Angle Class I malocclusion with anterior open bite treated with extraction of permanent teeth.

This clinical case reports the orthodontic treatment of a Class I malocclusion with anterior open bite and bimaxillary dentoalveolar protrusion in a 28-year-old female patient. The treatment of choice was to perform tooth extractions followed by retraction of the anterior teeth, with consequent closure of the anterior open bite and better accommodation of the teeth on their bony bases. This case was presented to the Brazilian Board of Orthodontics and Facial Orthopedics (BBO), representing the Category 2 -- i.

Mechanical evaluation of orthodontic mini-implants of different lengths.

Purpose: The current study sought to evaluate the influence of the length of the mini-implant on its mechanical properties.

Materials And Methods: A total of 405 mini-implants from the same manufacturer were divided into 3 groups (n = 135) according to whether they were 6, 8, or 10 mm in length. An insertion torque test was performed using minipig osseous tissue of different cortical thicknesses (1 mm to 6 mm).

Orthodontic treatment in an elderly patient with extraction of upper premolar.

In the past few years, life expectancy of the world's population has gradually increased and as a result the number of elderly patients seeking orthodontic treatment is becoming higher. The objective of this work is to report a clinical case of orthodontic treatment of an elderly patient in which a dental extraction was performed to correct the relationship between upper and lower arches. The results favoured an improved dental arch relationship and promoted adequate aesthetics and function.

Comparative evaluation of esthetic perception of black spaces in patients with mandibular incisor extraction.

Objective: To evaluate the degree of perception of laypersons, dental professionals, and students with regard to the esthetics of the smile in cases of mandibular incisor extractions with the presence of black spaces between them.

Materials And Methods: Changes were made to a front-view intraoral photograph of occlusion treated by means of a mandibular incisor extraction, simulating various configurations of black spaces between mandibular incisors. For this purpose, a specific image manipulation program was used (Photoshop CS3).

In vitro evaluation of fluoride release of orthodontic bonding adhesives.

Aim: To assess the fluoride release from adhesives used for bonding in orthodontics.

Methods: Six bonding agents were evaluated: five adhesives (Biofix, Fill Magic Orthodontic, EagleBond, Orthobond, and Transbond XT) and one resin-reinforced glass-ionomer cement (Fuji Ortho LC), the latter serving as a control. Ten samples of each adhesive were stored in containers with 5 mL of deionized distilled water at 37°C.

Eagle's syndrome in an orthodontic patient.

This purpose of this article was to report the clinical case of a patient with Eagle's syndrome. She was referred to the orthodontic clinic by her general clinician, with the complaint of temporomandibular dysfunction. The orthodontic records showed a styloid process elongation accompanied by calcification and fracture on the right side.

Perception of the esthetic impact of mandibular incisor extraction treatment on laypersons, dental professionals, and dental students.

Objective: To evaluate the degree of perception of laypersons, dental professionals, and dental students regarding dental esthetics in cases with mandibular central incisor extraction.

Materials And Methods: Using a smile photograph of a person with normal occlusion and all teeth, modifications were made to reflect the extraction of a mandibular incisor of various compositions and sizes. For this purpose a program specifically for image manipulation (Adobe Photoshop CS3, Adobe Systems Inc) was used.

Effect of 10% papain gel on enamel deproteinization before bonding procedure.

Objective: To test the null hypothesis that enamel deproteinization with 10% papain gel does not increase the shear bond strength of orthodontic brackets bonded with resin-modified glass ionomer cement (RMGIC).

Materials And Methods: One hundred and twenty bovine incisors were used and divided into eight groups: 1) Transbond XT according to the manufacturer's recommendations, 2) Transbond XT deproteinized with 10% papain gel, 3) RMGIC without enamel deproteinization and without etching, 4) RMGIC without enamel etching and with deproteinization with 10% papain gel, 5) RMGIC deproteinized with 10% papain gel and etched with polyacrylic acid, 6) RMGIC deproteinized with 10% papain gel and etched with phosphoric acid, 7) RMGIC deproteinized with 2.5% sodium hypochlorite, and 8) RMGIC etched with polyacrylic acid.

Facial lipodystrophy in an HIV-positive patient using an orthodontic appliance.

The aim of this article was to relate the clinical case of an HIV-positive orthodontic patient who reported that her cheeks had been hurting since treatment began. We started with the data collected in anamnesis and by contact with the patient's physician, and a diagnosis of facial lipodystrophy as a result of the use of retroviral drugs was reached. The patient was referred to a dermatologist for treatment of the facial lipodystrophy.

Orthodontic treatment in a patient with sickle cell anemia.

Sickle cell anemia is a common hereditary hematologic disease. It affects many systems and tissues in the body, including the mouth. Delayed tooth eruption, an uncommon degree of periodontitis, alterations in the cells of the tongue surface, hypomaturation and hypomineralization in enamel and dentin, pulp calcifications, hypercementosis, and bone alterations resulting in maxillary protrusion and formation of a thick trabecular pattern are some oral manifestations of the disease.

Sturge-Weber syndrome in an orthodontic patient.

The aim of this article was to describe the Sturge-Weber syndrome in a patient with orthodontic requirements. Pathologies involved in this syndrome affect facial cranial growth.

Treatment of ankylosis of the mandibular first molar with orthodontic traction immediately after surgical luxation.

The aim of this article was to report a clinical case of orthodontic treatment in a patient with Class II malocclusion and ankylosis of a maxillary first molar. Surgical luxation was performed, followed immediately by traction with an orthodontic arch with straps. The results obtained were satisfactory, and occlusal equilibrium was improved.

Asymptomatic patent nasopalatine ducts after rapid maxillary expansion.

This article describes the clinical case of a patient, a 13-year-old boy, in whom the appearance of patent nasopalatine ducts was noted after having a rapid maxillary expansion performed. To confirm this finding, inspection and radiographic examination were performed in which gutta-percha cones were used as contrast. The patient related no symptoms or discomfort due to the ducts.