Accuracy of implant placement based on pre‐surgical planning of three‐dimensional cone‐beam images: a pilot study

Assche, Nele Van; Steenberghe, Daniël van; Guerrero, María Eugenia; Hirsch, Edgar; Schutyser, Filip; Quirynen, Marc; Jacobs, Reinhilde

doi:10.1111/j.1600-051x.2007.01110.x

Cited by 268 publications

(230 citation statements)

References 28 publications

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“…However, all investigative procedures reported have been executed in partially edentulous patients with surgical guides entirely docked to the teeth. This is known because accuracy is significantly higher when the model has a dental support rather than a mucosal one (45,(56)(57)(58)(59). In addition, it affects the learning curve demonstrating that the surgeon has more or less familiar with the surgical procedures.…”

Section: Discussionmentioning

confidence: 99%

Transcrestal guided sinus lift without grafting materials: a 36 months clinical prospective study

Spinelli¹,

Vico²,

Condò

et al. 2015

ORL

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SUMMARYPurpose. This study describes the ability to perform a technique for bone regeneration in maxillary posterior deficit (TGSL) without the use of bone grafting materials using a highly minimally invasive protocol. Materials and methods. Sixty six implants have been inserted in the sinus floor of a total of 39 patients through the transcrestal guided sinus lift technique (TGSL). All patients have been followed for at least three years in function. The drilling protocol was adapted on the basis of bone density of each implant site to achieve a torque between 45 and 55 Ncm. Healing titanium abutments tightened to 35 Ncm have been used. A CAD/CAM metal ceramics final prosthetic restoration has been generated a six months after the tissues healing and the provisional functionalization of the occlusion. Survival rate of implants and prostheses, biological and biomechanical complications, changes in marginal bone levels, and total height of alveolar crest bone before and after surgery have been evaluate and measured by the results obtained in this prospective study. It was also measured the periodontal parameters as well as levels of perception of pain by the patient during the entire recovery period.Results. The result of the data of follow-up was 41.96 (24 to 36) months. Cumulative implant survival was 98.53% at 3 years. There were no biological and mechanical complications and there were no prosthetic failures during the whole period of follow-up. The Marginal Bone Loss (MBL) average during the first year of operation was from 0.33 to 0.36 mm, while the 3-year follow-up, the MBL average was 0.51 to 0.29 mm. The average of residual bone height of alveolar ridge before treatment was 6.7 to 1.6 mm (range 5.1 to 9.2 mm), while the average bone height was gained 6,4 -1.6 mm (range 3.2 to 8.1 mm). All patients reported lower pain levels and found to have normal periodontal parameters. Conclusions. This study suggests that the use of guided surgery to perform transcrestal maxillary sinus lift to increase the sub-antral crestal height is a minimally invasive technique of success for the short and medium-term of follow-up, thus avoiding the extended treatment time and reducing the morbidity associated with the lifting of the floor of the maxillary sinus with traditional technique using bone grafting materials. Furthermore, this protocol without the use of graft materials does not vary the final outcome that have demonstrated the presence of newly formed bone around implants offering always predictable results, and giving a further reduction in the costs of the procedure rehabilitation.

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Section: Discussionmentioning

confidence: 99%

Transcrestal guided sinus lift without grafting materials: a 36 months clinical prospective study

Spinelli¹,

Vico²,

Condò

et al. 2015

ORL

View full text Add to dashboard Cite

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“…interocclusal registration with addition or condensation silicone for guidance during CT scanning; f. occlusal CT view of guide and interocclusal record; g. isolated scan of guide (for flapless procedures) (Parel & Triplett, 2004;Balshi et al, 2006;Marchack, 2007;Sanna et al, 2007;Van Assche et al, 2007). CT slices acquired in the DICOM file format must be converted with the aid of a specific software package prior to manipulation and reformatting into 3D images.…”

Section: Guided Surgery In Dental Implantologymentioning

confidence: 99%

“…CT slices acquired in the DICOM file format must be converted with the aid of a specific software package prior to manipulation and reformatting into 3D images. During this process, the isolated radiographic guide scan is superimposed onto its occlusal view, using the radiopaque points as landmarks (Parel & Triplett, 2004;Balshi et al, 2006;Marchack, 2007;Sanna et al, 2007;Van Assche et al, 2007). The threshold for the case is also defined during this stage (Souza et al, 2003).…”

Section: Guided Surgery In Dental Implantologymentioning

confidence: 99%

“…These applications provide axial, panoramic, and three-dimensional reconstructions of CT slices (Marchack, 2007;Sanna et al, 2007;Van Assche et al, 2007). They also enable manipulation of the panoramic reconstruction curve on the axial plane, providing orthogonal slices for assessment of alveolar ridge thickness in the vestibulolingual or vestibulopalatal direction (Parel & Triplett, 2004;Sanna et al, 2007;Van Assche et al, 2007). Virtual planning gives implantologists the ability to choose the precise location, orientation, and dimensions of implants, abutments and other fixtures.…”

Section: Guided Surgery In Dental Implantologymentioning

confidence: 99%

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Virtual Planning for Dental Implant Placement Using Guided Surgery

Viegas¹,

Lacroix²,

Pagnoncelli³

et al. 2011

Implant Dentistry - The Most Promising Discipline of Dentistry

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“…Concomitantly, specialized radiographic imaging techniques have become more available for the preoperative planning of oral implant placement. Many clinical situations require the use of these advanced cross-sectional three-dimensional (3D) imaging techniques for optimal implant placement [1][2][3] . Cross-sectional information can be acquired with conventional medical computed tomography (CT) [4] .…”

Section: Introductionmentioning

confidence: 99%

Comparison of two cone beam computed tomography multiplanar reconstruction orientation protocols

Kumar¹,

Ang²,

Williams³

et al. 2013

JBGC

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Objective: The utilization of cone beam computed tomographic imaging for oral implants has increased enormously for precise determination of anatomic dimensions. However, the impact of reorientation of data that influences the constructed panoramic view and thus the measurements on generated cross sectional views has not been explored. This study is undertaken to explore if differences exist in the implant height and width measurement when the whole data is reoriented from the standard manufacturer's setting to an aligned protocol (perpendicular to the implant (XYZ) settings). Material and Methods:Two different orientation protocols were set up, standard and aligned or perpendicular setting (XYZ), and implant height and width measurements derived from these were compared to the original known measurements. Results:The range of differences between actual dimensions and measurements obtained using each orientation method using McNemar's Change test in the four accuracy categories (exact, +0.20, +0.25, and +0.50) showed the aligned orientation produced larger proportion of width measurements between +0.25 and +0.50 compared to standard for width measures; however, these differences were not statistically significant. Implant length measurements varied widely and this variability was irrespective of orientation method. Conclusions:The aligned/perpendicular (XYZ) protocol produces implant width measurements more accurate than length when compared to the standard protocol.

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Accuracy of implant placement based on pre‐surgical planning of three‐dimensional cone‐beam images: a pilot study

Abstract: Cone-beam images could be used for implant planning, taking into account a maximal 4 degrees angular and 2.4 mm linear deviation at the apical tip.

Cited by 268 publications

References 28 publications

Transcrestal guided sinus lift without grafting materials: a 36 months clinical prospective study

Transcrestal guided sinus lift without grafting materials: a 36 months clinical prospective study

Virtual Planning for Dental Implant Placement Using Guided Surgery

Comparison of two cone beam computed tomography multiplanar reconstruction orientation protocols

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