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Text
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<a href="http://doi.org/10.1016/j.ajodo.2020.02.007" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.ajodo.2020.02.007</a>
Pages
452-458
Issue
3
Volume
158
ISSN
1097-6752 0889-5406
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Hospital List
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Title
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A novel method for fabricating nasoalveolar molding appliances for infants with cleft lip and palate using 3-dimensional workflow and clear aligners.
Publisher
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American Journal of Orthodontics and Dentofacial Orthopedics
Date
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2020
2020-09
Subject
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Humans; Infant; India; Preoperative Care; Cleft Lip; Cleft Palate; Orthodontic Appliances Removable; Nose; Workflow
Creator
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Bous RM; Kochenour N; Valiathan M
Description
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INTRODUCTION: Nasoalveolar molding (NAM) was introduced over 20 years ago as adjunctive therapy for the correction of cleft lip and palate. In the current study, we propose a new approach using a digital workflow and 3-dimensional printing to fabricate clear aligner NAM devices. METHODS: A polyvinyl siloxane (PVS) impression of an infant with a unilateral complete cleft lip and palate (UCLP) is acquired and poured, and the stone model is scanned with an intraoral scanner. The stereolithography file is digitized, and the alveolar segments are digitally segmented and moved to the desired final position. The total distance moved is divided into a sequence of 1-1.5 mm increments, creating a series of digital models. The models are 3-dimensionally printed along with button templates to allow free form positioning of the button on each model. A Vacuform machine (Taglus, Mumbai, India) was used to fabricate a 0.040-in aligner for each stage. RESULTS: We present 1 case that was treated successfully with this approach. Appointments for the NAM adjustments were primarily to monitor progress and counseling with less time spent adjusting the appliance. The appointment length was reduced by over 30 minutes. Benefits of the aligner are improved fit, more precise increments of activation, reduced chairside time, and potentially minimized number of visits. CONCLUSIONS: NAM custom aligners may provide similar benefits to the traditional approach while reducing the burden of care by reducing the number of visits and appointment duration. Further studies with a sample and longitudinal observations are needed to investigate the benefits of the proposed digital approach.
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<a href="http://doi.org/10.1016/j.ajodo.2020.02.007" target="_blank" rel="noreferrer noopener">10.1016/j.ajodo.2020.02.007</a>
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journalArticle
2020
American Journal of Orthodontics and Dentofacial Orthopedics
Bous RM
Cleft Lip
Cleft Palate
Hospital List
Humans
India
Infant
journalArticle
Kochenour N
nose
Orthodontic Appliances Removable
Preoperative Care
Valiathan M
Workflow