<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Rigid connectors between pontic and retainer are preferred way of fabricating fixed partial dentures for many decades as they provide desirable strength, retention and stability to the prosthesis. However, it is not ideal for cases such as lone-standing abutments (pier abutment), maligned teeth where occlusal stress can extrude the restoration. This may lead to marginal leakage and secondary caries on the abutment teeth. Conversely, it is recommended to use non-rigid connectors which act as a stress breaker, where the tensile stresses are concentrated on the surrounding bone and not on the connectors. With advancement in digital technology in dentistry, the non-rigid connectors can be fabricated using additive manufacturing technology. The present case report discusses the Direct Metal Laser Sintering (DMLS) designed fixed dental prosthesis with key and keyway (Tenon and Mortise) non-rigid connector for rehabilitation of pier abutment in maxillary posterior region.</p>
</abstract>

Rigid connectors between pontic and retainer are preferred way of fabricating fixed partial dentures for many decades as they provide desirable strength, retention and stability to the prosthesis. However, it is not ideal for cases such as lone-standing abutments (pier abutment), maligned teeth where occlusal stress can extrude the restoration. This may lead to marginal leakage and secondary caries on the abutment teeth. Conversely, it is recommended to use non-rigid connectors which act as a stress breaker, where the tensile stresses are concentrated on the surrounding bone and not on the connectors. With advancement in digital technology in dentistry, the non-rigid connectors can be fabricated using additive manufacturing technology. The present case report discusses the Direct Metal Laser Sintering (DMLS) designed fixed dental prosthesis with key and keyway (Tenon and Mortise) non-rigid connector for rehabilitation of pier abutment in maxillary posterior region.

Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report

Acta Marisiensis - Seria Medica

This work is licensed under the Creative Commons Attribution 4.0 International License.

Rigid connectors between pontic and retainer are preferred way of fabricating fixed partial dentures for many decades as they provide desirable strength,...

Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report

Published Online: Jan 07, 2023

Page range: 197 - 201

Received: Jul 20, 2022

Accepted: Dec 13, 2022

DOI: https://doi.org/10.2478/amma-2022-0033

Keywords
3D printing, direct metal laser sintering, fixed dental prosthesis, pier abutment, non-rigid connectors

© 2022 Manu Rathee et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report

Published Online: Jan 07, 2023

Page range: 197 - 201

Received: Jul 20, 2022

Accepted: Dec 13, 2022

DOI: https://doi.org/10.2478/amma-2022-0033

Keywords3D printing, direct metal laser sintering, fixed dental prosthesis, pier abutment, non-rigid connectors

© 2022 Manu Rathee et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
3D printing, direct metal laser sintering, fixed dental prosthesis, pier abutment, non-rigid connectors