Comparing feedback from faculty interactions and virtual assessment software in the development of psychomotor skills in preclinical fixed prosthodontics.

The purpose of this study was to determine the effectiveness of virtual assessment software as a means of immediate feedback for preclinical fixed prosthodontics course. The subjects of the study were second year dental students with no previous training in fixed prosthodontics. Nine students participated in the study.

Development and preliminary evaluation of a new screening instrument for atypical odontalgia and persistent dentoalveolar pain disorder.

Aim: To develop and preliminarily evaluate a new screening instrument for atypical odontalgia (AO) or persistent dentoalveolar pain disorder (PDAP). To evaluate the instrument's performance in detecting AO/PDAP amongst a heterogeneous group of orofacial pain conditions and pain-free controls and empirically compare its performance with an established neuropathic screening instrument (S-LANSS), which is the best available standard.

Methods: The study design was cross-sectional; subjects recruited included a convenience sample of pain-free controls (n = 21) and four groups of orofacial pain conditions: AO/PDAP (n = 22); trigeminal neuralgia (n = 21); temporomandibular disorder (n = 41); and acute dental pain (n = 41).

Use of Virtual Comparison Software for Preparation Depth Assessment in a Dental Technique Skills Course.

The aims of this study were 1) to determine whether the Compare software Comparison% score provided appropriate feedback for preparation depth on a non-anatomical tooth and 2) to define an acceptable tolerance for use in calculating the Comparison% for virtual assessment of cavity depth on a non-anatomical mandibular first molar. Forty-six non-anatomical ivorine teeth with laser-marked outlines on their occlusal surfaces were used for this study. One tooth was prepared at a 1.

Digital workflow to rehabilitate worn dentition on a non-hinge simulated patient.

This report describes the complete mouth rehabilitation of worn dentition by using a digital workflow on a non-hinge simulated patient. A dentiform was used to simulate a patient with loss of occlusal vertical dimension. Physical diagnostic waxing along with a digital workflow was then used to re-establish the occlusal vertical dimension at the interim and definitive restoration stages.

Development of an assessment strategy in preclinical fixed prosthodontics course using virtual assessment software-Part 2.

The purpose of this study was to evaluate interrater agreement between faculty and virtual assessments of preparations for complete coverage restorations in preclinical fixed prosthodontics. Teeth prepared during preclinical fixed prosthodontics practical exams at the University at Buffalo School of Dental Medicine were used in this study. Teeth were prepared for fabrication of complete cast, metal ceramic, and all ceramic crowns.

Development of an assessment strategy in preclinical fixed prosthodontics course using virtual assessment software-Part 1.

The purpose of this study was to develop an assessment strategy for preclinical foxed prosthodontics using a virtual assessment software. This descriptive study examined 80 collected ivory teeth from previous classes prepared during preclinical fixed prosthodontics course. Ivory teeth prepared for the complete cast (tooth no.

The Role of Stress in the Etiology of Oral Parafunction and Myofascial Pain.

Oral parafunction during waking comprises possible behaviors that can be measured with a comprehensive checklist or behavioral monitoring. Multiple studies lead to largely consistent findings: stressful states can trigger parafunctional episodes that contribute to myofascial pain. However, this simple causal pathway coexists with at least 3 other pathways: anxiety and stress are potent direct contributors to pain, pain results in maladaptive behaviors such as parafunction, and parafunction may be a coping response to potential threat coupled with hypervigilance and somatosensory amplification.

Loss of tooth structure associated with preparation for two monolithic CAD-CAM complete coverage restorations.

Statement Of Problem: Different techniques are used to fabricate complete coverage restorations. Each fabrication technique requires a specific preparation design that may violate a principle of tooth preparation, that is, conservation of tooth structure.

Purpose: The purpose of this in vitro study was to compare the volume of loss of mandibular first molar structure associated with a preparation for computer-aided design and computer-aided manufacturing (CAD-CAM) versus conventionally fabricated complete coverage restorations.

Nursing and Dental Students' Reflections on Interprofessional Practice After a Service-Learning Experience in Appalachia.

Nowhere is the discrepancy between good and poor oral health status more pronounced in the U.S. than in the Appalachian region, where there is a high incidence of dental problems related to non-flouridated water, limited access to care, and tooth loss.

Microbiological and clinical effects of an oral hygiene regimen.

Objective: This study compared the additional effect of rinsing with a fluoride-free and alcohol-free 0.075% cetylpyridinium chloride (CPC) mouthwash to brushing alone on dental plaque, gingival inflammation, and supragingival plaque bacteria.

Methods: Adult subjects [n = 68] completed a washout period prior to baseline evaluations that evaluated gingival inflammation, gingival bleeding, dental plaque, and pocket probing depths along with microbiological analysis of supragingival plaque for bacteria.

Providing Health Screenings in a Dental Setting to Enhance Overall Health Outcomes.

Data suggest that providers and patients have a favorable attitude toward chairside screening in the dental setting and are willing to participate in these activities. Likewise, efficacy studies indicate this strategy can effectively identify patients who are at increased risk of disease or have the presence of disease risk factors and could benefit from medical follow-up. Studies suggest it is feasible to conduct these screenings in the dental setting.

Ridge preservation using basic fibroblast growth factor-2 and collagenated biphasic calcium phosphate in beagle dogs.

Purpose: The aim of this study was to evaluate volumetric and histologic changes in edentulous alveolar ridge areas after ridge preservation using basic fibroblast growth factor-2 (bFGF-2) in combination with collagenated biphasic calcium phosphate (BCP).

Methods: The experiments were performed in 6 adult male beagle dogs. The following 3 groups were created: 1) ridge preservation with bFGF-2 and collagenated BCP (experimental group), 2) ridge preservation with collagenated BCP (positive control group), and 3) a negative control group in which no ridge preservation procedure was performed.

Prosthetic management of an existing transmandibular implant: A clinical report.

This report describes the prosthetic management of a fractured Dolder bar on a transmandibular implant system. The patient declined surgical removal of the implants. Therefore, to repair the superstructure, a cast Dolder bar was fabricated and luted onto the existing transmandibular implants.

Forensic bitemark identification: weak foundations, exaggerated claims.

Several forensic sciences, especially of the pattern-matching kind, are increasingly seen to lack the scientific foundation needed to justify continuing admission as trial evidence. Indeed, several have been abolished in the recent past. A likely next candidate for elimination is bitemark identification.

Efficacy of different irrigant protocols and application systems on sealer penetration using a stepwise CLSM analysis.

This study compared several irrigation protocols and application systems for sealer penetration into dentinal tubules. Single-rooted-human teeth were divided into 5 experimental groups (n = 15) and a control group (n = 5), according to final irrigation protocols: standard needle irrigation (SNI); Vibringe; Vibringe + NaviTip FX (Vibringe NFX); Endo Spray (ES); and passive-ultrasonic-irrigation (PUI). Following obturation of the root canals, the percentage of the sealer penetration was measured at different depths using stepwise CLSM analysis.

Subcutaneous Reaction of Rat Tissues to Nanosilver Coated Gutta-Percha.

Introduction: Gutta-percha (GP), is a neutral and non-toxic material. The aim of this animal study was to compare the biocompatibility of nanosilver coated GP (NS-GP) with conventional GP in subcutaneous tissues in a rat model.

Methods And Materials: Conventional GP and NS-GP were subcutaneously implanted in the backs of 20 male Wistar rats (=10).

Effect of Instrumentation Techniques and Preparation Taper on Apical Extrusion of Bacteria.

Introduction: The aim of this in vitro study was to evaluate the effects of different root canal instrumentation techniques and preparation tapers on the amount of apically extruded bacteria.

Methods: The root canals of 98 extracted human mandibular incisors were contaminated with Enterococcus faecalis suspension. After incubation at 37°C for 24 hours, the root canals were instrumented with K3 rotary files in a crown-down (CD) or full-length linear instrumentation technique (FL) by using 3 different root canal tapers (0.

Effects of Two Diode Lasers With and Without Photosensitization on Contaminated Implant Surfaces: An Ex Vivo Study.

Objective: The aim of this ex vivo study is to assess decontamination potential of two different diode laser wavelengths, with or without the aid of photodynamic therapy, on dental implant surfaces and to evaluate the harmful potential of temperature increase during laser irradiation.

Materials And Methods: One hundred thirty-two machined sterile implants were placed into sterile porcine bone blocks with standardized coronal angular bony defects and inoculated with Streptococcus sanguinis. Four different treatment protocols were used: 810 or 980 nm laser, with or without photosensitization.

Incidence of Deformation and Fracture of Twisted File Adaptive Instruments after Repeated Clinical Use.

Objectives: The aim of the present study was to investigate the incidence of deformation and fracture of twisted file adaptive nickel-titanium instruments after repeated clinical use and to identify and check whether the three instruments within the small/medium sequence showed similar or different visible signs of metal fatigue.

Material And Methods: One-hundred twenty twisted file adaptive (TFA) packs were collected after clinically used to prepare three molars and were inspected for deformations and fracture.

Results: The overall incidence of deformation was 22.

Protein Ontology (PRO): enhancing and scaling up the representation of protein entities.

The Protein Ontology (PRO; http://purl.obolibrary.org/obo/pr) formally defines and describes taxon-specific and taxon-neutral protein-related entities in three major areas: proteins related by evolution; proteins produced from a given gene; and protein-containing complexes.

Peri-implant disease: what we know and what we need to know.

Peri-implant disease is a serious problem that plagues today's dentistry, both in terms of therapy and epidemiology. With the expansion of the practice of implantology and an increasing number of implants placed annually, the frequency of peri-implant disease has greatly expanded. Its clinical manifestations, in the absence of a globally established classification, are peri-implant mucositis and peri-implantitis, the counterparts of gingivitis and periodontitis, respectively.

The Cell Ontology 2016: enhanced content, modularization, and ontology interoperability.

Background: The Cell Ontology (CL) is an OBO Foundry candidate ontology covering the domain of canonical, natural biological cell types. Since its inception in 2005, the CL has undergone multiple rounds of revision and expansion, most notably in its representation of hematopoietic cells. For in vivo cells, the CL focuses on vertebrates but provides general classes that can be used for other metazoans, which can be subtyped in species-specific ontologies.

The Use of Micro-Computed Tomography to Determine the Accuracy of 2 Electronic Apex Locators and Anatomic Variations Affecting Their Precision.

Introduction: The aim of this study was to compare the accuracy of 2 electronic apex locators (EALs), Apex ID (SybronEndo, Glendora, CA) and Root ZX (J. Morita, Tokyo, Japan), by means of micro-computed tomographic (micro-CT) imaging and to determine anatomic variations that may affect their accuracy.

Methods: The root canal length (RCL) and working length (WL) of 33 single-rooted premolars were measured using a visual method, 3-dimensional micro-CT reconstructions, and 2 different EALs.

Antimicrobial photodynamic therapy of S. mutans biofilms attached to relevant dental materials.

Background: Antimicrobial Photodynamic therapy (aPDT) has demonstrated efficacy in situations where conventional antibiotic therapies can be challenged such as biofilms, gram-negative bacteria, and antimicrobial resistant organisms. Surface characteristics can affect biofilm adherence and integrity and so may modify the effectiveness of aPDT. This study investigates the killing efficacy of aPDT on S.