A 20-year-old woman presented with an unesthetic appearance and severe wear of the anterior teeth. Definitive expected treatment was designed by multidisciplinary combination therapy. Meanwhile, gene sequencing was used diagnostically, and digital smile design (DSD) was used to design the esthetics of the anterior teeth. The 3-month follow-up showed an acceptable outcome. The whole-exon sequencing and direct sequencing of polymerized chain reaction products of dentin sialophosphoprotein were performed, but further sequencing was needed in the repeat region of dentin sialophosphoprotein exon 5 (the data were not shown). DSD assisted and improved the esthetic design of the definitive restoration, communication with the patient, and predictability of the treatment. This treatment demonstrates that the diagnosis and differential diagnosis of patients with dentinogenesis imperfecta (DGI)-II are essential and effective for implementing the definitive treatment plan. Gene screening can be used as an auxiliary method of diagnosing DGI-II. In terms of esthetic design, DSD played an important role in ensuring a satisfactory result. Moreover, a multidisciplinary treatment protocol focusing on prosthodontics, which is different from the traditional treatment of DGI-II and consists solely of prosthodontic rehabilitation, proved highly effective in the esthetic restoration of a patient with DGI-II.
Copyright © 2018 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.