Noninvasive method for retrieval of broken dental implant abutment screw

Dental implants made of titanium for replacement of missing teeth are widely used because of ease of technical procedure and high success rate, but are not free of complications and may fail. Fracturing of the prosthetic screw continues to be a problem in restorative practice and great challenge to remove the fractured screw conservatively. This case report describes and demonstrates the technique of using an ultrasonic scaler in the removal of the fracture screw fragment as a noninvasive method without damaging the hex of implants.

[1]  Bjarni E Pjetursson,et al.  A systematic review of the survival and complication rates of resin-bonded bridges after an observation period of at least 5 years , 2008, BDJ.

[2]  T. Traini,et al.  Sem and Fractography Analysis of Screw Thread Loosening in Dental Implants , 2007, International journal of immunopathology and pharmacology.

[3]  Ameen Khraisat,et al.  Stability of implant-abutment interface with a hexagon-mediated butt joint: failure mode and bending resistance. , 2005, Clinical implant dentistry and related research.

[4]  J. Wennström,et al.  Implant-supported single-tooth restorations: a 5-year prospective study. , 2005, Journal of clinical periodontology.

[5]  I. Nergiz,et al.  Removal of a fractured implant abutment screw: a clinical report. , 2004, The Journal of prosthetic dentistry.

[6]  C. Goodacre,et al.  Clinical complications with implants and implant prostheses. , 2003, The Journal of prosthetic dentistry.

[7]  L. G. Breault,et al.  Ailing and failing endosseous dental implants: a literature review. , 2003, The journal of contemporary dental practice.

[8]  S Winkler,et al.  The effect of implant diameter, restoration design, and occlusal table variations on screw loosening of posterior single-tooth implant restorations. , 2001, The Journal of oral implantology.

[9]  N. Lang,et al.  Biological and technical complications and failures with fixed partial dentures (FPD) on implants and teeth after four to five years of function. , 2001, Clinical oral implants research.

[10]  N. Lang,et al.  Fractured prosthetic abutments in osseointegrated implants: a technical complication to cope with. , 2000, Clinical oral implants research.

[11]  Y Akagawa,et al.  A biomechanical effect of wide implant placement and offset placement of three implants in the posterior partially edentulous region. , 2000, Journal of oral rehabilitation.

[12]  T. Griffin,et al.  Why do dental implants fail? Part II. , 1999, Implant dentistry.

[13]  T. Griffin,et al.  Why do dental implants fail? Part I. , 1999, Implant dentistry.

[14]  A. Piattelli,et al.  Light and scanning electron microscopic report of four fractured implants. , 1998, The International Journal of Oral and Maxillofacial Implants.

[15]  C. Hämmerle,et al.  Complication rate with prosthodontic reconstructions on ITI and IMZ dental implants , 1998 .

[16]  M. Behr,et al.  Complication rate with prosthodontic reconstructions on ITI and IMZ dental implants. Internationales Team für Implantologie. , 1998, Clinical oral implants research.

[17]  P Lockowandt,et al.  Comparison of strength and failure mode of seven implant systems: an in vitro test. , 1997, The Journal of prosthetic dentistry.

[18]  R. Jiménez.  Implant Prosthodontics: Clinical and Laboratory Procedures , 1994 .

[19]  G E Carlsson,et al.  Prosthodontic complications in osseointegrated dental implant treatment. , 1994, The International journal of oral & maxillofacial implants.

[20]  P. Branemark.  Osseointegration and its experimental background. , 1983, The Journal of prosthetic dentistry.