Comparative Evaluation of Compressive and Flexural Strengths of Two Resin-based Core Build-up Materials with an Alkasite Material: An In-vitro Approach | Chapter 7 | Medicine and Medical Research: New Perspectives Vol. 4

Aim: The present study compares and evaluates the compressive and flexural strengths of two resin-based core build-up materials with an alkasite material.

Background: Several dental materials have been used for core build-up procedures, some as direct and some as indirect, such as a custom cast post and core. The material used for direct core build-up was not specifically developed for this purpose but found applications in core build-up due to properties such as fluoride release, adhesion to the tooth structure, choice of curing mechanism, and better handling properties to name a few.

Materials and Methods: ParaCore®, Tetric® N-Ceram^TM Bulk-fill composite, and Cention N were used. A total of 90 specimens were prepared. Customized cylindrical split molds of dimension 6 ± 1 mm (height) × 4 ± 1 mm (diameter) were used to fabricate 15 samples of each core material for testing the compressive strength and rectangular split metal molds of dimensions 25 ± 1 mm (length) × 2 ± 1 mm (width) × 2 ± 1 mm (height) were used to fabricate 15 samples of each core material for testing the flexural strength. Then the samples were tested using a Universal testing machine (UTM). Data were analyzed using a statistical package for social sciences (SPSS) version 22.0 (SPSS Inc, Chicago IL). Mean values of the experimental groups were compared using one-way ANOVA (Analysis of variance) and intergroup comparisons were made based on Post hoc values from Tukey’s test, at a 5% level of significance (p ≤ 0.05).

Results: The compressive and flexural strengths of Cention N were significantly less than ParaCore® but higher than Tetric® N-Ceram^TM Bulk-fill core build-up material. The estimated p value for compressive strength was p = 0.013 and for flexural strength was p = 0.004. Compressive and flexural strength, Cention N exhibits lower microleakage, prevents the recurrence of caries (due to long-term release of fluoride, calcium, and hydroxyl ions), has proximal contact tightness, has a dual cure mechanism and possesses superior micro-hardness and fracture resistance properties.

Conclusion: Within the limitations of this study, it was concluded that Cention N can be used as an alternative to other core build-up materials.

Clinical Significance: Cention N had the added advantage that self-cure polymerization alone was sufficient to achieve good physical properties when compared to the other two resin-based core build-up materials.

 

Author (s) Details

Abirami Vaithiyalingam
Department of Prosthodontics and Crown & Bridge, Chettinad Dental College and Research Institute, Kelambakkam, Chennai, India.

 

Miriam Mathew
Department of Prosthodontics, P.S.M. College of Dental Science & Research, Thrissur, Kerala, India.

 

Srilekha Jayakumar
Department of Conservative Dentistry and Endodontics, Sri Venkateshwaraa Dental College and Hospital, Ariyur, Puducherry, India.

 

Karthikeyan Arumugam
Department of Conservative Dentistry and Endodontics, Sri Venkateshwaraa Dental College and Hospital, Ariyur, Puducherry, India.

 

Prashanth Ponnusamy
Department of Conservative Dentistry and Endodontics, Sri Venkateshwaraa Dental College and Hospital, Ariyur, Puducherry, India.

Thirupurasundari Narasimman
Department of Prosthodontist, Private Practitioner, Dhing, Assam, India.

Please see the book here:- https://doi.org/10.9734/bpi/mmrnp/v4/1716