Objectives: The present study was conducted to evaluate the optimal method of enhancing the bond strength of a composite resin to the facial surface of the primary anterior stainless steel crowns using various surface treatments namely Nd: YAG laser surface treatment, sandblasting , alloy primer application and no surface treatment. Study Design: The study sample consisted of 60 primary anterior stainless steel crowns (UnitekTM size R 4), with 15 samples randomly divided into the 4 study groups, embedded in acrylic blocks. The facial surface of these surface treated crowns was utilized as the bonding surface to which 2.5mm diameter composite resin cylinders were bonded for the evaluation of the shear bond strength. Shear bond strength measurements were made using a universal testing machine utilizing a shearing blade (jig).The mode of failure at composite-metal interface was determined using a Stereomicroscope at 10 X magnification. Results: The mean bond strength values obtained for surface treatment of Nd: YAG laser surface treated, Sandblasting ,Alloy Primer and No surface treatments were 17.01±.92 , 13.18 ± .73, 7.46 ± .70 and 7.33 ± .77 MPa respectively. The obtained bond strength values were subjected to a one way ANOVA and a Scheffe’s post-hoc comparison test. The results of the present study indicated that Laser surface treatment of the facial surface of the crowns enhanced the bond strength of the composite resin significantly compared to the other groups. Conclusions: Nd: YAG laser surface treatment produced an excellent surface roughness and obtained the highest shear bond strength values suggestive for recommendation as an optimal surface treatment to be used to enhance the resin-metal bond at the interface of the composite resin and the facial surface of primary anterior stainless steel crowns for the purpose of chairside veneering. Key words:Nd: YAG laser treatment, Sandblasting, Primary anterior stainless steel crown, Chairside veneering, Enhancing Resin-Metal Bond, Early childhood caries, Shear bond strength (SBS).
Special attention should be paid to the pediatric patients with such kind of behavior so that their psy-chosocial attitude could be modified in favor of dental treatment.
Dental anxiety is a common problem that affects people of all ages and appears to develop mostly in childhood and adolescence. Dental anxiety in children has been recognized as a problem in patient management for many years. It is important that dentists are able to assess dental anxiety in child patients as early as possible so that they may identify patients who are in special need with regards to their fear. Age, gender and socioeconomic status play an important role as determining factors in dental anxiety, hence should be considered while measuring dental anxiety. Materials and Methods: A randomized control study was conducted in 4 to 8 years old children using two scales. A list of children from 14 schools in Gautam Budh Nagar district (U.P.) was collected and 1025 children were randomly selected. The children were asked about how they feel when they visit a dentist, by VPT and FIS separately their role with gender, age and socioeconomic was evaluated. Aim: To do comparative evaluation of role of gender, age and socioeconomic status on perceived dental anxiety of 4 to 8 years old children using two scales. Results: Among 1025 children, 532(51.9%) were males and 493 (48.1%) were females. Age wise comparison of both scales score revealed that mean FIS score was statistically significant and higher than mean VPT scale among 7 and 8 year age groups. Among 4, 5 and 6 year age group, no statistically significant difference was found between two scales. Conclusion: Dental anxiety is found to increase with increasing age. Females had a similar level of anxiety as compared to males and Children from low SES had a high level of dental anxiety than children from high SES.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.