seattle, Wash., USA.

To assess factors associated with the dental utilization of refugee children in Washington state who received oral health care. This study used Medicaid data of newly arrived children who resettled in 2015. Demographics, refugee population density groups, special care needs, dates of dental encounters, and dental claim variables were analyzed using descriptive statistics, analysis of variance (ANOVA), regression analysis, and the Cox proportional-hazard ratios (P<0.

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The aim of this study is to evaluate the effect of over-the-counter (OTC) at-home whitening products with LED light on partially- and fully-crystalized CAD/CAM lithium disilicate ceramics. Two partially-crystalized CAD/CAM lithium disilicate ceramics, Amber Mill and IPS e.max CAD, and one fully-crystalized CAD/CAM lithium disilicate ceramic, n!ce Straumann, were used.

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Ultrathin Partial Ceramic Veneers in the Esthetic Zone with Tooth Whitening: A 5-year Case Report.

Oper Dent

July 2023

Akimasa Tsujimoto, DDS, PhD, associate professor, Department of Operative Dentistry, University of Iowa College of Dentistry, Iowa City, Iowa, USA and visiting associate professor, Department of General Dentistry, Creighton University School of Dentistry, Omaha, NE, USA.

Objective: This case report describes a minimally invasive approach with tooth whitening and partial ceramic veneers in the esthetic zone with a 5-year follow-up.

Clinical Considerations: The patient was initially concerned about the tooth color and previous direct resin composite restorations that chipped on the incisal edges of both maxillary central incisors. Tooth whitening and partial veneers for both central incisors were recommended after clinical evaluation.

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Objectives: To assess the link between oral health knowledge (OHK), self-perceived oral health, and emergency room (ER)/urgent care utilization for a dental problem.

Methods: Data were analyzed from a convenience sample of 790 adult participants who presented to two US dental schools and completed an interviewer-administered survey. Key independent variables were OHK assessed with the Comprehensive Measure of Oral Health Knowledge (CMOHK) instrument, self-perceived oral health status and quality of life determined using the General Oral Health Assessment Index (GOHAI) scores.

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Objective: This case report describes the use of a combination of a polychromatic resin composite restoration and resin infiltration to achieve a satisfactory esthetic outcome that has lasted over five years.

Clinical Considerations: The patient's primary complaint was a desire to replace an existing stained resin composite on the facial and mesial surfaces of the maxillary left central incisor, and a white spot on the facial surface of the maxillary right central incisor. After clinical evaluation, the patient was offered either replacement of the restoration with a polychromatic restoration simulating a white spot, or a combined treatment with polychromatic composite and resin infiltration restorations, which was recommended.

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Objective: The aim of this study was to compare and characterize the structural and ultrastructural organization of the temporomandibular joint (TMJ) between two large animal models for use in the development of tissue engineering strategies.

Materials And Methods: Whole TMJs from sheep and pigs were evaluated with micro-computed tomography (μCT) for morphology and quantitative analyses of bone parameters. Histological examination was performed on the TMJ disc and its attachments to investigate regional distribution of collagen, elastin, and glycosaminoglycans (GAGs).

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The surgical and prosthodontic treatment for a 22-year-old man with ectodermal dysplasia is described and illustrated. He had never managed to wear complete dentures, and implant-retained or implant-supported prostheses were indicated. However, the placement of conventional maxillary endosseous implants was contraindicated.

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Implant related infections are the most common cause of joint arthroplasty failure, requiring revision surgeries and a new implant, resulting in a cost of $8.6 billion annually. To address this problem, we created a class of coating technology that is applied in the operating room, in a procedure that takes less than 10 min, and can incorporate any desired antibiotic.

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Stay updated on recent advances in clinical dentistry during COVID-19 pandemic and beyond.

Indian J Dent Res

July 2021

Professor Emeritus, Department of Periodontics, University of California Los Angeles School of Dentistry, USA, Editor-in-Chief, PracticeUpdate Clinical Dentistry; Past President, American Academy of Periodontology, USA.

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Bond strength of three chairside crown reline materials to milled polymethyl methacrylate resin.

J Prosthet Dent

March 2021

Professor of Clinical Dentistry, Division of Advanced Prosthodontics and Director, Advanced Prosthodontics Residency Program, University of California Los Angeles School of Dentistry, Los Angeles, Calif.

Statement Of Problem: Information on the bond strength of milled polymethyl methacrylate interim restorations when relined with chairside reline materials is lacking.

Purpose: The purpose of this in vitro study was to measure the shear bond strength of various combinations of 3 different chairside reline materials bonded to milled polymethyl methacrylate blocks with 3 different types of surface treatments.

Materials And Methods: Uniform blocks (10×10×22 mm) were milled from tooth-colored polymethyl methacrylate disks (Vivid PMMA; Pearson Dental Supply Co).

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Fusobacteriumnucleatum Adheres to Clostridioides difficile via the RadD Adhesin to Enhance Biofilm Formation in Intestinal Mucus.

Gastroenterology

March 2021

Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, Texas.

Background & Aims: Although Clostridioides difficile infection (CDI) is known to involve the disruption of the gut microbiota, little is understood regarding how mucus-associated microbes interact with C difficile. We hypothesized that select mucus-associated bacteria would promote C difficile colonization and biofilm formation.

Methods: To create a model of the human intestinal mucus layer and gut microbiota, we used bioreactors inoculated with healthy human feces, treated with clindamycin and infected with C difficile with the addition of human MUC2-coated coverslips.

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Oral disease in children is an urgent public health issue worldwide. Early childhood caries (ECC) affects 600 million children globally, yet it is entirely preventable. Dental health professionals around the world need to act to improve use of measures to prevent ECC and of quality dental health care to improve oral health worldwide.

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Statement Of Problem: Current in vivo and in vitro research has difficulty keeping pace with the rapid evolution of materials, protocols, and designs of the complete-arch fixed implant-supported prosthesis.

Purpose: The purpose of this survey was to determine the current prevalence of usage of various treatment modalities and materials for complete-arch fixed implant-supported prostheses.

Material And Methods: From November to December of 2018, a survey invitation was sent out to members of the Pacific Coast Society for Prosthodontics (PCSP).

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Background: The field of implant dentistry education is rapidly evolving as new technologies permit innovative methods to teach the fundamentals of implant dentistry.

Methods: Literature from the fields of active learning, blended learning, augmented reality, artificial intelligence, haptics, and mixed reality were reviewed and combined with the experience and opinions of expert authors. Both positive and negative aspects of the learning methods are presented.

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