Accuracy of bone mapping and guided flapless implant placement in human cadavers using a model-based planning procedure.

Hdl Handle:
http://hdl.handle.net/10147/124150
Title:
Accuracy of bone mapping and guided flapless implant placement in human cadavers using a model-based planning procedure.
Authors:
Fitzgerald, Maurice; O'Sullivan, Michael; O'Connell, Brian; Houston, Frank
Affiliation:
Division of Restorative Dentistry and Periodontology, Dublin Dental School and Hospital, Trinity College, Dublin, Ireland.
Citation:
Accuracy of bone mapping and guided flapless implant placement in human cadavers using a model-based planning procedure., 25 (5):999-1006 Int J Oral Maxillofac Implants
Journal:
The International journal of oral & maxillofacial implants
Issue Date:
Sep-2010
URI:
http://hdl.handle.net/10147/124150
PubMed ID:
20862415
Abstract:
The objective of this study was to assess the accuracy of the model-based NobelGuide method in transferring preoperative planning and estimation of bone volume to the surgical situation.; Thirteen implant replicas were placed in bounded edentulous spaces in nine human cadavers. Highly restrictive guides were fabricated using preoperative bone mapping data. A stone cast was modified to represent the bone contours at the implant site. Postoperative impressions were taken for comparison with the planning cast that had been used to generate the guides. Mucoperiosteal flaps were raised over each implant site, and the areas were inspected for fenestrations, thread exposures, or dehiscences. A coordinate measuring device was used to obtain positional and angular information from each implant placed in the planned and postsurgical casts. These were compared and analyzed for clinical and statistical significance.; The median value for linear accuracy in three dimensions for the model-based NobelGuide was 0.48 mm and the median angular deviation was 2.88 degrees. The greatest measured errors were still within clinically acceptable limits. The bone mapping was of sufficient diagnostic value for implant placement in sites with sufficient bone volume (greater than 5 mm buccolingually). In sites with insufficient bone volume, dehiscences were seen, but the accuracy was independent of bone volume.; The use of the model-based NobelGuide encourages adherence to the restorative-driven approach. The accuracy of the method is within acceptable limits for guided surgery described in the literature, and the use of the bone mapping is satisfactory in cases with adequate bone volume. The technique can also be used in sites with insufficient bone volume, but a mucoperiosteal flap procedure is recommended. Int J Oral Maxillofac Implants 2010;25:999-1006.
Item Type:
Article
Language:
en
MeSH:
Cadaver; Dental Implantation, Endosseous; Dental Models; Humans; Jaw, Edentulous; Linear Models; Patient Care Planning; Statistics, Nonparametric; Surgery, Computer-Assisted
ISSN:
0882-2786

Full metadata record

DC FieldValue Language
dc.contributor.authorFitzgerald, Mauriceen
dc.contributor.authorO'Sullivan, Michaelen
dc.contributor.authorO'Connell, Brianen
dc.contributor.authorHouston, Franken
dc.date.accessioned2011-03-10T13:27:43Z-
dc.date.available2011-03-10T13:27:43Z-
dc.date.issued2010-09-
dc.identifier.citationAccuracy of bone mapping and guided flapless implant placement in human cadavers using a model-based planning procedure., 25 (5):999-1006 Int J Oral Maxillofac Implantsen
dc.identifier.issn0882-2786-
dc.identifier.pmid20862415-
dc.identifier.urihttp://hdl.handle.net/10147/124150-
dc.description.abstractThe objective of this study was to assess the accuracy of the model-based NobelGuide method in transferring preoperative planning and estimation of bone volume to the surgical situation.-
dc.description.abstractThirteen implant replicas were placed in bounded edentulous spaces in nine human cadavers. Highly restrictive guides were fabricated using preoperative bone mapping data. A stone cast was modified to represent the bone contours at the implant site. Postoperative impressions were taken for comparison with the planning cast that had been used to generate the guides. Mucoperiosteal flaps were raised over each implant site, and the areas were inspected for fenestrations, thread exposures, or dehiscences. A coordinate measuring device was used to obtain positional and angular information from each implant placed in the planned and postsurgical casts. These were compared and analyzed for clinical and statistical significance.-
dc.description.abstractThe median value for linear accuracy in three dimensions for the model-based NobelGuide was 0.48 mm and the median angular deviation was 2.88 degrees. The greatest measured errors were still within clinically acceptable limits. The bone mapping was of sufficient diagnostic value for implant placement in sites with sufficient bone volume (greater than 5 mm buccolingually). In sites with insufficient bone volume, dehiscences were seen, but the accuracy was independent of bone volume.-
dc.description.abstractThe use of the model-based NobelGuide encourages adherence to the restorative-driven approach. The accuracy of the method is within acceptable limits for guided surgery described in the literature, and the use of the bone mapping is satisfactory in cases with adequate bone volume. The technique can also be used in sites with insufficient bone volume, but a mucoperiosteal flap procedure is recommended. Int J Oral Maxillofac Implants 2010;25:999-1006.-
dc.language.isoenen
dc.subject.meshCadaver-
dc.subject.meshDental Implantation, Endosseous-
dc.subject.meshDental Models-
dc.subject.meshHumans-
dc.subject.meshJaw, Edentulous-
dc.subject.meshLinear Models-
dc.subject.meshPatient Care Planning-
dc.subject.meshStatistics, Nonparametric-
dc.subject.meshSurgery, Computer-Assisted-
dc.titleAccuracy of bone mapping and guided flapless implant placement in human cadavers using a model-based planning procedure.en
dc.typeArticleen
dc.contributor.departmentDivision of Restorative Dentistry and Periodontology, Dublin Dental School and Hospital, Trinity College, Dublin, Ireland.en
dc.identifier.journalThe International journal of oral & maxillofacial implantsen
dc.description.provinceLeinster-

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