An Investigation of the Fracture Loads Involved in the Framework of Removable Partial Dentures Using Two Types of All-Ceramic Restorations

Fahad Hussain Alhamoudi; Lujain Ibrahim N Aldosari; Abdulkhaliq Ali F Alshadidi; Saeed Awod Bin Hassan; Maram Ali M Alwadi; Sunil Kumar Vaddamanu; Marco Cicciù; Giuseppe Minervini

doi:10.3390/biomimetics8010113

An Investigation of the Fracture Loads Involved in the Framework of Removable Partial Dentures Using Two Types of All-Ceramic Restorations

Biomimetics (Basel). 2023 Mar 9;8(1):113. doi: 10.3390/biomimetics8010113.

Authors

Fahad Hussain Alhamoudi¹, Lujain Ibrahim N Aldosari², Abdulkhaliq Ali F Alshadidi¹, Saeed Awod Bin Hassan³, Maram Ali M Alwadi⁴, Sunil Kumar Vaddamanu¹, Marco Cicciù⁵, Giuseppe Minervini⁶

Affiliations

¹ Dental Technology Department, College of Applied Medical Science, King Khalid University, Abha 61421, Saudi Arabia.
² Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha 61421, Saudi Arabia.
³ Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha 61421, Saudi Arabia.
⁴ Dental Health Department, College of Applied Medical Science, King Saud University, Riyadh 11451, Saudi Arabia.
⁵ Department of General Surgery and Medical-Surgical Specialties, School of Dentistry, University of Catania, 95124 Catania, Italy.
⁶ Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania "Luigi Vanvitelli", 80121 Naples, Italy.

Abstract

Retention and support are needed for removable partial denture stability. The stability can be achieved by clasps, occlusal and cingulum rests on healthy abutment teeth. However, implants or crowns can be used to support the removable partial denture instated on unhealthy abutment teeth. This study was conducted to investigate the fracture strength of two types of all-ceramic restorations used as abutments for the removable partial denture framework. The crowns were manufactured with two types of ceramic materials: zirconia and IPS e.max Press ceramics. The metal alloy (cobalt-chrome) was cast to form the removable partial denture framework. A universal testing machine was used to evaluate the fracture strength of both ceramic crown materials. The results presented no fractures in all-ceramic crowns, but deformation of the partial denture frameworks occurred. With the limitation of this study, it can be concluded that zirconia and IPS e.max Press ceramic can be used as abutments to provide adequate support to the removable partial denture.

Keywords: ceramic crowns; fracture strength; removable partial denture.

Grants and funding

The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University, Abha, Saudi Arabia, for funding this work through the large group program number GPR/37/43.