A 3-D CAD/CAM technique in full-arch implant supported rehabilitations: the Virtual Implant-Prosthetic Procedure (VIPP Technique). A prospective longitudinal study

  • G. Gastaldi MD, DMD, Associate Professor, Dental School, Vita-Salute San Raffaele University, Milan, Italy and Unit of Oral and Maxillofacial Surgery, San Rocco Clinical Institute, Ome, Brescia, Italy, Italy.
  • E. Gherlone MD, DMD, Full Professor and Chairman, Dental School, Vita-Salute San Raffaele University, Milan, Italy and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy, Italy.
  • M. Manacorda DMD, Adjunct Professor, Dental School, Vita-Salute San Raffaele University, Milan, Italy and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy, Italy.
  • F. Ferrini DMD, Adjunct Professor, Dental School, Vita-Salute San Raffaele University, Milan, Italy and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy, Italy.
  • F. Bova DH, Adjunct Professor, Bachelor’s Degree in Dental Hygiene, Vita-Salute San Raffaele University, Milan, Italy and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy, Italy.
  • R. Vinci MD, DMD, Associate Professor, Dental School, Vita-Salute San Raffaele University, Milan, Italy and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy, Italy.
  • F. Cattoni DMD, Adjunct Professor, Dental School, Vita-Salute San Raffaele University, Milan, Italy and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy, Italy.

Abstract

ABSTRACT


 


Aim The purpose of this study is to evaluate the success of a new three-dimensional CAD/CAM processing technique in full-arch implant supported rehabilitations of edentulous patients.


Materials and methods Healthy patients with edentulous mandible and/or maxilla arch were selected for the present study. The Full-Arch Implant Supported Virtual Protocol has been applied with immediate loading fixed rehabilitation. Effectiveness of digital and surgical planning, marginal bone loss, implant and prosthetic failure were recorded at 6-and 12 months follow up.


Results Seventy-six implants were placed in 15 patients, and 15 full arch  rehabilitations were delivered. Patients found  smile design previsualization very effective (93%),  guided surgery very effective (94%), and  immediate loading and temporization very effective (92%). No implant were lost (survival rate = 100%). At the 6-months radiographic evaluation, average perimplant crestal bone loss was 0.56 ± 0.12 mm for maxillary implants (n = 64 ), 0.59 ± 0.16 for mandibular implants (n = 12 ) and 12-months average perimplant crestal bone loss was 0.67 ± 0.11 mm for maxillary implants (n = 64 ) and 0.69 ± 0.16 for mandibular implants (n = 12 ). Two unscrewing episodes and one provisional prosthesis fracture occurred. No paresthesia and no prosthetic complications in definitive prostheses were registered in the whole sample.


Conclusions Within the limitations of the present study, the Virtual Implant-Prosthetic Procedure could be a satisfactory treatment in edentulous patients.

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Published
2018-05-04
Section
Articles
Keywords
3-D CAD CAM technique, Full-arch rehabilitations, Implant-supported prostheses
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