EVALUATION OF ACCURACY OF 3DPRINTED WINDOWED BRACKET- POSITIONING GUIDE COMPARED TO THERMOFORMED TRANSFER TRAY FOR ORTHODONTIC INDIRECT BONDING - A RANDOMIZED CLINICAL TRIAL

ABSTRACT Objectives To compare the transfer accuracy of two different three-dimensional printed trays (Dreve FotoDent ITB [Dreve Dentamid, Unna, Germany] and NextDent Ortho ITB [NextDent, Soesterberg, the Netherlands]) to polyvinyl siloxane (PVS) trays for indirect bonding. Materials and Methods A total of 10 dental models were constructed for each investigated material. Virtual bracket placement was performed on a scanned dental model using OnyxCeph (OnyxCeph 3D Lab, Chemnitz, Germany). Three-dimensional printed transfer trays using a digital light processing system three-dimensional printer and silicone transfer trays were produced. Bracket positions were scanned after the indirect bonding procedure. Linear and angular transfer errors were measured. Significant differences between mean transfer errors and frequency of clinically acceptable errors (<0.25 mm/1°) were analyzed using the Kruskal–Wallis and χ2 tests, respectively. Results All trays showed comparable accuracy of bracket placement. NextDent exhibited a significantly higher frequency of rotational error within the limit of 1° (P = .01) compared with the PVS tray. Although PVS showed significant differences between the tooth groups in all linear dimensions, Dreve exhibited a significant difference in the buccolingual direction only. All groups showed a similar distribution of directional bias. Conclusions Three-dimensional printed trays achieved comparable results with the PVS trays in terms of bracket positioning accuracy. NextDent appears to be inferior compared with PVS regarding the frequency of clinically acceptable errors, whereas Dreve was found to be equal. The influence of tooth groups on the accuracy of bracket positioning may be reduced by using an appropriate three-dimensional printed transfer tray (Dreve).

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Comparative assessment of treatment efficacy and adverse effects during nonextraction orthodontic treatment of Class I malocclusion patients with direct and indirect bonding: A parallel randomized clinical trial

American Journal of Orthodontics and Dentofacial Orthopedics ◽

10.1016/j.ajodo.2017.12.009 ◽

2018 ◽

Vol 154 (1) ◽

pp. 26-34.e1 ◽

Cited By ~ 7

Author(s):

Kübra Yıldırım ◽

Banu Saglam-Aydinatay

Keyword(s):

Clinical Trial ◽

Adverse Effects ◽

Randomized Clinical Trial ◽

Treatment Efficacy ◽

Orthodontic Treatment ◽

Comparative Assessment ◽

Class I ◽

Indirect Bonding

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Digital Workflow for Indirect Bonding with 2D Lingual Brackets: A Case Report and Procedure Description

Case Reports in Dentistry ◽

10.1155/2019/6936049 ◽

2019 ◽

Vol 2019 ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

Federico Rosti ◽

Maria Francesca Sfondrini ◽

Davide Bressani ◽

Marina Consuelo Vitale ◽

Paola Gandini ◽

...

Keyword(s):

Orthodontic Treatment ◽

Present Report ◽

Steady Increase ◽

Indirect Bonding ◽

Cad Cam ◽

Dental Surface ◽

Lingual Brackets ◽

Transfer Tray ◽

True Definition ◽

Bracket Positioning

Objective. During orthodontic therapy, accuracy in bonding procedures makes it easier to correct tooth alignment by decreasing the need for midcourse corrections by changing bracket positions. Indirect bonding allows the transfer of the appliance components from model casts to patient’s teeth potentially meaning shorter appointments for bracket bonding and rebonding and best comfort during chairside practice. At the same time, there has been a steady increase in requests for invisible lingual orthodontic treatment.Clinical Considerations. Accordingly, the aim of the present report is to illustrate the workflow to realize a complete digital indirect bonding for lingual brackets (2D, Forestadent). The procedure starts with intraoral digital scans, digital 3D model, and virtual bracket positioning, ending with the realization of a CAD-CAM prototyped transfer tray. A 3D intraoral scanner (True Definition, 3M) is used to create digital scans and digital models. A virtual bracket positioning is performed using software (NemoCast, Dentaurum), and a prototyped transfer tray is created by a CAD-CAM device. 2D lingual brackets were positioned inside the tray, so the appliance was bonded to the dental surface using light curing adhesive resin.Conclusions. During orthodontic treatment, CAD/CAM technology could help clinicians. Computer-constructed transfer trays can reduce clinician error and improve the everyday workflow in the office.

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Indirect orthodontic bonding - a modified technique for improved efficiency and precision

Dental Press Journal of Orthodontics ◽

10.1590/2176-9451.20.3.109-117.sar ◽

2015 ◽

Vol 20 (3) ◽

pp. 109-117 ◽

Cited By ~ 6

Author(s):

Lincoln Issamu Nojima ◽

Adriele Silveira Araújo ◽

Matheus Alves Júnior

Keyword(s):

Clinical Practice ◽

Modified Technique ◽

Fixed Appliance ◽

Clinical Phase ◽

Indirect Bonding ◽

Orthodontic Bonding ◽

Transfer Tray ◽

Bracket Positioning ◽

Bonding Technique

INTRODUCTION: The indirect bonding technique optimizes fixed appliance installation at the orthodontic office, ensuring precise bracket positioning, among other advantages. In this laboratory clinical phase, material and methods employed in creating the transfer tray are decisive to accuracy. OBJECTIVE: This article describes a simple, efficient and reproducible indirect bonding technique that allows the procedure to be carried out successfully. Variables influencing the orthodontic bonding are analyzed and discussed in order to aid professionals wishing to adopt the indirect bonding technique routinely in their clinical practice.

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