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Journal of Peking University(Health Sciences) ›› 2019, Vol. 51 ›› Issue (2): 349-355. doi: 10.19723/j.issn.1671-167X.2019.02.028

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Establishment and preliminary clinical evaluation of edentulous custom trays designed and fabricated by chair-side CAD and 3D printing systems

Kuan-paul WANG1,Hong-qiang YE1,Hu CHEN2,Yong WANG2,Yu-chun SUN2,∆(),Yong-sheng ZHOU1,∆()   

  1. 1. Department of Prosthodontics, 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;
    2. Center of Digital Dentistry, 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,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing 100081, China;
  • Received:2017-06-12 Online:2019-04-18 Published:2019-04-26
  • Contact: Yu-chun SUN,Yong-sheng ZHOU E-mail:polarshining@163.com;kqzhouysh@hsc.pku.edu.cn
  • Supported by:
    the Capital’s Funds for Health Improvement and Research(2016-1-4101);the Project for Culturing Leading Talents in Scientific and Technological Innovation of Beijing(Z171100001117169)

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Abstract:

Objective: To design and fabricate edentulous custom trays by chair-side computer-aided design and 3-dimensional printing (CAD/3DP) system of independent research and development and to evaluate their clinical effects based on prosthodontists’ satisfaction using the visual analogue scale (VAS).Methods: Fifteen edentulous patients were randomly recruited by three prosthodontists who passed the unified operating process training. The custom trays for each patient were fabricated using both chair-side CAD/3DP system of independent development and manually conventional method, and the final impressions were made by silicone impression materials (light body). The prosthodontist’s satisfaction was surveyed by the three prosthodontists via the questionnaire based on visual analogue scales.Results: In the degree of the prosthodontist’s satisfaction of final impressions, the average satisfactions of “try in” (the overall size, shape, convenience, etc.) on the 3DP custom tray made by independent development chair-side system and the manually conventional method were 9.18±0.19 and 8.23±0.22, respectively. The average satisfactions of the border line position (border extensions, frenal notch)were 8.91±0.40 and 7.96±0.23, respectively. The average satisfactions of the stability in border molding were 8.80±0.83 and 8.01±0.81, respectively. The average satisfactions of the quality of final impression (completeness, thickness of impression material, exposure of custom tray, shape of border) were 8.94±0.68 and 7.99±0.42, respectively. The average satisfactions of the difficulty of high quality impression (times of repetition, efficiency) were 9.20±0.37 and 7.88±0.22, respectively. The average satisfactions of the overall satisfaction were 9.11±0.49 and 7.95±0.15, respectively. There was signi-ficant difference in the satisfaction of “try in”, border line position, stability in border molding, quality of final impression, difficulty of high quality impression, and overall satisfaction between the 3DP custom tray made by chair-side system of independent development and the manually conventional method (P<0.05).Conclusion: In the degree of the prosthodontist’s satisfaction of final impression, the 3DP custom tray made by chair-side system of independent development is higher than that of the conventional custom tray, and it meets the clinical requirements and can be popularized in clinical application.

Key words: Denture, complete, Computer-aided design, Printing, three-dimensional, Custom trays

CLC Number: 

  • R783.6

Figure 1

The scanning data of mandibular primary impression A, chair-side CAD/3DP system of independent development for edentulous custom trays; B, mandibular primary impression; C, scanned data of mandibular primary impression."

Figure 2

Computer-aided design process of mandibular custom tray A, confirmation of border line; B, impression data was trimmed according to the border line and normal direction was flipped; C, filling undercut, which was marked with purple; D, selecting the buffering area (red region); E, setting the thickness of custom tray and impression space; F, adding a handle (bend handle); G, adding finger stops; H, adding tissue stops; I, drilling some vent holes on necessary regions."

Figure 3

Three-dimensional printed mandibular custom tray printed by independently developed FDM printer A, printing mandibular custom tray; B, tissue surface of three-dimensional printed mandibular custom tray."

Figure 4

Final impression was made by silicone rubber (light body)"

Table 1

Prosthodontists’ satisfaction for final impressions of two custom trays (x?±s)"

Items Independent development custom tray
chair-side CAD/3DP system		 Conventional method t P value
“Try in” (the overall size, shape, convenience, etc.) 9.18±0.19 8.23±0.22 16.660 &lt;0.01
Border line position (border extensions, frenal notch) 8.91±0.40 7.96±0.23 9.856 &lt;0.01
Stability in border molding 8.80±0.83 8.01±0.81 5.320 &lt;0.01
Quality of final impression (completeness, thickness of impression
material, exposure of custom tray, shape of border)		 8.94±0.68 7.99±0.42 6.721 &lt;0.01
Difficulty of high quality impression (times of repetition, efficiency) 9.20±0.37 7.88±0.22 12.988 &lt;0.01
Overall satisfaction 9.11±0.49 7.95±0.15 8.750 &lt;0.01
[1] 冯海兰, 徐军 . 口腔修复学[M]. 2版. 北京: 北京大学医学出版社, 2013: 267-269.
[2] Basker RM, Davenport JC, Thomason JM . Prosthetic treatment of the edentulous patient[M]. 4th ed. Oxford: Blackwell, 2002: 130-149.
[3] Zarb GA, Bolender GL, Eckert SE , et al. Prosthodontic treatment for edentulous patients[M]. 13th ed. St. Louis: Elsevier Mosby, 2013: 170-179.
[4] Boucher CO . Complete dentureprosthodontics: the state of the art[J]. J Prosthet Dent, 2004,92(4):309-315.
doi: 10.1016/j.prosdent.2004.05.017
[5] Rahn AO, Ivanhoe JR, Plummer KD. 全口义齿教科书[M]. 6版. 冯海兰,译. 北京: 人民卫生出版社, 2011: 74-79.
[6] Petrie CS, Walker MP, Williams K . A Survey of U.S. prosthodontists and dental schools on the current materials and methods for final impressions for complete denture prosthodontics[J]. J Prosthodont, 2005,14(4):253-262.
doi: 10.1111/jopr.2005.14.issue-4
[7] Al-Ahmar AO, Lynch CD, Locke M , et al. Quality of master impressions and related materials for fabrication of complete dentures in the UK[J]. J Oral Rehabil, 2008,35(2):111-115.
[8] van Noort R . The future of dental devices is digital[J]. Dent Mater, 2012,28(1):3-12.
doi: 10.1016/j.dental.2011.10.014
[9] Dawood A, Marti Marti B, Sauret-Jackson V , et al. 3D printing in dentistry[J]. Br Dent J, 2015,219(11):521-529.
doi: 10.1038/sj.bdj.2015.914
[10] Baroudi K, Ibraheem SN . Assessment of chair-side computer-aided design and computer-aided manufacturing restorations: a review of the literature[J]. J Int Oral Health, 2015,7(4):96-104.
[11] Patzelt SBM, Spies BC, Kohal RJ . CAD/CAM-fabricated implant-supported restorations: a systematic review[J]. Clin Oral Implants Res, 2015,26(Suppl.11):77-85.
[12] Williams RJ, Bibb R, Eggbeer D , et al. Use of CAD/CAM technology to fabricate a removable partial denture framework[J]. J Prosthet Dent, 2006,96(2):96-99.
doi: 10.1016/j.prosdent.2006.05.029
[13] 吴琳, 吕培军, 王勇 , 等. 可摘局部义齿支架铸型的计算机辅助设计与制作[J]. 中华口腔医学杂志, 2006,41(7):432-435.
[14] 孙玉春, 吕培军, 王勇 , 等. 计算机辅助设计与快速成形技术辅助制作全口义齿的探讨[J]. 中华口腔医学杂志, 2007,42(6):324-329.
[15] Chen H, Yang X, Chen L , et al. Application of FDM three-dimensional printing technology in the digital manufacture of custom edentulous mandible trays[J]. Sci Rep, 2016,6:19207.
doi: 10.1038/srep19207
[16] 陈虎, 赵甜, 王勇 , 等. 基于初印模三维扫描的无牙颌上颌个性化托盘计算机辅助设计及三维打印[J]. 北京大学学报(医学版), 2016,48(5):900-904.
doi: 10.3969/j.issn.1671-167X.2016.05.028
[17] 魏菱, 陈虎, 周永胜 , 等. 数字化全口义齿个别托盘制作与临床应用时间评价[J]. 北京大学学报(医学版), 2017,49(1):86-91.
[18] Liu Q, Leu MC, Schmitt SM . Rapid prototyping in dentistry: technology and application[J]. Int J Adv Manuf Technol, 2006,29(3):317-335.
doi: 10.1007/s00170-005-2523-2
[19] Torabi K, Farjood E, Hamedani S . Rapid prototyping technologies and their applications in prosthodontics, a review of literature[J]. J Dent, 2015,16(1):1-9.
[20] 徐军 . 总义齿与可摘局部义齿的设计[M]. 北京: 中国大百科全书出社, 2005: 16-17.
[21] Chang JJ, Chen JH, Lee HE , et al. Maximizing mandibular denture retention in the sublingual space[J]. Int J Prosthodont, 2011,24(5):460-464.
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