Titanium implant wear from a zirconia custom abutment: A clinical report.

This clinical report describes damage to a 1-piece zirconia abutment where both biological and mechanical complications developed, resulting in premature loss of the implant. Scanning electron microscopy showed significant damage to the internal connection of the implant. When using 1-piece zirconia abutments with a titanium internal connection, periodic recall and identification of wear is necessary, especially in patients with repeated screw loosening.

Maintenance of Segmental Maxillary Expansion: The Use of Custom, Virtually Designed, and Manufactured Palatal Appliances Without the Use of an Occlusal Splint.

Expansion of the maxilla using a segmental Le Fort I osteotomy is a routine and commonly used procedure in the treatment of dentofacial deformities. Although orthognathic surgery has seen tremendous advancement in technology, including virtual surgical planning and customized hardware, some room for advancement exists in the maintenance of surgical maxillary expansion. Traditionally, this has been accomplished with retention of a maxillary occlusal splint 4 to 8 weeks postoperatively.

Modified fibula free flap harvesting technique for prevention of heterotopic pedicle ossification.

Background: Pedicle ossification is thought to arise from the residual perieosteum left along the pedicle during the fibula free flap (FFF) harvesting. Pedicle ossification in head and neck reconstruction can cause trismus, pain on mastication/turning the neck, or neck swelling.

Methods: Two patients reported in this article developed severe trismus within 6 months after mandibular reconstruction with FFF.

Use of Vascularized Myo-Osseous Fibula Free Flap to Reconstruct a Hemimandibular Defect With a Concomitant Skull Defect Arising From Stock Condylar Prosthesis Displacement Into the Middle Cranial Fossa.

Functional reconstruction of the temporomandibular joint (TMJ) is a controversial topic among oral and maxillofacial surgeons; this controversy becomes more complicated when one dives into the dilemma of the ideal reconstructive modality. TMJ defects might result from various etiologies, such as blunt or penetrating traumatic injuries, advanced degenerative joint disease, or various pathologic conditions, including benign and malignant conditions, that might arise from the TMJ or adjacent tissues. Reconstruction of the TMJ is vital because of its essential function in mastication, articulation, speech, and facial esthetics and symmetry.

Integrating Social Determinants of Health into Dental Curricula: An Interprofessional Approach.

Approaching patient care from a holistic perspective, incorporating not only the patient's medical and dental history but also psychosocial history, improves patient outcomes. Practitioners should be trained to provide this style of care through inclusive education, including training working on interprofessional teams. A component of this education must incorporate social determinants of health into the treatment plan.

Seven novel COL7A1 mutations identified in patients with recessive dystrophic epidermolysis bullosa from Mexico.

Recessive dystrophic epidermolysis bullosa (RDEB; OMIM #226600) is one of the most devastating subtypes of epidermolysis bullosa, a group of skin and mucous membrane blistering disorders often associated with extracutaneous manifestations. RDEB is caused by mutations in COL7A1, the gene encoding type VII collagen (C7), and to date over 700 different mutations in the 8835 nucleotides constituting the open reading frame or adjacent exon-intron boundaries of COL7A1 have been described. We used targeted next-generation sequencing to identify seven previously unreported mutations in a cohort of 17 Mexican patients who were diagnosed with RDEB based on clinical presentation and immunoepitope mapping.

Pain in Patients with Dystrophic Epidermolysis Bullosa: Association with Anxiety and Depression.

Objective: We investigate the presence and the quality of pain in patients with dystrophic epidermolysis bullosa (DEB), and its correlation with the level of anxiety and depression.

Methods: We collected data from 27 DEB patients and 26 healthy individuals. DEB patients and controls completed 1 scale for the quality of pain, and 1 scale for anxiety and depression.

Mechanical properties of resin-ceramic CAD-CAM materials after accelerated aging.

Statement Of Problem: The development of polymer-based computer-aided design and computer-aided manufacturing (CAD-CAM) milling bocks and the limited availability of independent studies on these materials make it pertinent to evaluate changes in their mechanical properties after simulated aging to identify strengths and limitations.

Purpose: The purpose of this in vitro study was to measure the effect of thermocycling on the flexural properties of ceramic, resin, and resin-ceramic CAD-CAM materials.

Material And Methods: Studied materials included Lava Ultimate Restorative (LVU; 3M ESPE), Enamic (ENA; VITA Zahnfabrik), Vitablocs Mark II (VM2; VITA Zahnfabrik), and Paradigm MZ100 (MZ1; 3M ESPE).

Fungal interactions with the human host: exploring the spectrum of symbiosis.

Fungi are ubiquitous transient or persistent human colonisers, and form the mycobiome with shifts in niche specific mycobiomes (dysbiosis) being associated with various diseases. These complex interactions of fungal species with the human host can be viewed as a spectrum of symbiotic relationships (i.e.

Use of Vital Pulp Therapies in Primary Teeth with Deep Caries Lesions.

Purpose: This manuscript presents evidence-based guidance on the use of vital pulp therapies for treatment of deep caries lesions in children. A guideline panel convened by the American Academy of Pediatric Dentistry formulated evidence-based recommendations on three vital pulp therapies: indirect pulp treatment (IPT; also known as indirect pulp cap), direct pulp cap (DPC), and pulpotomy.

Methods: The basis of the guideline's recommendations was evidence from "Primary Tooth Vital Pulp Therapy: A Systematic Review and Meta-Analysis.

Complications Associated With the Use of Recombinant Human Bone Morphogenic Protein-2 in Ridge Augmentation: A Case Report.

This case report aims to describe in detail a complication associated with resorption of regenerated bone following implant placement and ridge augmentation using recombinant human bone morphogenic protein-2 (rhBMP-2) in combination with allograft and xenograft. Bilateral maxillary sinus and ridge augmentation procedures were completed using rhBMP-2 combined with allograft and xenograft. Five months later, significant bone augmentation was achieved, which allowed for the placement of 4 implants.

Pro-Inflammatory Chemokines and Cytokines Dominate the Blister Fluid Molecular Signature in Patients with Epidermolysis Bullosa and Affect Leukocyte and Stem Cell Migration.

Hereditary epidermolysis bullosa (EB) is associated with skin blistering and the development of chronic nonhealing wounds. Although clinical studies have shown that cell-based therapies improve wound healing, the recruitment of therapeutic cells to blistering skin and to more advanced skin lesions remains a challenge. Here, we analyzed cytokines and chemokines in blister fluids of patients affected by dystrophic, junctional, and simplex EB.

Colorizing titanium-6aluminum-4vanadium alloy using electrochemical anodization: Developing a color chart.

Colorizing titanium alloys by electrochemical anodization is used in dentistry especially for identification purposes. Colorization is the result of distinct voltage applications to specific titanium alloys when placed in an electrolyte. Titanium and titanium alloys differ in their ability to be anodized.

Methacrylate Resin Adhesion in Root Canals Conditioned with Phosphoric Acid and Ethylenediaminetetraacetic Acid.

Objective: The purpose of this study was to determine the ability of a methacrylate resin dentin bonding agent to adhere to the dentin surfaces of prepared and conditioned root canals with either 32% phosphoric acid (PA) or 17% ethylenediaminetetraacetic acid (EDTA).

Methods: Prior to the application of the methacrylate resin, the root canals of 54 intact, caries-free, single- rooted, de-crowned, extracted human maxillary incisor and canine teeth were endodontically prepared and conditioned with either 32% PA or 17% EDTA or with distilled water as the unconditioned control. The resin-treated roots were cross-sectioned at three levels and scanning electron microscope (SEM) imaged for circumferential views of the root canals at 60-90× magnification and site-specific views at 250× magnification, and then randomly coded for independent and blind evaluation by four calibrated examiners.

How to Bond Zirconia: The APC Concept.

Zirconia has become one of the most popular materials in dentistry. New high-translucent zirconia ceramics have favorable optical properties and can be applied as monolithic full-contour restorations in various clinical indications for posterior and anterior teeth. However, having reliable cementation protocols is fundamental for clinical success of indirect ceramic dental restorations, including those made from zirconia materials.

A Novel Treatment Decision Tree and Literature Review of Retrograde Peri-Implantitis.

Background: Although retrograde peri-implantitis (RPI) is not a common sequela of dental implant surgery, its prevalence has been reported in the literature to be 0.26%. Incidence of RPI is reported to increase to 7.

Helping Dental Students Make Informed Decisions About Private Practice Employment Options in a Changing Landscape.

According to the 2014 American Dental Education Association (ADEA) Survey of Dental School Seniors, 45.3% of new graduates planned to enter private practice immediately after graduation; of those, while 65% planned to become an associate dentist in a private practice, 28.3% intended to enter a corporate group practice-the only category that saw an increase over the previous year.

Mechanical properties of resin-ceramic CAD/CAM restorative materials.

Statement Of Problem: The recent development of polymer-based computer-aided design and computer-aided manufactured (CAD/CAM) milling blocks and the limited availability of independent studies on these materials make it pertinent to evaluate their properties and identify potential strengths and limitations.

Purpose: The purpose of this in vitro study was to determine and compare mechanical properties (flexural strength, flexural modulus, modulus of resilience) and compare the margin edge quality of recently introduced polymer-based CAD/CAM materials with some of their commercially available composite resin and ceramic counterparts.

Material And Methods: The materials studied were Lava Ultimate Restorative (LVU; 3M ESPE), Enamic (ENA; Vita Zahnfabrik), Cerasmart (CES; GC Dental Products), IPS Empress CAD (EMP; Ivoclar Vivadent AG), Vitablocs Mark II (VM2; Vita Zahnfabrik), and Paradigm MZ100 Block (MZ1; 3M ESPE).

Full-Arch Rehabilitation of a Patient With Cyclic Neutropenia.

The purpose of this report is to discuss the treatment of a patient with cyclic neutropenia. This patient presented with flared teeth, thin alveolar bone, and mobile teeth. A staged approach was used to remove her teeth, augment the bone, use immediate fixed provisional to determine the type of final prostheses, and ultimately to use cone-shaped overdenture attachments to retain her final prostheses.

Assessment of Bone Width for Implants in the Posterior Mandible.

Purpose: After implants are placed into mandibular molar sites, it is assumed that crestal bone width will not change considerably over time. The purpose of this retrospective study was to determine crestal bone changes for implants placed into mandibular molar locations. The hypotheses for all groups (immediate, delayed, and grafted) were that no major changes in bone width of the posterior mandible would occur in the long term.

Sleep bruxism etiology: the evolution of a changing paradigm.

Various definitions, classifications and theories been ascribed to bruxism. Knowledge gained through expanding research initiatives have transformed some of the concepts that were once held as truths. Sleep bruxism is no longer considered a parasomnia nor is its etiology believed to be based on purely mechanical factors or psychological Issues.

Broken dental needle retrieval using a surgical navigation system: a case report and literature review.

This paper reports a case of fractured needle retrieval in the pterygomandibular space using the Medtronic surgical navigation system. Current literature on needle fracture and retrieval in the oral cavity was also reviewed. A literature search was conducted in the following databases: PubMed, MDConsult, The Cochrane Library, and Google.

Behavior symposium Workshop A report - current guidelines/revision.

A Workshop of attendees was convened following the completion of the American Academy of Pediatric Dentistry (AAPD) symposium, "Beyond the Guidelines: Factors Affecting Behavior Guidance." The title of Workshop A was Guidelines/Revisions and charges were to review whether the current AAPD Behavior Management Guidelines were adequate to guide delivery of dental care for children with specific attention to their effectiveness and safety, the protection of the pediatric patient and dentist, and the newly revised Protective Stabilization guideline, considering the presentations during the symposium. Major themes emerged as areas for consideration in future revisions of the guidelines: 1) toxic stress and the culture of poverty; 2) behavior risk assessment; 3) contemporary knowledge of pain theory; 4) deferred treatment; 5) parental presence in the operatory and 6) current use of protective stabilization.