Accuracy of implant placement using three different surgical guides

2018 ◽  
Vol 64 (4) ◽  
pp. 3713-3721
Author(s):  
Maha Nagi
Keyword(s):  
Implant Placement ◽  
Surgical Guides

scholarly journals Effects of Groove Sealing of the Posterior Occlusal Surface and Offset of the Internal Surface on the Internal Fit and Accuracy of Implant Placements Using 3D-Printed Surgical Guides: An In Vitro Study

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1236
Author(s):  
Jung-Hwa Lim ◽  
Enkhjargal Bayarsaikhan ◽  
Seung-Ho Shin ◽  
Na-Eun Nam ◽  
June-Sung Shim ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Internal Surface ◽  
Three Dimensions ◽  
Surface Shape ◽  
Digital Data ◽  
Surgical Guide ◽  
Implant Placement ◽  
Surgical Guides ◽  
Internal Fit

This study evaluated the internal fit and the accuracy of the implant placement position in order to determine how the surface shape of the tooth and the offset influence the accuracy of the surgical guide. The acquired digital data were analyzed in three dimensions using 3D inspection software. The obtained results confirmed that the internal fit was better in the groove sealing (GS) group (164.45 ± 28.34 μm) than the original shape (OS) group (204.07 ± 44.60 μm) (p < 0.001), and for an offset of 100 μm (157.50 ± 17.26 μm) than for offsets of 30 μm (206.48 ± 39.12 μm) and 60 μm (188.82 ± 48.77 μm) (p < 0.001). The accuracy of implant placement was better in the GS than OS group in terms of the entry (OS, 0.229 ± 0.092 mm; GS, 0.169 ± 0.061 mm; p < 0.001), apex (OS, 0.324 ± 0.149 mm; GS, 0.230 ± 0.124 mm; p < 0.001), and depth (OS, 0.041 ± 0.027 mm; GS, 0.025 ± 0.022 mm; p < 0.001). In addition, the entries (30 μm, 0.215 ± 0.044 mm; 60 μm, 0.172 ± 0.049 mm; 100 μm, 0.119 ± 0.050 mm; p < 0.001) were only affected by the amount of offset. These findings indicate that the accuracy of a surgical guide can be improved by directly sealing the groove of the tooth before manufacturing the surgical guide or setting the offset during the design process.

Evaluation of the accuracy of a novel surgical guide for flapless dental implant placement for immediate loading in edentulous jaws

2021 ◽  
Author(s):  
Giovanni de Almeida Prado Di Giacomo ◽  
Patrícia Cury ◽  
Airton Moreira da Silva ◽  
Jorge Vicente Lopes da Silva ◽  
Carlos Eduardo Pompeo Souto ◽  
...  
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Selective Laser Sintering ◽  
Apical Region ◽  
Virtual Planning ◽  
Surgical Guide ◽  
Implant Placement ◽  
Surgical Guides ◽  
Edentulous Jaws ◽  
Edentulous Jaw

This study was designed to evaluate the accuracy of a novel computer-designed and selectively laser sintered surgical guide for flapless dental implant placement in the edentulous jaw. Fifty dental implants were placed in 11 patients with at least one totally edentulous jaw. Initially, cone-beam computed tomography (CBCT) was performed in each patient to define the virtual position of the dental implants based on the assessment of bone availability and the proposed dental prosthesis. After virtual planning, 3D surgical guides were printed using selective laser sintering. CBCT was repeated after the surgery, and the pre-and postoperative images were overlapped in the CAD software to compare the planned and actual positions of the dental implants using a one-sample t-test. The mean ± angular standard deviation between the long axes of the planned and final dental implant positions was 4.58 ±2.85 degrees; The linear deviation in the coronal position was  0.87 ± 0.49 mm and  in the apical region of the dental implants was 1.37 ± 0.69 mm. These differences were statistically significant (p &lt;0.001). The proposed modifications reduced the deviations, resulting in an improvement in the technique. We were able to place implants and temporary prostheses using the present protocol, taking into account the differences between the planned and final positions of the dental implants.

scholarly journals Implant Surgery Using Bio-compatible Guides

2018 ◽  
Vol 55 (1) ◽  
pp. 38-41
Author(s):  
Serban Talpos ◽  
Tareq Hajaj ◽  
Costin Timofte ◽  
Mircea Rivis ◽  
Felicia Streian ◽  
...  
Keyword(s):  
Primary Stability ◽  
Daily Practice ◽  
Implant Placement ◽  
Surgical Guides ◽  
Technological Advances ◽  
Tissue Healing ◽  
The Future ◽  
Oral Tissue ◽  
The One ◽  
User Friendly

Implants and biomaterials used in hard and soft oral tissue augmentation are very complex, but predictable to use nowadays, as the technological advances haven�t skipped this field of medicine. Cases that were impossible to treat with implant retained fixed prosthesis some years ago, have become the daily practice of oral surgeons and dentists around the world. The new user-friendly products, together with simplified protocols, increased the practitioners� predictability and success rate, thus the biomaterial industry took a huge leap forward. As the biomaterial industry keeps developing continuously, making better and safer products, the surgical and prosthetic protocols evolve and change as well. On this matter, the implant placement has become safer, using digital surgical guides. Guided implant placement doesn�t just allow the practitioner place the implant in the patient�s bone, but, moreover, it helps him place it in the correct, 3D, prosthetic position. And, thus, guiding the future bone augmentation and regeneration as well, accordingly. So, the implant placement has shifted from bone-orientated to prosthetic-orientated, offering at the same time a better primary stability for the implants, due to the prior planning. The present clinical study aims to analyze the outcome of the digital guided protocol. Unlike the free-handed surgery, the digital guided surgery allows dentists and oral surgeons to place implants according to the future prosthetic position of the crowns, even in conditions of alveolar ridges with bone resorption. Moreover, it makes possible the �one day implant� concept, the dental technician being able to create the provisional crown/s in advance, knowing precisely the future position of the implant placement. So, at the time of the surgery, the provisional crown is also put in place, guiding the soft and hard tissue healing and also giving the patient a greater satisfaction.

scholarly journals How Accurate Is Oral Implant Installation Using Surgical Guides Printed from a Degradable and Steam-Sterilized Biopolymer?

2020 ◽  
Vol 9 (8) ◽  
pp. 2322 ◽  
Author(s):  
Stefano Pieralli ◽  
Benedikt Christopher Spies ◽  
Valentin Hromadnik ◽  
Robert Nicic ◽  
Florian Beuer ◽  
...  
Keyword(s):  
Fused Deposition Modeling ◽  
Reference Group ◽  
Second Molar ◽  
Surgical Workflow ◽  
Surgical Guide ◽  
Fused Deposition ◽  
Implant Placement ◽  
Surgical Guides ◽  
Oral Implant ◽  
Observational Group

3D printed surgical guides are used for prosthetically-driven oral implant placement. When manufacturing these guides, information regarding suitable printing techniques and materials as well as the necessity for additional, non-printed stock parts such as metal sleeves is scarce. The aim of the investigation was to determine the accuracy of a surgical workflow for oral implant placement using guides manufactured by means of fused deposition modeling (FDM) from a biodegradable and sterilizable biopolymer filament. Furthermore, the potential benefit of metal sleeve inserts should be assessed. A surgical guide was designed for the installation of two implants in the region of the second premolar (SP) and second molar (SM) in a mandibular typodont model. For two additive manufacturing techniques (stereolithography [SLA]: reference group, FDM: observational group) n = 10 surgical guides, with (S) and without (NS) metal sleeves, were used. This resulted in 4 groups of 10 samples each (SLA-S/NS, FDM-S/NS). Target and real implant positions were superimposed and compared using a dedicated software. Sagittal, transversal, and vertical discrepancies at the level of the implant shoulder, apex and regarding the main axis were determined. MANOVA with posthoc Tukey tests were performed for statistical analyses. Placed implants showed sagittal and transversal discrepancies of <1 mm, vertical discrepancies of <0.6 mm, and axial deviations of ≤3°. In the vertical dimension, no differences between the four groups were measured (p ≤ 0.054). In the sagittal dimension, SLA groups showed decreased deviations in the implant shoulder region compared to FDM (p ≤ 0.033), whereas no differences in the transversal dimension between the groups were measured (p ≤ 0.054). The use of metal sleeves did not affect axial, vertical, and sagittal accuracy, but resulted in increased transversal deviations (p = 0.001). Regarding accuracy, biopolymer-based surgical guides manufactured by means of FDM present similar accuracy than SLA. Cytotoxicity tests are necessary to confirm their biocompatibility in the oral environment.

scholarly journals Accuracy and Complications of Computer-Designed Selective Laser Sintering Surgical Guides for Flapless Dental Implant Placement and Immediate Definitive Prosthesis Installation

2012 ◽  
Vol 83 (4) ◽  
pp. 410-419 ◽  
Author(s):  
Giovanni A. Di Giacomo ◽  
Jorge V. da Silva ◽  
Airton M. da Silva ◽  
Gustavo H. Paschoal ◽  
Patricia R. Cury ◽  
...  
Keyword(s):  
Dental Implant ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Implant Placement ◽  
Surgical Guides

Clinical Application of Stereolithographic Surgical Guides for Implant Placement: Preliminary Results

2005 ◽  
Vol 76 (4) ◽  
pp. 503-507 ◽  
Author(s):  
Giovanni A.P. Di Giacomo ◽  
Patricia R. Cury ◽  
Ney Soares de Araujo ◽  
Wilson R. Sendyk ◽  
Claudio L. Sendyk
Keyword(s):  
Clinical Application ◽  
Preliminary Results ◽  
Implant Placement ◽  
Surgical Guides

scholarly journals ACCURACY OF IMPLANT PLACEMENT USING TWO DIFFERENT TYPES OF CAD/CAM SURGICAL GUIDES (AN INVITRO STUDY)

2019 ◽  
Vol 44 (3) ◽  
pp. 28-33
Author(s):  
Moustafa F. Ahmed ◽  
Ahmed M. AbdelHamid ◽  
Fayza H. AlAbbasy
Keyword(s):  
Implant Placement ◽  
Surgical Guides ◽  
Different Types ◽  
Cad Cam

scholarly journals Accuracy of Customized Prefabricated Screw-Type Immediate Provisional Restorations after Single-Implant Placement

2019 ◽  
Vol 8 (4) ◽  
pp. 490 ◽  
Author(s):  
Kyung Chul Oh ◽  
Jee-Hwan Kim ◽  
Chang-Woo Woo ◽  
Hong Seok Moon
Keyword(s):  
Computer Aided Design ◽  
Computer Assisted ◽  
Angular Deviation ◽  
Intraoral Scanner ◽  
Planning Stage ◽  
Implant Placement ◽  
Surgical Guides ◽  
Planning Software ◽  
Single Implant

Limited evidence is available comparing the differences between pre-operative and post-operative 3D implant positions from the viewpoint of prosthetics. We aimed to investigate the differences between preplanned positions of virtual provisional restorations and their actual positions following fully guided single-implant placement. Ten maxillary typodonts with missing right central incisors were imaged using cone-beam computed tomography, and digital impressions were obtained using an intraoral scanner. These data were imported into implant-planning software, following which the provisional restorations were designed. After data superimposition, an appropriate implant position was determined, and a computer-assisted implant surgical guide was designed for each typodont. Orders generated from the implant-planning software were imported into relevant computer-aided design software to design the custom abutments. The abutments, provisional restorations, and surgical guides were fabricated, and each restoration was cemented to the corresponding abutments, generating a screw-type immediate provisional restoration. The implants were placed using the surgical guides, and the screw-type provisional restorations were engaged to the implants. The typodonts were then rescanned using the intraoral scanner. The restorations designed at the treatment planning stage were compared with those in the post-operative scan using metrology software. The angular deviation around the central axis of the implant was measured, and the differences in the crown position were converted to root mean square (RMS) values. The post-operative provisional restorations exhibited an absolute angular deviation of 6.94 ± 5.78° and an RMS value of 85.8 ± 20.2 µm when compared with their positions in the pre-operative stage. Within the limitations of the present in vitro study, the results highlight the potential application of customized prefabricated immediate provisional restorations after single-implant placement.

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