Synthesis of a novel injectable alginate impression material and impression accuracy evaluation

doi:10.7518/hxkq.2022.06.006

Abstract

Abstract:

Objective This work aimed to synthesize a novel injectable alginate impression material and evaluate its accuracy. Methods Certain proportions of sodium alginate, trisodium phosphate dodecahydrate, potassium fluorotitanate, diatomaceous earth, and other ingredients were dissolved in water and mixed evenly with a planetary centrifugal mixer to obtain a certain viscosity base paste. Certain proportions of calcium sulfate hemihydrate, magnesium oxide, glycerin, and polyethylene glycol (PEG) 400 were mixed evenly with a planetary centrifugal mixer to obtain the reactor paste with the same viscosity as the base paste. The base and reactor pastes were poured into a two-cylinder cartridge at a 2∶1 volume ratio. A gun device was used to accomplish mixing by compressing materials into a mixing tip. The samples were divided into three groups: injectable alginate impression materials (IA group) as the experimental group, and Jeltrate alginate impression materials (JA group) and Silagum-putty/light addition silicone rubber impression materials (SI group) as the two control groups. Results Scanning electron microscopy (SEM) showed that the injectable alginate impression materials had a denser structure and fewer bubbles than the commercial alginate impression material. The accuracy of the three kinds of impression materials was evaluated by 3D image superposition. The deviations between the three test group models and the standard model (trueness) were 49.58 μm±1.453 μm (IA group), 54.75 μm±7.264 μm (JA group), and 30.92 μm±1.013 μm (SI group). The deviations of the models within each test group (precision) were 85.79 μm±8.191 μm (IA group), 97.65 μm±11.060 μm (JA group), and 56.51 μm±4.995 μm (SI group). Significant differences in trueness and precision were found among the three kinds of impression materials (P<0.05). Conclusion The accuracy of the new injectable alginate impression material was better than that of the traditional powder-type alginate impression material but worse than that of the addition silicone rubber impression materials. The novel injec-table alginate impression material demonstrated good operation performance and impression accuracy, showing broad application prospect.

Key words: injectability, alginate, impression materials, accuracy

CLC Number:

R 783.1

Liu Xingzi, Wang Xinhui, Wu Jingya, Luo Jingjing, Wang Yun, Li Quanli. Synthesis of a novel injectable alginate impression material and impression accuracy evaluation[J]. West China Journal of Stomatology, 2022, 40(6): 662-667.

Figures/Tables 5

Fig 1

Fig 2

Fig 3

Tab 1

Fig 4

References 18

1	Cervino G, Fiorillo L, Herford AS, et al. Alginate materials and dental impression technique: a current state of the art and application to dental practice[J]. Mar Drugs, 2018, 17(1): 18.
2	Cook W. Alginate dental impression materials: chemistry, structure, and properties[J]. J Biomed Mater Res, 1986, 20(1): 1-24.
3	Abdelraouf RM, Bayoumi RE, Hamdy TM. Effect of powder/water ratio variation on viscosity, tear strength and detail reproduction of dental alginate impression material (in vitro and clinical study)[J]. Polymers (Basel), 2021, 13(17): 2923.
4	Raszewski Z, Nowakowska-Toporowska A, Weżgowiec J, et al. Effect of water quantity and quality on the properties of alginate impression materials[J]. Dent Med Probl, 2018, 55(1): 43-48.
5	宋育萱, 梁瑞芬, 刘锐. 调拌方法对藻酸盐印模材料操作时间固化时间的影响[J]. 实用口腔医学杂志, 2017, 33(1): 119-121.
	Song YX, Liang RF, Liu R. Effect of mixing method on the working time and setting time of alginate inpression materials[J]. J Pract Stomatol, 2017, 33(1): 119-121.
6	阿部二郎, 小久保京子, 佐藤幸司. 下颌吸附性义齿和BPS临床指南[M]. 骆小平, 译. 北京: 人民军医出版社, 2014.
	Abe Erlang, Keiko Okubo, Yuki Sato. Mandibular suction-effective denture and BPS: a complete guide[M]. Translated by Luo XP. Beijing: People’s Military Me-dical Press, 2014.
7	Ellakany P, Tantawi ME, Mahrous AA, et al. Evaluation of the accuracy of digital impressions obtained from intraoral and extraoral dental scanners with different CAD/CAM scanning technologies: an in vitro study[J]. J Pro-sthodont, 2022, 31(4): 314-319.
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	DDIf N. Accuracy (trueness and precision) of measurement methods and results-Part 1: general principles and definitions ()[S]. Berlin: Beuth Verlag GmbH, 1998.
10	Murata H, Kawamura M, Hamada T, et al. Physical pro-perties and compatibility with dental stones of current alginate impression materials[J]. J Oral Rehabil, 2004, 31(11): 1115-1122.
11	Nallamuthu NA, Braden M, Patel MP. Some aspects of the formulation of alginate dental impression materials-setting characteristics and mechanical properties[J]. Dent Mater, 2012, 28(7): 756-762.
12	Hamilton MJ, Vandewalle KS, Roberts HW, et al. Microtomographic porosity determination in alginate mixed with various methods[J]. J Prosthodont, 2010, 19(6): 478-481.
13	曹勇, 何灏逾, 李昊, 等. 3种方式调拌Jeltrate藻酸盐印模材料的气泡含量及物理性能比较[J]. 国际口腔医学杂志, 2017, 44(1): 24-27.
	Cao Y, He HY, Li H, et al. Effects of mixing methods on the porosity and mechanical properties of three different alginate impression materials[J]. Int J Stomatol, 2017, 44(1): 24-27.
14	Ender A, Mehl A. Full arch scans: conventional versus digital impressions—an in-vitro study[J]. Int J Comput Dent, 2011, 14(1): 11-21.
15	陶倩燕, 魏斌. 口腔印模和模型精度的测量方法[J]. 上海交通大学学报(医学版), 2007, 27(10): 1271-1273.
	Tao QY, Wei B. Precision measurement methods for dental impression and models[J]. J Shanghai Jiaotong Univ (Med Sci), 2007, 27(10): 1271-1273.
16	Aly P, Mohsen C. Comparison of the accuracy of three-dimensional printed casts, digital, and conventional casts: an in vitro study[J]. Eur J Dent, 2020, 14(2): 189-193.
17	Raigrodski AJ. Contemporary materials and technologies for all-ceramic fixed partial dentures: a review of the literature[J]. J Prosthet Dent, 2004, 92(6): 557-562.
18	Naumovski B, Kapushevska B. Dimensional stability and acuracy of silicone-based impression materials u-sing different impression techniques-a literature review[J]. Pril (Makedon Akad Nauk Umet Odd Med Nauki), 2017, 38(2): 131-138.

印模材料	正确度	精密度
IA组	49.58±1.453^a	85.79±8.191^a
JA组	54.75±7.264^a	97.65±11.060^b
SI组	30.92±1.013^b	56.51±4.995^c

[1]	Zhang Xuejiao, Li Jianxin, Jiang Feng, Zhou Chuanjian, Wu Junling. Development of novel hydrophilic and antibacterial silicone rubber impression material for dental application [J]. West China Journal of Stomatology, 2022, 40(5): 541-548.
[2]	Zhao Zhihe, Jin Zuolin, Bai Yuxing, Fang Bing, Bai Ding, Li Weiran, He Hong, Hu Min, Liu Yuehua, Chen Lili, Song Jinlin, Cao Yang, Li Yu, Shu Rui. Core scientific issues of orthodontic tooth movement: position objective, efficiency, and accuracy [J]. West China Journal of Stomatology, 2022, 40(4): 371-376.
[3]	Kang Zebiao, Mai Xiaoxue, Wang Xin, Xie Fuqiang. Evaluation of the postoperative effect of computer-assisted free fibula mandibular reconstruction [J]. West China Journal of Stomatology, 2022, 40(2): 189-196.
[4]	Yang Liyuan, Liu Guanyi, Zhao Ling, Gao Xu. Comparison of the accuracy of three methods for determining maxillomandibular horizontal relationship of the complete denture [J]. West China Journal of Stomatology, 2020, 38(4): 404-409.
[5]	Yunjie Li,Binhong Teng,Yanhong Zhao,Qiang Yang,Lianyong Wang,Ying Huang. Preparation and evaluation of carboxymethyl chitosan/sodium alginate hydrogel for cartilage tissue engineering [J]. West China Journal of Stomatology, 2019, 37(3): 253-259.
[6]	Pengcheng Gao,Zhenqi Zhao,Yali Chen,Yang Zhao,Lizhe Xie,Bin Yan,Lin Wang. Accuracy of three-dimensional camera system based on stereophotography on photographic acquisition of deformity facial images [J]. West China Journal of Stomatology, 2019, 37(2): 174-179.
[7]	Jinmeng Li, Guomin. Ou. Accuracy of computer-guided implant placement and influencing factors [J]. West China Journal of Stomatology, 2017, 35(1): 93-98.
[8]	Jiang Chengcheng, Song Qinggao, He Wei, Chen Shang, Hong Tao.. Reliability of iWitness photogrammetry in maxillofacial application [J]. West China Journal of Stomatology, 2015, 33(3): 296-300.
[9]	Wang Yanmei, He Jiacai, Li Quanli, Shen Jijia. Preparation of sodium alginate-nanohydroxyapatite composite material for bone repair and its biocompatibility [J]. West China Journal of Stomatology, 2014, 32(1): 27-31.
[10]	Feng Chi, Li Conghua, Zeng Xing-qi, Wang Qinhua, Zheng Qian, Qiu Ye. Investigation of accuracy of premolar length measured by cone beam CT in vivo [J]. West China Journal of Stomatology, 2014, 32(1): 36-39.
[11]	Wang Jin, Sun Wei, Ji Aiping.. Clinical investigation of the positioning accuracy of acute pulpitis pain [J]. West China Journal of Stomatology, 2013, 31(5): 483-486.
[12]	LIU Hong1, LIU Dong-xu1, WANG Ke-tao2, WANG Chun-ling1, ZHAO Zhen1. Accuracy evaluation of computer aided design and computer aided manufacture template for implant placement [J]. West China Journal of Stomatology, 2010, 28(05): 517-521.
[13]	JIANG Fan1, YU Hai-yang2, XIAO Xiao-rong3, GAO Shan-shan2. The disinfection efficiency observation of a compound disinfectant spray on dental impression and plaster model [J]. West China Journal of Stomatology, 2010, 28(02): 170-173.
[14]	DING Wei-shan1, HUANG Ai-ling2, HU Yi-jun1, DU Zhao-xia1, WANG Duo1. The experimental research of the influence of cervical settling method on marginal accuracy of wax patter [J]. West China Journal of Stomatology, 2010, 28(02): 174-176.
[15]	YU Si-hua1, ZENG Li-wei1, WANG Hui2. Clinical evaluation of indirect post core by two different impression methods [J]. West China Journal of Stomatology, 2009, 27(03): 291-293.