Accuracy of Virtually Planned and Template Guided Implant Surgery on Edentate Patients

Pettersson, Andreas; Komiyama, Ai; Hultin, Margareta; Näsström, Karin; Klinge, Björn

doi:10.1111/j.1708-8208.2010.00285.x

Cited by 129 publications

(134 citation statements)

References 14 publications

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“…The risk of deviation between the planned and placed implant position 1,3,8,11 and the possible occurrence of unexpected events or complications, remains substantial 3,5,8,20 .…”

Section: Discussionmentioning

confidence: 99%

Depth deviation and occurrence of early surgical complications or unexpected events using a single stereolithographic surgi-guide

Cassetta¹,

Stefanelli²,

Giansanti³

et al. 2011

International Journal of Oral and Maxillofacial Surgery

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“…The risk of deviation between the planned and placed implant position 1,3,8,11 and the possible occurrence of unexpected events or complications, remains substantial 3,5,8,20 .…”

Section: Discussionmentioning

confidence: 99%

Depth deviation and occurrence of early surgical complications or unexpected events using a single stereolithographic surgi-guide

Cassetta¹,

Stefanelli²,

Giansanti³

et al. 2011

International Journal of Oral and Maxillofacial Surgery

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“…This could also add some bias into the accuracy measurements, as factors such as scan appliance positioning after the surgery, patient movement during CBCT exposure, or factors related to software file merging could play a role 29, 31…”

Section: Discussionmentioning

confidence: 99%

Accuracy of mucosa supported guided dental implant surgery

Jones

2018

Clinical Case Reports

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“…To transfer this 3D implant planning to the operating room, a surgical template that is generated based on the patient's prosthesis and the planned position of the implants can be used [2][3][4][5][6][7][8][9][10][11][12][13]. This surgical template contains tubes to guide the surgeon to the planned location of the implants (Fig.…”

Section: Introductionmentioning

confidence: 99%

Calibrated segmentation of CBCT and CT images for digitization of dental prostheses

Wouters¹,

Mollemans²,

Schutyser³

2011

Int J CARS

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Purpose State of the art computer aided implant planning procedures typically use a surgical template to transfer the digital 3D planning to the operating room. This surgical template can be generated based on an acrylic copy of the patient's removable prosthesis-the so-called radiographic guide-which is digitized using a CBCT or CT scanner. Since the same accurate fit between the surgical template and the patient as with the radiographic guide and the patient should be ensured, a procedure to accurately digitize this guide is needed. Methods A procedure is created to accurately digitize radiographic guides based on a calibrated segmentation. Therefore, two steps have to be executed. First, during a calibration step a calibration object is CBCT or CT scanned and a calibration algorithm which results in an optimal threshold value is executed. Next the guide is CBCT or CT scanned and a 3D model is created using the obtained optimal threshold. To validate our method, we compared a high accuracy laser scanned copy of the guide with the generated 3D model by creating a distance map between both models. Results The procedure was performed for different CBCT and CT scanners, and the digitization error for each scanner was defined. The 90th percentile error measured on average 0.15 mm, which was always less than the applied voxel size for all CBCT and CT test scans. Conclusions The calibration procedure evaluated in this study solves the known problem of digitizing a radiographic guide based on non-standardized gray value CBCT images. The procedure can easily be executed by a clinician and allows an accurate digitization of a radiographic guide using V. Wouters (B) · W. Mollemans · F. Schutyser a CBCT or CT scanner. Starting from this digitization, an accurate surgical template can be made which has a good fit on the patient's remaining teeth and surrounding soft tissues.

show abstract

Accuracy of Virtually Planned and Template Guided Implant Surgery on Edentate Patients

Abstract: The hypothesis was rejected, as the statistical results indicated that there were significant differences between virtually planned implants' position and the final position of implants placed clinically.

Cited by 129 publications

References 14 publications

Depth deviation and occurrence of early surgical complications or unexpected events using a single stereolithographic surgi-guide

Depth deviation and occurrence of early surgical complications or unexpected events using a single stereolithographic surgi-guide

Accuracy of mucosa supported guided dental implant surgery

Calibrated segmentation of CBCT and CT images for digitization of dental prostheses

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