Recording jaw relation of a pediatric patient with ectodermal dysplasia and complete anodontia using a digital mini arch tracer: A case report

Children with ectodermal dysplasia and complete anodontia experience difficulties in oral rehabilitation because of the small arch size. A case of a 7‐year‐old boy, whose arch size (length and width) was 30‐40% smaller than that of a male adult and who presented with difficulties in jaw relation rec...

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Bibliographic Details
Published in:Journal of prosthodontics 2022-12, Vol.31 (9), p.738-743
Main Authors: Sun, Manlin, Tan, Xin, Zhang, Na, Lou, Yuxin, Wu, Qin, Yu, Haiyang
Format: Article
Language:English
Subjects:
Anodontia - rehabilitation
Case reports
Child
Complete anodontia
Computed tomography
Dental Impression Technique
Denture, Complete
Dentures
Dysplasia
ectodermal dysplasia
Ectodermal Dysplasia - complications
Humans
Jaw
jaw relation recording
Male
mini arch tracer
Pediatrics
Rehabilitation
three‐dimensional printing
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Summary:Children with ectodermal dysplasia and complete anodontia experience difficulties in oral rehabilitation because of the small arch size. A case of a 7‐year‐old boy, whose arch size (length and width) was 30‐40% smaller than that of a male adult and who presented with difficulties in jaw relation recording using commercially available devices is described. A digital workflow involving a mini arch tracer was introduced. Primary impressions were made using three‐dimensionally (3D) printed mini trays produced based on the patient's computed tomography images, and digital primary casts were obtained based on the scanned and reversed primary impressions. The final custom impression trays with mini tracing plates were designed based on the primary casts. In addition, the hand shank, retention plate, and retainers were placed on the designed custom trays and 3D‐printed to produce an individual arch tracer system. In addition, two height‐checking buckles were designed to help adjust the height of a tracing screw. Finally, the jaw relation of the patient was recorded and transferred, and a set of complete dentures were delivered, satisfying both the patient and his family.
ISSN:1059-941X
1532-849X
DOI:10.1111/jopr.13587