Prosthetic treatment for Down's syndrome patient with dental cross bite problem using maxillary double crown denture

교차교합을 가진 다운증후군 환자의 상악 이중관 의치를 이용한 수복 증례

  • Doh, Seok-Joo (Department of Prosthodontics, School of Dentistry, Kyungpook National University) ;
  • Cho, Jin-Hyun (Department of Prosthodontics, School of Dentistry, Kyungpook National University)
  • 도석주 (경북대학교 치과대학 치과보철학교실) ;
  • 조진현 (경북대학교 치과대학 치과보철학교실)
  • Received : 2018.08.29
  • Accepted : 2018.10.23
  • Published : 2019.01.31


Patients with Down's syndrome have several dental complications such as small teeth caused by underdevelopment of dentin and enamel, periodontitis, agenesis of teeth, prolonged retention of primary teeth and malocclusion due to narrow palate. Removable denture with maxillary double crowns would be a good treatment option to solve the problems of the patient with Down's syndrome. Double crowns compensate the insufficient support and retention of denture and easily solve the cross bite problem. Double crowns also allow easy repair of denture in case of abutment teeth extraction. In this case, 26-year-old female patient with Down's syndrome and dental phobia had small number of teeth with enamel hypoplasia, prolonged retention of primary teeth and dental cross bite. Prosthetic treatment was done using removable denture with double crowns in the maxilla. In the mandible, teeth preparation was done on enamel margin without anesthesia. Anterior laminate and posterior complete zirconia crown restorations were performed. As a result, the cross bite was effectively corrected by denture with double crowns. Pronunciation and appearance were also improved without extraction of teeth and dental anesthesia.


  1. Shajpal A, Siddiqui F. Screening for Down syndrome. Obstet Gynaecol Reprod Med 2017;27:333-7.
  2. Roizen NJ, Patterson D. Down's syndrome. Lancet 2003;361:1281-9.
  3. Crawford D, Dearmun A. Down's syndrome. Nurs Child Young People 2016;28:17.
  4. van der Linden MS, Vucic S, van Marrewijk DJF, Ongkosuwito EM. Dental development in Down syndrome and healthy children: a comparative study using the Demirjian method. Orthod Craniofac Res 2017;20:65-70.
  5. Macho V, Palha M, Macedo AP, Ribeiro O, Andrade C. Comparative study between dental caries prevalence of Down syndrome children and their siblings. Spec Care Dentist 2013;33:2-7.
  6. Severin E, Paun A, Baltag R, Stan A, Funieru C. Common, rare, and individual oro-dental findings in people with Down syndrome. J Int Oral Health 2016;8:964-8.
  7. Dawson PE. Functional occlusion: from TMJ to smile design. St. Louis: Mosby; 2007. p. 114-31.