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

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 wher...

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Main Authors: Rathee Manu, Divakar Santhanam, Jain Prachi, Singh Sandeep, Chahal Sujata, Tomar Sarthak Singh
Format: Article
Language:English
Published: Sciendo 2022-12-01
Series:Acta Marisiensis - Seria Medica
Subjects:
Online Access:https://doi.org/10.2478/amma-2022-0033
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author Rathee Manu
Divakar Santhanam
Jain Prachi
Singh Sandeep
Chahal Sujata
Tomar Sarthak Singh
author_facet Rathee Manu
Divakar Santhanam
Jain Prachi
Singh Sandeep
Chahal Sujata
Tomar Sarthak Singh
author_sort Rathee Manu
collection DOAJ
description 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.
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spelling doaj.art-5b925249aaf5488dbb446321e5929c1c2023-02-05T18:33:52ZengSciendoActa Marisiensis - Seria Medica2668-77632022-12-0168419720110.2478/amma-2022-0033Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case reportRathee Manu0Divakar Santhanam1Jain Prachi2Singh Sandeep3Chahal Sujata4Tomar Sarthak Singh5Department of Prosthodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, IndiaDepartment of Prosthodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, IndiaDepartment of Prosthodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, IndiaDepartment of Prosthodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, IndiaDepartment of Prosthodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, IndiaDepartment of Prosthodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, IndiaRigid 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.https://doi.org/10.2478/amma-2022-00333d printingdirect metal laser sinteringfixed dental prosthesispier abutmentnon-rigid connectors
spellingShingle Rathee Manu
Divakar Santhanam
Jain Prachi
Singh Sandeep
Chahal Sujata
Tomar Sarthak Singh
Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report
Acta Marisiensis - Seria Medica
3d printing
direct metal laser sintering
fixed dental prosthesis
pier abutment
non-rigid connectors
title Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report
title_full Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report
title_fullStr Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report
title_full_unstemmed Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report
title_short Digitally designed fixed dental prosthesis with stress breaking effect using non-rigid connector for pier abutment: A case report
title_sort digitally designed fixed dental prosthesis with stress breaking effect using non rigid connector for pier abutment a case report
topic 3d printing
direct metal laser sintering
fixed dental prosthesis
pier abutment
non-rigid connectors
url https://doi.org/10.2478/amma-2022-0033
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AT divakarsanthanam digitallydesignedfixeddentalprosthesiswithstressbreakingeffectusingnonrigidconnectorforpierabutmentacasereport
AT jainprachi digitallydesignedfixeddentalprosthesiswithstressbreakingeffectusingnonrigidconnectorforpierabutmentacasereport
AT singhsandeep digitallydesignedfixeddentalprosthesiswithstressbreakingeffectusingnonrigidconnectorforpierabutmentacasereport
AT chahalsujata digitallydesignedfixeddentalprosthesiswithstressbreakingeffectusingnonrigidconnectorforpierabutmentacasereport
AT tomarsarthaksingh digitallydesignedfixeddentalprosthesiswithstressbreakingeffectusingnonrigidconnectorforpierabutmentacasereport