DOI QR코드

DOI QR Code

비정형적인 악궁을 가진 완전 무치악 환자에서 기성 트레이와 구강 스캐너를 이용한 인상 채득 방법의 비교 연구: 증례 보고

A comparative study of impression methods using stock tray and intraoral scanner in a completely edentulous patient with an atypical arch shape: a case report

  • 박재훈 (전북대학교 치과대학 치과보철학교실) ;
  • 김지현 (전북대학교 치과대학 치과보철학교실) ;
  • 서재민 (전북대학교 치과대학 치과보철학교실) ;
  • 이정진 (전북대학교 치과대학 치과보철학교실) ;
  • 박연희 (전북대학교 치과대학 치과보철학교실)
  • Jae-Hoon Park (Department of Prosthodontics, Institute of Oral Bio-Science, School of Dentistry, Jeonbuk National University and Research Institute of Clinical Medicine of Jeonbuk National University) ;
  • Ji-Hyun Kim (Department of Prosthodontics, Institute of Oral Bio-Science, School of Dentistry, Jeonbuk National University and Research Institute of Clinical Medicine of Jeonbuk National University) ;
  • Jae-Min Seo (Department of Prosthodontics, Institute of Oral Bio-Science, School of Dentistry, Jeonbuk National University and Research Institute of Clinical Medicine of Jeonbuk National University) ;
  • Jung-Jin Lee (Department of Prosthodontics, Institute of Oral Bio-Science, School of Dentistry, Jeonbuk National University and Research Institute of Clinical Medicine of Jeonbuk National University) ;
  • Yeon-Hee Park (Department of Prosthodontics, Institute of Oral Bio-Science, School of Dentistry, Jeonbuk National University and Research Institute of Clinical Medicine of Jeonbuk National University)
  • 투고 : 2023.07.26
  • 심사 : 2023.08.23
  • 발행 : 2023.10.31

초록

총의치 제작 과정 중 정확한 최종인상을 얻기 위해서는 정확한 예비인상 채득이 선행되어야 한다. 본 증례에서는 비정형적인 악궁 형태를 가진 환자에서 기성 트레이 및 구강 스캐너로 채득하여 제작한 예비모형과 개인트레이를 비교하였다. 58세 남자 환자로 상, 하악 총의치 제작을 위해 본원 구강악안면외과에서 의뢰되었다. 상하악궁 모두 좁고 긴 형태로 비정형적인 형태를 보였다. 기성 트레이를 이용하여 채득한 예비모형은 구강 스캐너를 이용한 예비 모형에 비해 상악의 경우, 협측의 변연이 과연장되었고, 후방 구개 폐쇄 부위에서는 압박되어 있었다. 또한 하악에서도 과연장되었으나, 상악에 비하여 그 양이 많지 않았다. 그리고 구강 스캐너에 의해 채득된 예비모형은 기성 트레이로 채득된 예비 모형에 비해 저연장되었으나, 해부학적 지표는 충분히 인기되었다. 기성 트레이에 의해 제작된 개인 트레이는 IOS에 의해 제작된 개인 트레이에 비하여 구강 내 시적 시, 개인 트레이의 조정량이 많았고 진료 시간이 증가하였다. 본 증례를 통해 비정형적인 악궁을 가진 환자에게 3D 구강 스캐너로 인상을 채득하는 것이 대안이 될 수 있음을 보고하는 바이다.

In complete denture fabrication, accurate preliminary impressions are crucial for obtaining an accurate final impression. However, it can be challenging in cases of atypical arch shapes. This case report compares diagnostic casts made with a stock tray and an intraoral scanner (IOS) in a patient with an atypical arch shape. A 58-year-old edentulous male patient with long, narrow, atypical arches was referred to the Oral and Maxillofacial Surgery department for complete denture fabrication. Compared to the diagnostic cast obtained using IOS with adequately captured anatomical parameters, the primary model obtained using a stock tray showed prominent overextended flanges on the labial and buccal sides of the maxillary arch and less prominent overextended flanges in the mandibular arch with pressure spots in the posterior palatal seal area. The custom tray fabricated from such a model required additional adjustment resulting in increased chair time during the final impression procedure.

키워드

참고문헌

  1. Ender A, Zimmermann M, Attin T, Mehl A. In vivo precision of conventional and digital methods for obtaining quadrant dental impressions. Clin Oral Investig 2016;20:1495-504. https://doi.org/10.1007/s00784-015-1641-y
  2. Skinner EW, Chung P. The effect of surface contact in the retention of a denture. J Prosthet Dent 1951;1:229-35. https://doi.org/10.1016/0022-3913(51)90055-8
  3. Patzelt SB, Vonau S, Stampf S, Att W. Assessing the feasibility and accuracy of digitizing edentulous jaws. J Am Dent Assoc 2013;144:914-20. https://doi.org/10.14219/jada.archive.2013.0209
  4. Mendonca G, Edwards SP, Mayers CA, Meneghetti PC, Liu F. Digital immediate complete denture for a patient with rhabdomyosarcoma: a clinical report. J Prosthodont 2021;30:196-201. https://doi.org/10.1111/jopr.13305
  5. Choi HY, Woo YH, Choi DG. A morphological study on residual alveolar ridges of edentulous jaws. J Korean Acad Prosthodont 1991;29:73-89.
  6. Chebib N, Imamura Y, El Osta N, Srinivasan M, Muller F, Maniewicz S. Fit and retention of complete denture bases: Part II - conventional impressions versus digital scans: A clinical controlled crossover study. J Prosthet Dent 2022:S0022-3913(22)00464-4.
  7. Lo Russo L, Caradonna G, Troiano G, Salamini A, Guida L, Ciavarella D. Three-dimensional differences between intraoral scans and conventional impressions of edentulous jaws: A clinical study. J Prosthet Dent 2020;123:264-8. https://doi.org/10.1016/j.prosdent.2019.04.004
  8. Chang Y, Maeda Y, Wada M, Gonda T, Ikebe K. Influence of mandibular residual ridge morphology on pressure distribution during impression procedures: a model experiment. Int J Prosthodont 2018;31:370-4. https://doi.org/10.11607/ijp.5719
  9. Masri G, Mortada R, Hatoum K, Al Harbi N, Boulos P, Salameh Z. Evaluation of the adaptation of complete dentures fabricated using intraoral scanning and conventional techniques. J Contemp Dent Pract 2020;21:1384-8. https://doi.org/10.5005/jp-journals-10024-2977
  10. Al Hamad KQ, Al-Kaff FT. Trueness of intraoral scanning of edentulous arches: a comparative clinical study. J Prosthodont 2023;32:26-31. https://doi.org/10.1111/jopr.13597
  11. Bosniac P, Rehmann P, Wostmann B. Comparison of an indirect impression scanning system and two direct intraoral scanning systems in vivo. Clin Oral Investig 2019;23:2421-7. https://doi.org/10.1007/s00784-018-2679-4
  12. Duncan JP, Raghavendra S, Taylor TD. A selective-pressure impression technique for the edentulous maxilla. J Prosthet Dent 2004;92:299-301. https://doi.org/10.1016/j.prosdent.2004.06.001