Advertisement
Journal of Prosthetic Dentistry

A method of locating the abutment screw access channel with cone-beam computed tomography and a 3D-printed drilling guide

      Abstract

      In managing loose abutment screws, locating precisely the position of the screw access channel is difficult. This technique describes the use of cone-beam computed tomography (CBCT) and surgical guide planning software to locate the screw access channel with the intention of retrieving a loosened cement-retained implant-supported prosthesis. The method minimizes damage to the abutment crown assembly.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to Journal of Prosthetic Dentistry
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

        • Kreissl M.E.
        • Gerds T.
        • Muche R.
        • Heydecke G.
        • Strub J.R.
        Technical complications of implant supported fixed partial dentures in partially edentulous cases after an average observation period of 5 years.
        Clin Oral Implants Res. 2007; 18: 720-726
        • Pjetursson B.E.
        • Tan K.
        • Lang N.P.
        • Brägger U.
        • Egger M.
        • Zwahlen M.
        A systematic review of the survival and complication rates of fixed partial dentures (FPDs) after an observation period of at least 5 years.
        Clin Oral Implants Res. 2004; 15: 625-642
        • Brägger U.
        • Aeschlimann S.
        • Bürgin W.
        • Hämmerle C.H.
        • Lang N.P.
        Biological and technical complications and failures with fixed partial dentures (FPD) on implants and teeth after four to five years of function.
        Clin Oral Implants Res. 2001; 12: 26-34
        • Simon R.L.
        Single implant-supported molar and premolar crowns: a ten-year retrospective clinical report.
        J Prosthet Dent. 2003; 90: 517-521
        • Schwedhelm E.R.
        • Raigrodski A.J.
        A technique for locating implant abutment screws of posterior cement-retained metal-ceramic restorations with ceramic occlusal surfaces.
        J Prosthet Dent. 2006; 95: 165-167
        • Ahmed A.
        • Maroulakos G.
        • Garaicoa J.
        Acrylic resin guide for locating the abutment screw access channel of cement-retained implant prostheses.
        J Prosthet Dent. 2016; 115: 560-563
        • Tarlow J.L.
        A modified technique to locate the abutment screw access opening of a cemented implant-supported restoration.
        J Prosthet Dent. 2012; 108: 58-59
        • Hill E.E.
        A simple, permanent index for abutment screw access for cemented implant-supported crowns.
        J Prosthet Dent. 2007; 97: 313-314
        • Kang H.W.
        • Lee D.H.
        Using a guide template with a handpiece sleeve to locate the abutment screw position of a cement-retained implant restoration.
        J Prosthet Dent. 2015; 114: 339-342
        • Figueras-Alvarez O.
        • Cano-Batalla J.
        An alternative method for registering the abutment screw position of cement-retained implant restorations.
        J Prosthet Dent. 2014; 112: 1304-1305
        • Park J.I.
        • Yoon T.H.
        A three-dimensional image-superimposition CAD/CAM technique to record the position and angulation of the implant abutment screw access channel.
        J Prosthet Dent. 2013; 109: 57-60
        • Lee D.H.
        CAD/CAM-fabricated template for locating implant abutment screws in cement-retained anatomic zirconia restorations.
        J Prosthet Dent. 2015; 114: 343-345
        • Lee D.H.
        • Mai H.N.
        • Li L.J.
        • Lee K.W.
        Accuracy of a CAD/CAM-guided template for locating abutment screws for cement-retained implant-supported restorations.
        J Prosthet Dent. 2016; 116: 67-73
        • Patil P.G.
        A technique for repairing a loosening abutment screw for a cement-retained implant prosthesis.
        J Prosthodont. 2011; 20: 652-655
        • Wicks R.
        • Shintaku W.H.
        • Johnson A.
        Three-dimensional location of the retaining screw axis for a cemented single tooth implant restoration.
        J Prosthodont. 2012; 21 (149-3)
        • Roberts J.A.
        • Drage N.A.
        • Davies J.
        • Thomas D.W.
        Effective dose from cone beam CT examinations in dentistry.
        Br J Radiol. 2009; 82: 35-40