Work

Evaluation of Strength of Different Crowns In Rehabilitation of Mandibular Posterior Regions: A Comparative Study

Year: 2025

Type: article

Abstract: A BSTRACT Objective: To evaluate the strength of different crown materials used in the rehabilitation of mandibular posterior regions and to compare their performance under realistic conditions. Methods: A total of 90 crowns made from three materials—zirconia, lithium disilicate, and metal-ceramic—were tested using compressive load testing. Crowns were placed on standardized resin dies simulating mandibular molars and subjected to cyclic loading and fracture strength assessment. Results: Zirconia crowns exhibited the highest fracture resistance, followed by metal-ceramic and lithium disilicate crowns. Statistically significant differences were observed between the groups ( P < 0.05). Conclusions: Zirconia crowns offer superior strength, making them ideal for mandibular posterior rehabilitation. However, the choice of material should also consider aesthetic requirements and patient-specific factors.

Source: Journal of Pharmacy And Bioallied Sciences

DOI: 10.4103/jpbs.jpbs_556_25

Authors: Mohammad A. Lone, Balwinder Kumar, Sukumar Ragutla, Sukarnnshree Swabhimaan, V. S. Deepasri, Aryaman Dogra

Institutions: KIIT University, Government of Himachal Pradesh

Language: English

Topic: Dental materials and restorations

Subfield: Orthodontics

Field: Dentistry

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $250