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Pitman J, Cosyn J, Christiaens V, Younes F, de Bruyckere T, Vervaeke S, Glibert M. Accuracy of immediately placed implants using surgical guides from different 3-dimensional printers: An in vitro study. Clin Implant Dent Relat Res 2024. [PMID: 38932561 DOI: 10.1111/cid.13354] [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: 11/16/2023] [Revised: 04/15/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024]
Abstract
AIM The aim of this study was to evaluate the accuracy of 3-dimensional (3D)-printed surgical guides for fully guided immediate implants from different manufacturers. METHODS Eighteen 3D printed fully guided surgical guides (split into 3 groups [n = 6] according to their manufacturer: Company, Desktop, or Lab), were used to place 72 implants (n = 24) in identical maxillary models. After placement, the mean global, angular, mesiodistal, buccopalatal, and vertical deviation at the platform and apex of the placed implants, relative to their preoperatively planned positions, was calculated. RESULTS Significant differences in global apex deviation, angular deviation, mesiodistal apex deviation, and vertical platform and apex deviation were found between the Lab and Desktop groups (p ≤ 0.007). Significant differences in mesiodistal platform and apex deviation and buccopalatal apex deviation were also found between the Company and Desktop groups (p ≤ 0.005). Finally, significant differences in buccopalatal apex deviation, and vertical platform and apex deviation were found between the Company and Lab groups (p ≤ 0.003). Mean differences between guide groups across all parameters never exceeded 0.5 mm or 1°. CONCLUSIONS The choice of 3D printer has a significant effect on the accuracy of fully guided immediate implants. However, the clinical relevance of these differences may be considered limited.
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Affiliation(s)
- Jeremy Pitman
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
| | - Jan Cosyn
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
| | - Véronique Christiaens
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
| | - Faris Younes
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
| | - Thomas de Bruyckere
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
| | - Stijn Vervaeke
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
| | - Maarten Glibert
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Oral Health Sciences, Ghent University, Ghent, Belgium
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Song SJ, Chu SM, Chu SJ, Saito H, Levin BP, Egbert NL, Sarnachiaro GO, Tarnow DP. A comparative analysis of dual-axis implants placed into maxillary anterior extraction sockets versus virtual planning with uniaxial implants: A simulated cone beam computed tomography study of implant length and diameter. J ESTHET RESTOR DENT 2023; 35:206-214. [PMID: 36628940 DOI: 10.1111/jerd.13011] [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: 10/18/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The biaxial nature of the anterior maxilla poses a surgical and restorative challenge in implant dentistry. The present study sought to investigate the apical socket perforation rate (ASPR) from a simulated uniaxial implant placement and to determine the effect of implant length and diameter on ASPR when a uniaxial implant was placed compared with the orientation of the pre-existing dual-axis implant. MATERIAL AND METHOD Cone beam computed tomography (CBCT) scans from the database of three private practices were searched for patients who received dual-axis implants within the esthetic zone in immediate tooth replacement therapy. A uniaxial implant was virtually placed using the pre-existing screw access channel of the dual-axis implant as a reference. The closest length and diameter were selected for the simulated implant. ASPR by the uniaxial implant was recorded. In addition, the affordable maximum length of a corresponding uniaxial implant that would avoid apical socket perforation was measured. RESULT Eighty-one patients with a total of 101 dual-axis dental implants were selected for analysis. A simulated virtual surgical planning with uniaxial implants revealed high ASPR (48.51%). When the length of the uniaxial implant was reduced to 11 and 9 mm, ASPR was decreased to 41.58% and 20.79%, respectively. CONCLUSION Dual-axis implant design effectively evades anatomical challenges in the anterior maxilla (esthetic zone). Considering the current evidence, efforts should be made to carefully consider the angular disparity between the extraction socket-alveolus complex and the future restorative emergence so that a harmonious biologic-esthetic result may be more predictably and consistently obtained.
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Affiliation(s)
- Seung Jun Song
- Division of Prosthodontics, Columbia University College of Dental Medicine, New York, New York, USA
| | - Stephanie M Chu
- Post-Graduate Periodontics, New York Harbor Healthcare System, US Department of Veterans Affairs, New York, New York, USA.,Private Practice
| | - Stephen J Chu
- Private Practice.,Ashman Department of Periodontology and Implant Dentistry, Department of Prosthodontics, New York University College of Dentistry, New York, New York, USA
| | - Hanae Saito
- Department of Advanced Sciences & Therapeutics, Division of Periodontics, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - Barry P Levin
- Private Practice.,Department of Periodontology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - Nicholas L Egbert
- Private Practice.,General Dentistry (AEGD) Residency, College of Dental Medicine at Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Guido O Sarnachiaro
- Private Practice.,Ashman Department of Periodontology and Implant Dentistry, Department of Prosthodontics, New York University College of Dentistry, New York, New York, USA
| | - Dennis P Tarnow
- Private Practice.,Division of Periodontics, Columbia University College of Dental Medicine, New York, New York, USA
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Özyurt A. Does hyperbaric oxygen therapy pressure reduce mechanical stability of implants? JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:59. [PMID: 35838809 PMCID: PMC9287222 DOI: 10.1007/s10856-022-06680-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Hyperbaric oxygen therapy (HBOT) has beneficial effects for patients complaining of poor bone healing such as related to diabetes mellitus. However, it is known that changing pressure conditions might cause dental barotrauma in the oral cavity. The aim of this study was to evaluate implant mechanical stability under HBOT pressure. Thirty-five implants were placed in bone blocks divided into five groups as control, 1, 3, 5, 7 HBOT cycles. In one cycle, 2.4 bar 100% oxygen pressure was performed. Implants' stabilities were measured with resonance frequency analysis (RFA) and removal torque (RT) meter device. Data were analyzed using Shapiro Wilk, ANOVA, and Tukey HSD tests for RFA and RT values considering p < 0.05 as the statistical significance level. RFA and RT values were compared by Pearson correlation coefficiency. RFA values of 5 and 7 HBOT cycles were significantly lower than 1, 3 HBOT and control group (p < 0.001). There was no statistical difference between 5 and 7 HBOT cycles RFA values. HBOT pressure simulation slightly but statistically decreased the stability for the implants exposed to 5 and 7 HBOT cycles. Graphical abstract.
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Affiliation(s)
- Anıl Özyurt
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dokuz Eylül University, İzmir, 35340, Turkey.
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Primary Stability of Conventionally Tapered Versus Reverse Tapered Body Shift Implants Under Varying Bone Support Conditions—An In-Vitro Study. J Med Biol Eng 2022. [DOI: 10.1007/s40846-022-00736-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Heitzer M, Kniha K, Katz MS, Winnand P, Peters F, Möhlhenrich SC, Hölzle F, Modabber A. The primary stability of two dental implant systems in low-density bone. Int J Oral Maxillofac Surg 2022; 51:1093-1100. [PMID: 35339332 DOI: 10.1016/j.ijom.2022.02.012] [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: 04/06/2021] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 11/19/2022]
Abstract
Primary stability in low-density bone is crucial for the long-term success of implants. Tapered implants have shown particularly favourable properties under such conditions. The aim of this study was to compare the primary stability of tapered titanium and novel cylindrical zirconia dental implant systems in low-density bone. Fifty implants (25 tapered, 25 cylindrical) were placed in the anterior maxillary bone of cadavers meeting the criteria of low-density bone. The maximum insertion (ITV) and removal (RTV) torque values were recorded, and the implant stability quotients (ISQ) determined. To establish the isolated influence of cancellous bone on primary stability, the implantation procedure was performed in standardized low-density polyurethane foam bone blocks (cancellous bone model) using the same procedure. The primary stability parameters of both implant types showed significant positive correlations with bone density (Hounsfield units) and cortical thickness. In the cadaver, the cylindrical zirconia implants showed a significantly higher mean ISQ when compared to the tapered titanium implants (50.58 vs 37.26; P < 0.001). Pearson analysis showed significant positive correlations between ITV and ISQ (P = 0.016) and between RTV and ISQ (P = 0.035) for the cylindrical zirconia implants; no such correlations were observed for the tapered titanium implants. Within the limitations of this study, the results indicate that cylindrical zirconia implants represent a comparable viable treatment option to tapered titanium implants in terms of primary implant stability in low-density human bone.
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Affiliation(s)
- M Heitzer
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany.
| | - K Kniha
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - M S Katz
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - P Winnand
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - F Peters
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - S C Möhlhenrich
- Department of Orthodontics, University of Witten/Herdecke, Witten, Germany
| | - F Hölzle
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - A Modabber
- Department of Oral and Craniomaxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
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Chu SJ, Sarnachiaro GO, Mieleszko AJ, Nicolay OF. Managing restorative space, color matching, and tooth replacement with a novel implant through interdisciplinary treatment: A case report of partial anodontia and malformed teeth in the esthetic zone. J ESTHET RESTOR DENT 2020; 33:185-193. [PMID: 32945584 DOI: 10.1111/jerd.12649] [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: 06/30/2020] [Revised: 08/11/2020] [Accepted: 08/16/2020] [Indexed: 11/28/2022]
Abstract
A case report of tooth agenesis and excessive intraarch space due to tooth size discrepancies and malformed teeth is presented. Interdisciplinary treatment including orthodontics, implant surgery, prosthodontics, and laboratory fabrication with dissimilar restoration and material types was used to accomplish an esthetic and functional outcome. Proper diagnosis of individual tooth width and proportion were key elements in treatment. CLINICAL SIGNIFICANCE: Knowledge and understanding of the relationships of the mandibular to maxillary anterior teeth and shade management of dissimilar restoration types will allow the interdisciplinary team to achieve the desired esthetic restorative result.
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Affiliation(s)
- Stephen J Chu
- Ashman Department of Periodontology and Implant Dentistry, Department of Prosthodontics, New York University College of Dentistry, New York, New York, USA
| | | | | | - Olivier F Nicolay
- Department of Orthodontics, New York University College of Dentistry, New York, New York, USA
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