Computer‐Aided Design/Computer‐Aided Manufacturing Technology in Customized Orthodontic Appliances

Grauer, Dan; Wiechmann, Dirk; Heymann, Gavin C.; Swift, Edward J.

doi:10.1111/j.1708-8240.2011.00500.x

Cited by 33 publications

(20 citation statements)

References 17 publications

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“…The bracket base was a conventional mesh base that was modified with a customized slot to generate the prescribed bracket. The relationship between tooth and bracket was recorded to generate the 3D printed transfer jig that enabled transfer of the actual bracket to the patient mouth [ 5 ].…”

Section: Methodsmentioning

confidence: 99%

“…In orthodontics, this advanced technology facilitates both diagnosis and treatment, especially in complex cases, such as patients with multiple missing teeth or those with dentofacial deformities [ 4 ]. By using a CAD/CAM-based system, clinicians can generate different three-dimensional (3D) digital models, depending on treatment plans, and then choose the best treatment option [ 5 , 6 ]. Furthermore, 3D virtual models are useful for communication among specialist clinicians, as well as with patients, who must approve the final treatment approach.…”

Section: Introductionmentioning

confidence: 99%

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Debonding force and shear bond strength of an array of CAD/CAM-based customized orthodontic brackets, placed by indirect bonding- An In Vitro study

Sha

Choi

et al. 2018

PLoS ONE

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Based on three-dimensional scanning and computer-aided design and computer-aided manufacturing (CAD/CAM) techniques, customized bracket systems are increasingly used. However, data remain limited regarding customized bracket design, characteristics, and stability. This study was undertaken to evaluate the design, bond strength, and residual adhesives of four different CAD/CAM customized brackets that were attached to human tooth specimens by indirect bonding. Thirty extracted human upper premolars were divided into five groups: Group 1, preadjusted self-ligating labial metal bracket; Group 2, lingual self-ligating metal injection molding customized bracket; Group 3, gold-casted lingual customized bracket; Group 4, labial self-ligating milled customized bracket; Group 5, labial customized resin base bracket. Except in Group 1, premolar specimens were scanned via model scanner, and the images were sent to each manufacturing company to fabricate customized brackets and transfer trays/jigs. Debonding force (DF; N) was measured by Instron universal testing machine and shear bond strength (SBS; MPa) was calculated via dividing DF by bonding area. Adhesive remnants were analyzed via stereo microscopic images. Group 2 (196.90±82.75 N) exhibited significantly higher DF than Group 1 (62.77±12.65 N); other groups exhibited similar DFs, compared with Group 1. No customized bracket groups exhibited significant differences in SBS, relative to Group 1 (6.73±1.36 MPa). However, SBS in Group 5 (11.46±7.22 MPa) was significantly higher than in Group 3 (3.58±2.14 MPa). Group 3 had significantly lower ARI scores than other groups (P<0.05). Customized brackets exhibited large deviations in DF and SBS; all customized bracket systems exhibited DF that was equivalent or superior to that of preadjusted brackets, even when placed by indirect bonding.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Debonding force and shear bond strength of an array of CAD/CAM-based customized orthodontic brackets, placed by indirect bonding- An In Vitro study

Sha

Choi

et al. 2018

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Recently, an increasing number of companies have used design software and technological advances in orthodontics to introduce CAD and computer-aided manufactured (CAM) customized appliances 12 combined with custom-made buccal bracket systems using indirect bonding transfer jigs. 13 After approval of the final OT result on a virtual setup through a software planning system, the slots of the brackets can be individualized and the custom wires are manufactured by a wire-bending robot.…”

Section: Introductionmentioning

confidence: 99%

Standard vs computer-aided design/computer-aided manufacturing customized self-ligating systems using indirect bonding with both:

Jackers¹,

Maes

Albert

et al. 2020

The Angle Orthodontist

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Objective To compare treatment duration and quality between standard vs computer-aided design/computer-aided manufacturing (CAD/CAM) customized self-ligating systems using indirect bonding with both. Materials and Methods This comparative trial included 24 patients: 12 treated with a CAD/CAM custom indirect bonding self-ligating system (CAD/CAM) and 12 others treated with an indirect bonding self-ligating standard system (I-STD). For each group, overall orthodontic treatment (OT) time was calculated and included the time needed to place each arch as well as the duration of the alignment and fine-tuning phases. The quality of the final result was analyzed using the American Board of Orthodontics Cast-Radiograph Evaluation. Patient-reported outcome measures (PROMs) were also evaluated. Results Patient characteristics were similar between the 2 groups except for age, which was slightly lower in the I-SDT group. Overall OT time was increased by 26% in the I-STD group compared with the CAD/CAM group (497 ± 40 days vs 393 ± 55 days, P = 0.0002) due to a shorter fine-tuning phase in the latter group (P<0.01). No difference was found between the groups for alignment phase. Quality of the final result was similar (I-STD, 25.7 ± 6.1; CAD/CAM, 21.6 ± 6.3) among the groups. Finally, no difference was found in the PROMs variables. Conclusions Despite a 26% longer OT time when compared with the CAD/CAM customized bracket system, the indirect bonding self-ligating bracket system demonstrated the same quality of treatment. PROMs demonstrated a high level of acceptance and satisfaction for both techniques.

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“…The main advantage mentioned in most of the studies is the cost effectiveness of AM due to the nature of the technique and its minimal waste [12, 13]. A study [14] also commented that the precision of DMLS is revolutionary with the possibility of creating complicated shapes and geometries with thin sections in a range from 0.02 to 0.03 mm such as required for orthodontics [17, 18], removable partial dentures, maxillofacial prosthesis [19, 20], and intraoral sleep apnoea devices [21]. In addition, many other studies suggested this technique showed great promise as an alternative to the conventional casting technique [7, 12, 22, 23].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Overall Fit of Milled and Laser-Sintered CAD/CAM Crown Copings

Zuskova

Mortadi

Williams

et al. 2019

International Journal of Dentistry

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Background and Aims. The aim of this study was to investigate the effect of computer-aided design/computer-aided manufacturing (CAD/CAM) procedures on the overall fit of metal copings. Materials and Methods. A standardized die was made in die stone of an upper right molar prepared for a full crown. The die was digitalized by an Identica Blue Light Scanner, and the coping substructure was designed using CAD software. Ten milled specimens and ten laser-sintered specimens were manufactured by Renishaw plc based on the generated file by the software. All twenty copings were digitized by the Identica scanner, and the data were superimposed with the original premanufacturing data file of the prepared full crown. Using the Geometric Modelling Library (GML) package, the fit discrepancies were displayed as colour maps showing discrepancies in three dimensions. Each map was made up of thousands of data points carrying numerical error values allowing detailed analyses. Results. The milled group displayed a mean of fit discrepancies of 42.20 μm (SD 3.04 μm), while the laser-sintered group showed a mean of 42.24 μm fit discrepancies (SD 2.94 μm). Thus, a small difference of 0.04 μm between the two groups was detected. Conclusions. The evaluated manufacturing systems can be used in dental practice as a small and insignificant discrepancy of fit between the two manufacturing methods was detected.

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Computer‐Aided Design/Computer‐Aided Manufacturing Technology in Customized Orthodontic Appliances

Cited by 33 publications

References 17 publications

Debonding force and shear bond strength of an array of CAD/CAM-based customized orthodontic brackets, placed by indirect bonding- An In Vitro study

Debonding force and shear bond strength of an array of CAD/CAM-based customized orthodontic brackets, placed by indirect bonding- An In Vitro study

Standard vs computer-aided design/computer-aided manufacturing customized self-ligating systems using indirect bonding with both:

Comparison of Overall Fit of Milled and Laser-Sintered CAD/CAM Crown Copings

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