A retrospective 3-to-5 year study of the reconstruction of oral function using implant-supported prostheses in patients with hypohidrotic ectodermal dysplasia

Abstract

Abstract ABSTRACTThe aim of this study was to evaluate oral function rehabilitation in patients with hypohidrotic ectodermal dysplasia (HED) using implant-supported prostheses base on bone augmentation. From September 2005 and March 2009, twenty-five HED patients were chose to analyze clinical data in this study. The criteria for patient selection was including the patient displayed clinical features of HED, the number of congenitally missing teeth (>5), the age of patient (>16 years), the will of patient, and the tolerance of patient for bone graft surgery and implant placement. Follow-up evaluations was initiated from the time of prosthetic placement of implants and scheduled annually for 3-5 years. The effects of oral function reconstruction were assessed based on the cumulative survival and success rates of implants, the health of the peri-implant area, and the degree of patient satisfaction. Twenty-five HED patients received 169 conventional implants and 10 zygomatic implants (179 total implants). During 3-5 years of post-loading evaluations, five of the 179 implants failed and three implants were removed. The 3-year success and cumulative survival rates were 97.2% and 98.3%, respectively. Furthermore, periodontal probing and radiographic assessments showed that the 3-year incidence of peri-implantitis was 4.5%. Finally, HED patients expressed high degrees of satisfaction with their facial contours, comfort with the implant-supported prostheses, masticatory function, and pronunciation ability. The results of this 3-5 year retrospective study indicate that the oral function of HED patients can be effectively reconstructed using bone augmentation and implant-supported prostheses. However, longer-term results are warranted in the future.