title: [Application of patient-participated digital design in esthetic rehabilitation of anterior teeth].
abstract: OBJECTIVE
  To explore a new method of patient-involved digital design, esthetic outcome prediction and fabrication for the esthetic rehabilitation of anterior teeth, and to provide an alternative choice for the restoration of anterior teeth.
  
  
  METHODS
  In this study, 32 patients with esthetic problems in their anterior teeth were included and divided into two groups randomly: the experimental group (16 patients) and control group (16 patients). In the experimental group, the dentition and facial images were obtained by intra-oral scanning and Three-dimensional (3D) facial scanning and then calibrated. The design of the rehabilitation and the esthetic outcome prediction were created by computer-aided design (CAD) software. After morphologic modification according to the patients' opinions, prostheses were fabricated according to the final design by computer-aided manufacturing (CAM) equipment. As for the control group, the regular design method was applied to restore their anterior teeth. The time consuming in the first insertion of each restoration in both groups was recorded. The quality of the prostheses was assessed by another prosthedontist. The satisfaction to prostheses and the facial appearance were evaluated by the patients.
  
  
  RESULTS
  The process of the patient-involved digital design and outcome anticipation was successfully established. The patients were satisfied with the esthetic effects of the anterior restoration made by the digital technique. The acceptance rate of the patients on the digital rehabilitation in the experimental group was 100%. There was no significant difference of the quality of the prostheses between the two groups. The satisfaction rate of the patients on prostheses and facial appearance was significantly higher in the experimental group than in the control group (P < 0.05). In addition, the time consuming in the first insertion of the experimental group was much shorter than that in the control group (P < 0.01).
  
  
  CONCLUSIONS
  The new method of the patient-involved digital design, esthetic outcome prediction and fabrication for the esthetic rehabilitation of anterior teeth is a practical technique. This method is useful in shortening the time consuming of the restoration of anterior teeth and improving the patient satisfaction with the esthetic outcome.
authors.affiliation: Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
authors.forename: Yun-song
authors.initials: YS
authors.lastname: Liu
authors.affiliation: Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
authors.forename: Hong-qiang
authors.initials: HQ
authors.lastname: Ye
authors.affiliation: Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Gu
authors.affiliation: Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Long-wei
authors.initials: LW
authors.lastname: Lv
authors.affiliation: Center of Digital Dentistry, Peking University School and Hospital of Stomatology; Research Center of Engineering and Technology for Digital Dentistry, National Health and Family Planning Commission, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
authors.forename: Yu-chun
authors.initials: YC
authors.lastname: Sun
authors.affiliation: Center of Digital Dentistry, Peking University School and Hospital of Stomatology; Research Center of Engineering and Technology for Digital Dentistry, National Health and Family Planning Commission, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
authors.forename: Yi-jiao
authors.initials: YJ
authors.lastname: Zhao
authors.affiliation: Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
authors.forename: Yong-sheng
authors.initials: YS
authors.lastname: Zhou
mesh_terms: D017076:Computer-Aided Design; D004955:Esthetics, Dental; D006801:Humans; D021621:Imaging, Three-Dimensional; D007180:Incisor; D010358:Patient Participation; D017060:Patient Satisfaction