公益社団法人日本補綴歯科学会第133回学術大会 / The 14th Biennial Congress of the Asian Academy of Prosthodontics (AAP)

講演情報

一般口演(英語)

現地発表

一般口演(英)5
症例、補綴装置

2024年7月7日(日) 11:10 〜 11:40 第5会場 (幕張メッセ国際会議場 3F 303)

座長:June-Sung Shim(Yonsei University)

[EO-13] Use of digital technology in maxillofacial prosthetic treatment on cleft-lip and palate patients with severe periodontitis: A case report.

*Yuki Mouri1, Mai Murase1, Satoshi Matsui1, Noriyuki Wakabayashi1 (1. Department of Advanced Prosthodontics, Graduate School, Toky Medical and Dental University)

[Abstract]
[Introduction]
Fabricating maxillofacial prostheses by conventional methods for cleft-lip and palate patients with severe periodontitis has many risks involved in medical safety. The patients should be evaluated carefully beforehand to avoid remained impression materials, accidental ingestion, pulmonary aspiration, and unintentional tooth extractions. In recent years, CAD/CAM technology has been applied to prosthetic treatment and reported to be beneficial for maxillofacial defect patients. Written informed consent for this clinical report had been obtained from the patient.
[Case Summary and Treatment Details]
The patient was a 56-year-old male with a left-sided cleft-lip and palate and a history of diabetes. He had been treated with maxillofacial prostheses in family dentistry, however they became significantly unstable due to changes in his remaining teeth over 10 years. For the new maxillofacial prostheses, the intraoral mucosa and remaining teeth were scanned with an intraoral scanner and designed on CAD software. The CAD-designed try-in maxillofacial prostheses were used to obtain impressions of the defect and occlusal records. Regarding the mandible, three remaining teeth were extracted when the new mandible prosthesis delivery. It took four visits to fabricate the maxillofacial prostheses. He has been using them comfortably since delivery. After confirming that the maxillofacial prostheses were in good condition, various evaluations were performed.
[Progress and Discussion]
Using digital technology, it was possible to fabricate maxillofacial prostheses for a cleft-lip and palate patient with severe periodontitis in safe in only four visits. The results of several evaluations were favorable. Although the fitness of the old prostheses was significantly poor, it was necessary to preserve his remaining teeth as long as possible to support his daily life. It was also important to avoid unintentional tooth extraction because of his history of diabetes.

[References]
1) Towithelertkul C, Murase M, Tamura S, et al. Digital design of open hollow obturator framework using existing dentures: A dental technique. J Prosthet Dent. 2024;S0022-3913(23)00837-5.