Computer-Assisted Surgery in the Edentulous Jaw Based on 3 Fixed Intraoral Reference Points
Identifieur interne : 005546 ( Main/Exploration ); précédent : 005545; suivant : 005547Computer-Assisted Surgery in the Edentulous Jaw Based on 3 Fixed Intraoral Reference Points
Auteurs : Gerlig Widmann [Autriche] ; Martin Keiler [Autriche] ; Antoniette Zangerl [Autriche] ; Rudolf Stoffner [Autriche] ; Stefano Longato [Autriche] ; Reto Bale [Autriche] ; Wolfgang Puelacher [Autriche]Source :
- Journal of oral and maxillofacial surgery [ 0278-2391 ] ; 2010.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Purpose: In computer-assisted implantation surgery, the transfer of prosthodontic-guided planning to the operative site is usually based on a registration template. The precise repositioning of the registration template is crucial for high accuracy and is compromised in edentulous jaws. The purpose was to determine the in vitro registration and targeting accuracy for surgical navigation in the edentulous jaw based on 3 fixed intraoral reference points. Materials and Methods: Edentulous maxilla and mandible cadaver specimens were provided with 3 fixed reference-point screws. A resin template with matrices for the fixed reference-point screws was produced and connected to a Vogele-Bale-Hohner registration mouthpiece and external registration frame with a snap-lock system. Surgical implants were planned on computed tomographic data and the corresponding dental stone casts were drilled under guidance of an optical navigation system. For evaluation of the registration accuracy, fiducial registration error was recorded and application accuracy was evaluated by fusion of postsurgical computed tomographic scans of the drilled dental stone casts with the presurgical planning computed tomogram. Results: In 9 maxillas and 5 mandibles, 14 registrations and 104 stone cast drillings were performed. The mean fiducial registration error was 0.49 ± 0.14 mm (0.37 to 0.9 mm). The mean total error at the tip of the borehole was 0.88 ± 0.65 mm (0.0 to 4.24 mm). The mean lateral errors were 0.51 ± 0.49 mm (0.0 to 2.80 mm) at the base and 0.46 ± 0.34 mm (0.0 to 1.5 mm) at the tip of the borehole, respectively. The mean angular error was 0.83 ± 0.60° (0.0 to 2.5°). Conclusion: Three fixed intraoral reference points successfully support a registration mouthpiece and provide in vitro registration and targeting accuracy that is comparable to tooth-supported registration templates or bone marker registration.
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University</wicri:noRegion></affiliation></author><author><name sortKey="Stoffner, Rudolf" sort="Stoffner, Rudolf" uniqKey="Stoffner R" first="Rudolf" last="Stoffner">Rudolf Stoffner</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Innsbruck Medical University</s1><s2>Innsbruck</s2><s3>AUT</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Autriche</country><wicri:noRegion>Innsbruck Medical University</wicri:noRegion></affiliation></author><author><name sortKey="Longato, Stefano" sort="Longato, Stefano" uniqKey="Longato S" first="Stefano" last="Longato">Stefano Longato</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Innsbruck Medical University</s1><s2>Innsbruck</s2><s3>AUT</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Autriche</country><wicri:noRegion>Innsbruck Medical 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University</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of oral and maxillofacial surgery</title><title level="j" type="abbreviated">J. oral maxillofac. surg.</title><idno type="ISSN">0278-2391</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of oral and maxillofacial surgery</title><title level="j" type="abbreviated">J. oral maxillofac. surg.</title><idno type="ISSN">0278-2391</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Computer-assisted surgery</term><term>Edentulousness</term><term>Jaw</term><term>Oral cavity</term><term>Stomatology</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Edentation</term><term>Mâchoire</term><term>Cavité buccale</term><term>Stomatologie</term><term>Chirurgie assistée par ordinateur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Purpose: In computer-assisted implantation surgery, the transfer of prosthodontic-guided planning to the operative site is usually based on a registration template. The precise repositioning of the registration template is crucial for high accuracy and is compromised in edentulous jaws. The purpose was to determine the in vitro registration and targeting accuracy for surgical navigation in the edentulous jaw based on 3 fixed intraoral reference points. Materials and Methods: Edentulous maxilla and mandible cadaver specimens were provided with 3 fixed reference-point screws. A resin template with matrices for the fixed reference-point screws was produced and connected to a Vogele-Bale-Hohner registration mouthpiece and external registration frame with a snap-lock system. Surgical implants were planned on computed tomographic data and the corresponding dental stone casts were drilled under guidance of an optical navigation system. For evaluation of the registration accuracy, fiducial registration error was recorded and application accuracy was evaluated by fusion of postsurgical computed tomographic scans of the drilled dental stone casts with the presurgical planning computed tomogram. Results: In 9 maxillas and 5 mandibles, 14 registrations and 104 stone cast drillings were performed. The mean fiducial registration error was 0.49 ± 0.14 mm (0.37 to 0.9 mm). The mean total error at the tip of the borehole was 0.88 ± 0.65 mm (0.0 to 4.24 mm). The mean lateral errors were 0.51 ± 0.49 mm (0.0 to 2.80 mm) at the base and 0.46 ± 0.34 mm (0.0 to 1.5 mm) at the tip of the borehole, respectively. The mean angular error was 0.83 ± 0.60° (0.0 to 2.5°). Conclusion: Three fixed intraoral reference points successfully support a registration mouthpiece and provide in vitro registration and targeting accuracy that is comparable to tooth-supported registration templates or bone marker registration.</div></front></TEI><affiliations><list><country><li>Autriche</li></country></list><tree><country name="Autriche"><noRegion><name sortKey="Widmann, Gerlig" sort="Widmann, Gerlig" uniqKey="Widmann G" first="Gerlig" last="Widmann">Gerlig Widmann</name></noRegion><name sortKey="Bale, Reto" sort="Bale, Reto" uniqKey="Bale R" first="Reto" last="Bale">Reto Bale</name><name sortKey="Keiler, Martin" sort="Keiler, Martin" uniqKey="Keiler M" first="Martin" last="Keiler">Martin Keiler</name><name sortKey="Longato, Stefano" sort="Longato, Stefano" uniqKey="Longato S" first="Stefano" last="Longato">Stefano Longato</name><name sortKey="Puelacher, Wolfgang" sort="Puelacher, Wolfgang" uniqKey="Puelacher W" first="Wolfgang" last="Puelacher">Wolfgang Puelacher</name><name sortKey="Stoffner, Rudolf" sort="Stoffner, Rudolf" uniqKey="Stoffner R" first="Rudolf" last="Stoffner">Rudolf Stoffner</name><name sortKey="Zangerl, Antoniette" sort="Zangerl, Antoniette" uniqKey="Zangerl A" first="Antoniette" last="Zangerl">Antoniette Zangerl</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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