Email Alert | RSS

Journal of Peking University (Health Sciences) ›› 2021, Vol. 53 ›› Issue (1): 69-75. doi: 10.19723/j.issn.1671-167X.2021.01.011

Previous Articles     Next Articles

Comparison of residual cement between CAD/CAM customized abutments and stock abutments via digital measurement in vitro

YUE Zhao-guo1,ZHANG Hai-dong1,YANG Jing-wen2,HOU Jian-xia1,Δ()   

  1. 1. Department of Periodontology, 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. Department of Prosthetics, 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:2020-10-12 Online:2021-02-18 Published:2021-02-07
  • Contact: Jian-xia HOU E-mail:jxhou@163.com
  • Supported by:
    Research Foundation of Peking University School and Hospital of Stomatology(YS020217)

RICH HTML

   

PDF (PC)

Abstract:

Objective: To compare the residual cement between computer aided design/computer aided manufacturing customized abutments (CCA) and stock abutments (SA), and to evaluate the feasibility of digital measurement for residual cement volume by three-dimensional scanning.Methods: Twenty master models needed in this study were all taken from one 47-year-old patient with arrested periodontitis, who had already had an implant placed at his right upper central incisor site in the Department of Periodonto-logy, Peking University School and Hospital of Stomatology. After 4 weeks of soft tissue conditioning by means of customized healing abutment, the height of peri-implant soft tissue was measured, from the implant platform to mucosal margin, as 5 mm. Using customized impression coping, the impression was taken and twenty models were fabricated and allocated to 4 groups according to the type of abutments: CCA1 (5 mm transmucosal height CCA, with margin at tissue level), CCA2 (4 mm transmucosal height CCA, with 1 mm submucosal margin), SA1 (3 mm transmucosal height SA, with 2 mm submucosal margin) and SA2 (1 mm transmucosal height SA, with 4 mm submucosal margin). Crowns were cemented to the abutments, which were seated on the working models. Excess cement was removed by a prosthodontic specialist. Thereafter, the volume of residual cement was evaluated by using three-dimensional scanning technique. The area proportion of residual cement was calculated on photographs taken by a single lens reflex camera. The weight of residual cement was weighed by an analytical balance. And the correlation of residual cement volume data with residual cement area proportion or weight of residual cement acquired by traditional methods was analyzed.Results: Residual cement was observed on all the experiment samples. The residual cement volume of CCA was significantly less than that of SA [(0.635 3±0.535 4) mm3 vs. (2.293 8±0.943 8) mm 3, P<0.001]. Consistently, CCA had less residual cement area proportion and weight than those of SA [area proportion: 7.57%±2.99% vs. 22.68%±10.06%,P<0.001; weight: (0.001 5±0.001 0) g vs. (0.003 7±0.001 4) g, P<0.001]. The residual cement volume was strongly correlated with the residual cement area proportion and residual cement weight (r>0.75, P<0.001).Conclusion: These in vitro results suggest that CCA minimized the residual cement more effectively than SA. The method to digitally evaluate the residual cement volume is feasible, but its validity and reliability need to be further studied.

Key words: Dental implant-abutment design, Computer-aided design, Dental cements, Imaging, three-dimensional, In vitro

CLC Number: 

  • R783

Figure 1

Allocation of different abutments A, CAD/CAM customized abutments (CCA) with 5 mm transmucosal height, margins at tissue level (CCA1); B, CCA with 4 mm transmucosal height, 1 mm submucosal margins (CCA2); C, stock abutments (SA) with 3 mm transmucosal height, 2 mm submucosal margins (SA1); D, SA with 1 mm transmucosal height, 4 mm submucosal margins (SA2)."

Figure 2

Digital measurement of residual cement volume"

Figure 3

Measurement of residual cement area proportion A, the abutment and crown were erected using silicone rubber material; B, taking photo with a single lens reflex camera at a constant distance (250 mm); C, four aspects (buccal-, lingual-, mesial- and distal-) of each sample were snapshotted for analysis; D, calculating residual cement area proportion using software."

Table 1

Less residual cement in CCA group than in SA group"

Group Volume/mm3 Area proportion/% Weight/g
CCA 0.635 3±0.535 4 7.57±2.99 0.001 5±0.001 0
SA 2.293 8±0.943 8 22.68±10.06 0.003 7±0.001 4
t 5.044 4.908 4.236
P <0.001 <0.001 <0.001

Table 2

Comparison of the amount of residual cement between CCA group and SA group"

Items CCA1 group CCA2 group SA1 group SA2 group
Volume/mm3 0.709 2±0.526 2 0.561 4±0.595 3 2.144 2±1.165 1*## 2.443 4±0.768 7**##
Area proportion/% 7.81±2.63 7.32±3.62 22.10±13.77*## 23.26±6.10**##
Weight/g 0.001 6±0.001 3 0.001 3±0.000 9 0.003 5±0.001 5*# 0.004 0±0.001 4*##

Figure 4

Undercuts around stock abutments ☆, the undercut is the distance between the cementation line and the restoration emergence profile margin."

[1] Jung RE, Pjetursson BE, Glauser R, et al. A systematic review of the 5-year survival and complication rates of implant-supported single crowns[J]. Clin Oral Implants Res, 2008,19(2):119-130.
doi: 10.1111/j.1600-0501.2007.01453.x pmid: 18067597
[2] Chee W, Felton DA, Johnson PF, et al. Cemented versus screw-retained implant prostheses: Which is better?[J]. Int J Oral Maxillofac Implants, 1999,14(1):137-141.
pmid: 10074764
[3] Linkevicius T, Vindasiute E, Puisys A, et al. The influence of margin location on the amount of undetected cement excess after delivery of cement-retained implant restorations[J]. Clin Oral Implants Res, 2011,22(12):1379-1384.
doi: 10.1111/j.1600-0501.2010.02119.x pmid: 21382089
[4] Staubli N, Walter C, Schmidt JC, et al. Excess cement and the risk of peri-implant disease: A systematic review[J]. Clin Oral Implants Res, 2017,28(10):1278-1290.
doi: 10.1111/clr.12954 pmid: 27647536
[5] Korsch M, Obst U, Walther W. Cement-associated peri-implantitis: A retrospective clinical observational study of fixed implant-supported restorations using a methacrylate cement[J]. Clin Oral Implants Res, 2014,25(7):797-802.
doi: 10.1111/clr.12173 pmid: 23600620
[6] Wilson TG Jr. The positive relationship between excess cement and peri-implant disease: A prospective clinical endoscopic study[J]. J Periodontol, 2009,80(9):1388-1392.
doi: 10.1902/jop.2009.090115 pmid: 19722787
[7] Linkevicius T, Puisys A, Vindasiute E, et al. Does residual cement around implant-supported restorations cause peri-implant disease? A retrospective case analysis[J]. Clin Oral Implants Res, 2013,24(11):1179-1184.
doi: 10.1111/j.1600-0501.2012.02570.x pmid: 22882700
[8] Ichikawa T, Ishida O, Watanabe M, et al. A new retrieval system for cement-retained implant superstructures: A technical report[J]. J Prosthodont, 2008,17(6):487-489.
doi: 10.1111/j.1532-849X.2008.00329.x pmid: 18544129
[9] Galván G, Kois JC, Chaiyabutr Y, et al. Cemented implant restoration: A technique for minimizing adverse biologic consequences[J]. J Prosthet Dent, 2015,114(4):482-485.
doi: 10.1016/j.prosdent.2014.10.017 pmid: 26119018
[10] Seo CW, Seo JM. A technique for minimizing subgingival residual cement by using rubber dam for cement-retained implant crowns[J]. J Prosthet Dent, 2017,117(2):327-328.
doi: 10.1016/j.prosdent.2016.08.024 pmid: 27771147
[11] Linkevicius T. Zero bone loss concepts [M]. Illinois: Quintessence Publishing Co, 2019.
[12] Lewis S, Beumer J 3rd, Hornburg W, et al. The “UCLA” abutment[J]. Int J Oral Maxillofac Implants, 1988,3(3):183-189.
pmid: 3074050
[13] 戴文雍, 汤春波. 种植体修复个性化基台研究现状及展望[J]. 口腔医学, 2012,32(11):685-687.
[14] 宿玉成. 口腔种植学[M]. 2版. 北京: 人民卫生出版社, 2014: 403-404.
[15] Shapoff CA, Lahey BJ. Crestal bone loss and the consequences of retained excess cement around dental implants[J]. Compend Contin Educ Dent, 2012,33(2):94-101.
pmid: 22545427
[16] Schwarz F, Derks J, Monje A, et al. Peri-implantitis[J]. J Clin Periodontol, 2018,45(Suppl 20):S246-S266.
doi: 10.1111/jcpe.2018.45.issue-S20
[17] Andersson B, Odman P, Lindvall AM, et al. Cemented single crowns on osseointegrated implants after 5 years: Results from a prospective study on CeraOne[J]. Int J Prosthodont, 1998,11(3):212-218.
pmid: 9728114
[18] Linkevicius T, Vindasiute E, Puisys A, et al. The influence of the cementation margin position on the amount of undetected cement. A prospective clinical study[J]. Clin Oral Implants Res, 2013,24(1):71-76.
doi: 10.1111/j.1600-0501.2012.02453.x pmid: 22487018
[19] Kappel S, Eiffler C, Lorenzo-Bermejo J, et al. Undetected resi-dual cement on standard or individualized all-ceramic abutments with cemented zirconia single crowns: A prospective randomized pilot trial[J]. Clin Oral Implants Res, 2016,27(9):1065-1071.
doi: 10.1111/clr.12691 pmid: 26381392
[20] Kotsakis GA, Zhang L, Gaillard P, et al. Investigation of the association between cement retention and prevalent peri-implant diseases: A cross-sectional study[J]. J Periodontol, 2016,87(3):212-220.
doi: 10.1902/jop.2015.150450 pmid: 26537368
[21] Daubert DM, Weinstein BF, Bordin S, et al. Prevalence and predictive factors for peri-implant disease and implant failure: A cross-sectional analysis[J]. J Periodontol, 2015,86(3):337-347.
doi: 10.1902/jop.2014.140438 pmid: 25415249
[22] Fuchigami K, Munakata M, Kitazume T, et al. A diversity of peri-implant mucosal thickness by site[J]. Clin Oral Impl Res, 2017,28(2):171-176.
[23] 张众, 孟焕新, 韩劼, 等. 软组织垂直厚度对牙周炎患者种植修复临床效果的影响[J]. 北京大学学报(医学版), 2020,52(2):332-338.
[24] Dumbrigue HB, Abanomi AA, Cheng LL. Techniques to minimize excess luting agent in cement-retained implant restorations[J]. J Prosthet Dent, 2002,87(1):112-114.
doi: 10.1067/mpr.2002.119418 pmid: 11807495
[25] Vindasiute E, Puisys A, Maslova N, et al. Clinical factors influencing removal of the cement excess in implant-supported restorations[J]. Clin Implant Dent Relat Res, 2015,17(4):771-778.
doi: 10.1111/cid.12170 pmid: 24224895
[26] Andersson B, Odman P, Lindvall AM, et al. Single-tooth restorations supported by osseointegrated implants: results and experiences from a prospective study after 2 to 3 years[J]. Int J Oral Maxillofac Implants, 1995,10(6):702-711.
pmid: 8530173
[27] Higginbottom F, Belser U, Jones JD, et al. Prosthetic management of implants in the esthetic zone[J]. Int J Oral Maxillofac Implants, 2004,19(Suppl.):62-72.
[28] Berglundh T, Lindhe J, Marinello C, et al. Soft tissue reaction to de novo plaque formation on implants and teeth. An experimental study in the dog[J]. Clin Oral Implants Res, 1992,3(1):1-8.
doi: 10.1034/j.1600-0501.1992.030101.x pmid: 1420721
[29] 高鹏程, 谢理哲, 严斌. 牙颌模型三维数字化技术及其在口腔正畸学中的应用进展[J]. 口腔生物医学, 2014,5(3):152-157.
[1] Yuxuan TIAN,Mingjian RUAN,Yi LIU,Derun LI,Jingyun WU,Qi SHEN,Yu FAN,Jie JIN. Predictive effect of the dual-parametric MRI modified maximum diameter of the lesions with PI-RADS 4 and 5 on the clinically significant prostate cancer [J]. Journal of Peking University (Health Sciences), 2024, 56(4): 567-574.
[2] Liang LYU,Mingjin ZHANG,Aonan WEN,Yijiao ZHAO,Yong WANG,Jing LI,Gengchen YANG,Dawei LIU. Preliminary evaluation of chin symmetry with three dimentional soft tissue spatial angle wireframe template [J]. Journal of Peking University (Health Sciences), 2024, 56(1): 106-110.
[3] Bochun MAO,Yajing TIAN,Xuedong WANG,Jing LI,Yanheng ZHOU. Soft and hard tissue changes of hyperdivergent class Ⅱ patients before and after orthodontic extraction treatment [J]. Journal of Peking University (Health Sciences), 2024, 56(1): 111-119.
[4] Xiaotong LING,Liuyang QU,Danni ZHENG,Jing YANG,Xuebing YAN,Denggao LIU,Yan GAO. Three-dimensional radiographic features of calcifying odontogenic cyst and calcifying epithelial odontogenic tumor [J]. Journal of Peking University (Health Sciences), 2024, 56(1): 131-137.
[5] Xinyu XU,Ling WU,Fengqi SONG,Zili LI,Yi ZHANG,Xiaojing LIU. Mandibular condyle localization in orthognathic surgery based on mandibular movement trajectory and its preliminary accuracy verification [J]. Journal of Peking University (Health Sciences), 2024, 56(1): 57-65.
[6] Sui LI,Wenjie MA,Shimin WANG,Qian DING,Yao SUN,Lei ZHANG. Trueness of different digital design methods for incisal guidance of maxillary anterior implant-supported single crowns [J]. Journal of Peking University (Health Sciences), 2024, 56(1): 81-87.
[7] Yi LIU,Chang-wei YUAN,Jing-yun WU,Qi SHEN,Jiang-xi XIAO,Zheng ZHAO,Xiao-ying WANG,Xue-song LI,Zhi-song HE,Li-qun ZHOU. Diagnostic efficacy of prostate cancer using targeted biopsy with 6-core systematic biopsy for patients with PI-RADS 5 [J]. Journal of Peking University (Health Sciences), 2023, 55(5): 812-817.
[8] Chang-wei YUAN,De-run LI,Zhi-hua LI,Yi LIU,Gang-zhi SHAN,Xue-song LI,Li-qun ZHOU. Application of dynamic contrast enhanced status in multiparametric magnetic resonance imaging for prostatic cancer with PI-RADS 4 lesion [J]. Journal of Peking University (Health Sciences), 2023, 55(5): 838-842.
[9] Zhan-yi ZHANG,Fan ZHANG,Ye YAN,Cai-guang CAO,Chang-jian LI,Shao-hui DENG,Yue-hao SUN,Tian-liang HUANG,Yun-he GUAN,Nan LI,Min LU,Zhen-hua HU,Shu-dong ZHANG. Near-infrared targeted probe designed for intraoperative imaging of prostatic neurovascular bundles [J]. Journal of Peking University (Health Sciences), 2023, 55(5): 843-850.
[10] Zhuo-hua LIN,Ru-yi CAI,Yang SUN,Rong MU,Li-gang CUI. Methodology and clinical use of superb microvascular imaging in assessing micro-circulation changes of fingertips in systemic sclerosis [J]. Journal of Peking University (Health Sciences), 2023, 55(4): 636-640.
[11] Ying LIU,Ran HUO,Hui-min XU,Zheng WANG,Tao WANG,Hui-shu YUAN. Correlations between plaque characteristics and cerebral blood flow in patients with moderate to severe carotid stenosis using magnetic resonance vessel wall imaging [J]. Journal of Peking University (Health Sciences), 2023, 55(4): 646-651.
[12] Qiang FU,Guan-ying GAO,Yan XU,Zhuo-hua LIN,You-jing SUN,Li-gang CUI. Comparative study of ultrasound and magnetic resonance imaging in the diagnosis of asymptomatic anterosuperior acetabular labrum tears [J]. Journal of Peking University (Health Sciences), 2023, 55(4): 665-669.
[13] Xiang LIU,Hui-hui XIE,Yu-feng XU,Xiao-dong ZHANG,Xiao-feng TAO,Lin LIU,Xiao-ying WANG. Value of artificial intelligence in the improvement of diagnostic consistency of radiology residents [J]. Journal of Peking University (Health Sciences), 2023, 55(4): 670-675.
[14] Wen ZHANG,Xiao-jing LIU,Zi-li LI,Yi ZHANG. Effect of alar base cinch suture based on anatomic landmarks on the morphology of nasolabial region in patients after orthognathic surgery [J]. Journal of Peking University (Health Sciences), 2023, 55(4): 736-742.
[15] 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.
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