Email Alert | RSS

Journal of Peking University (Health Sciences) ›› 2020, Vol. 52 ›› Issue (5): 924-930. doi: 10.19723/j.issn.1671-167X.2020.05.022

Previous Articles     Next Articles

Validation of the digital integration technology for evaluating the nasolabial morphology variation after the cross-arch fixed restoration of maxillary implant-supported prostheses

Ke-yi HAO,Jia LUO,Ping DI,Hou-zuo GUO,Hui-dan SHEN,Yan-ping LIU,Yu ZHANG(),Ye LIN   

  1. Department of Oral Implantology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
  • Received:2018-04-09 Online:2020-10-18 Published:2020-10-15
  • Contact: Yu ZHANG E-mail:zhang76yu@163.com
  • Supported by:
    Program for New Clinical Techniques and Therapies of Peking University School and Hospital of Stomatology(PKUSSNCT-17A05)

RICH HTML

   

PDF (PC)

Abstract:

Objective: To explore the applicability of integration between three-dimensional (3D) facial and dental data to evaluate the nasolabial morphology variation before and after the cross-arch fixed restoration of the maxillary implant-supported prostheses. Methods: Twelve patients (4 women and 8 men), mean age (54.82±5.50) years (from 45 to 62 years) referred to the Department of Oral Implan-tology, Peking University School and Hospital of Stomatology, were selected and diagnosed with edentulous maxilla. For all the patients, 4 to 6 implants were inserted into the maxilla. Six months later, the final cross-arch fixed prostheses were delivered. The 3D facial images were collected before and after the final restoration. The 3D data of prostheses were also captured. All the 3D data were registered and measured in the same coordinate system. Then the displacement of all the landmarks [cheilion left (CHL), cheilion right (CHR), crista philtri left (CPHL), crista philtri right (CPHR), labrale supe-rius (LS), subnasale (SN), stomion (STO), upper incisor (UI), upper flange border of the prostheses (F-point, F)], and the variation of the distances between these landmarks (SN-LS, CPHR-CPHL, CHR-CHL, LS-STO) were analyzed and compared. Results: The consistency test among three measurements of the length of F-SN indicated that the integration method of the dental prostheses and soft tissue had the good repetitiveness, ICC=0.983 (95%CI: 0.957-0.995). After wearing the final cross-arch maxillary implant-supported prostheses, all the landmarks on the soft tissue moved forward. The nasal base area changed minimally, and the shift of SN in the sagittal direction was only (0.61±0.44) mm. But the sagittal shift of LS was (3.12±1.38) mm. In the vertical direction, SN, LS, CPHL, and CPHR moved upward. But STO, CHL, and CHR moved downward a little. Except for the slight decrease of the length of philtrum (SN-LS), the length of CHL-CHR, CPHL-CPHR, and the height of upper lip were increased together (P<0.01). In the direction of Z axis, the strong correlations were found not only between the movements of SN and F (r=0.904 3) but also between the movements of LS and UI (r=0.958 4). Conclusion: The integration method of 3D facial and dental data showed good repetitiveness. And the strong correlations between the landmarks of prostheses and nasolabial soft tissue in the sagittal direction were found by this new method.

Key words: Anthropometry, Edentulous maxilla, Dental implantation, Image processing, computer-assisted

CLC Number: 

  • R783

Figure 1

Variance analysis of the nasolabial soft tissue before and after restoration"

Figure 2

Protocol for 3D data collection and integration"

Figure 3

The schematic graph of the landmarks on the prostheses and the soft-tissue after restoration SN, subnasale; LS labrale superius; F, F-point; UI, upper incisor. "

Table 1

The average shift of landmarks after the cross-arch fixed restoration of the maxillary implant-supported prostheses (x-±s) "

Rank D/mm X/mm Y/mm Z/mm
SN 1.30±0.28 -0.74±0.35 -0.64±0.38 0.61±0.44
LS 4.36±1.07 -1.18±0.75 -2.02±1.69 3.12±1.38
STO 3.54±1.16 -1.12±0.77 1.78±1.35 2.16±1.62
CPHL 3.92±0.84 -1.16±0.78 -1.95±1.51 2.68±1.05
CPHR 3.99±1.37 1.19±1.08 -1.77±1.30 2.97±1.36
CHL 3.39±0.67 -2.06±0.49 1.84±1.06 1.41±1.06
CHR 2.87±0.80 1.59±0.76 1.57±0.80 1.53±0.68

Figure 4

Comparison of average displacement changes of landmarks in different directions before and after the restoration (Δ= change) Abbreviations as in Table 1. "

Figure 5

The average variation of distance before and after the cross-arch fixed restoration of maxillary implant-supported prostheses **, P<0.01. LS-STO (Y), represents the vertical distance between the two points. Abbreviations as in Table 1. "

Table 2

The clinically relevant corresponding prostheses and soft tissue changes in the Z-axis direction analyzed to derive the Pearson correlations and coefficients of determination"

Soft tissue-to-prostheses relationship Pearson correlation (r) Coefficient of determination (R2) P value for Pearson correlations
SN-Fa 0.904 3 0.817 8 <0.001#
LS-UIb 0.958 4 0.918 6 <0.001#

Figure 6

The Pearson correlations of clinically relevant corresponding prostheses and soft tissue changes in the Z-axis direction Abbreviations as in Table 1. "

[1] Kau CH, Richmond S, Zhurov A, et al. Use of 3-dimensional surface acquisition to study facial morphology in 5 populations[J]. Am J Orthod Dentofacial Orthop, 2010,137(4 Suppl):S56-57.
pmid: 20381762
[2] Karatas OH, Toy E. Three-dimensional imaging techniques: A literature review[J]. Eur J Dent, 2014,8(1):132-140.
pmid: 24966761
[3] Maló P, de Araújo Nobre M, Lopes A, et al. “All-on-4” imme-diate-function concept for completely edentulous maxillae: a clinical report on the medium (3 years) and long-term (5 years) outcomes[J]. Clin Implant Dent Relat Res, 2012,14(Suppl 1):e139-150.
doi: 10.1111/j.1708-8208.2011.00395.x
[4] Lopes A, Maló P, de Araújo Nobre M, et al. The NobelGuide® All-on-4® treatment concept for rehabilitation of edentulous jaws: a retrospective report on the 7-years clinical and 5-years radiographic outcomes [J]. Clin Implant Dent Relat Res, 2017,19(2):233-244.
pmid: 27758069
[5] 张宇, 林野, 刘洋, 等. 牙周炎晚期伴上颌牙槽骨前突畸形患者即刻种植全牙列固定修复的侧貌变化初探[J]. 中华口腔医学杂志, 2017,52(10):625-630.
[6] 邸萍, 林野, 李健慧, 等. 单颌拔牙后即刻种植即刻修复的临床回顾研究[J]. 中华口腔医学杂志, 2013,48(4):216-222.
[7] Holzinger D, Seemann R, Matoni N, et al. Effect of dental implants on bisphosphonate-related osteonecrosis of the jaws[J]. J Oral Maxillofac Surg, 2014, 72(10): 1937.e1-8.
[8] Tian K, Li Q, Wang X, et al. Reproducibility of natural head position in normal Chinese people[J]. Am J Orthod Dentofacial Orthop, 2015,148(3):503-510.
pmid: 26321348
[9] Huang Y, Zhang X, Fan Y, et al. Reshaping 3D facial scans for facial appearance modeling and 3D facial expression analysis[J]. Image and Vision Computing, 2012,30(10):750-761.
doi: 10.1016/j.imavis.2011.12.008
[10] Littlefield T, Kelly K, Cherney J, et al. Development of a new three-dimensional cranial imaging system[J]. J Craniofac Surg, 2004,15(1):175-181.
pmid: 14704586
[11] Rangel FA, Maal TJ, Bergé SJ, et al. Integration of digital dental casts in 3-dimensional facial photographs[J]. Am J Orthod Dentofacial Orthop, 2008,134(6):820-826.
pmid: 19061810
[12] Rosati R, De Menezes M, Rossetti A, et al. Digital dental cast placement in 3-dimensional, full-face reconstruction: a technical evaluation[J]. Am J Orthod Dentofacial Orthop, 2010,138(1):84-88.
pmid: 20620838
[13] Avrampou M, Mericske-Stern R, Blatz MB, et al. Virtual implant planning in the edentulous maxilla: criteria for decision making of prosjournal design[J]. Clin Oral Implants Res, 2013,24(Suppl A100):152-159.
doi: 10.1111/j.1600-0501.2011.02407.x
[14] Mu CQ, Wang SQ, Liu Y, et al. Development of a facescan 3D facial reconstruction technology method for quantitative evaluation of cheilitis granulomatosa[J]. Sci Rep, 2017,7(1):1295.
pmid: 28465526
[15] Kamashita Y, Kamada Y, Kawahata N, et al. Influence of lip support on the soft-tissue profile of complete denture wearers[J]. J Oral Rehabil, 2006,33(2):102-109.
doi: 10.1111/j.1365-2842.2006.01575.x pmid: 16457669
[16] Fourie Z, Damstra J, Gerrits PO, et al. Evaluation of anthropometric accuracy and reliability using different three-dimensional scanning systems[J]. Forensic Sci Int, 2011,207(1-3):127-134.
doi: 10.1016/j.forsciint.2010.09.018
[17] Metzger TE, Kula KS, Eckert GJ, et al. Orthodontic soft-tissue parameters: a comparison of cone-beam computed tomography and the 3dMD imaging system[J]. Am J Orthod Dentofacial Orthop, 2013,144(5):672-681.
pmid: 24182583
[18] Desesa CR, Metzler P, Sawh-Martinez R, et al. Three-dimensional nasolabial morphologic alterations following Le Fort I[J]. Plast Reconstr Surg Glob Open, 2016,4(8):e848.
pmid: 27622116
[19] Mccollum AGH, Dancaster JT, Evans WG, et al. Sagittal soft-tissue changes related to the surgical correction of maxillary-deficient Class III malocclusions[J]. Seminars in Orthodontics, 2009,15(3):172-184.
doi: 10.1053/j.sodo.2009.03.003
[20] 卫彦, 陈贵, 韩冰, 等. 三维照相定量评价总义齿修复前后面部软组织变化[J]. 北京大学学报(医学版), 2014,46(1):100-103.
[1] Yongtao YANG, Yuwen TIAN, Shenyao SHAN, Wenbo LI, Xiangyi SHANG, Yizhen WANG, Shuwei GUO, Zixiang GAO, Aonan WEN, Yijiao ZHAO, Yong WANG. A multi-view stereo vision methodology for digital soft-tissue impressions in fixed implant rehabilitation of edentulous patients [J]. Journal of Peking University (Health Sciences), 2026, 58(1): 126-132.
[2] Yuanyuan FANG, Fan XU, Jie LEI, Hao ZHANG, Wenyu ZHANG, Yu SUN, Hongxin WU, Kaiyuan FU, Weiyu MAO. Development and validation of a clinical automatic diagnosis system based on diagnostic criteria for temporomandibular disorders [J]. Journal of Peking University (Health Sciences), 2025, 57(1): 192-201.
[3] Hong LI, Feifei MA, Jinlong WENG, Yang DU, Binzhang WU, Feng SUN. Accuracy of dynamic navigation system for immediate dental implant placement [J]. Journal of Peking University (Health Sciences), 2025, 57(1): 85-90.
[4] Xiaoqiang LIU,Yin ZHOU. Risk factors of perioperative hypertension in dental implant surgeries with bone augmentation [J]. Journal of Peking University (Health Sciences), 2024, 56(1): 93-98.
[5] Meng-en OU,Yun DING,Wei-feng TANG,Yong-sheng ZHOU. Three-dimensional finite element analysis of cement flow in abutment margin-crown platform switching [J]. Journal of Peking University (Health Sciences), 2023, 55(3): 548-552.
[6] Ao-nan WEN,Wei LIU,Da-wei LIU,Yu-jia ZHU,Ning XIAO,Yong WANG,Yi-jiao ZHAO. Preliminary evaluation of the trueness of 5 chairside 3D facial scanning techniques [J]. Journal of Peking University (Health Sciences), 2023, 55(2): 343-350.
[7] WANG Juan,YU Hua-jie,SUN Jing-de,QIU Li-xin. Application evaluation of prefabricated rigid connecting bar in implants immediate impression preparation of edentulous jaw [J]. Journal of Peking University (Health Sciences), 2022, 54(1): 187-192.
[8] LI Xin-fei, PENG Yi-ji, YU Xiao-teng, XIONG Sheng-wei, CHENG Si-da, DING Guang-pu, YANG Kun-lin, TANG Qi, MI Yue, WU Jing-yun, ZHANG Peng, XIE Jia-xin, HAO Han, WANG He, QIU Jian-xing, YANG Jian, LI Xue-song, ZHOU Li-qun. Three dimensional nephrometry system for partial nephrectomy: Our initial exploration [J]. Journal of Peking University (Health Sciences), 2021, 53(3): 613-622.
[9] LIU Xiao-qiang,YANG Yang,ZHOU Jian-feng,LIU Jian-zhang,TAN Jian-guo. Blood pressure and heart rate changes of 640 single dental implant surgeries [J]. Journal of Peking University (Health Sciences), 2021, 53(2): 390-395.
[10] HUANG Xin-rui,LI Sha,GAO Song. Progress in filters for denoising cryo-electron microscopy images [J]. Journal of Peking University (Health Sciences), 2021, 53(2): 425-433.
[11] Jia LUO,Yu ZHANG,Hong-yan CUI,Ning ZHU,Hui-dan SHEN,Ping DI,Ye LIN. Digital workflow coupling conic retention for the immediate restoration of adjacent posterior implants [J]. Journal of Peking University (Health Sciences), 2020, 52(5): 964-970.
[12] Wei-ting LI,Peng LI,Mu-zi PIAO,Fang ZHANG,Jie DI. Study on bone volume harvested from the implant sites with different methods [J]. Journal of Peking University(Health Sciences), 2020, 52(1): 103-106.
[13] Shun-ji WANG,Wen-bo ZHANG,Yao YU,Xiao-yan XIE,Hong-yu YANG,Xin PENG. Application of computer-assisted design for anterolateral thigh flap in oral and maxillofacial reconstruction [J]. Journal of Peking University(Health Sciences), 2020, 52(1): 119-123.
[14] Qiang LUO,Qian DING,Lei ZHANG,Qiu-fei XIE. Quantitative analysis of occlusal changes in posterior partial fixed implant supported prostheses [J]. Journal of Peking University(Health Sciences), 2019, 51(6): 1119-1123.
[15] Jian-hua ZHU,Jing WANG,Xiao-jing LIU,Chuan-bin GUO. Accuracy analysis of robotic assistant needle placement for trigeminal gasserian ganglion [J]. Journal of Peking University(Health Sciences), 2019, 51(5): 973-976.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Peking University (Health Sciences), All Rights Reserved.
Powered by Beijing Magtech Co. Ltd