EVALUATION OF BOND STRENGTH ON SURFACE TREATED DENTURE TEETH TO INJECTION MOLDED PMMA DENTURE BASE

被引：0

作者：

ShanmugaSundaram, Lokesh ^{[1
]}

Jeyaraj, Brintha Jei ^{[2
]}

Krishnan, Murugesan ^{[2
]}

Balasubramanian, Muthukumar ^{[2
]}

机构：

[1] SRM Dent Coll, Dept Prosthodont & Crown & Bridge, Ramapuram, Chenna, India

[2] SRM Dent Coll, Dept Prosthodont & Crown & Bridge, Chennai, Tamil Nadu, India

来源：

ANNALS OF DENTAL SPECIALTY | 2021年 / 9卷 / 01期

关键词：

Diatoric cavity; Injection molding technique; High impact resin; Ridge lap surface; Sandblasting; ACRYLIC RESIN TEETH; ARTIFICIAL TEETH; TOOTH;

D O I：

暂无

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This study aimed at comparing the shear bond strength between high-impact injection-molded denture base and ridge lap surface-treated PMMA teeth. A total of 51 samples were scribed with a black line 1mm above the ridge lap area. Samples were grouped into Group A as the control group, Group B sandblasted ridge lap samples, and Group C with diatoric cavity ridge lap samples. Then, the samples were placed in a mold of dimension 7.5x7.5mm. The wax patterns were processed through injection molding and the retrieved samples were subjected to shear bond strength assessment in a Universal testing machine. The mean shear bond strength of Groups A, B, and C was 991.29, 1038.71, & 1187.41, respectively with a p-value of 0.010. A statistically significant difference was observed between Group C and Group A (P>0.05). The obtained values were analyzed statistically with post hoc and one-way ANOVA tests using SPSS statistical software 17. This study concluded that the samples of Group C exhibited higher shear bond strength because the surface area of the ridge lap portion increases with diatoric cavity preparation.

引用

页码：7 / 12

页数：6

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