Accuracy of implant placement based on pre-surgical planning of three-dimensional cone-beam images : a pilot study
Identifieur interne : 006C55 ( Main/Merge ); précédent : 006C54; suivant : 006C56Accuracy of implant placement based on pre-surgical planning of three-dimensional cone-beam images : a pilot study
Auteurs : N. Van Assche [Belgique] ; D. Van Steenberghe [Belgique] ; M. E. Guerrero [Belgique] ; E. Hirsch [Allemagne] ; F. Schutyser [Belgique] ; M. Quirynen [Belgique] ; R. Jacobs [Belgique]Source :
- Journal of clinical periodontology [ 0303-6979 ] ; 2007.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Chirurgie.
English descriptors
- KwdEn :
Abstract
Aim: To evaluate the precision of transfer of a computer-based three-dimensional (3D) planning, using re-formatted cone-beam images, for oral implant placement in partially edentulous jaws. Material and Methods: Four formalin-fixed cadaver jaws were imaged in a 3D Accuitomo FPD® cone-beam computed tomography (CT). Data were used to produce an accurate implant planning with a transfer to surgery by means of stereolithographic drill guides. Pre-operative cone-beam CT images were subsequently matched with post-operative ones to calculate the deviation between planned and installed implants. Results: Placed implants (length: 10-15 mm) showed an average angular deviation of 2° (SD: 0.8, range: 0.7-4.0°) as compared with the planning, while the mean linear deviation was 1.1 mm (SD: 0.7mm, range 0.3-2.3 mm) at the hex and 2.0mm (SD: 0.7 mm, range 0.7-2.4 mm) at the tip. Conclusions: Cone-beam images could be used for implant planning, taking into account a maximal 4° angular and 2.4 mm linear deviation at the apical tip.
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accuracy</term>
<term>Bone</term>
<term>Computer aid</term>
<term>Computerized axial tomography</term>
<term>Dentistry</term>
<term>Edentulousness</term>
<term>Ex vivo</term>
<term>Implant</term>
<term>Jaw</term>
<term>Planning</term>
<term>Stereolithography</term>
<term>Surgery</term>
<term>Treatment</term>
<term>Tridimensional image</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Edentation</term>
<term>Chirurgie</term>
<term>Image tridimensionnelle</term>
<term>Tomodensitométrie</term>
<term>Précision</term>
<term>Implant</term>
<term>Planification</term>
<term>Assistance ordinateur</term>
<term>Ex vivo</term>
<term>Mâchoire</term>
<term>Os</term>
<term>Stéréolithographie</term>
<term>Dentisterie</term>
<term>Traitement</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Chirurgie</term>
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<front><div type="abstract" xml:lang="en">Aim: To evaluate the precision of transfer of a computer-based three-dimensional (3D) planning, using re-formatted cone-beam images, for oral implant placement in partially edentulous jaws. Material and Methods: Four formalin-fixed cadaver jaws were imaged in a 3D Accuitomo FPD® cone-beam computed tomography (CT). Data were used to produce an accurate implant planning with a transfer to surgery by means of stereolithographic drill guides. Pre-operative cone-beam CT images were subsequently matched with post-operative ones to calculate the deviation between planned and installed implants. Results: Placed implants (length: 10-15 mm) showed an average angular deviation of 2° (SD: 0.8, range: 0.7-4.0°) as compared with the planning, while the mean linear deviation was 1.1 mm (SD: 0.7mm, range 0.3-2.3 mm) at the hex and 2.0mm (SD: 0.7 mm, range 0.7-2.4 mm) at the tip. Conclusions: Cone-beam images could be used for implant planning, taking into account a maximal 4° angular and 2.4 mm linear deviation at the apical tip.</div>
</front>
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