A selective laser sintering prototype guide used to fabricate immediate interim fixed complete arch prostheses in flapless dental implant surgery: Technique description and clinical results

A selective laser sintering prototype guide used to fabricate immediate interim fixed complete arch prostheses in flapless dental implant surgery: Technique description and clinical results

Author Di Giacomo, Giovanni de Almeida Prado Autor UNIFESP Google Scholar
Cury, Patricia R. Google Scholar
da Silva, Airton M. Google Scholar
da Silva, Jorge V. L. Google Scholar
Ajzen, Sergio Aron Autor UNIFESP Google Scholar
Abstract Statement of problem. Extensive occlusal adjustments and misfit of the prosthesis to prosthetic components are frequent problems related to fixed interim prosthesis fabrication with immediate dental implant loading. Purpose. The purpose of this clinical trial was to evaluate a prosthetic guide made with a rapid prototype model based on virtual surgical planning. This prosthetic guide was used to fabricate fixed interim prostheses that would allow immediate implant loading after computer-guided implant installation. Material and methods. Nine interim prostheses were made for 9 participants with complete maxillary or mandibular edentulism. The virtual prosthetic guide was planned using computer assisted design (CAD) software and was fabricated with rapid prototyping equipment (selective laser sintering). The prosthetic guide had 3 portions: the occlusal portion, which had occlusal registration

the connection portion, which had the information of the position and angulation of the abutment/implant projection

and the mucosa portion, which had the registration of the alveolar mucosa architecture. The prosthetic guide was used by a dental technician to fabricate prostheses. A single trained examiner evaluated the passive fit of the interim prostheses, the average time required for installing the interim prosthesis and for occlusal adjustments, the satisfaction of the patient with the prosthesis

and the screws, torque, occlusion, and prosthesis status. Results. Passive fit was achieved between the prosthetic components and prostheses in 7 participants. The average time required for installing the fixed interim prostheses was 64.44 minutes. All participants reported being more pleased with the fixed interim prosthesis than with the prosthesis worn before implant placement. Prosthesis fractures were observed in 3 participants (2 in the maxilla and 1 in the mandible)

all fractures occurred 3 months or more after delivery. No further complication was observed during 6 months of follow-up. Conclusions. The prosthetic guide enabled fabrication of interim immediate prostheses that were easily seated and adjusted to accommodate any shifts in implant position occurring during computer-guided surgery. Immediate implant loading could be achieved in a reasonable operative time.
xmlui.dri2xhtml.METS-1.0.item-coverage New York
Language English
Date 2016
Published in Journal Of Prosthetic Dentistry. New York, v. 116, n. 6, p. 874-879, 2016.
ISSN 0022-3913 (Sherpa/Romeo, impact factor)
Publisher Mosby-Elsevier
Extent 874-879
Origin http://dx.doi.org/10.1016/j.prosdent.2016.04.018
Access rights Closed access
Type Article
Web of Science ID WOS:000389498300011
URI https://repositorio.unifesp.br/handle/11600/56638

Show full item record




File

File Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Search


Browse

Statistics

My Account