瓷材料种类及厚度对椅旁可切削全瓷冠遮色能力的影响

doi:10.7518/hxkq.2024.2023263

华西口腔医学杂志 ›› 2024, Vol. 42 ›› Issue (1): 56-61.doi: 10.7518/hxkq.2024.2023263

瓷材料种类及厚度对椅旁可切削全瓷冠遮色能力的影响

李思诺¹(), 张璐瑶², 梁珊珊³, 刘玉强⁴, 邢文忠²()

^1.湖北省妇幼保健院口腔科，武汉 430070
^2.大连市口腔医院·口腔修复科，大连 116021
^3.武汉大学口腔医院口腔修复科，武汉 430070
^4.大连市口腔医院·修复工艺科，大连 116021

收稿日期:2023-08-16 修回日期:2023-11-14 出版日期:2024-02-01 发布日期:2024-01-12
通讯作者: 邢文忠 E-mail:sinuo_li1996@163.com;xing_wenzhong@163.com
作者简介:李思诺，医师，硕士，E-mail：sinuo_li1996@163.com
基金资助:
辽宁省自然基金资助计划(2019-MS-074)

Effect of ceramic type and thickness on the masking ability of chairside machinable all-ceramic crowns

Li Sinuo¹(), Zhang Luyao², Liang Shanshan³, Liu Yuqiang⁴, Xing Wenzhong²()

^1.Dept. of Stomatology, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
^2.Dept. of Prosthodontics, Dalian Stomatological Hospital, Dalian 116021, China
^3.Dept. of Prosthodontics, Hospital of Stomatology Wuhan University, Wuhan 430070, China
^4.Dept. of Prosthodontic Technology, Dalian Stomatological Hospital, Dalian 116021, China

Received:2023-08-16 Revised:2023-11-14 Online:2024-02-01 Published:2024-01-12
Contact: Xing Wenzhong E-mail:sinuo_li1996@163.com;xing_wenzhong@163.com
Supported by:
Liaoning Provincial Natural Science Foundation Funding Program(2019-MS-074)

摘要/Abstract

摘要：

目的分析瓷材料种类及厚度对椅旁可切削全瓷冠透光性和遮色能力的影响。方法选择3类6种A2色调椅旁可切削陶瓷材料（IPS e.max CAD的HT型、MT型、LT型，IPS Empress的LT型和VITA Suprinity的HT型、T型），制备1.0、1.5、2.0 mm厚度的片状试样（n=10）。测色仪分别测量试样在黑、白瓷板和4种色调树脂基底（A2、A4、B3和C4色调）下的色度参数，计算试样的透光度（TP）值以及试样在A4、B3和C4色调基底与A2色调基底（对照组）之间的色差（ΔE）值。双因素方差分析评价瓷材料种类及厚度对试样TP值的影响，三因素方差分析评价瓷材料种类、试样厚度和基底色调对试样ΔE值的影响，Tukey HSD检验多重比较组间差异（α=0.05）。结果瓷材料TP值在不同材料和厚度之间的差异有统计学意义（P<0.001），瓷材料种类、试样厚度及基底色调对试样ΔE值的影响均有统计学意义（P<0.001），试样的L*和b*值随着厚度增加而增加（除外A2色调基底），而ΔE值则减少。当试样厚度为1.0 mm或基底为C4色调时，所有试样ΔE值均高于临床可接受的色差阈值（ΔE>3.3）。结论椅旁可切削全瓷冠遮色能力受到瓷材料种类和厚度的影响，小于2.0 mm厚度的瓷材料不能遮盖灰色基牙颜色。

关键词: 椅旁可切削陶瓷, 全瓷冠, 遮色能力, 树脂背景, 色差

Abstract:

Objective This study aimed to evaluate the influence of ceramic type and thickness on the masking ability and final aesthetic effects of chairside machinable all-ceramic crowns. Methods Six kinds from three types chairside machinable ceramic materials (IPS e.max CAD HT/MT/LT, IPS Empress LT, and VITA Suprinity HT/T) in shade A2 were fabricated to slice specimens into 1.0, 1.5, and 2.0 mm-thick sections (n=10). The color parameters of the specimens against black and white tiles and four resin substrates (A2, A4, B3, and C4 shade) were measured with a spectrophotometer. The translucency parameter (TP) was calculated using color parameters measured over standard white and black backgrounds. The color differences (ΔE) were calculated between there substrate shades (A4, B3, C4 ) and A2 shade (control group). Two-way analysis of variance (ANOVA) was performed on the TP values. The two va-riables were ceramic type and ceramic thickness. Three-way ANOVA was used to determine the effects of ceramic materials, ceramic thickness, and substrate shades on the ΔE values, followed by Tukey test for multiple comparisons (α=0.05). Results Ceramic type, ceramic thickness, and substrate shade significantly affected the ΔE values (P<0.001). The L* and b* values of the specimens increased with increasing ceramic thickness, except in substrate A2, whereas the ΔE values decreased. The color difference of all 1.0 mm-thick specimens or all specimens over the substrates C4 shade exceeded the clinically acceptable threshold (ΔE>3.3). Conclusion The masking ability of chairside machinable all-ceramic crowns is influenced by ceramic type and thickness, and ceramic material. The thickness of ceramic less than 2.0 mm cannot mask the gray shade abutment.

Key words: chairside machinable ceramic, all-ceramic crown, masking ability, resin background, color diffe-rence

中图分类号:

R783.1

李思诺, 张璐瑶, 梁珊珊, 刘玉强, 邢文忠. 瓷材料种类及厚度对椅旁可切削全瓷冠遮色能力的影响[J]. 华西口腔医学杂志, 2024, 42(1): 56-61.

Li Sinuo, Zhang Luyao, Liang Shanshan, Liu Yuqiang, Xing Wenzhong. Effect of ceramic type and thickness on the masking ability of chairside machinable all-ceramic crowns[J]. West China Journal of Stomatology, 2024, 42(1): 56-61.

图/表 5

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参考文献 19

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商品名	材料简称	瓷材料种类	主要成分	厂家
IPS e.max CAD HT型	LD-HT	二硅酸锂基切削陶瓷	57%~80%SiO₂、11%~19%Li₂O，晶粒大小0.2~2.0 μm	义获嘉伟瓦登特
IPS e.max CAD MT型	LD-MT
IPS e.max CAD LT型	LD-LT
IPS Empress CAD LT型	LR-LT	白榴石增强切削陶瓷	60%~65%SiO₂、16%~20%Al₂O₃、10%~14%K₂O，晶粒大小1~5 μm	义获嘉伟瓦登特
VITA Suprinity HT型	ZLS-HT	氧化锆加强型硅酸锂基切削陶瓷	8%~12%ZrO₂、56%~64%SiO₂、15%~21%Li₂O，平均晶体直径0.5 μm	Vita
VITA Suprinity T型	ZLS-T	氧化锆加强型硅酸锂基切削陶瓷	8%~12%ZrO₂、56%~64%SiO₂、15%~21%Li₂O，平均晶体直径0.5 μm	Vita

材料简称	试样厚度			F值	P值
材料简称	1.0 mm	1.5 mm	2.0 mm	F值	P值
LD-HT	39.72（0.63）^aA	33.64（0.64）^aB	28.98（0.91）^aC	536.317	0.000
LD-MT	37.12（1.23）^bA	31.09（1.88）^bB	24.22（0.61）^bC	231.222	0.000
LD-LT	33.29（0.69）^cA	25.37（1.47）^cB	20.48（1.41）^cC	270.828	0.000
LR-LT	36.31（1.07）^bA	29.37（1.62）^bB	22.87（0.91）^dC	294.252	0.000
ZLS-HT	32.54（1.04）^cA	24.58（0.98）^cB	18.82（0.83）^eC	517.253	0.000
ZLS-T	23.50（0.40）^dA	17.32（1.52）^dB	10.56（0.48）^fC	467.573	0.000
F值	402.124	168.840	465.339
P值	0.000	0.000	0.000

材料简称	1.0 mm			1.5 mm			2.0 mm
材料简称	ΔE_A4	ΔE_B3	ΔE_C4	ΔE_A4	ΔE_B3	ΔE_C4	ΔE_A4	ΔE_B3	ΔE_C4
LD-HT	6.85±0.62^a	4.94±0.97^a	12.29±0.42^a	5.86±0.32^a	4.01±0.26^a	10.42±0.31^a	4.78±0.35^a	3.39±0.34^a	8.69±0.32^a
LD-MT	6.63±0.71^ab	4.52±0.58^ab	11.62±0.61^ab	5.41±0.47^ab	3.85±0.40^ab	9.68±0.75^ab	4.08±0.15^b	2.94±0.15^b	7.21±0.33^b
LD-LT	5.96±0.54^b	4.21±0.39^b	10.63±0.76^c	4.56±0.52^c	3.14±0.23^c	7.93±0.84^c	3.29±0.28^c	2.61±0.19^c	6.03±0.40^c
LR-LT	6.56±0.21^ab	4.61±0.19^ab	11.52±0.39^b	5.20±0.27^b	3.77±0.30^b	9.06±0.53^b	4.04±0.24^b	2.98±0.13^b	6.84±0.30^b
ZLS-HT	4.61±0.61^c	4.04±0.46^c	9.26±0.65^d	4.45±0.37^c	3.17±0.24^c	7.61±0.67^c	3.05±0.25^c	2.32±0.37^c	5.36±0.27^d
ZLS-T	4.08±0.30^c	3.42±0.42^c	7.25±0.60^e	2.94±0.47^d	2.54±0.59^d	5.28±0.63^d	2.04±0.41^d	1.84±0.26^d	3.71±0.41^e
F值	36.632	11.828	70.939	38.313	12.551	52.901	102.787	31.413	139.967
P值	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000

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瓷材料种类及厚度对椅旁可切削全瓷冠遮色能力的影响

Effect of ceramic type and thickness on the masking ability of chairside machinable all-ceramic crowns

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