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Salem D, Reher P, Evans JL, Mansour MH. Exploring digital technologies used in the design and manufacture of craniofacial implant surgical guides: A scoping review. J Prosthet Dent 2024; 131:1264-1270. [PMID: 36801144 DOI: 10.1016/j.prosdent.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 02/19/2023]
Abstract
STATEMENT OF PROBLEM Unlike intraoral implants, digitally planned surgical templates used for guiding the ideal position of the craniofacial implants are not well established, and clear methods and guidelines for their design and construction are lacking. PURPOSE The purpose of this scoping review was to identify the publications that used a full or partial computer-aided design and computer-aided manufacture (CAD-CAM) protocol to create a surgical guide that achieves the correct positioning of craniofacial implants to retain a silicone facial prosthesis. MATERIAL AND METHODS A systematic search was conducted in MEDLINE/PubMed, Web of Science, Embase, and Scopus for articles published before November 2021 in the English language. Articles needed to satisfy the eligibility criterion of in vivo articles that created a surgical guide with digital technology for inserting titanium craniofacial implants to hold a silicone facial prosthesis. Articles that inserted implants in the oral cavity or upper alveolus only and articles that did not describe the structure and retention of the surgical guide were excluded. RESULTS Ten articles were included in the review; all were clinical reports. Two of the articles used a CAD-only approach alongside a conventionally constructed surgical guide. Eight articles described applying a complete CAD-CAM protocol for the implant guides. The digital workflow varied considerably depending on the software program, design, and retention of guides. Only 1 report described a follow-up scanning protocol to verify the accuracy of the final implant positions compared with the planned positions. CONCLUSIONS Digitally designed surgical guides can be an excellent adjunct to accurately place titanium implants in the craniofacial skeleton for support of silicone prostheses. A sound protocol for the design and retention of the surgical guides will enhance the use and accuracy of craniofacial implants in prosthetic facial rehabilitation.
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Affiliation(s)
- Doaa Salem
- PhD student, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD, Australia.
| | - Peter Reher
- Professor, School of M edicine and Dentistry, Griffith University, Gold Coast, QLD, Australia
| | - Jane L Evans
- Professor, School of M edicine and Dentistry, Griffith University, Gold Coast, QLD, Australia
| | - Mohammed H Mansour
- Adjunct Associate Professor, School of Dentistry, University of Queensland, Brisbane, QLD, Australia
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Sourvanos D, Sun H, Zhu TC, Dimofte A, Byrd B, Busch TM, Cengel KA, Neiva R, Fiorellini JP. Three-dimensional printing of the human lung pleural cavity model for PDT malignant mesothelioma. Photodiagnosis Photodyn Ther 2024; 46:104014. [PMID: 38346466 DOI: 10.1016/j.pdpdt.2024.104014] [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: 10/31/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 03/18/2024]
Abstract
OBJECTIVE The primary aim was to investigate emerging 3D printing and optical acquisition technologies to refine and enhance photodynamic therapy (PDT) dosimetry in the management of malignant pleural mesothelioma (MPM). MATERIALS AND METHODS A rigorous digital reconstruction of the pleural lung cavity was conducted utilizing 3D printing and optical scanning methodologies. These reconstructions were systematically assessed against CT-derived data to ascertain their accuracy in representing critical anatomic features and post-resection topographical variations. RESULTS The resulting reconstructions excelled in their anatomical precision, proving instrumental translation for precise dosimetry calculations for PDT. Validation against CT data confirmed the utility of these models not only for enhancing therapeutic planning but also as critical tools for educational and calibration purposes. CONCLUSION The research outlined a successful protocol for the precise calculation of light distribution within the complex environment of the pleural cavity, marking a substantive advance in the application of PDT for MPM. This work holds significant promise for individualizing patient care, minimizing collateral radiation exposure, and improving the overall efficiency of MPM treatments.
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Affiliation(s)
- Dennis Sourvanos
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA; Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA.
| | - Hongjing Sun
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Timothy C Zhu
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Andreea Dimofte
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Brook Byrd
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Theresa M Busch
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Keith A Cengel
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Rodrigo Neiva
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
| | - Joseph P Fiorellini
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
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Bonato P, Bagno A. Replace or Regenerate? Diverse Approaches to Biomaterials for Treating Corneal Lesions. Biomimetics (Basel) 2024; 9:202. [PMID: 38667213 PMCID: PMC11047895 DOI: 10.3390/biomimetics9040202] [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: 03/04/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
The inner structures of the eye are protected by the cornea, which is a transparent membrane exposed to the external environment and subjected to the risk of lesions and diseases, sometimes resulting in impaired vision and blindness. Several eye pathologies can be treated with a keratoplasty, a surgical procedure aimed at replacing the cornea with tissues from human donors. Even though the success rate is high (up to 90% for the first graft in low-risk patients at 5-year follow-up), this approach is limited by the insufficient number of donors and several clinically relevant drawbacks. Alternatively, keratoprosthesis can be applied in an attempt to restore minimal functions of the cornea: For this reason, it is used only for high-risk patients. Recently, many biomaterials of both natural and synthetic origin have been developed as corneal substitutes to restore and replace diseased or injured corneas in low-risk patients. After illustrating the traditional clinical approaches, the present paper aims to review the most innovative solutions that have been recently proposed to regenerate the cornea, avoiding the use of donor tissues. Finally, innovative approaches to biological tissue 3D printing and xenotransplantation will be mentioned.
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Affiliation(s)
| | - Andrea Bagno
- Department of Industrial Engineering, University of Padua, 35131 Padua, Italy
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Lopez J, Subramanian T, Stambuk H, Schreyer M, Woods R, Scholfield D, Wong R, Cohen MA, Shah J, Ganly I. CAD/CAM-assisted ablative surgery and intraoperative brachytherapy for pediatric skull-base sarcomas. Head Neck 2023; 45:E61-E66. [PMID: 37814997 PMCID: PMC11187774 DOI: 10.1002/hed.27534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/26/2023] [Accepted: 09/21/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND Head and neck (H&N) sarcomas in children can poise numerous challenges to the surgical oncologist and require multidisciplinary input and meticulous surgical planning. The application of computer-assisted design/computer-assisted manufacturing (CAD/CAM) has been extensively examined in H&N reconstruction in adults, but its utility in ablative oncologic surgery in children warrants further examination. We present preliminary results utilizing CAD/CAM techniques to assist in planning tumor resections and the application of intra-operative radiation in children with skull-base sarcomas. METHODS A retrospective cohort review of all pediatric patients who presented to a tertiary care cancer center for surgical resection of a skull-base malignancy was performed between 1980 and 2021. All children under 18 years of age with diagnosis of a skull-base sarcoma as confirmed with imaging and pathology were analyzed. RESULTS A total of 21 children were identified but only four children with skull-base sarcomas had diagnostic imaging available in whom computer-assisted volumetric analyses were generated. In these cases, CAD/CAM was used to plan surgical approaches and intraoperative radiotherapy, significantly aiding in treatment for these complicated pediatric cases. CONCLUSION CAD/CAM planning for oncologic resection has huge potential. Here we have shown its utility in pre-operative surgical planning and for administration of intraoperative radiation therapy. Future studies are needed to examine its value in facilitating intraoperative surgical management and patient outcomes, as well as cost effectiveness.
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Affiliation(s)
- Joseph Lopez
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
- Department of Surgery, Division of Pediatric Head & Neck Surgery, AdventHealth for Children
| | - Tejas Subramanian
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
- Weill Cornell Medical College New York, New York
| | - Hilda Stambuk
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mark Schreyer
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Robbie Woods
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
| | - Daniel Scholfield
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
| | - Richard Wong
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
| | - Marc A. Cohen
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
| | - Jatin Shah
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
| | - Ian Ganly
- Department of Surgery, Division of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center New York, New York
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Elbashti M, Molinero-Mourelle P, Aswehlee A, Bornstein MM, Abou-Ayash S, Schimmel M, Ella B, Naveau A. Effect of triangular mesh resolution on the geometrical trueness of segmented CBCT maxillofacial data into STL format. J Dent 2023; 138:104722. [PMID: 37742810 DOI: 10.1016/j.jdent.2023.104722] [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: 08/27/2022] [Revised: 08/28/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023] Open
Abstract
OBJECTIVES To determine the optimal level of mesh reduction that would maintain acceptable levels of geometrical trueness while also minimizing the impact on other parameters such as file size and processing time. METHODS Intraoral and extraoral maxillofacial defects were created on 8 cadaver heads and scanned by using a CBCT scanner (NewTom 3D Imaging, Verona). DICOM data were segmented to produce head (n=8) and skull models (n=8) saved as standard tessellation language (STL) files. A further processing of head models was preformed to produce face (n=8) and ear models (n=8). A mesh reduction process was performed for each STL model (reference, R0) by generating 50% (R1), 75% (R2), and 90% (R3) reductions. The 3 datasets were compared to the R0 file using 3D evaluation software (GOM Inspect) using a global best-fit algorithm, to calculate the root mean square (RMS) deviations. Statistical analyses were performed at a level of significance of α=0.05. RESULTS There was no 3D deviation after the 50% triangular mesh reduction in the 4 datasets. Minor 3D deviations were observed after 75% reduction, in all groups. After 90% reduction, higher 3D deviations were observed, and especially in head and skull. Statistically significant increase in 3D deviations was observed with higher degrees of mesh reduction (p < 0.001). CONCLUSION The resolution of CBCT-based maxillofacial defect models can be reduced up to 50%, with neglectable concern to inaccuracy. CLINICAL SIGNIFICANCE Accurate maxillofacial models can be obtained from CBCT DICOM files after segmentation and export as STL files, even when the mesh resolution is reduced up to 50%. This information can be valuable for practitioners and researchers working with 3D models of maxillofacial defects.
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Affiliation(s)
- Mahmoud Elbashti
- Department of Maxillofacial Prosthetics, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Pedro Molinero-Mourelle
- Department of Conservative Dentistry and Orofacial Prosthodontics, Complutense University of Madrid, Madrid, Spain; Department of Reconstructive Dentistry and Gerodontology, University of Bern, Bern, Switzerland.
| | - Amel Aswehlee
- Department of Dental Technology, University of Tripoli, Tripoli, Libya.
| | - Michael M Bornstein
- Department of Oral Health & Medicine, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland.
| | - Samir Abou-Ayash
- Department of Reconstructive Dentistry and Gerodontology, University of Bern, Bern, Switzerland.
| | - Martin Schimmel
- Department of Reconstructive Dentistry and Gerodontology, University of Bern, Bern, Switzerland, and Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Switzerland.
| | - Bruno Ella
- Oral Surgery Department, School of Surgery, Bordeaux University Hospital, Bordeaux, France.
| | - Adrien Naveau
- Department of Prosthodontics, University of Bordeaux, Bordeaux, France.
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Abad-Coronel C, Pazán DP, Hidalgo L, Larriva Loyola J. Comparative Analysis between 3D-Printed Models Designed with Generic and Dental-Specific Software. Dent J (Basel) 2023; 11:216. [PMID: 37754336 PMCID: PMC10529710 DOI: 10.3390/dj11090216] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/28/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023] Open
Abstract
With the great demand in the market for new dental software, the need has been seen to carry out a precision study for applications in digital dentistry, for which there is no comparative study, and there is a general ignorance regarding their applications. The purpose of this study was to investigate the accuracy differences between digital impressions obtained using generic G-CAD (general CAD) and D-CAD (CAD dental) software. Today, there is a difference between the design software used in dentistry and these in common use. Thus, it is necessary to make a comparison of precision software for specific and generic dental use. We hypothesized that there is no significant difference between the software for specific and general dental use. METHODS A typodont was digitized with an intraoral scanner and the models obtained were exported in STL format to four different softwares (Autodesk MeshMixer 3.5, Exocad Dental, Blender for dental, and InLAB). The STL files obtained by each software were materialized using a 3D printer. The printed models were scanned and exported in STL files, with which six pairs of groups were formed. The groups were compared using analysis software (3D Geomagic Control X) by superimposing them in the initial alignment order and using the best fit method. RESULTS There were no significant differences between the four analyzed software types; however, group 4, composed of the combination of D-CAD (Blender-InLAB), obtained the highest average (-0.0324 SD = 0.0456), with a higher accuracy compared to the group with the lowest average (group 5, composed of the combination of the Meshmixer and Blender models), a generic software and a specific software (0.1024 SD = 0.0819). CONCLUSION Although no evidence of significant difference was found regarding the accuracy of 3D models produced by G-CAD and D-CAD, combinations of groups where specific dental design software was present showed higher accuracy (precision and trueness). The comparison of the 3D graphics obtained with the superimposition of the digital meshes of the printed models performed with the help of the analysis software using the best fit method, replicating the same five reference points for the six groups formed, evidenced a greater tolerance in the groups using D-CAD.
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Affiliation(s)
- Cristian Abad-Coronel
- CAD/CAM Materials and Digital Dentistry Research Group, Faculty of Dentistry, Universidad de Cuenca, Cuenca 010107, Ecuador
| | - Doménica Patricia Pazán
- Faculty of Dentistry, Universidad de Cuenca, Cuenca 010101, Ecuador; (D.P.P.); (L.H.); (J.L.L.)
| | - Lorena Hidalgo
- Faculty of Dentistry, Universidad de Cuenca, Cuenca 010101, Ecuador; (D.P.P.); (L.H.); (J.L.L.)
| | - Jaime Larriva Loyola
- Faculty of Dentistry, Universidad de Cuenca, Cuenca 010101, Ecuador; (D.P.P.); (L.H.); (J.L.L.)
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Tanveer W, Ridwan-Pramana A, Molinero-Mourelle P, Forouzanfar T. Applications of CAD/CAM Technology for Craniofacial Implants Placement and Manufacturing of Auricular Prostheses-Systematic Review. J Clin Med 2023; 12:5950. [PMID: 37762891 PMCID: PMC10532239 DOI: 10.3390/jcm12185950] [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: 08/03/2023] [Revised: 08/26/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
This systematic review was aimed at gathering the clinical and technical applications of CAD/CAM technology for craniofacial implant placement and processing of auricular prostheses based on clinical cases. According to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, an electronic data search was performed. Human clinical studies utilizing digital planning, designing, and printing systems for craniofacial implant placement and processing of auricular prostheses for prosthetic rehabilitation of auricular defects were included. Following a data search, a total of 36 clinical human studies were included, which were digitally planned and executed through various virtual software to rehabilitate auricular defects. Preoperative data were collected mainly through computed tomography scans (CT scans) (55 cases); meanwhile, the most common laser scanners were the 3dMDface System (3dMD LLC, Atlanta, Georgia, USA) (6 cases) and the 3 Shape scanner (3 Shape, Copenhagen, Denmark) (6 cases). The most common digital design software are Mimics Software (Mimics Innovation Suite, Materialize, Leuven, Belgium) (18 cases), Freeform software (Freeform, NC, USA) (13 cases), and 3 Shape software (3 Shape, Copenhagen, Denmark) (12 cases). Surgical templates were designed and utilized in 35 cases to place 88 craniofacial implants in auricular defect areas. The most common craniofacial implants were Vistafix craniofacial implants (Entific Medical Systems, Goteborg, Sweden) in 22 cases. A surgical navigation system was used to place 20 craniofacial implants in the mastoid bone. Digital applications of CAD/CAM technology include, but are not limited to, study models, mirrored replicas of intact ears, molds, retentive attachments, customized implants, substructures, and silicone prostheses. The included studies demonstrated a predictable clinical outcome, reduced the patient's visits, and completed the prosthetic rehabilitation in reasonable time and at reasonable cost. However, equipment costs and trained technical staff were highlighted as possible limitations to the use of CAD/CAM systems.
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Affiliation(s)
- Waqas Tanveer
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Center, 1081 HV Amsterdam, The Netherlands
| | - Angela Ridwan-Pramana
- Center for Special Care in Dentistry, Department of Maxillofacial Prosthodontics, Stichting Bijzondere Tandheelkunde, 1081 LA Amsterdam, The Netherlands;
| | - Pedro Molinero-Mourelle
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, CHE 3012 Bern, Switzerland;
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
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Jablonski RY, Coward TJ, Bartlett P, Keeling AJ, Bojke C, Pavitt SH, Nattress BR. IMproving facial PRosthesis construction with contactlESs Scanning and Digital workflow (IMPRESSeD): study protocol for a feasibility crossover randomised controlled trial of digital versus conventional manufacture of facial prostheses in patients with orbital or nasal facial defects. Pilot Feasibility Stud 2023; 9:110. [PMID: 37400919 DOI: 10.1186/s40814-023-01351-w] [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: 09/24/2022] [Accepted: 06/20/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND Facial prostheses can have a profound impact on patients' appearance, function and quality of life. There has been increasing interest in the digital manufacturing of facial prostheses which may offer many benefits to patients and healthcare services compared with conventional manufacturing processes. Most facial prosthesis research has adopted observational study designs with very few randomised controlled trials (RCTs) documented. There is a clear need for a well-designed RCT to compare the clinical and cost-effectiveness of digitally manufactured facial prostheses versus conventionally manufactured facial prostheses. This study protocol describes the planned conduct of a feasibility RCT which aims to address this knowledge gap and determine whether it is feasible to conduct a future definitive RCT. METHODS The IMPRESSeD study is a multi-centre, 2-arm, crossover, feasibility RCT with early health technology assessment and qualitative research. Up to 30 participants with acquired orbital or nasal defects will be recruited from the Maxillofacial Prosthetic Departments of participating NHS hospitals. All trial participants will receive 2 new facial prostheses manufactured using digital and conventional manufacturing methods. The order of receiving the facial prostheses will be allocated centrally using minimisation. The 2 prostheses will be made in tandem and marked with a colour label to mask the manufacturing method to the participants. Participants will be reviewed 4 weeks following the delivery of the first prosthesis and 4 weeks following the delivery of the second prosthesis. Primary feasibility outcomes include eligibility, recruitment, conversion, and attrition rates. Data will also be collected on patient preference, quality of life and resource use from the healthcare perspective. A qualitative sub-study will evaluate patients' perception, lived experience and preference of the different manufacturing methods. DISCUSSION There is uncertainty regarding the best method of manufacturing facial prostheses in terms of clinical effectiveness, cost-effectiveness and patient acceptability. There is a need for a well-designed RCT to compare digital and conventional manufacturing of facial prostheses to better inform clinical practice. The feasibility study will evaluate key parameters needed to design a definitive trial and will incorporate early health technology assessment and a qualitative sub-study to identify the potential benefits of further research. TRIAL REGISTRATION ISRCTN ISRCTN10516986). Prospectively registered on 08 June 2021, https://www.isrctn.com/ISRCTN10516986 .
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Affiliation(s)
- Rachael Y Jablonski
- Department of Restorative Dentistry, School of Dentistry, University of Leeds, Leeds, UK.
| | - Trevor J Coward
- Academic Centre of Reconstructive Science, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| | - Paul Bartlett
- Maxillofacial Laboratory, Leeds Dental Institute, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Andrew J Keeling
- Department of Restorative Dentistry, School of Dentistry, University of Leeds, Leeds, UK
| | - Chris Bojke
- Academic Unit of Health Economics, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
| | - Sue H Pavitt
- Dental Translational and Clinical Research Unit, School of Dentistry, University of Leeds, Leeds, UK
| | - Brian R Nattress
- Department of Restorative Dentistry, School of Dentistry, University of Leeds, Leeds, UK
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Aldebes A, Al-Khanati NM, Abou Nassar J, Kharboutly NAD, Aldamman F. Effect of restoration material on marginal bone resorption around modified anatomic zirconia dental implants: A randomised controlled trial. Ann Med Surg (Lond) 2022; 80:104313. [PMID: 36045765 PMCID: PMC9422372 DOI: 10.1016/j.amsu.2022.104313] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022] Open
Abstract
Objective The primary aim of this study was to determine the effect of implant-supported porcelain-fused-to-metal (PFM) and indirect-composite-resin (ICR) fixed dental prostheses on peri-implant marginal bone resorption (MBR) in custom-made anatomic modified zirconia dental implants. Methods A prospective randomized controlled clinical trial was conducted. Participants with premolars indicated for dental extractions were recruited into this study to receive a single-unit implant-supported fixed dental prosthesis. Modified anatomic zirconia implants with thorny-retentive surfaces were placed and loaded randomly after 3 months with either PFM or ICR crowns. Participants were recalled after 12 and 18 months for radiographic evaluation of peri-implant MBR. Implants survival was also reported. Results 18 out of 20 zirconia implants were included in all study phases. 18-month survival rate was 90%. After 12 months of implant placement, the mean MBR values were 0.53 (±0.21) mm and 0.60 (±0.14) mm in the ICR group compared to 0.67 (±0.16) mm and 0.61 (±0.27) mm in the PFM group. In the 18-month follow-up, the mean MBR values were 0.61 (±0.27) and 0.67 (±0.16) mm in the ICR group compared to 0.77 (±0.29) and 0.77 (±0.27) mm in the PFM group. No significant differences were found in MBR mean values between study groups at 12- and 18-month follow-up points. Conclusion This study showed that PFM and ICR crowns were viable zirconia-implant-supported restorations with no preference regarding MBR after 18 months. Nevertheless, long-term evaluations are warranted. Custom-made zirconia implants with new design of their macro-retentive features (thorns) were used in this clinical study. They showed success rate of 90% with all failures occurred early before loading. Peri-implant marginal bone resorption (MBR) ranged within acceptable values after 12 and 18 months. No significant differences in MBRs were seen between implant-supported metal-ceramic and indirect composite restorations.
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Affiliation(s)
- Alaa Aldebes
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, Damascus University, Damascus, Syria
| | - Nuraldeen Maher Al-Khanati
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Damascus University, Damascus, Syria
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Syrian Private University, Damascus, Syria
- Corresponding author. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Syrian Private University, P.O. Box 36822, Damascus, Syria. ,
| | - Jihad Abou Nassar
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, Damascus University, Damascus, Syria
| | - Nour Al-Deen Kharboutly
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, Damascus University, Damascus, Syria
| | - Feras Aldamman
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, Damascus University, Damascus, Syria
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ULUSOY AC, ŞENER E, ÖZDEN YÜCE M, ÖZER MA, KARAMAN A, GÖKMEN F, BOYACIOĞLU H, GÜNERİ P. THE EFFECTS OF 3D MODELING ON PLANNING OF MAXILLOFACIAL SURGERY: A Preliminary CBCT STUDY. CUMHURIYET DENTAL JOURNAL 2022. [DOI: 10.7126/cumudj.1035066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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