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10 06, 2023

Evaluation of effects of brackets and orthodontic wires on intraoral scans: A prospective in-vivo study

2026-07-24T08:01:02+00:00

Orthod Craniofac Res. 2023 Jun 10. doi: 10.1111/ocr.12682. Online ahead of print.

ABSTRACT

OBJECTIVE: To evaluate any distortion produced by multibracket fixed orthodontic appliances on digital models obtained from intraoral scans (IOS), considering the presence of both brackets only and brackets/archwire combination.

SETTING/SAMPLE: The IOS data of the arches of 20 patients (12 females and 8 males; mean age = 15.55 ± 2.84 years) were acquired using the CS3600 intraoral scanner (Carestream Dental, Atlanta, USA), without any appliances (model A), with vestibular brackets alone (model B) and then with brackets and orthodontic archwire fitted (model C).

MATERIALS AND METHODS: Data were acquired between the months of January and October 2021 at the moment of indirect bonding phase. On each model, five intra-arch linear measurements were obtained (inter-canine, inter-premolar 1 and 2, inter-molar and arch depth), and after digital matching between model A and B (match 1) and A and C (match 2), the linear discrepancies were evaluated at 20 points (10 occlusal and 10 gingivolingual) previous identified on the reference model A. All measurements were performed using Geomagic Control X software (3D Systems, Morrisville, USA), and any dimensional variations and distortions were evaluated by the linear regression analysis and two-sample t-test (P ≤ .05).

RESULTS: The results show an almost perfect correlation between both models B and C and the reference model A, both as regards the intra-arch linear measurements and the linear discrepancies found at the 20 identified points.

CONCLUSIONS: Multibracket fixed orthodontic appliances do not produce any relevant distortions in digital models obtained via intraoral scanning. Therefore, the removal of archwire is not mandatory before IOS.

PMID:37300347 | DOI:10.1111/ocr.12682

Evaluation of effects of brackets and orthodontic wires on intraoral scans: A prospective in-vivo study2026-07-24T08:01:02+00:00
7 06, 2023

Class III treatment with mini-implants anchorage in young adult patients: short and long-term results

2026-07-24T08:01:02+00:00

Dental Press J Orthod. 2023 Jun 5;28(2):e23spe2. doi: 10.1590/2177-6709.28.2.e23spe2. eCollection 2023.

ABSTRACT

INTRODUCTION: Class III malocclusion should be intercepted and treated at early age, to prevent the necessity of future complex and expensive procedures. The orthopedic facemask therapy has the goal to achieve skeletal changes, minimizing side effects on dentition. The use of skeletal anchorage, combined with Alternate Rapid Maxillary Expansion and Constriction (Alt-RAMEC) protocol, may be effective in treating a greater number of growing Class III patients.

OBJECTIVE: To summarize the existing evidence-based literature on Class III malocclusion treatment in young adult patients, and to illustrate its application and effectiveness, by presenting an emblematic case report.

CONCLUSION: The resolution of the present case, its long-term follow up, along with the studies conducted on a larger sample, demonstrate the effectiveness of the strategic combination of orthopedic and orthodontic treatments by using an hybrid rapid palatal expander and Alt-RAMEC protocol for treating Class III malocclusions in adult patients.

PMID:37283427 | DOI:10.1590/2177-6709.28.2.e23spe2

Class III treatment with mini-implants anchorage in young adult patients: short and long-term results2026-07-24T08:01:02+00:00
1 06, 2023

Torque control with set-up and auxiliary spring in an adult severe class II case treated by lingual straight-wire appliance, premolar extractions and orthognathic surgery

2026-07-24T08:01:02+00:00

Int Orthod. 2023 May 29;21(3):100776. doi: 10.1016/j.ortho.2023.100776. Online ahead of print.

ABSTRACT

This case report describes a complex full-step class II high angle case in an adult patient treated with lingual straight-wire appliance, premolar extractions and orthognathic surgery. With the twofold aim of obtaining ideal occlusal relationship and aesthetic improvement, surgical treatment with appropriate biomechanical strategies, including extraction choice and torque control during space closure, are needed to achieve the planned results. This case report demonstrates the possibility of solving successfully severe sagittal, transverse and vertical discrepancies in an adult patient with surgical treatment by means of an invisible technique. This report also underlines the need for precise biomechanical control, including set-up overcorrections and an auxiliary spring to manage teeth inclination, in lingual orthodontics extraction cases.

PMID:37257395 | DOI:10.1016/j.ortho.2023.100776

Torque control with set-up and auxiliary spring in an adult severe class II case treated by lingual straight-wire appliance, premolar extractions and orthognathic surgery2026-07-24T08:01:02+00:00
21 01, 2023

Non-surgical occlusal plane cant resolution with lingual straight-wire appliance and miniscrews in a class II asymmetric adult patient

2026-07-24T08:01:02+00:00

Int Orthod. 2023 Jan 18;21(1):100726. doi: 10.1016/j.ortho.2023.100726. Online ahead of print.

ABSTRACT

This case report describes a complex class II case with important maxillo-mandibular asymmetry in an adult patient treated with lingual straight-wire appliance. With the twofold aim of obtaining dramatic aesthetic improvement, since the patient refused surgical option, and ideal occlusal relationship, accurate set-up planification and biomechanical strategies with TADS for occlusal plane cant correction are needed to achieve the planned results. This case report demonstrates the possibility of solving successfully class II malocclusion with significant asymmetry in adult patient without surgery by means of an aesthetic appliance; on the other hand, it underlines the necessity of miniscrews and auxiliaries in order to obtain the best results.

PMID:36669459 | DOI:10.1016/j.ortho.2023.100726

Non-surgical occlusal plane cant resolution with lingual straight-wire appliance and miniscrews in a class II asymmetric adult patient2026-07-24T08:01:02+00:00
13 01, 2023

Invisible treatment of an asymmetric adult class II malocclusion related to unilateral upper lateral incisor agenesis with a straight wire lingual appliance, mini-screw and premolar extraction: A case report

2026-07-24T08:01:02+00:00

Int Orthod. 2023 Jan 5;21(1):100721. doi: 10.1016/j.ortho.2022.100721. Online ahead of print.

ABSTRACT

This case report describes a complex full-step class II malocclusion with unilateral upper lateral incisor agenesis in an adult patient treated with lingual straight-wire appliance and premolar extraction, with the two-fold aim of obtaining ideal occlusal relationship and smile aesthetic improvement. In view of this, it underlines how an appropriate treatment strategy, including extraction choice and anchorage control during space closure, is needed to achieve the planned results with a completely invisible lingual appliance combined with aesthetic veneers.

PMID:36610255 | DOI:10.1016/j.ortho.2022.100721

Invisible treatment of an asymmetric adult class II malocclusion related to unilateral upper lateral incisor agenesis with a straight wire lingual appliance, mini-screw and premolar extraction: A case report2026-07-24T08:01:02+00:00
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