Cic edizioni internazionali
Annali di stomatologia

Implant adaptation of stock abutments versus CAD/CAM abutments: a radiographic and
Scanning Electron Microscopy study

Research Article, 9 - 13
Tag this article
Abstract
Full text PDF
Introduction. The study evaluated a null-hypothesis of no differences of fit between stock abutments and CAD/CAM titanium, gold sputtered and zirconia abutments when examined for radiographic adaptation and Scanning Electron Microcopy (SEM) at their inner aspect. The agreement between microscopic and radiographic fit was also assessed.
Methods. Implants (Osseospeed, Astra Tech, Mölndal, Sweden) were connected to titanium abutments (Ti-design, Astra Tech, Mölndal, Sweden) (control group n=12), to stock zirconia abutments (Zir-design, Astra Tech) (group 1 n=12) and to third party zirconia abutments (Aadva Zr abutment, GC, Tokyo, Japan) as observed under SEM (JEOL JSM-6060LV, Tokyo, Japan). Two independent operators blindly evaluated the images, according to a three-score scale: perfect adaptation, no complete adaptation, and clear evidence of no adaptation. A Kruskal-Wallis test was applied to assess significant differences in adaptation scores between the groups.
Results. All specimens showed precise SEM adaptation at all tested interfaces and no radiographically apparent gaps. No significant differences were found and therefore the null-hypothesis tested was accepted. Radiographic and SEM scores were in agreement.
Discussion. CAD/CAM titanium, gold sputtered and zirconia abutments and third-part CAD/CAM zirconia abutments show an adaptation to Astra Tech implants that is comparable to that of stock titanium and zirconia abutments. Clinicians might be able to verify such adaptation with an x-ray. In-vivo studies would be needed to evaluate the clinical outcome of CAD/CAM abutments.

Vol. 9 (No. 3) 2018 September - December

  1. Temporomandibular disorders and cervical spine: a systematic review
    Chisari E., Buccheri E., Cubisino G., D'Arma F., Catania E., Di Paolo C., Cascone P.
  2. Surgical management of acute retrograde peri-implantitis: a review of current literature
    Di Murro B., Papi P., Pompa G.
  3. Clinical efficacy of systemic antibiotics as an adjunctive therapy to one stage full mouth disinfection (OSFMD) and full-mouth scaling and root planning in the treatment of chronic periodontitis: a systematic review of randomised clinical trials
    Elhassan E., Vozza I., Quaranta A.
  4. Microhardness and cervical microleakage of healthy and periodontally involved dentin at class II cavities restored with conventional and bulk-fill resin composites
    Moosavi H., Majidinia S., Banihashem Rad S.A., Jafari Giv M., Namdar F.
  5. A rare case of intraparotid facial nerve schwannoma
    Ungari C., Gualtieri M., Riccardi E., Filiaci F., Cerbelli B.
  6. A multidisciplinary team for the management of oral cancer: a project called MoMax
    Romeo U., Tenore G., Cassoni A., Rocchetti F., Mohsen A., Pompa G., Valentini V., Polimeni A.
Last Viewed articles: la lista degli ultimi x visitati.
  1. Implant adaptation of stock abutments versus CAD/CAM abutments: a radiographic and
    Scanning Electron Microscopy study

    Apicella D., Veltri M., Chieffi N., Polimeni A., Giovannetti A., Ferrari M.
credits