Evaluation of maxillary canine and molar movement during the first phase of extraction space closure: a multilevel analysis.

Objective: This study was designed to analyze and compare the cusp and apex movements of the maxillary canines and first molars during canine retraction in the first step of extraction space closure, and to evaluate if these teeth follow a curvilinear (acceleration and/or deceleration) movement rate.

Material And Methods: Twenty-five patients (23.3 ± 5.

Speech performance in adult patients undergoing Invisalign treatment.

Objectives: To assess speech performance of adult patients undergoing orthodontic treatment with Invisalign.

Materials And Methods: Twenty-four adult patients with Invisalign (Invisalign group: 6 men, 18 women; average age; 34.88 years) and 20 adult patients with fixed labial appliances (fixed group: 5 men, 15 women; average age; 38.

Class II malocclusion correction with Invisalign: Is it possible?

Introduction: This research aimed to determine whether Class II malocclusion can be treated with clear aligners after completing treatment with the initial set of aligners.

Methods: A sample of 80 adult patients were divided into Group 1 with Class I molar malocclusions (n = 40 [11 men and 29 women]; 38.70 ± 15.

Esthetic perception of clear aligner therapy attachments using eye-tracking technology.

Introduction: The purpose of this research was to assess and compare esthetic perceptions of clear aligner therapy with attachments and esthetic brackets by measuring differences in eye fixations using eye-tracking technology.

Methods: The sample involved 250 adult subjects. The subjects gave verbal consent, then viewed photographs showing 4 variations of orthodontic appliances: clear aligner control with minimal attachments, clear aligner with anterior and posterior attachments, esthetic brackets, and clear aligner with posterior attachments.

Which one closes extraction spaces faster: en masse retraction or two-step retraction? .

Objectives: To compare the time to close extraction spaces between en masse (ER) and two-step retraction (TSR).

Materials And Methods: Forty-eight patients with bimaxillary protrusion underwent treatment with extraction of four first premolars. All patients were randomly allocated to one of two groups: ER (n = 24) or TSR (n = 24).

Comparison of anterior retraction and anchorage control between en masse retraction and two-step retraction: A randomized prospective clinical trial.

Objectives: The purpose of this two-arm parallel trial was to compare en masse (ER) and two-step retraction (TSR) during space closure.

Materials And Methods: Forty-eight adult patients with bimaxillary protrusion who were planned for treatment with extraction of four first premolars were enrolled. All patients were randomly allocated in a 1:1 ratio to either the ER (n = 24) group or the TSR (n = 24) group.