Immediate provisionalization with a CAD/CAM interim abutment and crown: A guided soft tissue healing technique

https://doi.org/10.1016/j.prosdent.2014.09.003Get rights and content

Abstract

A technique is described in which a single interim abutment and crown were fabricated in advance and placed the day of dental implant surgery. The contours of the interim crown were identical to the contours of a tentatively designed definitive prosthesis and allowed the tissue to heal and obtain contours that accommodated the contours of the definitive prosthesis. After osseointegration was established, a definitive impression was made with a custom computer-assisted design and computer-assisted manufacturing impression coping. The definitive prosthesis then was fabricated.

Section snippets

Technique

  • 1.

    Evaluate the tissue around the edentulous area for signs or symptoms of pathosis (Fig. 1). Make complete arch preliminary impressions preoperatively from the patient’s maxillary and mandibular arches by using polyvinyl siloxane impression material (Silgimix; Sultan Healthcare). Make an interocclusal record with polyvinyl siloxane occlusal registration material (Exabite II NSD; GC America Inc) at the maximum intercuspation position. In addition, after providing local anesthesia, map the alveolar

Discussion

Placement of an interim restoration on the day of implant surgery offers esthetic, psychological, and functional advantages compared with the use of an interim removable prosthesis. It also eliminates second-stage surgery, which reduces patient discomfort and additional procedural cost. The soft tissue around the implants can heal according to the contours of the interim restoration.11, 13, 14, 28, 29 However, if the interim restoration is placed after the implant becomes osseointegrated, then

Summary

The described technique offers an alternative method for fabricating interim restorations on dental implants. A prospective clinical study is needed to validate the use of the described technique.

References (41)

  • V. Bruno et al.

    Preserving soft tissue after placing implants in fresh extraction sockets in the maxillary esthetic zone and a prosthetic template for interim crown fabrication: a prospective study

    J Prosthet Dent

    (2014)
  • K. Noh et al.

    Accurate transfer of soft tissue morphology with interim prosthesis to definitive cast

    J Prosthet Dent

    (2014)
  • W.S. Lin et al.

    Use of implant-supported interim restorations to transfer periimplant soft tissue profiles to a milled polyurethane definitive cast

    J Prosthet Dent

    (2013)
  • Y. Man et al.

    An alternative technique for the accurate transfer of periimplant soft tissue contour

    J Prosthet Dent

    (2013)
  • J.S. Kim et al.

    In vitro assessment of three types of zirconia implant abutments under static load

    J Prosthet Dent

    (2013)
  • T. Jemt et al.

    Osseointegrated implants in the treatment of partially edentulous patients: a preliminary study of 876 consecutively installed fixtures

    Int J Oral Maxillofac Implants

    (1989)
  • M.S. Moscovitch et al.

    The use of a provisional restoration in implant dentistry: a clinical report

    Int J Oral Maxillofac Implants

    (1996)
  • N.J. Capp

    The diagnostic use of provisional restorations

    Restorative Dent

    (1985)
  • S. Saba

    Anatomically correct soft tissue profiles using fixed detachable provisional implant restorations

    J Can Dent Assoc

    (1997)
  • M.A. Listgarten et al.

    Periodontal tissues and their counterparts around endosseous implants

    Clin Oral Implants Res

    (1991)
  • Cited by (39)

    • Fabrication of a CAD-CAM custom healing abutment guided by a conventional dental radiograph for delayed loaded dental implants: A dental technique

      2022, Journal of Prosthetic Dentistry
      Citation Excerpt :

      CAD-CAM technology enables dentists and dental laboratory technicians to design and fabricate implant dentistry components that had previously only been available from implant manufacturers, for example, custom abutments, impression copings, and healing abutments.6,8-10

    • Design and fabrication of a fixed implant-supported interim restoration from a dynamic navigation virtual plan

      2020, Journal of Prosthetic Dentistry
      Citation Excerpt :

      It also eliminates the need to outsource any part of the preoperative planning if the facility is not equipped with a method for guide fabrication. Other reports have been published on using CAD-CAM technology to design and fabricate interim implant-supported restorations.3,11-13 The present workflow builds upon these articles and uses recently introduced digital dental technology to complete the implant surgery in an accurate manner, which allows a prefabricated interim restoration to be inserted with minimal adjustment.

    View all citing articles on Scopus
    View full text