Comparison of Strengths of Mandibular Angle Fractures Following Different Plate Designs: A Human Cadaver Study.

Study Design: This institutional cross-sectional study using cadaveric mandibles aimed to measure and compare the strengths of three plating designs utilized in osteosynthesis of mandibular angle fractures.

Objective: There have been prior studies on angle fracture fixation though few biomechanical studies on human cadaveric specimen. This study aims to directly compare the biomechanical strength of different plating designs to the mandibular angle fracture using a human cadaveric specimen substrate.

Compressive modulus, translucency, and irradiance transmittance of clear PVS materials used for resin injection molding technique.

Objectives: To evaluate the compressive modulus, translucency, and light curing irradiance transmittance of four clear polyvinyl siloxane (PVS) materials used for the injection molding technique at varying thicknesses, and to assess the correlation between color parameters and irradiance transmittance.

Materials And Methods: Four clear PVS materials (Exaclear, Clear Bite Matrix, Affinity Crystal, and Memosil 2) were used in this study. Compressive modulus was measured by compressing cylindrical PVS specimens (n = 9; d = 10 mm; t = 6 mm) up to 30% strain using a universal testing machine.

Characterization of materials used for 3D printing dental crowns and hybrid prostheses.

Objectives: To compare the filler weight percentage (wt%), filler and resin composition, flexural strength, modulus, and hardness of several 3D-printed resins to direct and indirect restorative materials.

Materials And Methods: Four 3D-printed resins (C&B MFH, Ceramic Crown, OnX, and OnX Tough), one milled resin composite (Lava Ultimate), one conventional composite (Filtek Supreme), and one ceramic (IPS e.max CAD) were evaluated.

Wear of lithium disilicate opposed by various ceramic materials.

Objectives: To compare volumetric wear of lithium disilicate against different ceramic (3 mol% yttria-stabilized (3Y) zirconia, 5 mol% yttria-stabilized (5Y) zirconia, lithium disilicate, porcelain and enamel antagonists).

Materials And Methods: Forty lithium disilicate (e.max CAD) specimens (n = 8/antagonist) were wet sanded to 1200grit SiC and mounted into a UAB wear device.

Mortality of COVID-19 in patients with hematological malignancies versus solid tumors: a systematic literature review and meta-analysis.

Cancer patients are more vulnerable to COVID-19 compared to the general population, but it remains unclear which types of cancer have the highest risk of COVID-19-related mortality. This study examines mortality rates for those with hematological malignancies (Hem) versus solid tumors (Tumor). PubMed and Embase were systematically searched for relevant articles using Nested Knowledge software (Nested Knowledge, St Paul, MN).

The Photoshop Smile Design Technique.

Esthetic or cosmetic dentistry has become one of the main areas of dental practice emphasis and growth for the past several decades. Many articles have been written and courses taught over the years on concepts of smile design to develop a treatment plan for an esthetic outcome for the patient. The beauty of digital smile design is that patients can see the potential esthetic outcomes of treatment options in minutes.

New High-Translucent Cubic-Phase-Containing Zirconia: Clinical and Laboratory Considerations and the Effect of Air Abrasion on Strength.

Fabricating all-ceramic restorations with minimal or no application of a secondary phase while maintaining esthetics has been a sought-after goal of the dental profession. The objective has been development of a monolithic material with optical properties similar to the natural tooth without the need for layering porcelain. This article examines some of the newer cubic zirconia materials used in a monolithic form.

Hydroxychalcone inhibitors of Streptococcus mutans glucosyl transferases and biofilms as potential anticaries agents.

Streptococcus mutans has been implicated as the major etiological agent in the initiation and the development of dental caries due to its robust capacity to form tenacious biofilms. Ideal therapeutics for this disease will aim to selectively inhibit the biofilm formation process while preserving the natural bacterial flora of the mouth. Several studies have demonstrated the efficacies of flavonols on S.

Factors influencing the progression of noncarious cervical lesions: A 5-year prospective clinical evaluation.

Statement Of Problem: The etiology (chemical, friction, abfraction) of noncarious cervical lesion (NCCL) progression is poorly understood.

Purpose: The purpose of this 5-year prospective clinical trial was to measure the relationship between NCCLs and various etiologic factors.

Material And Methods: After review board approval, 29 participants with NCCLs were enrolled.

Evaluation of Different Polishing Systems and Speeds for Dental Zirconia.

Purpose: To evaluate two polishing systems and three polishing speeds on the gloss, roughness, and heat production of yttria stabilized tetragonal zirconia polycrystal (Y-TZP).

Materials And Methods: A Y-TZP block (Zenostar Zr Translucent) was sectioned into 4-mm-thick sections. Specimens (n = 30 per polishing system) were first wet ground with a fine diamond bur at 200,000 RPM for 15 seconds.

A new small molecule inhibits Streptococcus mutans biofilms in vitro and in vivo.

Aims: The aim of this study was to identify new small molecules that can inhibit Streptococcus mutans biofilms by in vitro and in vivo model.

Methods And Results: We evaluated the effect of a small molecule 2-amino-imidazole/triazole conjugate (2-AI/T) on the formation of Strep. mutans biofilms by culturing in 96-well plates.

Antibacterial and Antibiofilm Activities of Makaluvamine Analogs.

Streptococcus mutans is a key etiological agent in the formation of dental caries. The major virulence factor is its ability to form biofilms. Inhibition of S.

Canonical SecA associates with an accessory secretory protein complex involved in biogenesis of a streptococcal serine-rich repeat glycoprotein.

Fap1, a serine-rich repeat glycoprotein (SRRP), is required for bacterial biofilm formation of Streptococcus parasanguinis. Fap1-like SRRPs are found in many gram-positive bacteria and have been implicated in bacterial fitness and virulence. A conserved five-gene cluster, secY2-gap1-gap2-gap3-secA2, located immediately downstream of fap1, is required for Fap1 biogenesis.

A new small molecule specifically inhibits the cariogenic bacterium Streptococcus mutans in multispecies biofilms.

Streptococcus mutans is a major cariogenic bacterium. It has adapted to the biofilm lifestyle, which is essential for pathogenesis of dental caries. We aimed to identify small molecules that can inhibit cariogenic S.

Glycosylation and biogenesis of a family of serine-rich bacterial adhesins.

Glycosylation of bacterial proteins is an important process for bacterial physiology and pathophysiology. Both O- and N-linked glycan moieties have been identified in bacterial glycoproteins. The N-linked glycosylation pathways are well established in Gram-negative bacteria.

Interim obturator retained by an extraoral device: a clinical report.

This clinical report presents the treatment of an unfavorable bilateral maxillary defect with the use of an extraoral device to hold an interim obturator in place during tissue healing and maturation.

Patient-level and practice-level characteristics associated with receipt of preventive dental services: 48-month incidence.

Objectives: This study aims to: (a) quantify the incidence of preventive dental services [in-office fluoride application and dental cleaning (prophylaxis)]; (b) determine if these services are effectively targeted to patients with the highest need; and (c) quantify the role of practice characteristics and patient-level factors in service receipt.

Methods: A population-based prospective cohort study was conducted with 873 adults who had at least one tooth at baseline, 743 of whom provided 48-month data. In-person interviews and clinical examinations were conducted biennially for 48 months, with 6-monthly telephone interviews in between.

Differences in quality between dental practices associated with race and income mix of patients.

We recently demonstrated with the Florida Dental Care Study (FDCS) that the racial mix of the dental practice attended was significantly associated with patient-specific service receipt and health outcome. Therefore, our objective here was to determine if African Americans and lower-income people attended dental practices with characteristics systematically different from the practices attended by their counterparts. The FDCS was a prospective cohort study of 873 people at baseline who were followed for 48 months.

The glycan moieties and the N-terminal polypeptide backbone of a fimbria-associated adhesin, Fap1, play distinct roles in the biofilm development of Streptococcus parasanguinis.

Fap1, a fimbria-associated glycoprotein, is essential for biofilm formation of Streptococcus parasanguinis and mediates bacterial attachment to saliva-coated hydroxylapatite, an in vitro tooth model (E. H. Froeliger and P.

Practice characteristics associated with patient-specific receipt of dental diagnostic radiographs.

Objective: To quantify the role of practice characteristics in patient-specific receipt of dental diagnostic radiographic services.

Data Source/study Setting: Florida Dental Care Study (FDCS). Study Design.

Bone associated with implants in diabetic and insulin-treated rats.

Objectives: Diabetes is an increasingly prevalent disease with oral health manifestations. While diabetes clearly has an affect on bone, its impact on the healing of bone associated with dental implants is not completely understood. The purpose of this study was to measure bone response to implants in uncontrolled and insulin-controlled diabetic rats.

Effect of dental practice characteristics on racial disparities in patient-specific tooth loss.

Objective: The objective of this study was to test the hypothesis that dental practice characteristics are associated with tooth loss incidence with both tooth-specific and patient-specific characteristics already taken into account.

Research Design: A population-based prospective cohort study was conducted. In-person interviews and clinical examinations were done at baseline, 24, and 48 months, with telephone interviews every 6 months.

Evaluation of toothbrush and generalized wear of luting materials.

Purpose: To evaluate (1) the wear rates of various types of luting materials by means of toothbrush and generalized wear tests, and (2) the relationship between interfacial gap and luting material wear.

Methods: NiCr inlays were cemented into cylindrical Class I cavities prepared on flattened extracted molars with various luting materials (composite, compomer, hybrid and conventional glass-ionomers, and zinc phosphate). They were stored in 37 degrees C water for 24 hours and then resurfaced with a 600 grit Si-C paper.