Impact of botulinum toxin type A on tooth movement and bone remodeling in male Wistar rats.

Objective: We evaluated whether the use of botulinum neurotoxin type A (BTX-A) in masticatory muscles influences tooth movement and bone remodeling.

Design: Seventy-seven male Wistar rats were allocated to the groups: S - Saline (n=20); SM - Saline with movement (n=20); BT - Botulinum toxin (n=18); BTM - Botulinum toxin with movement (n=19). On day 1, 0.

Effect of treatment of transverse maxillary deficiency using rapid palatal expansion on oral health-related quality of life in children: complementary results for a controlled clinical trial.

Objective: To evaluate the effect of rapid palatal expansion (RPE) using Haas-type expanders on children's oral health-related quality of life (OHRQOL) and compare said effect with that previously reported for the use of Hyrax-type expanders.

Materials And Methods: Forty participants aged 8-10 years with transverse maxillary deficiency were treated using Haas appliances. OHRQOL was measured using the CPQ before RPE, during RPE (T), at the end of RPE (T), and 1 month after appliance removal (T).

Accessories in clear aligner therapy: Laypeople's expectations for comfort and satisfaction.

Background: This study explored the layperson's perception of comfort, satisfaction, and willingness to use various accessories in clear aligner therapy.

Methods: A total of 267 people analyzed standardized intraoral photographs of a female model in orthodontic treatment using: 1) only clear aligner (CA), the control group; 2) clear aligner+attachments (AT); 3) clear aligners+Cl II elastics (EL); 4) clear aligner+hybrid treatment with esthetic braces (HEB); 5) Clear aligner+hybrid treatment with metallic braces (HMB); 6) clear aligner+mini-implants (MI); 7) clear aligner+mini-implants and elastics for intrusion (MIE). In addition, a social media questionnaire was distributed to assess the willingness to undergo orthodontic treatment with various accessories.

Association between sex of the individual with untreated cleft lip and social judgement made by lay persons: A cross-sectional study.

Objective: To assess whether there is an association between an individual's sex and social judgements made by lay persons regarding untreated cleft lip.

Materials And Methods: Lay individuals over 18 years old were recruited through an application to respond online to two questionnaires: a sociodemographic survey and the Brazilian Version of Lay Persons' Social Judgements about Cleft-lip Scale (B-LSojCleft-S). B-LSojCleft-S comprises 14 items evaluating social judgements made by laypersons concerning different types of untreated cleft lips in teenagers.

Efficiency of mixed and rigid occlusal stabilization splints: Randomized clinical trial.

Occlusal stabilization splints are the most common treatment for controlling the deleterious effects of sleep bruxism. This study aimed to evaluate the effectiveness of a low-cost, mixed occlusal splint (MOS) compared to that of a rigid splint. A randomized clinical trial was performed on 43 adults of both sexes with possible sleep bruxism and satisfactory dental conditions.

Evaluation of the impact of orthodontists' smile with malocclusions on social media and professional credibility.

Objectives: This study assessed laypeople's perceptions of orthodontist credibility based on malocclusions and whether these views affect their choice to seek treatment. Eye-tracking technology and questionnaires were utilized.

Materials And Methods: Ninety-five lay raters, through eye tracking and a questionnaire, assessed 12 images of orthodontists with malocclusions.

Assessing the reliability of ChatGPT: a content analysis of self-generated and self-answered questions on clear aligners, TADs and digital imaging.

Introduction: Artificial Intelligence (AI) is a tool that is already part of our reality, and this is an opportunity to understand how it can be useful in interacting with patients and providing valuable information about orthodontics.

Objective: This study evaluated the accuracy of ChatGPT in providing accurate and quality information to answer questions on Clear aligners, Temporary anchorage devices and Digital imaging in orthodontics.

Methods: forty-five questions and answers were generated by the ChatGPT 4.

The visual perception of aligned and crowded maxillary lateral incisors when smiling via eye tracking.

Background: This study aimed to investigate whether the alignment of the teeth while smiling alters the visual perception by laypeople using eye tracking.

Methods: Facial images (two males and two females) were digitally edited to show a smile pattern with aligned teeth and one with crowded teeth. Sixty laypeople were selected to observe the images.

The Esthetics of the Nasolabial Fold and Age in the Elderly Via Eye-Tracking.

Background: Facial aging is associated with the loss of soft tissue fullness. Perioral signs of facial aging can add years to individuals' appearances and even affect their facial expressions in smiling and nonsmiling images.

Aims: To evaluate the influence of the nasolabial fold on the visual perception of esthetics and age in the elderly, eye-tracking and a visual analog scale were used.

Assessment of awake bruxism and oral mucosa indentation in adolescents.

Background: Oral mucosa indentations can be signs of awake bruxism (AB) in adults, but this association has not yet been verified in adolescents.

Objectives: To evaluate the frequency of AB in adolescents and determine whether there is an association between AB and oral mucosa indentation.

Methods: This study enrolled 66 high school students, mean age of 16.

The influence of fluoxetine on orthodontic tooth movement in rats.

This study aimed to evaluate the effects of chronic use of fluoxetine on the amount of orthodontic tooth movement and tissue changes in rats. A total of 192 Wistar rats were divided into 4 groups: S, 0.9% saline solution; F, 20 mg/kg of fluoxetine; SM, 0.

Treatment of Class II malocclusion with anterior open bite and posterior crossbite with the aid of mini-implants in a patient with Down syndrome: Clinical case report.

Objective: We report the orthodontic treatment of a class II malocclusion with anterior open bite and posterior crossbite in a patient with Down syndrome (DS) treated with mini-implants.

Methods: Treatment began with rapid maxillary expansion with a Haas appliance, followed by dental alignment and leveling with a fixed appliance and the correction of class II dental relationships with the use of orthodontic mini-implants associated with a sliding jig.

Results: The results obtained at the end of the treatment were satisfactory, with improvements in occlusion, including bite closure; maxillary expansion; and the correction of dental relationships.