Do Helmet Use and Type Influence Facial Trauma Occurrence and Severity in Motorcyclists? A Systematic Review and Meta-analysis.

Purpose: This article consists of a systematic review of the literature, which verified whether the use and types of helmets reduce the occurrence and severity of facial fractures in hospitalized motorcyclists after traffic accidents.

Materials And Methods: Prevalence studies and cohort studies, published in Latin American languages with no restrictions on publication dates, were considered. Two authors independently screened reference lists for eligible articles, assessed them for inclusion criteria, and extracted the data using a specific form.

Do Type of Helmet and Alcohol Use Increase Facial Trauma Severity?

Purpose: Facial trauma caused by motorcycle accidents has become a major issue because of its high prevalence and morbidity, causing death and esthetic and functional sequelae in many individuals. This work evaluated helmet and alcohol use and severity of facial fractures in motorcyclists treated at public hospitals in Pernambuco, Brazil.

Patients And Methods: This prospective study was conducted from December 2016 to December 2018 and submitted to statistical and descriptive analysis.

Demineralized bone matrix and calcium-phosphate cement in bone regeneration in rats.

Purpose: To compare bone regeneration in critical-sized defects in rat calvarium using demineralized bone matrix and calcium phosphate cement.

Methods: Thirty Wistar rats were divided into 3 groups of 10 animals each. Two defects of 5-mm were made in the parietal bones of each animal.

Evaluation of the nasal shape after orthognathic surgery.

Introduction: Patients with dentofacial deformities may benefit from orthognathic surgery in the maxilla. Maxillary osteotomy may include procedures in the bone, cartilaginous, and soft tissues of the nose, leading to shape alterations.

Objective: To evaluate the anatomic alterations of the nasal region in patients undergoing a Le Fort I osteotomy for advancement or superior impaction.

Effect of surgical repair of the joint capsule in mandibular condyle fractures in adult rats.

Purpose: The aim of the present study was to assess histologic changes in the temporomandibular joint (TMJ) of adult rats subjected to unilateral fracture of the mandibular condyle and soft tissue injury.

Materials And Methods: The animals were divided into 2 groups: one had surgical treatment for soft tissue repair and the other had no soft tissue treatment. All histologic evaluations were performed according to the presence or absence of synovitis, vascularity, presence or absence of joint inflammation, and presence or absence of the articular disc.

Physical therapy and anesthetic blockage for treating temporomandibular disorders: a clinical trial.

Purpose: the aim of this study was to evaluate the use of physical therapy and anesthetic blockage of the auriculotemporal nerve as a treatment for temporomandibular joint disorders.

Methods: the sample comprised of twenty patients with a diagnosis of disc displacement with/ without reduction and arthralgia according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD Axis I Group IIa, IIb and IIIa). Ten patients (group 1) underwent a cycle of eight anesthetic blockages of the auriculotemporal nerve with injections (1 per week) of 1 ml of bupivacaine 0.

Is a 5 mm rat calvarium defect really critical?

Purpose: To evaluate bone regeneration in critical defects in the rats' calvarium.

Methods: Eighteen rats Wistar were divided into three groups of six animals each according to the time of evaluation (15, 30 and 60 days). One calvarium defect of 5 mm was made in the parietal bone of each animal under general anesthesia.

The use of Portland cement in the repair of mandibular fractures in rats.

Purpose: To evaluate the bone healing of mandibular fractures following the use of Portland cement.

Methods: Thirty-two male Wistar rats were divided into control and experimental groups. In the control group the rats were submitted to a mandibular fracture, which was reduced, and the soft tissues were sutured.

Comparison between human and rat TMJ: anatomic and histopathologic features.

Purpose: To describe and evaluate normal rat temporomandibular joints from anatomic and histopathologic point of view and make a comparison between this joint in rats and humans.

Methods: Twelve male adult Wistar rats (12 same side joints) were used in this procedure. The following anatomical structures were histologically evaluated in a qualitative fashion: condyle, disc, temporal bone, retrodiscal tissue and synovia.

The use of carrageenan for limiting the mandibular movement in rats: a preliminary experimental study.

Purpose: The objective of this study was to evaluate if the carrageenan may be used for limiting the mandibular movement.

Material And Methods: Eighteen adult male Wistar rats were used for the research, 20 microl of carrageenan (4%) was infiltrated in the extra articular region, in front of the condyle to induce fibrosis. The rats were divided into groups according to the time of euthanasia (7, 15 and 30 days).

Treatment of chronic mandibular dislocations: a comparison between eminectomy and miniplates.

Purpose: Temporomandibular joint dislocation is defined as an excessive forward movement of the condyle beyond the articular eminence with complete separation of the articular surfaces and fixation in that position. The purpose of this study was to compare 2 types of treatment for chronic mandibular dislocations, eminectomy and miniplates, evaluate the results of these surgeries, and make a critical review of the literature.

Patients And Methods: The sample was obtained from the records of Oswaldo Cruz Hospital (Recife, Brazil) and comprised cases submitted to chronic mandibular dislocation treatment by eminectomy and by use of miniplates between 2000 and 2006.

Comparison between electrosurgery and cold blade in tongues of rats: a preliminary experimental study.

Purpose: To compare tissue cicatrization in the tongue of rats using electrosurgery and the cold blade.

Methods: Ten adult male Wistar rats were divided into two groups of 5 animals each, according to the time of sacrifice (3 and 7 days). Each animal had two incisions, one made with a cold blade and the other with an electric blade, both of which were approximately 0.

Treatment of chronic mandibular dislocations by eminectomy: follow-up of 10 cases and literature review.

Introduction: Temporomandibular joint (TMJ) dislocation is defined as an excessive forward movement of the condyle beyond the articular eminence, with complete separation of the articular surfaces and fixation in that position.

Objectives: To report ten cases treated by eminectomy for chronic mandibular dislocations, to evaluate the results of these surgeries and make a critical review of the literature.

Methods: The sample was obtained from the records of the Department of Oral and Maxillofacial Surgery, University of Pernambuco and comprises cases submitted to chronic mandibular dislocation treatment by eminectomy between 2002 and 2007.

Occupational stress among Brazilian oral-maxillofacial surgeons.

Purpose: The aim of the present study was to assess the stress level of oral-maxillofacial surgeons, based on the Demand-Control Model.

Methods: A cross-sectional study was carried out with 128 oral-maxillofacial surgeons who participated in the Brazilian Congress of Oral-Maxillofacial Surgery held in the city of Florianópolis, State of Santa Catarina, Brazil. Data was obtained using a questionnaire that incorporated the Demand-Control Model (Job Content Questionnaire), which evaluates psychosocial experiences at work.

Relationship between mandibular fracture and impacted lower third molar.

Unlabelled: Many studies have shown that the greatest risk of fracture of the mandibular angle is related to the presence of an unerupted lower third molar, based on the hypothesis that there is a decrease in the area of bone and absorption of the impact in this area, leading some surgeons to indicate its prophylactic removal in patients most exposed to the risk factors of facial trauma. On the other hand, other authors have observed a greater frequency of condylar fractures in patients without an impacted lower third molar.

Purpose: The aim of this study was to relate the condylar and angle fracture with an unerupted lower third molar, taking into account the position of the tooth.

Surgical treatment of temporomandibular joint ankylosis: follow-up of 15 cases and literature review.

Introduction: Ankylosis may be defined as the fusion of the articular surfaces with bony or fibrous tissue. The treatment of temporomandibular joint ankylosis poses a significant challenge because of the high incidence of recurrence.

Purpose: To report 15 cases treated by either gap arthroplasty, or the articular reconstruction technique using costochondral grafts, coronoid process grafts or alloplastic condylar implants; evaluate the results of these surgeries and make a literature review.

Passive drainage through the vestibular oblique incision in impacted inferior third molar surgery: a preliminary study.

The aim of the present study was to clinically evaluate the variables pain, swelling and trismus when two different suture techniques were applied in surgery of impacted lower third molars. The sample comprised 20 patients of both genders participating in the clinical trial at the Division of Oral and Maxillofacial Surgery, with an indication for the removal of bilaterally impacted lower third molars. They were divided into test and control groups.

Temporo mandibular joint ankylosis.

Unlabelled: Ankylosis may be defined as joint surfaces fusion. The treatment of temporomandibular joint ankylosis poses a significant challenge because of the high recurrence rate.

Aim: The aim of this study is to report six cases treated by joint reconstruction, evaluate the results of these surgeries and review the literature.

Evaluation of lidocaine and mepivacaine for inferior third molar surgery.

Objective: The aim of this study was to compare 2% lidocaine and 2% mepivacaine with 1:100,000 epinephrine for postoperative pain control.

Study Design: A group of 35 patients, both genders were recruited, whose had ages ranged from 13 to 27 years-old and had two inferior third molars in similar positions to be extracted. The cartridges were distributed to the patients according to a randomised pattern, where lidocaine was in the control group and mepivacaine in the experimental group.

Surgically assisted rapid maxillary expasion: a preliminar study.

Unlabelled: Surgically assisted rapid maxillary expansion is efficient for the treatment of transverse maxillary deficiencies in skeletally mature patients.

Aim: To study two techniques for surgically assisted rapid maxillary expansion: with or without pterygoid plate detachment.

Material And Methods: A longitudinal cohort study sample including ten patients aged 18-40 years, with a skeletal transverse discrepancy in the maxilla of more than 4 mm.