Wear resistance of 3D printed occlusal device materials.

Statement Of Problem: Three-dimensional (3D) printing offers an efficient method of producing occlusal devices; however, their wear resistance is poorly understood.

Purpose: The purpose of this in vitro study was to compare the wear resistance of flexible and rigid 3D printed occlusal device materials with milled and conventionally processed occlusal device materials.

Material And Methods: Blocks (n=8) of 3 flexible 3D printed materials (KeySplint Soft, NightGuard Flex 2, SmileGuard), 2 rigid 3D printed materials (KeySplint Hard, NightGuard Firm 2), 1 milled material (Ceramill A-Splint), 1 thermoform material (Erkoloc-Pro), 1 light-polymerized material (Eclipse Prosthetic Resin), 1 heat-polymerized material (Excel Formula Heat Cure Denture Base Material), and 1 autopolymerized material (Great Lakes Splint Resin Acrylic) were prepared and wet polished with 1200-grit SiC paper.

Effect of build orientation on the fabrication trueness of additively manufactured implant-supported complete arch interim fixed prostheses.

Purpose: To evaluate how build orientation affects the fabrication trueness of additively manufactured implant-supported complete arch prostheses by comparing them to subtractively manufactured high-impact polymer-based prostheses.

Materials And Methods: An edentulous maxillary model with four implants at canine and first molar regions bilaterally was digitized (ATOS Core 80 5MP) to design a reference implant-supported complete arch prosthesis standard tessellation language file (RF-STL). The STL file was used to manufacture prostheses additively in five different orientations according to the build platform (AM-0, 0-degree; AM-15, 15-degree; AM-30, 30-degree; AM-45, 45-degree; AM-90, 90-degree) or subtractively (SM-HIP, control) (n = 10).

Timing implant provisionalization: Decision-making and systematic workflow.

Objective: Provisionalization is an important step to achieve esthetic results in implant cases, and many different techniques for provisional restoration fabrication have been described. However, depending on the clinical scenario, the provisionalization strategy will require different approaches and timing. The clinician should modify the provisional restorations efficiently to reduce the number of disconnections from the implant, as repeated disconnections may have biological consequences.

Perio-prosthodontic pontic site management, part II: Pontic site reconstruction strategies to enhance the esthetic and biological outcomes.

Objective: Ridge deformities are present in most patients after tooth extraction; these defects make the management of future implant and pontic sites challenging to deal with. The restorative team should be able to diagnose and treat these deformities to allow for successful outcomes. Many approaches have been described to reconstruct pontic sites, each with specific indications.

Evaluation of Skeletal and Dentoalveolar Changes in Patients With Class II Div 1 Malocclusion Treated With Twin Block Appliance.

Objective The study was focused on evaluating the change in mandibular morphology following the Twin Block appliance therapy and recording its effect on the maxilla and maxillary dentoalveolar complex. Also, the results of the Twin Block appliance between males and females were compared.  Material and methods In this two-armed retrospective cephalometric study, 30 patients (mean age 12 years) treated with Twin Block appliance for the period of 8-12 months were chosen, and their records were obtained to analyze.

Is Bipolar Radiofrequency-Assisted Liposuction Equivalent to Open Anterior Platysmaplasty in Facelift Surgery?

Background: During facelift surgery, anterior platysmaplasty (AP) has been used for decades, but it limits lateral advancement and can induce contour irregularities. Radiofrequency (RF)-assisted-liposuction in the anterior neck can avoid these disadvantages by tightening skin without open surgery.

Purpose: The purpose of the study was to compare the esthetic outcomes of facelift surgery with those of AP and RF.

Defining success in healthcare education: US dental student and faculty perspectives.

Purpose/objectives: Academic metrics and clinical performance are necessary but alone insufficient in describing success in dental education. This paper identifies themes critical for dental student success as commonly cited by both dental students and faculty.

Methods: Dental faculty interviews and pre-doctoral D2/D3/D4 student focus groups at two dental institutions generated data for thematic analysis.

Research routes on awake bruxism metrics: Implications of the updated bruxism definition and evaluation strategies.

Background: With time, due to the poor knowledge on it epidemiology, the need to focus on awake bruxism as a complement of sleep studies emerged.

Objective: In line with a similar recent proposal for sleep bruxism (SB), defining clinically oriented research routes to implement knowledge on awake bruxism (AB) metrics is important for an enhanced comprehension of the full bruxism spectrum, that is better assessment and more efficient management.

Methods: We summarised current strategies for AB assessment and proposed a research route for improving its metrics.

Complete Genome Sequences of Chop, DelRio, and GrandSlam, Three Phages Isolated from Soil in Central Arkansas.

Chop, DelRio, and GrandSlam are phage with a morphotype isolated from soil in Arkansas using the host Gordonia terrae 3612. All three are temperate, and their genomes share at least 96% nucleotide identity. These phage are assigned to cluster DI based on gene content similarity to other sequenced actinobacteriophage.

Perio-prosthodontic pontic site management, part I: Pontic designs and their current applications.

Objective: Emulating natural dentition with dental implant restorations is challenging, increasing its complexity when a pontic area must be restored. Many different methods have been described to solve this problem. The pontic designs which have been proposed have specific indications and may require additional treatments, including soft tissue augmentation procedures, to increase the possibility of an esthetically pleasing and biologically tolerable outcome.

Standardised Tool for the Assessment of Bruxism.

Objective: This paper aims to present and describe the Standardised Tool for the Assessment of Bruxism (STAB), an instrument that was developed to provide a multidimensional evaluation of bruxism status, comorbid conditions, aetiology and consequences.

Methods: The rationale for creating the tool and the road map that led to the selection of items included in the STAB has been discussed in previous publications.

Results: The tool consists of two axes, specifically dedicated to the evaluation of bruxism status and consequences (Axis A) and of bruxism risk and etiological factors and comorbid conditions (Axis B).

Utilizing an organizational development framework as a road map for creating a technology-driven agile curriculum in predoctoral dental education.

The landscape of dental education is undergoing a paradigm shift from both the learner's and teacher's perspectives. Evolving technologies, including artificial intelligence, virtual reality, augmented reality, and mixed reality, are providing synergistic opportunities to create new and exciting educational platforms. The evolution of these platforms will likely play a significant role in dental education.

Accuracy of mechanical torque-limiting devices for implant screw tightening: A systematic review and meta-analysis.

Statement Of Problem: A consensus is lacking on the accuracy of torque value on different types of mechanical torque-limiting devices.

Purpose: The purpose of this systematic review and meta-analysis was to determine the accuracy of unused mechanical torque-limiting devices.

Material And Methods: Electronic searches were conducted until October 2021 in 6 electronic databases.

Incidental Findings of Asymptomatic Fungal Infection.

Fungal sinusitis of the paranasal sinuses is a rare infection in healthy individuals but is relatively common in immunocompromised patients. It is often misdiagnosed and frequently a severe disease, as a few forms of it are linked with a higher mortality rate. Effective handling necessitates a speedy analysis and often counts on radiological findings.

The flat and step (F and S) pontics. Novel pontic designs for periodontally reconstructed sites.

Objective: Fixed dental prostheses are a predictable treatment option to replace missing teeth. A periodontal-prosthodontic approach to rehabilitating those areas ensures a predictable way to achieve the desired esthetic and functional results. This is especially important in cases with high esthetic demand.

Dimensional Changes in the Alveolus after a Combination of Immediate Postextraction Implant and Connective Grafting and/or Socket Shield Technique.

Immediate implant placement protocols after dental extraction have enabled a reduction in surgical phases. This procedure has increased patient satisfaction and similar survival rates to late implant placement procedures. However, placing an implant immediately after dental extraction does not counteract the physiological remodeling of alveolar bone.

Anna Karenina and the subgingival microbiome associated with periodontitis.

Background: Although localized aggressive periodontitis (LAP), generalized aggressive periodontitis (GAP), and chronic periodontitis (CP) are microbially driven diseases, our inability to separate disease-specific associations from those common to all three forms of periodontitis has hampered biomarker discovery. Therefore, we aimed to map the genomic content of, and the biological pathways encoded by, the microbiomes associated with these clinical phenotypes. We also estimated the extent to which these biomes are governed by the Anna Karenina principle (AKP), which states that eubiotic communities are similar between individuals while disease-associated communities are highly individualized.

The esthetic biological contour concept for implant restoration emergence profile design.

Objective: Emergence profile design is important for stable peri-implant tissues and esthetically pleasing results with dental implant restorations, influenced by factors, such as, implant position and surrounding soft tissues. Different aspects of the emergence profile have been described, but detailed explanations of the different zones and corresponding designs are missing. This article describes the esthetic biological contour concept (EBC), differentiating important areas of the emergence profile and recommending particular designs for those zones.

Hypochlorous Acid: A Review.

The surgeon needs to have an inexpensive, available, nontoxic, and practical disinfectant that is effective in sanitizing against the COVID-19 (Coronavirus Disease 2019) virus. The purpose of this article was to review the evidence for using hypochlorous acid in the office setting on a daily basis. The method used to assemble recommendations was a review of the literature including evidence for this solution when used in different locations and industries other than the oral-maxillofacial clinic facility.

Does the Use of High-Temperature-Processed Xenografts for Ridge Augmentation Result in Ridge Width Stability Over Time?

Purpose: Alveolar ridge augmentation is often required before implant placement. The purpose of the present study was to determine whether maxillary and mandibular ridge augmentation with a high-temperature xenograft remains stable over time.

Materials And Methods: A retrospective case series was performed of subjects who had undergone maxillary anterior or posterior ridge augmentation with a high-temperature xenograft (HTX).

Use of Tisseel, a Fibrin Sealant, for Particulate Graft Stabilization.

One clinical problem when augmenting a narrow or vertically deficient ridge is maintenance of the graft position during the immediate healing phase and preservation of the augmentation over time. The use of Tisseel (Baxter, Deerfield, IL), a fibrin sealant product, to stabilize particulate grafts, has been reported, and we have reviewed its use. Fibrinogen is converted to fibrin and forms a fibular network that binds the particulate graft.

The pterygospinous and pterygoalar ligaments and their relationship to the mandibular nerve: Application to a better understanding of various forms of trigeminal neuralgia.

Introduction: Ossification of the pterygospinous and pterygoalar ligaments has been well documented forming pterygospinous and pterygoalar bars. However, the actual ligaments have been rarely shown in the existing literature. Therefore, this study aimed to reveal the anatomy of the pterygoalar ligament/bar and pterygospinous ligament/bar, and its relationship with the branches of the mandibular nerve.

The utilization of snap-on provisionals for dental veneers: From an analog to a digital approach.

Objective: There are multiple treatment options to enhance a patient's smile, from conservative bleaching procedures to composite resins, porcelain veneers, or full-coverage crowns. Treating patients with porcelain veneers is a commonly used approach in esthetic dentistry. Provisional restorations for veneers can be time-consuming to make and difficult to retain.

Retrospective study to identify associations between clinician training and dental implant outcome and to compare the use of MATLAB with SAS.

Background: The aim of this study was to identify any associations between predictor variables, mainly clinician training and dental implant outcome, among the residents in different departments and to compare statistical analysis with the use of MATLAB R2017a™ to SAS version 9.4.

Methods: Dental records were reviewed from January 1, 2011, to December 31, 2015.