Journal of Prevention and Treatment for Stomatological Diseases ›› 2018, Vol. 26 ›› Issue (4): 245-249.doi: 10.12016/j.issn.2096-1456.2018.04.009

• Cinical Study • Previous Articles     Next Articles

The effects of two different patterns on the precision of zirconia all-ceramic crowns

Juan ZHANG, Dongjian LI, Jie JIANG, Yan SITU, Shuangshuang ZOU, Xingtao. WEN   

  • Received:2017-05-18 Revised:2017-07-10 Online:2018-04-20 Published:2018-08-31

Abstract:

Objective The objective of this study was to compare the early clinical effects of zirconia all-ceramic crowns using two different impression methods. Zirconia ceramic crowns were produced using digital models based on either a silicone rubber impression perfusion model in vitro or a 3D mouth scanner. A total of 50 patients with a planned restoration of the first permanent molar with zirconia all-ceramic crowns after root canal therapy were selected and randomly divided into two groups: a digital impression by intraoral 3D scanning group and a digital impression by extraoral scanning after silicone rubber impression group. Zirconia all-ceramic crowns were created by CAD/CAM in both groups. Marginal adaptation, proximal contact, and occlusal contact were compared between groups. There was no significant difference between the two groups in marginal adaptation (P > 0.05). For proximal contact and occlusal contact, no significant differences regarding the number of cases for the criteria of level A and level B were found between two groups (P > 0.05), while the misfit value in level B was smaller in the first group than in the second group (P < 0.05). Zirconia all-ceramic crowns with intraoral 3D scanning show excellent early clinical performance.

Key words: Digital impression, 3D scanner, Silicone rubber impression, Marginal adaptation, Proximal contact, Occlusal contact, Precision

Figure 1

Digital pictures using a Trios intraoral scanner"

Table 1

Clinical try-in evaluation criteria of zirconia all -ceramic crowns"

评价指标 等级 评价标准
边缘适合性


邻接

咬合
A
B
C
A
B
A
B
完好吻合,不卡尖锐探针。
卡探针,但无可被探针探入的裂缝。
有明显裂缝,牙本质或粘接剂暴露。
邻接适中(无邻接误差)
邻接过紧或过松(测量邻接误差大小)
咬合正常(无咬合误差)
咬合过高或过低(测量咬合误差大小)

Figure 2

Digital pictures of a gypsum model using a D700"

Table 2

Clinical try-in results of zirconia ceramic crowns in the two groups n = 25"

组别 边缘适合性 邻接 咬合
A B C A B A B
甲组 23 2 0 19 6 17 8
乙组 22 3 0 15 10 12 13
Z/χ2 -0.045 1.47 2.05
P 0.654 0.225 0.152

Figure 3

Typical case from the first group"

Figure 4

Typical case from the second group"

[1] Mello BZ, Fernandes VM, Carrara CF, et al.Evaluation of the intercanine distance in newborns with cleft lip and palate using 3D digital casts[J]. J Appl Oral Sci, 2013, 21(5): 437-442.
[2] Pekam FC, Marotti J, Wolfart SA, et al.High-frequency ultrasound as an option for scanning of prepared teeth: an in vitro study[J]. Ultrasound Med Biol, 2015, 41(1): 309-316.
[3] Levy JA, Noble VE.Bedside ultrasound in pediatric emergency medicine[J]. Pediatrics, 2008, 121(5): e1404-e1412.
[4] 杨鑫, 孙一飞, 田雷, 等. 模拟口腔取模环境下 TRIOS 数字印模的精密度[J]. 北京大学学报(医学版), 2015, 47(1): 85-89.
[5] 占莉琳, 曾利伟, 陈萍, 等. 不同数字印模方式影响全瓷冠边缘适合性的研究[J]. 华西口腔医学杂志, 2015, 33(4): 401-404.
[6] Almeida e Silva JS, Erdelt K, Edelhoff D, et al. Marginal and internal fit of four-unit zirconia fixed dental prostheses based on digital and conventional impression techniques[J]. Clin Oral Investig, 2014, 18(2): 515-523.
[7] Pedroche LO, Bernardes SR, Leao MP, et al.Marginal and internal fit of zirconia copings obtained using different digital scanning methods[J]. Braz Oral Res, 2016, 30(1): e113.
[8] Ender A, Mehl A.Accuracy of complete-arch dental impressions: a new method of measuring trueness and precision[J]. J Prosthet Dent, 2013, 109(2): 121-128.
[9] Luthardt RG, Walter MH, Weber A, et al.Clinical parameters influencing the accuracy of 1-and 2-stage impressions: a randomized controlled trial[J]. Int J Prosthodont, 2008, 21(4): 322-327.
[10] Jeon JH, Lee KT, Kim HY, et al.White light scanner-based repeatability of 3-dimensional digitizing of silicon rubber abutment teeth impressions[J]. J Adv Prosthodont, 2013, 5(4): 452-456.
[11] Galhano GÁ, Pellizzer EP, Mazaro JV.Optical impression systems for CAD-CAM restorations[J]. J Craniofac Surg, 2012, 23(6): e575-e579.
[12] Rudolph H, Salmen H, Moldan M, et al.Accuracy of intraoral and extraoral digital data acquisition for dental restorations[J]. J Appl Oral Sci, 2016, 24(1): 85-94.
[13] Kohorst P, Brinkmann H, Li J, et al.Marginal accuracy of four-unit zirconia fixed dental prostheses fabricated using different computer-aided design/computer-aided manufacturing systems[J]. Eur J Oral Sci, 2009, 117(3): 319-325.
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