706 results match your criteria: "University of Iowa College of Dentistry[Affiliation]"

Wear Resistance of Light-Cure Resin Luting Cements for Ceramic Veneers.

J Funct Biomater

December 2024

Department of Operative Dentistry, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Japan.

The purpose of this study was to compare the wear resistance of light-cure resin luting cements for veneers with that of other luting materials investigated in earlier studies. An Alabama wear-testing machine was used to measure the wear resistance of four recent light-cure resin luting cements for veneers (G-Cem Veneer; Panavia V5 LC; RelyX Veneer Cement; and Vario-link Esthetic LC). The volume loss ranged from 0.

View Article and Find Full Text PDF

The 2024 ADEA Annual Session Chair of the Board Symposium titled, Global Collaborations to Change the Paradigm in Oral Health Education and Care, aimed to highlight innovative global education models in oral health. The symposium sought to identify and explore opportunities for collaboration with international partners to ensure sustainable healthcare education to improve the oral health workforce. Additionally, it focused on discovering and adapting innovative solutions and best practices to enhance access to oral health services worldwide.

View Article and Find Full Text PDF

The aim of the study is to describe the severity, temporal characteristics, and types of autonomic features as they relate to the characteristics of pain of the neuralgias. Also, to describe, based on literature, how these autonomic features can affect the treatment outcomes of patients with craniofacial neuralgias. We carried out a literature search using five databases, PubMed, Embase, OVID, Scopus and Web of Science.

View Article and Find Full Text PDF

Aim: Ultrasonography (US) has shown accuracy in imaging healthy periodontium. This study aims to evaluate the feasibility and accuracy of US for estimating dimensions of inflamed periodontium induced by ligature and bacteria.

Methods: Periodontal tissues of maxillary as well as mandibular premolars and molars in six female mini pigs were treated with ligature and three strains of bacteria for 4-10 weeks.

View Article and Find Full Text PDF

Introduction Complex interactions between cariogenic bacteria and host factors modulate dental caries. , a gram-positive facultative anaerobe plays a prominent role in the initiation of caries. The ability of to adhere to salivary enamel pellicle results in an acidic local habitat for the organism.

View Article and Find Full Text PDF

Purpose: To access and synthesize the existing literature about the effects of compassionate care on oral health outcomes.

Methods: A scoping review was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to identify articles from six electronic databases: MEDLINE via the PubMed interface, Embase, Age-Line, Scopus, CINAHL, and Cochrane.

Results: Among 30 studies reporting on compassion in dental treatment, only two reported on the effects of compassionate care on oral health outcomes.

View Article and Find Full Text PDF

Purpose: To evaluate the color match and stability of single-shade resin-based composites (RBCs) in Class V restorations before and after ultra-violet light artificial aging.

Methods: Acrylic resin teeth of A1 and A3 were randomly assigned into seven groups to be restored with single-shade RBCs and universal-shade RBCs, shades A1 and A3. Standardized Class V cavities were restored using RBC and underwent accelerated aging for 480 hours.

View Article and Find Full Text PDF

Efficacy of Novel Digital-Based Surgical Guide in the Limited Interocclusal Distance.

Bioengineering (Basel)

November 2024

Department of Prosthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.

Accurate implant placement is essential for achieving successful outcomes. To aid in this, digitally designed surgical guides have been introduced. Both closed-sleeve and open-sleeve designs are commonly utilized.

View Article and Find Full Text PDF

Fracture Resistance of Chairside CAD/CAM Lithium Disilicate Partial and Full Coverage Crowns and Veneers for Maxillary Canines.

Oper Dent

January 2025

Nathaniel C Lawson, DDS, PhD, director of Master of Science in Dental Biomaterials program and associate professor, Department of Clinical and Community Sciences, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA.

Objective: This study aimed to assess the fracture resistance of chairside computer assisted design and computer assisted manufacturing (CAD-CAM) lithium disilicate partial and full-coverage crowns and veneers for maxillary canines.

Methods And Materials: Forty-eight restorations for maxillary right canines (12 per group) were designed as follows: (1) partial crown with finish line in the upper middle third; (2) partial crown with finish line in the lower middle third; (3) traditional labial veneer; and (4) traditional full-coverage crown. Restorations were fabricated out of lithium disilicate (Amber Mill, Hassbio) using a chairside CAD-CAM system (Cerec Dentsply Sirona).

View Article and Find Full Text PDF

This study aimed to clarify the effects of high-concentration fluoride varnish application on the inhibition of the progression of initial enamel caries. Remineralization capacity and acid resistance following high-concentration fluoride varnish application were compared with untreated models and models treated with fluoride mouthwash. Bovine enamel was used to create a model of initial enamel caries.

View Article and Find Full Text PDF

Universal shade flowable composites have been introduced to mimic tooth structure with reduced color mismatch and reduced chair time and cost. However, the polymerization shrinkage of resin material may lead to sensitivity and restoration failure. The purpose of this study was to compare the polymerization shrinkage of recently introduced universal shade flowable resin-based composites using both wet and dry density methods.

View Article and Find Full Text PDF

Squamous cell carcinomas (SCC) are often preceded by potentially malignant precursor lesions, most of which remain benign. The terminal exhaustion phenotypes of effector T-cells and the accumulation of myeloid-derived suppressor cells (MDSC) have been thoroughly characterized in established SCC. However, it is unclear what precancerous lesions harbor a bona fide high risk for malignant transformation and how precancerous epithelial dysplasia drives the immune system to the point of no return.

View Article and Find Full Text PDF

Enhancing dental education with a 3D point cloud comparison and augmented reality for auto-evaluation of fixed prosthodontic practice: An in vitro study.

J Dent

February 2025

Institute for Translational Research in Dentistry, Kyungpook National University, Daegu, Korea; Department of Prosthodontics, University of Iowa College of Dentistry and Dental Clinics, Iowa City, IA, USA; Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Korea. Electronic address:

Article Synopsis
  • Traditional evaluations of dental students' fixed prosthodontic skills are often time-consuming and subjective, prompting the development of a new 3D auto-evaluation tool utilizing augmented reality (3DAR) to improve the efficiency and reliability of these assessments.
  • The study involved 50 dental students who prepared tooth models, which were then scanned and evaluated using the 3DAR algorithm, resulting in strong reliability scores compared to a traditional manual scoring method, while also saving significant time during evaluations.
  • The results indicated that the 3DAR method not only provided highly reliable assessments but also drastically reduced evaluation time and received positive feedback from users, highlighting its potential to enhance dental education.
View Article and Find Full Text PDF

Objectives: This case report describes the clinical protocols for the removal of crowns, tooth extraction, immediate implant placement, and cementation of new crowns, all performed under total or partial isolation with a dental dam.

Clinical Considerations: The patient's chief complaint was dissatisfaction with her smile. Radiographic and clinical evaluations led to the recommendation to replace the porcelain-fused-to-metal crowns on the maxillary central and lateral incisors with all-ceramic crowns.

View Article and Find Full Text PDF

Objectives: Variations in transmucosal abutment contour design may affect the outcomes of implant therapy. This randomized controlled trial was primarily aimed at testing the effect that CAD/CAM zirconia abutments with either a concave or linear divergent transmucosal morphology have on peri-implant mucosal dynamics and indicators of peri-implant health at 1 year after final implant-supported prosthesis insertion in the anterior maxilla.

Materials And Methods: Following computer-guided implant placement and osseointegration, eligible subjects were randomized into either the experimental (concave morphology) or the control (linear divergent morphology) group.

View Article and Find Full Text PDF

DNA and RNA Methylation in Periodontal and Peri-implant Diseases.

J Dent Res

February 2025

Department of Oral Biochemistry, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Sweden.

Periodontal and peri-implant diseases are primarily biofilm-induced pathologies in susceptible hosts affecting the periodontium and dental implants. Differences in disease susceptibility, severity, and patterns of progression have been attributed to immune regulatory mechanisms such as epigenetics. DNA methylation is an essential epigenetic mechanism governing gene expression that plays pivotal roles in genomic imprinting, chromosomal stability, apoptosis, and aging.

View Article and Find Full Text PDF

Purpose: The aim of this study is to investigate the existing evidence regarding the effectiveness of strategies aimed at combating ageism against older adults among dental students.

Methods: A systematic review was performed following preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines to identify articles from seven electronic databases: MEDLINE via the PubMed interface, Embase, Age-Line, Scopus, Web of Science, CINAHL, and Cochrane.

Results: Among twenty-four references reporting on ageism among oral health care providers and/or students, only two reported on the outcomes of strategies for combating ageism at dental schools, with a 12-year gap between them.

View Article and Find Full Text PDF

Background: This study aimed to evaluate the color stability of bulk-fill flowable resin composites with 2 difference shades at baseline and after artificial aging.

Methods: Disk-shaped specimens (Ø10 × 4 mm) were fabricated from three bulk-fill flowable resin resin composites (Filtek Bulk-Fill Flow, Venus Bulk-Fill Flow, and Estelite Bulk-Fill Flow). The specimens in each bulk-fill resin composite group were divided into two subgroups (n = 10 per subgroup) with two different shades, A1 (N = 30) and A3 (N = 30), and were polymerized with light curing (800 mW/cm/Valo LED Unit, Ultradent) and polished.

View Article and Find Full Text PDF

Statement Of Problem: To create custom posts for endodontically treated teeth with a digital workflow, clinical guidelines governing digital scan techniques are needed. However, the evidence for the accuracy of intraoral scanners (IOSs) is limited for different tooth types and post space lengths.

Purpose: The purpose of this in vitro study was to evaluate the trueness of post space scans made with 2 different IOSs for various tooth types and post space lengths.

View Article and Find Full Text PDF

The esthetics of immediate implant dentistry can be challenging. Clinical considerations for immediate implant placement have demonstrated long-term success rates comparable to traditional delayed implant protocols. However, it is a sensitive technique that requires proper treatment planning as well as meticulous execution to be predictable and successful in the long term.

View Article and Find Full Text PDF

Purpose: The aim of this study is to investigate the effectiveness of geriatric dentistry courses as a combating strategy against ageism among dental students.

Methods: A pre-post prospective study was conducted in three different dental schools located in the State of Sao Paulo, Brazil, that offered geriatric dentistry courses in their curricula. A questionnaire specifically developed for this research and the "Ageism Scale for Dental Students" (ASDS) were applied before and after geriatric dentistry courses in all three dental schools.

View Article and Find Full Text PDF

Objectives: This study investigates longevity of glass ionomer restorations in an older adult population.

Methods: This was a retrospective study based on clinical records. Patient records for 3,665 restorations in 1,777 adults 65 or older who had received a restoration between 12th July 2016 and 20th October 2022 were extracted from the electronic dental records system of the University of Iowa College of Dentistry and Dental Clinics.

View Article and Find Full Text PDF

Biomimetic Restorative Dentistry: an evidence-based discussion of common myths.

J Appl Oral Sci

October 2024

Universidade Estadual de Ponta Grossa , Departamento de Odontologia Restauradora , Paraná , Brasil .

This narrative review critically examines some protocols of biomimetic restorative dentistry (BRD), which supposedly outperforms traditional adhesive techniques. This review explores the origins of BRD, introduces cognitive biases influencing the adoption of BRD protocols without evidence scrutiny, and discusses nine BRD protocols. For this, we searched randomized clinical trials and systematic reviews in the literature on the PubMed, Embase, and Cochrane Library CENTRAL databases, which lead to the following conclusions about the revised protocols: 1) The use of dyes excessively removes carious dentin; 2) Aluminum oxide air abrasion contributes to overtreatment and may pose long-term health risks to dental professionals; 3) Beveling enamel in posterior teeth is technically difficult and leads to unnecessary loss of adjacent sound enamel with no evidence of its use outperforming butt-joint preparations; 4) Deactivating matrix metalloproteinases with chlorhexidine shows no clinical evidence of improving restoration longevity.

View Article and Find Full Text PDF

Postoperative pain is a common concern following root canal treatments (RCT), impacting both patients and oral health practitioners. This systematic review and meta-analysis aimed to evaluate the effectiveness of laser treatment modalities in reducing postoperative pain compared to conventional methods after primary and secondary RCT in permanent mature teeth. A search of three electronic databases (PubMed, ScienceDirect, and The Cochrane Library) was conducted, using a broad range of keywords and terms.

View Article and Find Full Text PDF