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Journal of Prosthetic Dentistry
Tips from Our Readers| Volume 123, ISSUE 5, P772-774, May 2020

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Complete-arch implant impression technique for capturing the acquired soft-tissue profile

  • Jingjing Shao
    Affiliations
    Postgraduate student, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, PR China
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  • Lei Li
    Correspondence
    Corresponding author: Dr Lei Li, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, No 14, Sec.3, Renminnan Road, Chengdu 610041, PR CHINA
    Affiliations
    Associate Professor, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, PR China
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      Implant impression techniques can be classified as either pick-up or transfer. Pick-up impression techniques, also known as open-tray impression techniques, can be subdivided into splinted and nonsplinted techniques.
      • Papazoglou E.
      • Wee A.G.
      • Carr A.B.
      • Urban I.
      • Margaritis V.
      Accuracy of complete-arch implant impression made with occlusal registration material.
      Splinting transfer copings with acrylic resin effectively resist translation and rotation of the transfer copings within a complete-arch implant impression.
      • Kim K.R.
      • Seo K.
      • Kim S.
      Conventional open-tray impression versus intraoral digital scan for implant-level complete-arch impression.
      By modifying the contours of the interim restoration, the clinician can shape the peri-implant soft tissue for an esthetic result. However, the soft-tissue profile has been shown to change rapidly after removal of the interim restoration.
      • Li J.
      • Chen Z.
      • Wang M.
      • Wang H.
      • Yu H.
      Dynamic changes of peri-implant soft tissue after interim restoration removal during a digital intraoral scan.
      ,
      • Duran J.C.
      • Aguirre F.
      • Pino R.
      • Velasquez D.
      Dimensional variations in the soft tissue profile after removal of implant-supported fixed interim restorations: a pilot clinical study.
      The custom implant impression coping technique is commonly used to record this essential information of a single implant.
      • Vasconcellos F.
      • Proussaefs P.
      A novel technique for replicating the profile of an interim implant-supported single crown on the definitive prosthesis.
      Duplicating the soft-tissue profile around a well-contoured complete-arch implant-supported interim restoration remains a challenge (Fig. 1). In this tip, the soft-tissue profile was captured in a complete-arch implant impression with a custom splint.
      Figure thumbnail gr1
      Figure 1A, Intraoral view of complete-arch implant-supported interim restoration. B, Well-contoured soft-tissue profile.
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      References

        • Papazoglou E.
        • Wee A.G.
        • Carr A.B.
        • Urban I.
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        Accuracy of complete-arch implant impression made with occlusal registration material.
        J Prosthet Dent. 2019; 123: 143-148
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        • Seo K.
        • Kim S.
        Conventional open-tray impression versus intraoral digital scan for implant-level complete-arch impression.
        J Prosthet Dent. 2019; 122: 543-549
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        • Chen Z.
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        Dynamic changes of peri-implant soft tissue after interim restoration removal during a digital intraoral scan.
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        Dimensional variations in the soft tissue profile after removal of implant-supported fixed interim restorations: a pilot clinical study.
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        • Vasconcellos F.
        • Proussaefs P.
        A novel technique for replicating the profile of an interim implant-supported single crown on the definitive prosthesis.
        J Oral Implantol. 2016; 42: 437-441