The mouthguard for sports is capable of protecting the implant/crown complex when there is a frontal impact? Responding with finite element analisys.

The present data contribute to the specialties of Sports Dentistry and Implantology, offering scientific evidence of the importance of a mouthguard to provide the best protection for athletes rehabilitated with dental implants.

Effect of Different Surface Treatments as Methods of Improving the Mechanical Properties after Repairs of PMMA for Dentures.

Denture fractures are a common problem in dental practice, and their repair is considered a first option to restore their functional properties. However, the inter-material resistance may become compromised. Typically, the bond between these materials weakens.

Efficacy of bethanechol chloride in the treatment of radiation-induced xerostomia in patients with head and neck cancer: A systematic review and meta-analysis.

Background And Porpuse: Salivary glands sustain collateral damage following radiotherapy (RT) to treat cancers of the head and neck, leading to complications, including xerostomia and hyposalivation. This systematic review (SR) with meta-analysis was performed to determine the effectiveness of bethanechol chloride in preventing salivary gland dysfunction in this context.

Materials And Methods: Medline/Pubmed, Embase, Scopus, LILACS via Portal Regional BVS and Web of Science were searched electronically in accordance with the Cochrane manual and reported PRISMA guidelines.

Diagnosis, treatment and maxillofacial rehabilitation in rhinocerebral mucormycosis patient: A case report and review of the literature.

Mucormycosis is an aggressive, rare and opportunistic infectious disease, with a high mortality rate. Etiologic agents are filamentous fungi, and infection among humans normally occurs through spore inhalation. A 61-year-old male individual, presenting left eye amaurosis, dark epistaxis, hyperalgesia and malodor underwent clinical examination, which detected ulcerative lesion and wide bone exposure in the hard palate and alveolar ridge.

Orofacial trauma and mouthguard use in Brazilian rugby union players.

Background/aim: Rugby union represents a high-risk sport for orofacial trauma due to its impact collisions and repetitive tackles. The aim of this study was to investigate the prevalence of orofacial trauma according to mouthguard use among a sample of Brazilian rugby union players.

Methods: An online questionnaire was sent to the 16 best rugby union clubs in Brazil.

Determinants for traumatic orofacial injuries in sport: Extrinsic factors in a scoping review.

Background/aim: Sports practices carry a risk for orofacial injuries and, to avoid them, preventive measures are necessary. The aim of this study was to investigate a web of extrinsic determinants for orofacial trauma in sports.

Materials And Methods: Through a scoping review, eight extrinsic risk factors for sports-related orofacial trauma emerged from the thematic analysis.

Preparation, Antimicrobial Properties, and Cytotoxicity of Acrylic Resins Containing Poly(diallyldimethylammonium chloride).

Purpose: To design and analyze the biologic properties (antibacterial and antifungal, as well as cytotoxicity) of a dental biomaterial based on incorporation of the biocide poly(diallyldimethylammonium chloride) (PDADMAC) into the masses of self- and thermopolymerizable acrylic resins.

Materials And Methods: PDADMAC was diluted into tetrahydrofuran (4 wt%) and incorporated into self- and thermopolymerizable acrylic resins. PDADMAC inclusion was verified by measuring the contact angle with water droplets.

Custom-made facemask as a coadjuvant in the postoperative treatment of sport-related facial trauma: Case report.

Maxillofacial injuries are a regular consequence of sport activities that can force athletes to take a long time off from training and competitions. One way to decrease the time that the athlete needs to get back to his or her training exercises after surgery is to use a custom facemask as a coadjuvant in the postoperative recovery phase. This case report describes the case of a 16-year-old male athlete who suffered facial trauma (orbitozygomatic fractures) during a soccer game.

Is there enough evidence that mouthguards do not affect athletic performance? A systematic literature review.

Background: Although there is evidence that mouthguards prevent orofacial trauma occurrence during sport practice, the influence of this device on athletic performance has not been systematically quantified.

Objectives: We aim to systematically review the literature to determine the effect of mouthguards on athletic performance and if the type of mouthguard influences this overcome.

Materials And Methods: A comprehensive search was performed in the Systematic Electronic Databases: Pubmed, Scopus, Web of Science and the Cochrane Library from their inception to February 2017.

Genomic identification of microbial species adhering to maxillofacial prostheses and susceptibility to different hygiene protocols.

This study investigated the microbial colonization of maxillofacial prostheses and support tissues using the Checkerboard DNA-DNA hybridization method, and the efficacy of 0.12% chlorhexidine gluconate, 10% Ricinus communis solutions, or brushing, on colony forming unit (CFU) reduction in monospecies biofilms (Candida glabrata, Staphylococcus aureus, Streptococcus mutans, Escherichia coli, Enterococcus faecalis, and Pseudomonas aeruginosa) formed on two silicones (MDX 4-4210 and Bio-Skin). Biofilm was harvested from 43 maxillofacial prosthesis wearers for detection of 38 species of microorganisms.

A three-dimensional finite element analysis of the sports mouthguard.

Background/aim: The aim of this study was to evaluate the compressive and tensile stresses on dentin and enamel in five different situations: no mouthguard and mouthguards from 1 mm thickness up to 4 mm thickness, using finite element analysis.

Materials And Methods: A three-dimensional geometry of an upper right central incisor was obtained from a computed tomography and transformed into a mesh separating enamel from dentin. A mouthguard was created covering the buccal surface of the enamel in different thicknesses, and a rubber ball with a velocity of 5 m s(-1) was made as the impact object.

Mouthguard: a new technique for the partially edentulous patient.

Over the last decades, several articles have corroborated the need of using mouthguards in sports activities, manufactured with ethylene vinyl acetate (EVA) as their main material. There are different mouthguards techniques used by dentists worldwide to prevent injuries. A technique has been developed to help athletes, especially the partially edentulous patients, who were not getting the proper protection.

Assessment of nose protector for sport activities: finite element analysis.

There has been a significant increase in the number of facial fractures stemming from sport activities in recent years, with the nasal bone one of the most affected structures. Researchers recommend the use of a nose protector, but there is no standardization regarding the material employed. Clinical experience has demonstrated that a combination of a flexible and rigid layer of ethylene vinyl acetate (EVA) offers both comfort and safety to practitioners of sports.

Prevalence of malocclusions in the 13-20-year-old categories of football athletes.

The dentist can offer athletes improvement in their physical performance through the maintenance of oral health, preventing and treating any and all changes in the stomatognathic system, such as dental malocclusions, that compromise the athletes' performance. The objective of this study is to research the presence of dental malocclusions in athletes of the category between 13 and 20 years of age, from the São Paulo Football Club. 84 athletes participated in this study, dealing with the following topics: molar relation (Angle's classification); presence of overbite; underbite; overcrowding; abnormal spacing; open bite; and anterior, posterior, bilateral and unilateral crossbite; midline deviation and facial type (mesofacial, brachyfacial and dolichofacial).

Mechanical behavior of ethylene vinyl acetate copolymer (EVA) used for fabrication of mouthguards and interocclusal splints.

In the present investigation, an experimental dental arch model fabricated in epoxy was assayed in Kratos universal testing machine to study the mechanical behavior of ethylene and vinyl acetate copolymer (EVA) in the form of mouthguard for sports and flat plate. The following variables were considered: thickness (3 and 4-mm plates), temperature (room and mouth temperature) and presence/absence of artificial saliva. Mechanical properties of EVA were tested under compressive strength: apparent absorbed energy (J.