This factor plays an important role in the potential for failure in long-span FPD. 3rd Edn. Precision Attachments: A Link to Successful Restorative Treatment, Attachments for Prosthetic Dentistry: Introduction and Application, Attachments for prosthetic dentistry: Introduction & application. Contemp Clin Dent. Routine oral prophylactic procedures were carried out. The design and passive fit of NRC is critical to the success of a long-span FPD. The tooth preparation for the abutments was completed with certain special considerations as they were rotated following which a shoulder finish line was prepared at the gingival level. These are usually indicated when it is impossible to prepare a common path of insertion for the abutment preparations for an FPD RIGID CONNECTORS Rigid connections in metal can be made by casting, soldering, welding. metal FPD with a rigid connector distal to upper right canine & a non-rigid connector distal to upper maxillary 2nd premolar was planned. Shillingburg HT Jr, Fisher DW. Gingival retraction was achieved with the application of Expasyl, Tray adhesive was applied over the special tray and a medium viscosity elastomer was loaded into the tray.A low viscosity elastomer was syringed over the prepared tooth surface and the tray with the impression material was seated over the prepared tooth surface. [8] {2006} studied the mechanical interaction of various systems of tooth-implant rigid and non-rigid connections using a non-linear 2D finite element analysis. Advertisers Access Statistics Resources. Mock tooth preparation was completed on the articulated casts to fabricate provisional restoration. A nonrigid connector may be preferred in fabrication of fixed partial denture (FPD) with pier abutment. Three types of FPDS made of type III gold alloy were fabricated: (1) Non-rigid connector at the distal aspect of the second premolar, (2) non-rigid connector at the distal aspect of the canine, and (3) all-rigid connectors. Connectors may be rigid (solder joints or cast connector) or nonrigid. It has contributed a huge number of peer reviewed articles, across a spectrum of medical disciplines, to the medical literature. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. Connectors are the part of a FPD that unite the retainers and pontics. The non-rigid connector act as stress breaker between retainer and pontic instead of usual rigid connector. google_color_url = "000000"; 2011, 2:351-354. MATERIAL AND METHODS: A 3D FE FPD model was constructed containing one Frialit-2 implant in the mandibular second-molar region splinted to the first and second premolars. Although rigid connectors are most commonly fabricated, in some situations like using pier abutment, NRCs are indicated. Material and methods. google_color_link = "cc6601"; On the same day, provisional acrylic resin bridges were cemented using Relyx Temp. If rigid connectors are used in this situation, the pier abutment will act as a fulcrum because of physiologic tooth movement, arch position of the abutment, and the retentive capacity of the retainers. In an FPD requiring the restoration of two missing teeth and where an intermediate pier abutment is present with a single casting (rigid connectors) is not an ideal treatment. Banerjee S, Khongshei A, Gupta T, Banerjee A: Non-rigid connector: the wand to allay the stresses on abutment. 1 Department of Prosthodontics and Oral Implantology, Shree Bankey Bihari Dental College and Research Centre, Ghaziabad, India2 Department of Prosthodontics and Oral Implantology, Dental College, Azamgarh, Uttar Pradesh, India3 Department of Conservative Dentistry and Endodontics, IDST Dental College, Modinagar, Ghaziabad, India4 Department of Oral Pathology, Swami Devi Dyal Hospital and Dental College, Panchkula, Haryana, India, Correspondence Address:Prince KumarDepartment of Prosthodontics and Oral Implantology, Shree Bankey Bihari Dental College and Research Centre, Masuri, N. H. 24, Ghaziabad,Uttar Pradesh IndiaSource of Support: None, Conflict of Interest: NoneCheckDOI: 10.4103/2278-344X.105086 function RightsLinkPopUp () { var url = "https://s100.copyright.com/AppDispatchServlet"; var location = url + "?publisherName=" + encodeURI ('Medknow') + "&publication=" + encodeURI ('IJHA') + "&title=" + encodeURI ('Non-rigid connector in fixed partial dentures with pier abutment: An enigma simplified') + "&publicationDate=" + encodeURI ('Jul 1 2012 12:00AM') + "&author=" + encodeURI ('Kumar P, Singh V, Goel R, Singh HP') + "&contentID=" + encodeURI ('IntJHealthAlliedSci_2012_1_3_190_105086') + "&orderBeanReset=true" Non-rigid connector in fixed partial dentures with pier abutment: An enigma simplified Results : Von Misses stresses were observed at the connector region between the two pontics, especially in the cervical region. Disclaimer. 10.4103/0976-237X.91802 You are currently offline. Stress analysis of effect of non rigid connectors on fixed partial dentures with pier abutments. google_color_bg = "FFFFFF"; The non-rigid connector counterbalances the effects of these forces of leverage. The soldered connectors are made by fusion of intermediate metal alloy to the previously made castings. Connector Bar Connector Bars may be indicated to brace individual Retainer/Abutment teeth with considerable coronal length for enhanced stabilization of removable partial dentures, complete dentures and overdentures. Akulwar RS, Kodgi A. J Clin Diagn Res, 8(7):ZD12-3, 20 Jul 2014 Cited by: 2 articles | PMID: 25177650 | … Connectors may be rigid (solder joints or cast connector) or nonrigid. The occlusal forces applied to a fixed partial denture (FPD) are transmitted to the supporting structures through the pontic, connectors, and retainers. CONNECTOR The portion of an FPD that unites the retainer(s) and pontic(s). The frequent use of rigid connectors in day to day practice in such situations results in failure and instability of the prosthesis. Keywords: Connector, non-rigid connector, pier abutment, stress concentration, , https://www.ijhas.in/text.asp?2012/1/3/190/105086, Rosensteil SF, Land MF, Fujimoto J. PARTS OF FIXED PARTIAL DENTURE RETAINER ABUTMENT PONTIC CONNECTOR Connectors The portion of a fixed dental prosthesis that unites the retainer(s) and pontics Connectors are those parts of a fixed partial denture(FPD) that join the individual retainers and ponticstogether. A, The anterior abutment and the pontic are connected with a rigid cast connector.These two partial FDP components are fabricated separately from the posterior abutment, which is cast in gold. To accommodate the space for mortis, 0.75 to 1 mm of an extra amount of preparation was done on the distal aspect of the pier abutment. This clinical report presents the use of a non-rigid connector in a long-span, five-unit FPD, replacing two missing teeth with an intermediate pier abutment. By constructing bridges with a non-rigid connector, this stress can be decreased. Lin CL et al . The cast connectors are to be properly shaped in wax patterns. This techno-clinical cycle often causes failure of the fixed partial dentures. Fundamentals of fixed prosthodontics, 3. Markley (1951) suggested that non rigid connector should be placed at one of the terminal retainers. The movement in a non-rigid connector is enough to prevent the transfer of stress from segment being loaded to the rest of the FPD. The non-rigid connector counterbalances the effects of these forces of leverage. The occlusal forces applied to a fixed partial denture (FPD) are transmitted to the supporting structures through the pontic, connectors, and retainers.