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Shruthi D, Saravanan M, Reddy V, Balasubramanium M. Comparative evaluation on wear resistance of metal sleeve, sleeve-free resin, and reinforced sleeve-free resin implant guide: An in vitro study. J Indian Prosthodont Soc 2024; 24:196-200. [PMID: 38650345 PMCID: PMC11129808 DOI: 10.4103/jips.jips_535_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/26/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND In-office three-dimensional (3D) printers and metal sleeveless surgical guides are becoming a major trend recently. However, metal sleeve-free designs are reported to be more prone to distortion which might lead to variation in the inner diameter of the drill hole and cause deviation and inaccuracy in the placement of the implant. Carbon fiber nanoparticles are reported to improve the properties of 3D printing resin material in industrial application. AIM The purpose of the study is to evaluate and compare the wear resistance of 3D-printed implant guides with metal sleeve, sleeve-free, and reinforced sleeve-free resin to the guide drill. MATERIALS AND METHODS A total of 66 samples with 22 samples in each group. Three groups including 3D-printed surgical guide with metal sleeve (Group A), without metal sleeve (Group B), an carbon fiber reinforced without metal sleeve (Group C) were included in the study. All samples were evaluated before sequential drilling and after sequential drilling using Vision Measuring Machine. The data were tabulated and statistically evaluated. RESULTS The data obtained were statistically analyzed with one-way analysis of variance and posthoc test. The data obtained for wear observed in the samples showed that the wear was highest in Group B with a mean of 0.5036 ± 0.1118 and the least was observed in Group A with a mean of 0.0228 ± 0.0154 and Group C was almost similar to Group A with mean of 0.0710 ± 0.0381. The results showed there was a significant difference between Group B with Group A and C, respectively (P < 0.05). The results showed that there was no significant difference regarding the wear observed between Groups A and C (P > 0.05). CONCLUSION The wear observed in the guide with a metal sleeve and carbon fiber reinforced without a metal sleeve was almost similar. The carbon fiber-reinforced guide showed better tolerance to guide drill equivalent to metal sleeve. Thus, carbon fiber nanoparticles reinforced in 3D printing resin have shown improved strength and can be used as a good replacement for a metal sleeve for an accurate placement of the implant.
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Affiliation(s)
- D Shruthi
- Department of Prosthodontics, SRM Dental College, Chennai, Tamil Nadu, India
| | - M. Saravanan
- Department of Prosthodontics, SRM Dental College, Chennai, Tamil Nadu, India
| | - Vishal Reddy
- Department of Prosthodontics, SRM Dental College, Chennai, Tamil Nadu, India
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Ali A, Brintouch I, Romanos G, Delgado-Ruiz R. Cooling Efficiency of Sleeveless 3D-Printed Surgical Guides with Different Cylinder Designs. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:239. [PMID: 38399527 PMCID: PMC10889961 DOI: 10.3390/medicina60020239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/11/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024]
Abstract
Background and Objectives: Surgical guides might impede the flow of coolant to the implant drills during the preparation of the implant bed, potentially contributing to increased temperatures during bone drilling. The objective of this experimental study was to assess the cooling efficiency of various guiding cylinder designs for sleeveless surgical guides used in guided surgery. Materials and Methods: In this experimental study, surgical guides with three different guiding cylinder designs were printed. One group had solid cylinders (control) and two test groups (cylinders with pores and cylinders with windows). Forty customized polyurethane blocks with type III bone characteristics were fitted into the guide and fixed in a vise, and implant bed preparations were completed using a simplified drilling protocol with and without irrigation. An infrared thermographic camera was used to record the temperature changes during drilling at the coronal, middle, and apical areas. ANOVA test and Games-Howell post hoc test were used to determine significant thermal differences among groups. Results: A significant thermal increase was observed at the coronal area in the group without irrigation (39.69 ± 8.82) (p < 0.05). The lowest thermal increase was recorded at the surgical guides with windows (21.451 ± 0.703 °C) compared to solid (25.005 ± 0.586 °C) and porous surgical guides (25.630 ± 1.004) (p < 0.05). In the middle and apical areas, there were no differences between solid and porous cylinders (p > 0.05). Conclusions: 3D-printed sleeveless surgical guides with window openings at the guiding cylinders reduce the temperature elevation at the cortical bone in guided implant surgery.
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Affiliation(s)
- Aisha Ali
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA; (A.A.); (I.B.)
| | - Ido Brintouch
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA; (A.A.); (I.B.)
| | - Georgios Romanos
- Department of Periodontology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA;
| | - Rafael Delgado-Ruiz
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA; (A.A.); (I.B.)
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Sharma S, Tan E, Tran B, Siow HY, Tafesse E, Thong YHJ, Tan RJM, Son J, Todaro L, Teo J, Abduo J. Effect of pilot-guided implant placement concept on the accuracy of osteotomy preparation and implant placement. J Oral Sci 2024; 66:20-25. [PMID: 38030287 DOI: 10.2334/josnusd.23-0157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
PURPOSE To evaluate the accuracy of osteotomy preparation and implant placement for 3 pilot-guided (PG) concepts, namely, a surgical template with a metal sleeve (MS), a surgical template with an in-built nonmetal sleeve (NMS), and a surgical template with an in-built nonmetal sleeve for round bur indentation (RB). METHODS Surgical models with missing maxillary molars were studied. The MS templates were designed to accept metal sleeves, while the NMS and RB templates were designed with in-built nonmetal sleeves. Ten templates were tested per group (n = 10). After each step (pilot drilling, 2nd drilling, 3rd drilling, profiling, and implant placement), the surgical model was scanned and compared against the planning model to determine maximum horizontal deviation (MHD) and maximum angle deviation (MAD). RESULTS The MS and NMS templates exhibited a similar increase in MHD with successive drilling steps. The MAD for the pilot drilling step was significantly lower for MS than for the other groups. However, the differences among groups for MHD and MAD diminished in later steps. All templates had an MHD of 1.0 mm or less and an MAD less than 8°. CONCLUSION The investigated PG implant placement concepts resulted in similar deviations in the placed implants.
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Affiliation(s)
- Shruti Sharma
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Emilie Tan
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Britney Tran
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Hui Y Siow
- Restorative Section, Melbourne Dental School, Melbourne University
| | | | - Yoong H J Thong
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Row J M Tan
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Jungwoo Son
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Lisa Todaro
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Josephine Teo
- Restorative Section, Melbourne Dental School, Melbourne University
| | - Jaafar Abduo
- Restorative Section, Melbourne Dental School, Melbourne University
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Takács A, Hardi E, Cavalcante BGN, Szabó B, Kispélyi B, Joób-Fancsaly Á, Mikulás K, Varga G, Hegyi P, Kivovics M. Advancing accuracy in guided implant placement: A comprehensive meta-analysis: Meta-Analysis evaluation of the accuracy of available implant placement Methods. J Dent 2023; 139:104748. [PMID: 37863173 DOI: 10.1016/j.jdent.2023.104748] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/22/2023] Open
Abstract
OBJECTIVES This meta-analysis aimed to determine the accuracy of currently available computer-assisted implant surgery (CAIS) modalities under in vitro conditions and investigate whether these novel techniques can achieve clinically acceptable accuracy. DATA In vitro studies comparing the postoperative implant position with the preoperative plan were included. Risk of bias was assessed using the Quality Assessment Tool For In Vitro Studies (QUIN Tool) and a sensitivity analysis was conducted using funnel plots. SOURCES A systematic search was performed on April 18, 2023, using the following three databases: MEDLINE (via PubMed), EMBASE, and Cochrane Central Register of Controlled Trials. No filters or restrictions were applied during the search. RESULTS A total of 5,894 studies were included following study selection. Robotic- and static CAIS (sCAIS) had the most accurate and clinically acceptable outcomes. sCAIS was further divided according to the guidance level. Among the sCAIS groups, fully guided implant placement had the greatest accuracy. Augmented reality-based CAIS (AR-based CAIS) had clinically acceptable results for all the outcomes except for apical global deviation. Dynamic CAIS (dCAIS) demonstrated clinically safe results, except for horizontal apical deviation. Freehand implant placement was associated with the greatest number of errors. CONCLUSIONS Fully guided sCAIS demonstrated the most predictable outcomes, whereas freehand sCAIS demonstrated the lowest accuracy. AR-based and robotic CAIS may be promising alternatives. CLINICAL SIGNIFICANCE To our knowledge, this is the first meta-analysis to evaluate the accuracy of robotic CAIS and investigate the accuracy of various CAIS modalities.
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Affiliation(s)
- Anna Takács
- Department of Community Dentistry, Semmelweis University, Szentkirályi utca 40. 1088 Budapest, Hungary; Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary
| | - Eszter Hardi
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária utca 52. 1085 Budapest, Hungary
| | - Bianca Golzio Navarro Cavalcante
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Department of Oral Biology, Semmelweis University, Nagyvárad tér 4. 1089 Budapest, Hungary
| | - Bence Szabó
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary
| | - Barbara Kispélyi
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Department of Prosthodontics, Semmelweis University, Szentkirályi utca 47. 1088 Budapest, Hungary
| | - Árpád Joób-Fancsaly
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária utca 52. 1085 Budapest, Hungary
| | - Krisztina Mikulás
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Department of Prosthodontics, Semmelweis University, Szentkirályi utca 47. 1088 Budapest, Hungary
| | - Gábor Varga
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Department of Oral Biology, Semmelweis University, Nagyvárad tér 4. 1089 Budapest, Hungary
| | - Péter Hegyi
- Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary; Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Szigeti út 12. 7624 Pécs, Hungary; Division of Pancreatic Diseases, Heart and Vascular Center, Semmelweis University, Városmajor utca 68. 1122 Budapest, Hungary
| | - Márton Kivovics
- Department of Community Dentistry, Semmelweis University, Szentkirályi utca 40. 1088 Budapest, Hungary; Centre for Translational Medicine, Semmelweis University, Üllői út 26. 1085 Budapest, Hungary.
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Hüfner M, David S, Brunello G, Kerberger R, Rauch N, Busch CV, Drescher D, Bourauel C, Becker K. Autoclaving-induced dimensional changes of three-dimensional printed surgical guides: An in vitro study. Clin Oral Implants Res 2023. [PMID: 37565539 DOI: 10.1111/clr.14158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/20/2023] [Accepted: 07/26/2023] [Indexed: 08/12/2023]
Abstract
OBJECTIVES Surgical guides are frequently used for dental implant placement. The aim of this study was to evaluate the impact of the 3D printing process itself and subsequent steam autoclaving on the dimensional stability of five different resin/printer combinations (RPCs). MATERIALS AND METHODS Fifty identical surgical guides (10 per group) were produced consisting of five RPCs. Half of the guides (5 per group) were steam autoclaved with cycle 1 (121°C, 1 bar, 20.5 min) and the other half with cycle 2 (134°C, 2 bar, 5.5 min). All guides were scanned with a structured-light (SL) 3D scanner before (T0) and after (T1) autoclaving. Linear measurements along the x-, y-, and z-axes were performed at landmarks on the original STL file and on SL scans at T0 and T1, respectively. Wilcoxon signed-rank test, Kruskal-Wallis test, and linear mixed-effects models were performed, depending on the analysis. RESULTS Three-dimensional printing was associated with significant dimensional alterations for all RPCs. Steam autoclaving using cycle 1 was associated with significant shrinkage in x- (1 RPC), y- (2 RPCs), and z-direction (2 RPCs), while cycle 2 was also associated with shrinkage in x- (2 RPCs), y- (1 RPC), and z-direction (1 RPC). One resin did not present any dimensional changes independently of the cycle. CONCLUSIONS The majority of the guides presented minor but significant shrinkage due to 3D printing itself and both steam autoclaving cycles, the extent varied between different RPCs. Whether these changes compromise implant placement accuracy remains to be investigated.
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Affiliation(s)
- Mira Hüfner
- Department of Orthodontics, University Hospital of Düsseldorf, Düsseldorf, Germany
| | - Samuel David
- Department of Orthodontics, University Hospital of Düsseldorf, Düsseldorf, Germany
| | - Giulia Brunello
- Department of Oral Surgery, University Hospital of Düsseldorf, Düsseldorf, Germany
- Department of Neurosciences, University of Padua, Padua, Italy
| | - Robert Kerberger
- Department of Orthodontics, University Hospital of Düsseldorf, Düsseldorf, Germany
| | - Nicole Rauch
- Department of Oral Surgery, University Hospital of Düsseldorf, Düsseldorf, Germany
| | - Caroline Viola Busch
- Department of Oral Surgery, University Hospital of Düsseldorf, Düsseldorf, Germany
| | - Dieter Drescher
- Department of Orthodontics, University Hospital of Düsseldorf, Düsseldorf, Germany
| | | | - Kathrin Becker
- Department of Orthodontics, University Hospital of Düsseldorf, Düsseldorf, Germany
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Dulla FA, Couso-Queiruga E, Chappuis V, Yilmaz B, Abou-Ayash S, Raabe C. Influence of alveolar ridge morphology and guide-hole design on the accuracy of static Computer-Assisted Implant Surgery with two implant macro-designs: An in vitro study. J Dent 2023; 130:104426. [PMID: 36652971 DOI: 10.1016/j.jdent.2023.104426] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/05/2023] [Accepted: 01/14/2023] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVES The primary aim of this in vitro study was to evaluate the influence of alveolar ridge morphologies on the accuracy of static Computer-Assisted Implant Surgery (sCAIS). The secondary aims were to evaluate the influence of guide-hole design and implant macro-design on the accuracy of the final implant position. METHODS Eighteen standardized partially edentulous maxillary models with two different types of alveolar ridge morphologies were used. Each model was scanned via cone beam computer tomography prior to implant placement and scanned with a laboratory scanner prior to and following implant placement using sCAIS. The postsurgical scans were superimposed on the initial treatment planning position to measure the deviations between planned and postsurgical implant positions. RESULTS Seventy-two implants were equally distributed to the study groups. Implants placed in healed alveolar ridges showed significantly lower mean deviations at the crest (0.36 ± 0.17 mm), apex (0.69 ± 0.36 mm), and angular deviation (1.86 ± 0.99°), compared to implants placed in fresh extraction sites (0.80 ± 0.29 mm, 1.61 ± 0.59 mm, and 4.33 ± 1.87°; all p<0.0001). Implants placed with a sleeveless guide-hole design demonstrated significantly lower apical (1.02 ± 0.66 mm) and angular (2.72 ± 1.93°) deviations compared to those placed with manufacturer's sleeves (1.27 ± 0.67 mm; p = 0.01, and 3.46 ± 1.9°; p = 0.02). Deep-threaded tapered bone level implants exhibited significantly lower deviations at the crest (0.49 ± 0.28 mm), apex (0.97 ± 0.63 mm), and angular deviations (2.63 ± 1.85°) compared to shallow-threaded parallel-walled bone level implants (0.67 ± 0.34 mm; p = 0.0005, 1.32 ± 0.67 mm; p = 0.003, and 3.56 ± 1.93°; p = 0.01). CONCLUSIONS The accuracy of the final implant position with sCAIS is determined by the morphology of the alveolar ridge, the design of the guide holes, and the macrodesign of the implant. CLINICAL SIGNIFICANCE Higher accuracy in the final implant position was observed with implants placed in healed alveolar ridge morphologies, in implants with deep-threaded tapered macro-design, and when sleeveless surgical guide holes were used.
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Affiliation(s)
- Fabrice Alain Dulla
- Department of Oral Surgery and Stomatology; School of Dental Medicine, University of Bern, Switzerland
| | - Emilio Couso-Queiruga
- ITI Scholar, Department of Oral Surgery and Stomatology; School of Dental Medicine, University of Bern, Switzerland
| | - Vivianne Chappuis
- Chair, Department of Oral Surgery and Stomatology; School of Dental Medicine, University of Bern, Switzerland
| | - Burak Yilmaz
- Faculty member, Department of Reconstructive Dentistry and Gerodontology; School of Dental Medicine, University of Bern, Switzerland; Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, OH, USA
| | - Samir Abou-Ayash
- Deputy Department Chair, Department of Reconstructive Dentistry and Gerodontology; School of Dental Medicine, University of Bern, Switzerland
| | - Clemens Raabe
- Senior Lecturer, Department of Oral Surgery and Stomatology; School of Dental Medicine, University of Bern, Switzerland.
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Accuracy of keyless vs drill-key implant systems for static computer-assisted implant surgery using two guide-hole designs compared to freehand implant placement: an in vitro study. Int J Implant Dent 2023; 9:4. [PMID: 36749441 PMCID: PMC9905371 DOI: 10.1186/s40729-023-00470-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/31/2023] [Indexed: 02/08/2023] Open
Abstract
PURPOSE This in vitro study aimed at comparing the accuracy of freehand implant placement with static computer-assisted implant surgery (sCAIS), utilizing a keyless and a drill-key implant system and two guide-hole designs. METHODS A total of 108 implants were placed in 18 partially edentulous maxillary models simulating two different alveolar ridge morphologies. 3D digital deviations between pre-planned and post-operative implant positions were obtained. Guide material reduction was assessed in the keyless implant system for the manufacturer's sleeve and sleeveless guide-hole designs. RESULTS sCAIS using a sleeveless guide-hole design demonstrated smaller mean angular, crestal and apical deviations compared to sCAIS utilizing a manufacturer's sleeve and the freehand group (2.6 ± 1.6°, vs 3.3 ± 1.9°, vs 4.0 ± 1.9°; 0.5 ± 0.3 mm, vs 0.6 ± 0.3 mm, vs 0.8 ± 0.3 mm; and 1.0 ± 0.5 mm, vs 1.2 ± 0.7 mm, vs 1.5 ± 0.6 mm). Smaller angular and apical mean deviations were observed in the keyless implant system as compared with the drill-key implant system (3.1 ± 1.7°, vs 3.5 ± 1.9°, p = 0.03; and 1.2 ± 0.6 mm, vs 1.4 ± 0.7 mm, p = 0.045). Overall, smaller angular, crestal, and apical deviations (p < 0.0001) were observed in healed alveolar ridges (2.4 ± 1.7°, 0.5 ± 0.3 mm, and 0.9 ± 0.5 mm) than in extraction sockets (4.2 ± 1.6°, 0.8 ± 0.3 mm, and 1.6 ± 0.5 mm). Higher mean volumetric material reduction was observed in sleeveless than in manufacturer's sleeve guide-holes (- 0.10 ± 0.15 mm3, vs - 0.03 ± 0.03 mm3, p = 0.006). CONCLUSIONS Higher final implant positional accuracy was observed in sCAIS for the keyless implant system, with a sleeveless guide-hole design, and in healed ridges. Sleeveless guide holes resulted in higher volumetric material reduction compared with the manufacturer's sleeve.
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Raabe C, Dulla FA, Yilmaz B, Chappuis V, Abou-Ayash S. Influence of drilling sequence and guide-hole design on the accuracy of static computer-assisted implant surgery in extraction sockets and healed sites-An in vitro investigation. Clin Oral Implants Res 2023; 34:320-329. [PMID: 36727584 DOI: 10.1111/clr.14042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 02/03/2023]
Abstract
OBJECTIVES To evaluate the effect of drilling sequence, guide-hole design, and alveolar ridge morphology on the accuracy of implant placement via static computer-assisted implant surgery (sCAIS). MATERIALS AND METHODS Standardized maxillary bone models including single-tooth gaps with fresh extraction sockets or healed alveolar ridge morphologies were evaluated in this study. Implants were placed using different drilling sequences (i.e., complete [CDS] or minimum [MDS]), and guide-hole designs (i.e., manufacturer's sleeve [MS] or sleeveless [SL] guide-hole designs). The time for implant placement via sCAIS procedures was also recorded. The angular, crestal, and apical three-dimensional deviations between planned and final implant positions were digitally obtained. Statistical analyses were conducted by a non-parametric three-way ANOVA (α = .05). RESULTS Based on a sample size analysis, a total of 72 implants were included in this study. Significantly higher implant position accuracy was found at healed sites compared to extraction sockets and in SL compared to MS guide-hole design in angular, crestal, and apical 3D deviations (p ≤ .048). A tendency for higher accuracy was observed for the CDS compared to the MDS, although the effect was not statistically significant (p = .09). The MDS required significantly shorter preparation times compared with CDS (p < .0001). CONCLUSION Implant placement via sCAIS resulted in higher accuracy in healed sites than extraction sockets, when using SL compared to MS guides, and tended to be more accurate when using CDS compared to MDS. Therefore, even though surgery time was shorter with MDS, its use should be limited to strictly selected cases.
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Affiliation(s)
- Clemens Raabe
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Fabrice Alain Dulla
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Burak Yilmaz
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland.,Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, Ohio, USA
| | - Vivianne Chappuis
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Samir Abou-Ayash
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
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Thanasrisuebwong P, Kulchotirat T, Hopfensperger LJ, Bencharit S. Influence of implant diameter on accuracy of static implant guided surgery: An in vitro study. J Prosthet Dent 2022:S0022-3913(22)00694-1. [PMID: 36470759 DOI: 10.1016/j.prosdent.2022.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/01/2022] [Accepted: 11/01/2022] [Indexed: 12/04/2022]
Abstract
STATEMENT OF PROBLEM Static guided implant surgery may be the most accurate method of implant placement to date. However, within the same guided implant system, whether accuracy is affected when placing a larger diameter implant that requires more drills than a smaller diameter implant is unclear. PURPOSE The purpose of this in vitro study was to evaluate the influence of implant diameter on the angulation and 3-dimensional (3D) deviations of posterior single implant placement using static guided surgery. MATERIAL AND METHODS A polyurethane dental cast was made with an edentulous site at the maxillary right first molar position. Identical implant planning for each of 3 dental implant diameters 3.3, 4.1, and 4.8 mm (Straumann BLT) were made, and surgical guides for each implant diameters were fabricated by stereolithography. Fifteen implants of each diameter (N=45) were placed in simulated casts. A scan body was placed and the cast was scanned using an intraoral scanner. The positional discrepancies of implant placement, including angulation as well as 3D implant cervical and apex area deviations, were compared with the planned position. Linear ANOVA single factor analysis (ɑ=.05) was used, and box plots were made. RESULTS The ranges of angulation deviations for 3.3-, 4.1-, and 4.8-mm implants were 3.6 degrees to 6.0 degrees, 3.7 degrees to 7.7 degrees, and 3.1 degrees to 6.7 degrees, respectively. The ranges of 3D implant entry deviations of 3.3-, 4.1-, and 4.8-mm implants were 0.96 to 1.4, 0.85 to 1.72, and 0.89 to 1.78 mm, respectively. The ranges of 3D implant apex of 3.3-, 4.1-, and 4.8-mm implants were 0.63 to 1.21, 0.64 to 1.48, and 0.48 to 1.27 mm, respectively. No statistically significant differences were found in any of the 3 measurements: P=.67 for deviation in angulation; P=.27 for 3D implant deviation of entry; and P=.3 for 3D implant deviation of the apex. CONCLUSIONS Implant diameters had no significant effect on placement deviations when a single posterior static guided surgery was used.
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Affiliation(s)
- Prakan Thanasrisuebwong
- Assistant Professor, Dental Implant Center, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Tharathip Kulchotirat
- Lecturer, School of Dentistry, King Mongkut's Institute of Technology, Bangkok, Thailand
| | - Liam J Hopfensperger
- Research Assistant, Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry and Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA
| | - Sompop Bencharit
- Professor and Assistant Dean for Innovation, Office of Oral Health Innovation, Department of Oral Rehabilitation, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, SC.
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