Comparison of protein and energy supplementation to mineral supplementation on feeding behavior of grazing cattle during the rainy to the dry season transition.

The aim of this study was to evaluate the effects of protein-energy or mineral supplementation on the ingestive behavior of dairy steers on pasture in the post-weaning phase during the rainy to dry season transition. Twenty-two ½ Holstein-Zebu dairy steers with an average initial body weight of 234 ± 16 kg were distributed into a completely randomized design into two groups: protein-energy supplementation and mineral supplementation offered ad libitum. The steers receiving protein-energy supplementation showed higher (P < 0.

Stresses in the midpalatal suture in the maxillary protraction therapy: a 3D finite element analysis.

Background: The aim of the present work was to evaluate the stress magnitudes and directions along the midpalatal suture in the maxillary protraction therapy.

Methods: The geometry of the maxilla and teeth were digitally reconstructed based on computer tomography images obtained from the skull of a girl in a mixed dentition stage with skeletal and dental class III malocclusion. An appliance commonly used for rapid palatal expansion (RPE) was also digitally modeled for anchorage of the protraction force and meshed for finite element analysis.

Effect of organic solvents and ultrasound on the removal of orthodontic brackets.

Objective: To evaluate the effect of organic gel solvents (70% acetone and 90% ethanol) and ultrasound in the removal of metallic brackets.

Materials And Methods: Metallic brackets were bonded with light-cured orthodontic composite (Transbond XT) in 120 human bicuspids and divided into 6 groups for the enamel etch-and-rinse adhesive system (XT) and 6 groups to self-etching system (SEPT) according to pretreatment to removal test: control, 70% acetone, 90% ethanol, ultrasound, 70% acetone+ultrasound, and 90% ethanol+ultrasound. The brackets were subjected to removal by shear testing and Adhesive Remnant Index (ARI) evaluation.

Combined Periodontal, Orthodontic, and Prosthetic Treatment in an Adult Patient.

A 41-year-old man had a significant loss of bone and supporting tissues with pathologic migration of several teeth and several missing teeth. He was treated with an interdisciplinary therapeutic protocol that included nonsurgical periodontal therapy based on strict control of supragingival plaque, subgingival periodontal therapy, orthodontic and endodontic treatment, and replacement of restorations. The orthodontic therapy was performed in a severely reduced bone support and the presence of pathological tooth migration after periodontal disease control.

Impact of malocclusion on affective/romantic relationships among young adults.

Objective: To evaluate the extent to which different types of malocclusion influence the development of affective/romantic relationships among young adults of both sexes.

Materials And Methods: A cross-sectional study was conducted with 360 men and women ranging in age from 18 years to 25 years. Criteria for exclusion from the sample were the following: participants could not be married, visually impaired, or students of a higher education course in the area of health.

Patients' perception of installation, use and results of orthodontic mini-implants.

The purpose of this study was to evaluate patient acceptance and perception of pain with regard to orthodontic mini-implants. The study was conducted on 58 individuals undergoing orthodontic treatment, who had orthodontic mini-implants placed as anchorage devices. Data were collected using a questionnaire containing 6 questions evaluating perception of pain during mini-implant placement and during use, difficulty with cleaning, unaesthetic appearance, difficulty with eating and benefits observed.

Force decay of latex and non-latex intermaxillary elastics: a clinical study.

Objective: To evaluate force decay between intermaxillary orthodontic elastics with and without latex in the oral medium at different time intervals.

Materials And Methods: Intermaxillary orthodontic elastics with and without latex [1/8″ (3.2mm), 1/4″ (6.

Assessment of the effectiveness of mouthwashes in reducing cariogenic biofilm in orthodontic patients: a systematic review.

Objectives: The use of fixed orthodontic appliances makes it difficult to clean the teeth and accessories associated with it. For this reason, orthodontic patients have used oral antiseptics as coadjuvent means to reduce cariogenic plaque. The aim of this systematic review was to evaluate the effectiveness of oral antiseptics on the reduction of cariogenic plaque on orthodontic patients.

Do dental esthetics have any influence on finding a job?

Introduction: Our objective was to determine whether dental esthetics have any influence on finding a new job.

Methods: Ten patients with orthodontic treatment needs for various types of malocclusions were selected. Smiling facial photographs of all patients were obtained and digitally altered (orthodontic correction of teeth).

Physical and chemical properties of orthodontic brackets after 12 and 24 months: in situ study.

Objective: The aim of this article was to assess how intraoral biodegradation influenced the surface characteristics and friction levels of metallic brackets used during 12 and 24 months of orthodontic treatment and also to compare the static friction generated in these brackets with four different methods of the ligation of orthodontic wires.

Material And Methods: Seventy premolar brackets as received from the manufacturer and 224 brackets that were used in previous orthodontic treatments were evaluated in this experiment. The surface morphology and the composition of the deposits found in the brackets were evaluated with rugosimetry, scanning electron microscopy, and energy dispersive X-ray spectroscopy.

Perception of laypersons and dental professionals and students as regards the aesthetic impact of gingival plastic surgery.

Objective: To evaluate the degree of perception of laypersons, professionals, and dental students, regarding the aesthetic appearance of the smile in cases of gingival plastic surgery of the maxilla for correction of a gingival smile, by examining alterations in photographs.

Materials/methods: Alterations were made to an extraoral front-view-photograph of a gingival smile in normal occlusion, by gingival recontouring of the maxilla, simulating a gingival plastic surgery procedure to diminish gingival exposure. For this purpose, specific image-manipulation program (Adobe-Photoshop-Software-CS3) was used.

Tooth displacement in shortened dental arches: a three-dimensional finite element study.

Statement Of Problem: Some patients may opt for a prosthetic rehabilitation without replacing all missing teeth, finishing treatment with a reduced dental arch. This choice may be due to biologic reasons or financial restrictions. It is unclear if a reduced dental arch functions as well as a complete dental arch.

Effect of different concentrations of papain gel on orthodontic bracket bonding.

Background: The objective of this study was to verify the hypothesis that enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10% increases shear bond strength as concentration increases.

Methods: A total of 180 bovine mandibular permanent incisors were used, divided into six groups (n=30), and denominated as follows: group 1 is the control group (CG) in which brackets are bonded with resin-modified glass ionomer cement (RMGIC) according to the manufacturer's recommendations and groups 2, 3, 4, 5, and 6 have brackets bonded with RMGIC after enamel deproteinization with papain gel at concentrations of 2%, 4%, 6%, 8%, and 10%, respectively. After bonding, teeth were immersed in artificial saliva and kept at a temperature of 37°C for 24 h.

Chlorhexidine gel associated with papain in pulp tissue dissolution.

Objectives: This study aimed to evaluate the capacity of 2% chlorhexidine gel associated with 8% papain gel in comparison with 5.25% sodium hypochlorite in bovine pulp tissue dissolution.

Materials And Methods: Ninety bovine pulps of standardized sizes were used and fragmented into 5-mm sizes.

Photos vs silhouettes for evaluation of profile esthetics between white and black evaluators.

Objective: To determine whether photos or silhouettes are adequate methods for evaluating the esthetic profiles of black subjects and whether black and white evaluators have different preferences for esthetic profiles.

Materials And Methods: One photographic record of the profile of a black female patient with accentuated dental bimaxillary dentoalveolar protrusion was randomly selected. The image of the patient's profile was altered to produce a series of seven photos and seven silhouettes (a total of 14 images) with different lip positions but uniform distances in relation to the esthetic plane created by Ricketts (line E).

Cross sectional: perception of children from public and private schools regarding the esthetic impact of different types of face masks.

Purpose: The purpose was to evaluate the esthetic perception among children from public and private schools regarding the use of different types of face masks.

Methods: Six different types of orthopedic face masks made from images of the same patient were evaluated. Initially, the images were standardized with the help of Adobe Photoshop software.

Esthetic perception of black spaces between maxillary central incisors by different age groups.

Introduction: The aim of this research was to evaluate esthetic perceptions of the smile, especially regarding black spaces between the maxillary central incisors, by laypersons in 3 age groups.

Methods: Photographs were digitally manipulated to simulate black spaces in the region of the maxillary central incisor crenations. The images were printed on photographic paper and attached to a questionnaire that was given to 150 laypersons in 3 age groups: 15 to 19, 35 to 44, and 65 to74 years.

Modified thermoplastic plate: a new proposal for correction of exaggerated overbite in mixed dentition.

Exaggerated overbite can be corrected by several treatment modalities. As the primary objective is to correct the problem by addressing its root cause, treatment options are closely related to etiology. Therefore, the main treatment strategies are: the extrusion of posterior teeth, intrusion of teeth (maxillary/mandibular) or the combination of these.

Treatment of class II malocclusion with open bite and absence of central maxillary incisor lost by trauma aided by use of orthodontic mini-implants.

The aim of this article is to report the clinical case of non-surgical treatment of a Class II malocclusion with anterior open bite, associated with absence of a maxillary central incisor avulsed due to trauma. Treatment proceeded with the use of orthodontic mini-implants as an anchorage device for intrusion of the maxillary molars and for mesial movement of the lateral incisor to replace the central incisor. Treatment resulted in good occlusion, with anterior and lateral guides, enhancement of the facial profile, and good dental esthetic appearance without the need for prosthetic treatment.

Does chlorhexidine in different formulations interfere with the force of orthodontic elastics?

Objective: To evaluate the effects of different concentrations of chlorhexidine on the decline in force of orthodontic elastics.

Materials And Methods: In a laboratory study, five groups of samples were tested, with one control group represented by distilled water (group 1) and four experimental groups: 0.12% manipulated chlorhexidine (group 2), 0.