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Moraschini V, Louro RS, Son A, Calasans-Maia MD, Sartoretto SC, Shibli JA. Long-term survival and success rate of dental implants placed in reconstructed areas with extraoral autogenous bone grafts: A systematic review and meta-analysis. Clin Implant Dent Relat Res 2024; 26:469-481. [PMID: 38450931 DOI: 10.1111/cid.13319] [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: 09/25/2023] [Revised: 01/22/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
OBJECTIVE To evaluate the long-term survival and success rates of implants placed in reconstructed areas using microvascularized or non-microvascularized extraoral bone grafts. MATERIALS AND METHODS An electronic search was performed in five databases and in gray literature for articles published until June, 2023. The eligibility criteria comprised observational studies (prospective or retrospective) and clinical trials, reporting survival and success rates of implants placed in extraoral bone grafts. A meta-analysis (implant failure) was categorized into subgroups based on the type of bone graft used. The risk of bias within studies was assessed using the Newcastle-Ottawa Scale. RESULTS Thirty-one studies met the inclusion criteria. The mean follow-up time was 92 months. The summary estimate of survival rate at the implant level were 94.9% (CI: 90.1%-97.4%) for non-vascularized iliac graft, 96.5% (CI: 91.4%-98.6%) for non-vascularized calvaria graft, and 92.3% (CI: 89.1%-94.6%) for vascularized fibula graft. The mean success rate and marginal bone loss (MBL) were 83.2%; 2.25 mm, 92.2%; 0.93 mm, and 87.6%; 1.49 mm, respectively. CONCLUSIONS Implants placed in areas reconstructed using extraoral autogenous bone graft have high long-term survival rates and low long-term MBLs. The data did not demonstrate clinically relevant differences in the survival, success, or MBL of grafts from different donor areas or with different vascularization. This systematic review was registered in INPLASY under number INPLASY202390004.
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Affiliation(s)
- Vittorio Moraschini
- Department of Periodontology, School of Dentistry, Veiga de Almeida University, Rio de Janeiro, Brazil
- Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil
| | - Rafael Seabra Louro
- Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil
| | - Andrea Son
- Department of Implant Dentistry, School of Dentistry, Guarulhos University, São Paulo, Brazil
| | | | | | - Jamil Awad Shibli
- Department of Implant Dentistry, School of Dentistry, Guarulhos University, São Paulo, Brazil
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Sriram S, Njoroge MW, Lopez CD, Zhu L, Heron MJ, Zhu KJ, Yusuf CT, Yang R. Optimal Treatment Order With Fibula-Free Flap Reconstruction, Oncologic Treatment, and Dental Implants: A Systematic Review and Meta-Analysis. J Craniofac Surg 2024; 35:1065-1073. [PMID: 38666786 DOI: 10.1097/scs.0000000000010127] [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: 12/10/2023] [Accepted: 02/05/2024] [Indexed: 06/04/2024] Open
Abstract
Head and neck cancer (HNC) patients benefit from craniofacial reconstruction, but no clear guidance exists for rehabilitation timing. This meta-analysis aims to clarify the impact of oncologic treatment order on implant survival. An algorithm to guide placement sequence is also proposed in this paper. PubMed, Embase, and Web of Science were searched for studies on HNC patients with ablative and fibula-free flap (FFF) reconstruction surgeries and radiotherapy (RTX). Primary outcomes included treatment sequence, implant survival rates, and RTX dose. Of 661 studies, 20 studies (617 implants, 199 patients) were included. Pooled survival rates for implants receiving >60 Gy RTX were significantly lower than implants receiving < 60 Gy (82.8% versus 90.1%, P =0.035). Placement >1 year after RTX completion improved implant survival rates (96.8% versus 82.5%, P =0.001). Implants receiving pre-placement RTX had increased survival with RTX postablation versus before (91.2% versus 74.8%, P <0.001). One hundred seventy-seven implants were placed only in FFF with higher survival than implants placed in FFF or native bone (90.4% versus 83.5%, P =0.035). Radiotherapy is detrimental to implant survival rates when administered too soon, in high doses, and before tumor resection. A novel evidence-based clinical decision-making algorithm was presented for utilization when determining the optimal treatment order for HNC patients. The overall survival of dental prostheses is acceptable, reaffirming their role as a key component in rehabilitating HNC patients. Considerations must be made regarding RTX dosage, timing, and implant location to optimize survival rates and patient outcomes for improved functionality, aesthetics, and comfort.
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Affiliation(s)
- Shreya Sriram
- Department of Plastic and Reconstructive Surgery, Johns Hopkins Hospital, Baltimore, MD
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V N K, Ramanarayanan V, V M, Janakiram C, Subash P, Iyer S. Challenges during implant-assisted prosthetic rehabilitation in fibula reconstructed jaws and its management: a scoping review protocol. Int J Surg Protoc 2024; 28:52-57. [PMID: 38854713 PMCID: PMC11161297 DOI: 10.1097/sp9.0000000000000022] [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: 05/14/2023] [Accepted: 08/07/2023] [Indexed: 06/11/2024] Open
Abstract
Introduction Oral cancer is the sixth most prevalent cancer type worldwide. Patients are placed in a crippling predicament due to the functional and psychosocial difficulties brought on by the illness and its treatments. Both surgeons and maxillofacial prosthodontists may encounter challenges with reconstruction and therapy following cancer treatment. Over 20 years, the fibula has remained the mainstay of reconstructions for head and neck cancer. Maxillary and mandibular jaws with fibula reconstructions can use fixed or removable prosthetic rehabilitation solutions. The proposed scoping review aims to ascertain the volume and nature of evidence concerning the difficulties and corrective measures in the prosthetic rehabilitation of fibula-reconstructed head and neck cancer cases. The findings will aid in improving the prosthetic treatment care for the affected population. Materials and Methods The Joanna Briggs Institute (JBI) scoping review protocol will be followed in developing and reporting the scoping review methodology. Methods to identify the relevant literature will involve the systematic search of databases like PubMed, Scopus, Google Scholar, Cochrane Library, and gray literature sources for pertinent articles on the subject. Only papers published in English literature will be considered for the review, and the data collection period is limited to the past 20 years. The screening process will utilize defined inclusion/exclusion criteria for Title/Abstract and Full-text screening by two independent reviewers in covidence, and a third reviewer will resolve any conflicts. The data extracted will include specific details about the participants, concept, population, study methods, challenges encountered during prosthetic rehabilitation, and their management. Inductive thematic analysis and descriptive statistics will be applied where appropriate. The narrative synthesis of the evidence will be accomplished through data extraction in a tabular format, and the results will be presented as a narrative summary.
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Affiliation(s)
| | | | - Manju V
- Department of Prosthodontics and Implantology
| | | | | | - Subramania Iyer
- Centre for Plastic and Reconstructive Surgery, Centre for Head and Neck Surgery and Oncology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Nham TT, Koudougou C, Piot B, Corre P, Bertin H, Longis J. Prosthetic rehabilitation in patients with jaw reconstruction by fibula free flap: A systematic review. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024; 125:101735. [PMID: 38072231 DOI: 10.1016/j.jormas.2023.101735] [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: 10/08/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 05/01/2024]
Abstract
This systematic review aimed to evaluate the dental prosthetic rehabilitation (DPR) in patients after jaw reconstruction with fibula free flap. Four databases were searched from January 2000 to January 2023. Of the 2507 studies identified, 36 observational studies were included. Cancer was the most common surgical indications for jawbone resection with 58.3 % of cases followed by benign tumours which representing 24 %. The DPR rate was estimated at 51.6 % across the studies (ranging from 38 % to 55 % depending on the benign or malignant nature of the tumors). Implant-supported prostheses represented 58.9 % of cases of which 66.9 % were fixed and 33.1 % were implant-stabilized overdentures. Virtual surgical planning (VSP) was used in 20 % of studies and aimed to improve the position of the grafted fibula, quality, and aesthetics of DPR and to decrease ischemia and the operating time. One in two authors performed DPR 12 months after jaw reconstruction. If implant survival rate reached 93 % in non-irradiated fibula, it fell to 38 %, 55 %, and 77 % if implantation occurred in the 12, 17, and 24 months after radiotherapy, respectively. Various parameters should be better investigated in further studies including the typology of the prostheses (implant-supported vs removable), the use of VSP, and the optimal time for DPR taking into account the characteristics of the tumor, the size of bone defect, and the need for external irradiation therapy.
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Affiliation(s)
- Thanh-Thuy Nham
- Nantes Université, CHU Nantes, Service de chirurgie maxillo-faciale et stomatologie, F-44000 Nantes, France
| | - Carine Koudougou
- Nantes Université, CHU Nantes, Service de chirurgie maxillo-faciale et stomatologie, F-44000 Nantes, France
| | - Benoit Piot
- Nantes Université, CHU Nantes, Service de chirurgie maxillo-faciale et stomatologie, F-44000 Nantes, France
| | - Pierre Corre
- Nantes Université, CHU Nantes, Service de chirurgie maxillo-faciale et stomatologie, F-44000 Nantes, France; Nantes Université, Oniris, UnivAngers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Hélios Bertin
- Nantes Université, CHU Nantes, Service de chirurgie maxillo-faciale et stomatologie, F-44000 Nantes, France; Nantes Université, UnivAngers, CHU Nantes, INSERM, CNRS, CRCI2NA, F-44000 Nantes, France.
| | - Julie Longis
- Nantes Université, CHU Nantes, Service de chirurgie maxillo-faciale et stomatologie, F-44000 Nantes, France
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Zeman-Kuhnert K, Gaggl AJ, Bottini GB, Wittig J, Zimmermann G, Steiner C, Lauth W, Brandtner C. Long-Term Outcomes of Dental Rehabilitation and Quality of Life after Microvascular Alveolar Ridge Reconstruction in Patients with Head and Neck Cancer. J Clin Med 2024; 13:3110. [PMID: 38892821 PMCID: PMC11173157 DOI: 10.3390/jcm13113110] [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: 03/31/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Background/Objectives: Dental rehabilitation after extended tumour resection and jaw reconstruction is challenging. The present study aimed to report the prosthetic outcome and quality of life (QoL) in patients with head and neck cancer (HNC) after microvascular alveolar ridge reconstruction. Methods: The prosthetic outcomes of all consecutive patients with HNC who underwent microvascular alveolar ridge reconstruction at the University Hospital Salzburg between 2011 and 2018 were investigated. Oral health-related QoL (OHrQoL) and overall QoL were assessed using the validated Oral Health Impact Profile-49 (OHIP-49) and Short Form-36 questionnaires. Results: During the study period, 115 consecutive patients with head and neck cancer underwent microvascular jaw reconstruction. Among them, 23.3% and 27.4% received conventional tissue-borne prostheses and implant-supported prostheses, respectively, while 48.7% did not undergo dental rehabilitation. The prosthetic outcome was not associated with tumour stage (p = 0.32). Oral health-related quality of life (OHrQoL) was best in patients with implant-supported dental rehabilitation (OHIP-49 median score = 7) and worst in those with conventional removable dentures (OHIP-49 median score = 54). The corresponding OHIP-49 median score for patients who could not undergo dental rehabilitation was 30.5. All Short Form-36 subscale scores were equal to or higher than the malignancy norm scores. Conclusions: After microvascular jaw reconstruction, approximately one-third of the HNC patients received adequate implant-supported dental rehabilitation. However, the risk of dental rehabilitation failure was 50%. The different prosthetic outcomes affected OHrQoL, but not overall QoL.
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Affiliation(s)
- Katharina Zeman-Kuhnert
- Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (A.J.G.); (G.B.B.); (J.W.); (C.S.); (C.B.)
| | - Alexander J. Gaggl
- Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (A.J.G.); (G.B.B.); (J.W.); (C.S.); (C.B.)
| | - Gian B. Bottini
- Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (A.J.G.); (G.B.B.); (J.W.); (C.S.); (C.B.)
| | - Joern Wittig
- Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (A.J.G.); (G.B.B.); (J.W.); (C.S.); (C.B.)
| | - Georg Zimmermann
- Team Biostatistics and Big Medical Data, IDA Lab Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (G.Z.); (W.L.)
| | - Christoph Steiner
- Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (A.J.G.); (G.B.B.); (J.W.); (C.S.); (C.B.)
| | - Wanda Lauth
- Team Biostatistics and Big Medical Data, IDA Lab Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (G.Z.); (W.L.)
| | - Christian Brandtner
- Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (A.J.G.); (G.B.B.); (J.W.); (C.S.); (C.B.)
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Ritschl LM, Singer H, Clasen FC, Haller B, Fichter AM, Deppe H, Wolff KD, Weitz J. Oral rehabilitation and associated quality of life following mandibular reconstruction with free fibula flap: a cross-sectional study. Front Oncol 2024; 14:1371405. [PMID: 38562168 PMCID: PMC10982308 DOI: 10.3389/fonc.2024.1371405] [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: 01/16/2024] [Accepted: 03/01/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Mandibular reconstruction with the free fibula flap (FFF) has become a standardized procedure. The situation is different with oral rehabilitation, so the purpose of this study was to investigate the frequency of implant placement and prosthetic restoration. Additionally, the patients' situation, motivation, and treatment course were structurally assessed. Materials and methods All cases between January 2013 and December 2018 that underwent mandibular reconstruction in our department with a free fibula flap and gave written informed consent to participate were interviewed with two structured questionnaires about their restoration and quality of life. Additionally, medical records, general information, status of implants and therapy, and metric analyses of the inserted implants were performed. Results In total 59 patients were enrolled and analyzed in this monocentric study. Overall, oral rehabilitation was achieved in 23.7% at the time of investigation. In detail, implants were inserted in 37.3% of patients and showed an 83.3% survival of dental implants. Of these implanted patients, dental implants were successfully restored with a prosthetic restoration in 63.6. Within this subgroup, satisfaction with the postoperative aesthetic and functional result was 79.9% and with the oral rehabilitation process was 68.2%. Satisfaction with the implant-borne prosthesis was 87.5%, with non-oral-squamous-cell-carcinoma patients being statistically significantly more content with the handling (p=0.046) and care (p=0.031) of the prosthesis. Discussion Despite the well-reconstructed bony structures, there is a need to increase the effort of achieving oral rehabilitation, especially looking at the patient's persistent motivation for the procedure.
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Affiliation(s)
- Lucas M. Ritschl
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Hannes Singer
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Franz-Carl Clasen
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Bernhard Haller
- Institute of AI and Informatics in Medicine, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Andreas M. Fichter
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Herbert Deppe
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Klaus-Dietrich Wolff
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Jochen Weitz
- Department of Oral and Maxillofacial Surgery, TUM School of Medicine and Health, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
- Department of Oral and Maxillofacial Surgery, Josefinum, Augsburg and Private Practice Oral and Maxillofacial Surgery im Pferseepark, Augsburg, Germany
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Jiang L, Lin H, Shao Z, Liu B, Ge Z, Dai L, Cheng B, Wu T. Efficacy of personalized 3D-printed osteotomy guide in maximizing fibular utilization and minimizing graft length for reconstruction of large mandibular defect. Clin Oral Investig 2024; 28:125. [PMID: 38286974 DOI: 10.1007/s00784-024-05519-3] [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: 09/14/2023] [Accepted: 01/16/2024] [Indexed: 01/31/2024]
Abstract
OBJECTIVE The study addresses the long-standing challenge of insufficient length in vascularized fibular flaps when reconstructing large mandibular defects that require dual-barrel grafts. Employing personalized 3D-printed osteotomy guides, the study aims to optimize fibular utilization and minimize the required graft length. MATERIAL AND METHODS Two reconstruction methods for distal bone defects were compared: a fold-down (FD) group that employed a specialized osteotomy guide for folding down a triangular bone segment, and a traditional double-barrel (DB) group. Metrics for comparison included defect and graft lengths, as well as the graft-to-defect length ratio. Postoperative quality of life was assessed using the University of Washington Quality of Life questionnaire (UW-QoL). RESULT Both FD and DB groups achieved successful mandibular reconstruction. Despite larger defects in the FD group (117 ± 31.35 mm vs 84 ± 35.34 mm, p = 0.028), the used fibula length was not statistically longer in the FD group. The median ratio of graft-to-defect length was also lower in the FD group (1.327 vs 1.629, p = 0.024), suggesting that FD required only 82.47% of the graft length needed in the DB approach. Quality of life scores post-surgery were comparable between the groups. CONCLUSION Personalized 3D-printed osteotomy guides enhance fibula graft efficacy for reconstructing larger mandibular defects, necessitating shorter graft lengths while preserving postoperative quality of life. CLINICAL RELEVANCE This study confirms the utility of 3D printing technology as an effective and precise tool in orthopedic surgery, particularly for complex reconstructions like large mandibular defects. It suggests a viable alternative that could potentially revolutionize current practices in bone grafting.
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Affiliation(s)
- Lei Jiang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Hao Lin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Zhe Shao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
- Department of Oral and Maxillofacial-Head and Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Bing Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
- Department of Oral and Maxillofacial-Head and Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Zhixiang Ge
- Hubei Joye 3D High-Tech Co., Ltd, Wuhan, People's Republic of China
| | - Lin Dai
- Department of Stomatology, Wuhan No.1 Hospital, Wuhan, People's Republic of China
| | - Bo Cheng
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.
| | - Tianfu Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.
- Department of Oral and Maxillofacial-Head and Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.
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Lombardo G, D'Agostino A, Nocini PF, Signoriello A, Zangani A, Pardo A, Lonardi F, Trevisiol L. Clinical outcomes and periodontal conditions of dental implants placed in free fibula flaps (FFF): a retrospective study with a mean follow-up of 6 years. Clin Oral Investig 2023; 27:7737-7751. [PMID: 37917356 PMCID: PMC10713700 DOI: 10.1007/s00784-023-05364-w] [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: 08/02/2023] [Accepted: 10/24/2023] [Indexed: 11/04/2023]
Abstract
OBJECTIVES Up-to-date literature regarding long-term success of implant rehabilitations after microvascular reconstructions with free fibula flap (FFF) is still very scarce. This study aimed to evaluate clinical outcomes, especially related to oral hygiene conditions, of patients rehabilitated with this technique. MATERIALS AND METHODS A total of 25 patients who underwent maxillofacial reconstructive surgery with FFF were retrospectively evaluated for soft tissues conditions, oral hygiene habits, and implant survival and success, assessed with a mean follow-up of 6 (range 2-15) years after loading. RESULTS Fourteen patients received full-arch fixed prostheses and 11 removable bar-supported overdentures. At the follow-up evaluation, 52% of prostheses did not allow proper accessibility for oral hygiene. Overall prosthetic survival was 100%, and implant survival and success were respectively 93.6% and 72%. Prevalence of peri-implantitis was 29% at implant level and that at patient level 96%. CONCLUSIONS Six-year clinical outcomes of this study reveal that poor oral hygiene practices and compliance by patients who underwent maxillofacial reconstruction with FFF are significantly associated with peri-implant disease. CLINICAL RELEVANCE Findings of the present study underline the need by clinicians for a careful assessment, in reference to a specific implant therapy, of patient's prosthetic accessibility for oral hygiene procedures.
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Affiliation(s)
- Giorgio Lombardo
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Antonio D'Agostino
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Pier Francesco Nocini
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Annarita Signoriello
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy.
| | - Alessandro Zangani
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Alessia Pardo
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Fabio Lonardi
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Lorenzo Trevisiol
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
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Faverani LP, Rios BR, Santos AMDS, Mendes BC, Santiago-Júnior JF, Sukotjo C, Callahan N, Miloro M. Predictability of single versus double-barrel vascularized fibula flaps and dental implants in mandibular reconstructions: A systematic review and meta-analysis of prospective studies. J Prosthet Dent 2023:S0022-3913(23)00686-8. [PMID: 37978003 DOI: 10.1016/j.prosdent.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 11/19/2023]
Abstract
STATEMENT OF PROBLEM Patients with vascularized bone flaps from the fibula have reduced bone height, in which case a higher prosthetic abutment is needed for their implant-supported prosthesis. Although the double-flap technique seems promising, systematic reviews and meta-analyses of prospective studies are lacking. PURPOSE The purpose of this systematic review and meta-analysis was to evaluate the grafted areas of single barrel fibular flaps (SBFF) and double-barrel fibular flaps (DBFF) by considering failure rates, dental implant complications, and bone union at the osteotomy sites. MATERIAL AND METHODS A systematic review and meta-analysis was performed in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement, population, intervention, control, and outcomes (PICO) question, and the National Health and Medical Research Council scales. The event rate of complications and failures was calculated with a confidence interval (CI) of 95%. RESULTS A total of 13 prospective studies with 441 participants and 330 graft sites were identified. A total of 235 participants had SBFF with 445 implants, and 95 had DBFF with 164 implants. The overall combined graft failure rates were 4.2% for SBFF and 3.2% for DBFF. The complication rate was 10% for SBFF and 1.9% for DBFF. Implant failure was at 4.7% in the SBFF group and 3.4% in the DBFF group. CONCLUSIONS Complication rates and implant failures were similar for SBFF and DBFF. Therefore, for long-term oral rehabilitation, both SBFF and DBFF are suitable procedures for mandibular reconstruction.
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Affiliation(s)
- Leonardo P Faverani
- Associate Professor, Department of Diagnosis and Surgery, Division of Oral and Maxillofacial Surgery and Implantology, São Paulo State University (UNESP), Araçatuba, SP, Brazil.
| | - Barbara R Rios
- PhD student, Department of Diagnosis and Surgery, Division of Oral and Maxillofacial Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - Anderson Maikon de Souza Santos
- PhD student, Department of Diagnosis and Surgery, Division of Oral and Maxillofacial Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - Bruno C Mendes
- PhD student, Department of Diagnosis and Surgery, Division of Oral and Maxillofacial Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - Joel F Santiago-Júnior
- Assistant Professor, Department of Health Sciences, Sacred Heart University, Bauru, SP, Brazil
| | - Cortino Sukotjo
- Associate Professor, Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Nicholas Callahan
- Assistant Professor, Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Michael Miloro
- Professor and Head of Department, Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
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10
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Oldén A, Wamalwa AO, Jonsson EL, Thor A, Lorenzo AR. Factors Affecting Complete Oral Rehabilitation in Patients With Vascularized Free Fibula Flap Mandibular Reconstruction: A 10-Year Retrospective Study. J Craniofac Surg 2023; 34:1635-1639. [PMID: 37485965 DOI: 10.1097/scs.0000000000009543] [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: 09/15/2022] [Accepted: 05/20/2023] [Indexed: 07/25/2023] Open
Abstract
The fibula is the preferred bone flap for mandibular reconstructions due to its many advantages, including the possibility to insert dental implants. All patients who received a mandibular reconstruction with a vascularized free fibula flap at the Uppsala University Hospital between 2009 and 2019 were retrospectively examined regarding the proportion of implant insertion and factors that affected implant outcome. Forty-one patients had 42 fibula flap reconstructions. Eleven patients (27%) received dental implants and 8 (20%) completed dental rehabilitation. Patient death and cancer recurrence were the main reasons for not receiving implants. The survival rates of implants placed in irradiated and nonirradiated fibulas were 15% and 76%, respectively. Less than 20% of reconstructed patients received an implant-supported prosthesis. Implants placed in an irradiated fibula should be considered at high risk for implant loss.
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Affiliation(s)
- Alexandra Oldén
- Department of Surgical Sciences, Odontology & Maxillofacial Surgery, Uppsala University
| | - Alex O Wamalwa
- Department of Plastic and Maxillofacial Surgery, Uppsala University Hospital
| | - Eva Lindell Jonsson
- Department of Plastic and Maxillofacial Surgery, Uppsala University Hospital
- Department of Surgical Sciences, Plastic Surgery, Uppsala University, Uppsala, Sweden
| | - Andreas Thor
- Department of Surgical Sciences, Odontology & Maxillofacial Surgery, Uppsala University
- Department of Plastic and Maxillofacial Surgery, Uppsala University Hospital
| | - Andrés Rodriguez Lorenzo
- Department of Plastic and Maxillofacial Surgery, Uppsala University Hospital
- Department of Surgical Sciences, Plastic Surgery, Uppsala University, Uppsala, Sweden
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11
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Grecchi F, D'Ambrogio RG, Stefanelli LV, Grivetto F, Goker F, Del Fabbro M, Schreiber A, Piazza C, Salgarello S, Dosio C, Grecchi E. Guided Zygomatic Implantology for Oral Cancer Rehabilitation: A Case Report. J Clin Med 2023; 12:jcm12113653. [PMID: 37297847 DOI: 10.3390/jcm12113653] [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: 04/26/2023] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Oral rehabilitation after maxillary oncological resection is challenging. This case report presents the rehabilitation of a 65-year-old Caucasian male adenoid cystic carcinoma patient using a myo-cutaneous thigh flap, zygomatic implant placement, and an immediate fixed provisional prosthesis made with computer-aided technologies. The patient presented complaints of asymptomatic enlarged swelling of 5-mm on the right hard hemi-palate. There was an oro-antral communication deriving from a previous local excision. Preoperative radiographs showed the involvement of the right maxilla, maxillary sinus, and nose with a suspect involvement of the maxillary division of the trigeminal nerve. Treatment was planned through a fully digital workflow. A partial maxillectomy was performed endoscopically, and maxilla was reconstructed using an anterolateral thigh free flap. Two zygomatic implants were inserted simultaneously. A provisional fix full-arch prosthesis was manufactured preoperatively through a fully digital workflow and was placed in the operating room. Following post-operative radiotherapy, the patient received a final hybrid prosthesis. During the follow-up period of two years, the patient reported good function, aesthetics, and significant enhancement in quality of life. According to the results of this case, the protocol represented can be a promising alternative for oral cancer patients with large defects, and can lead to an improved quality of life.
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Affiliation(s)
| | - Roberto Giuseppe D'Ambrogio
- Department of Surgical Specialties, Dental Clinic, School of Dentistry, University of Brescia, Piazza Spedali Civili 1, 25123 Brescia, Italy
| | | | - Fabrizio Grivetto
- Azienda Ospedaliero Universitaria Maggiore Della Carità Largo Bellini, 28100 Novara, Italy
| | - Funda Goker
- Department of Biomedical, Surgical and Dental Sciences, University of Milano, 20122 Milan, Italy
- Dental and Maxillo-Facial Surgery Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Massimo Del Fabbro
- Department of Biomedical, Surgical and Dental Sciences, University of Milano, 20122 Milan, Italy
- Dental and Maxillo-Facial Surgery Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Alberto Schreiber
- Department of Surgical Specialties, Ear, Nose and Throat Clinic, School of Dentistry, University of Brescia, Piazza Spedali Civili 1, 25123 Brescia, Italy
| | - Cesare Piazza
- Department of Surgical Specialties, Ear, Nose and Throat Clinic, School of Dentistry, University of Brescia, Piazza Spedali Civili 1, 25123 Brescia, Italy
| | - Stefano Salgarello
- Department of Surgical Specialties, Dental Clinic, School of Dentistry, University of Brescia, Piazza Spedali Civili 1, 25123 Brescia, Italy
| | - Camilla Dosio
- Azienda Ospedaliero Universitaria Maggiore Della Carità Largo Bellini, 28100 Novara, Italy
| | - Emma Grecchi
- Private Practice, Via Boccaccio 34, 20123 Milan, Italy
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12
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Bevini M, Vitali F, Ceccariglia F, Badiali G, Tarsitano A. Accuracy Evaluation of an Alternative Approach for a CAD-AM Mandibular Reconstruction with a Fibular Free Flap via a Novel Hybrid Roto-Translational and Surface Comparison Analysis. J Clin Med 2023; 12:jcm12051938. [PMID: 36902725 PMCID: PMC10003983 DOI: 10.3390/jcm12051938] [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: 01/16/2023] [Revised: 02/20/2023] [Accepted: 02/27/2023] [Indexed: 03/05/2023] Open
Abstract
Although the fibula free flap represents the gold standard for mandibular reconstructions, when implanted as a single barrel, this flap does not have the cross-sectional requisites to restore the native mandibular height, which is in turn required for the implant-supported dental rehabilitation of the patient. Our team has developed a design workflow that already considers the predicted dental rehabilitation, positioning the fibular free flap in the correct craniocaudal position to restore the native alveolar crest. The remaining height gap along the inferior mandibular margin is then filled by a patient-specific implant. The aim of this study is to evaluate the accuracy in transferring the planned mandibular anatomy resulting from said workflow on 10 patients by means of a new rigid body analysis method, derived from the evaluation of orthognathic surgery procedures. The analysis method has proved to be reliable and reproducible, and the results obtained show that the procedure already has satisfactory accuracy (4.6° mean total angular discrepancy, 2.7 mm total translational discrepancy, 1.04 mm mean neo-alveolar crest surface deviation), while also pointing out possible improvements to the virtual planning workflow.
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Affiliation(s)
- Mirko Bevini
- IRCCS Azienda Ospedaliero Universitaria di Bologna, Oral and Maxillofacial Surgery Unit, Via Albertoni 15, 40138 Bologna, Italy
| | - Francesco Vitali
- IRCCS Azienda Ospedaliero Universitaria di Bologna, Oral and Maxillofacial Surgery Unit, Via Albertoni 15, 40138 Bologna, Italy
- Correspondence:
| | - Francesco Ceccariglia
- IRCCS Azienda Ospedaliero Universitaria di Bologna, Oral and Maxillofacial Surgery Unit, Via Albertoni 15, 40138 Bologna, Italy
| | - Giovanni Badiali
- IRCCS Azienda Ospedaliero Universitaria di Bologna, Oral and Maxillofacial Surgery Unit, Via Albertoni 15, 40138 Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40138 Bologna, Italy
| | - Achille Tarsitano
- IRCCS Azienda Ospedaliero Universitaria di Bologna, Oral and Maxillofacial Surgery Unit, Via Albertoni 15, 40138 Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40138 Bologna, Italy
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13
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Manju V, Krishnapriya VN, Babu AS, Krishnadas A, Subash P, Iyer S. Prosthetic Rehabilitation Options in Post-Ablative Maxillomandibular Microvascular Reconstructions. J Maxillofac Oral Surg 2023; 22:10-19. [PMID: 37041947 PMCID: PMC10082883 DOI: 10.1007/s12663-023-01883-x] [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: 01/29/2023] [Accepted: 02/23/2023] [Indexed: 03/28/2023] Open
Abstract
Objective Surgery remains the mainstay for managing most neoplasms arising in the head and neck area. Removable or fixed prostheses are commonly used for prosthetic rehabilitation of head and neck defects following surgical resection. Some major challenges in prosthetic rehabilitation after maxillomandibular microvascular reconstruction include excessive prosthetic space, soft tissue bulk, and occlusal disharmony in the remaining dentition. This review focuses on the challenges we have experienced in the real clinical scenario while rehabilitating reconstructed maxillomandibular defects and the effective prosthetic treatment options that could be considered in each situation. Discussion Digital revolution has changed all arenas of life, and it has created a significant impact on cancer treatment planning and the delivery of quality treatment to the needy. Creating adequate retention while ensuring stability and support for the prosthesis can be challenging with temporary acrylic and cast partial removable dentures. Endosseous dental implants are considered a stable, reliable, and esthetic option for reconstruction with advantages such as increased chewing efficiency, preservation of the remaining bone height and width, and improved quality of life. The FP3 to RP5 (Misch's classification) are some commonly followed prosthetic rehabilitation options after microvascular reconstruction. The prosthetic design should permit the usage of interdental aids that ensure the longevity of prostheses. Conclusion Occlusion-driven/prosthetic-driven implant-assisted prostheses are considered a reliable option that ensures stable and functional oral rehabilitation among patients with free fibula flap reconstruction. Multidisciplinary teamwork is mandatory for an optimal outcome that improves patients' quality of life.
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Affiliation(s)
- V. Manju
- Department of Prosthodontics and Implantology, Amrita School of Dentistry, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala India
| | - V N Krishnapriya
- Department of Prosthodontics and Implantology, Amrita School of Dentistry, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala India
| | - Anna Serene Babu
- Department of Prosthodontics and Implantology, Amrita School of Dentistry, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala India
| | - Arjun Krishnadas
- Department of Craniomaxillofacial Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala India
| | - Pramod Subash
- Department of Craniomaxillofacial Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala India
| | - Subramania Iyer
- Centre for Plastic and Reconstructive Surgery, Centre for Head and Neck Surgery and Oncology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala India
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14
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Laverty DP, Addison O, Newsum D, Bateman G. Prosthodontic complications during implant-based oral rehabilitation of patients with head and neck cancer. J Prosthet Dent 2023; 129:366-372. [PMID: 34311947 DOI: 10.1016/j.prosdent.2021.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
STATEMENT OF PROBLEM Implant-retained prosthodontic rehabilitation of patients with head and neck cancer is complex. However, the extent of prosthodontic complications has been sparsely reported within the literature. PURPOSE The purpose of this retrospective study was to describe the range of complications and issues that affected the oral rehabilitation treatment of patients with head and neck cancer who had completed implant-retained prosthodontic rehabilitation in a tertiary treatment center. MATERIAL AND METHODS A retrospective analysis of complications and their consequences in patients treated in a regional unit from 2012 to 2017 was performed. Descriptive analysis was carried out on the type and frequency of complications and their consequences for the patients' treatment. Complications were grouped into the following complication types: local and systemic, implant, peri-implant soft tissue, and clinical prosthodontic complications. Implant success and implant survival were also reported. RESULTS The sample was composed of 163 patients with head and neck cancer who had completed implant-retained prosthodontic rehabilitation. Local and systemic complications affected 8.6% of patients, and peri-implant soft-tissue complications affected 9.8% of patients. Clinical prosthodontic complications leading to repeated clinical or laboratory stages occurred on 48 occasions in 45 patients (27.6% of patients). A total of 763 implants were placed. Implant survival was 95.8% and implant success 94.5%, with a mean follow-up of 42.1 months. CONCLUSIONS This retrospective evaluation indicated that complications arising during the process of implant-retained prosthetic rehabilitation in this patient group were variable and common. Such complications can delay the process of treatment and lead to repeating or restarting clinical and laboratory stages of treatment.
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Affiliation(s)
- Dominic P Laverty
- Consultant in Restorative Dentistry, Restorative Department, University of Birmingham School of Dentistry, Birmingham Dental Hospital, Birmingham, UK.
| | - Owen Addison
- Professor of Oral Rehabilitation, Centre for Clinical, Oral and Translational Sciences, King's College London, London, UK
| | - David Newsum
- Consultant in Restorative Dentistry, Restorative Department, University of Birmingham School of Dentistry, Birmingham Dental Hospital, Birmingham, UK
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15
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Towards Optimum Mandibular Reconstruction for Dental Occlusal Rehabilitation: From Preoperative Virtual Surgery to Autogenous Particulate Cancellous Bone and Marrow Graft with Custom-Made Titanium Mesh-A Retrospective Study. J Clin Med 2023; 12:jcm12031122. [PMID: 36769770 PMCID: PMC9918119 DOI: 10.3390/jcm12031122] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
The purpose of this retrospective study was to evaluate computer-assisted virtual surgery and the outcomes of mandibular reconstruction using an autogenous particulate cancellous bone and marrow (PCBM) graft combined with a custom-made titanium mesh (TiMesh) using a three-dimensional (3D) printing model. Eighteen consecutive patients were included, and preoperative virtual simulation surgery was performed using digital data. Segmental bone defects showed deviation of the mandible due to displacement of the condyle and segments, unnatural length of the mandibular body, or poorer intermaxillary relationship compared to the marginal bone defect caused by previous operations. These mandibular disharmonies could be simulated, and virtual surgery was performed on a computer with adjustment of displaced mandibular segments, length of the mandibular body, and dental arch with digital bone augmentation. TiMesh was manually pre-bent using a 3D printing model, and PCBM from the iliac crest was grafted with TiMesh. The short-term clinical results were good; reconstruction of the alveolar crest was prosthetically desirable; and minor complications were observed. In conclusion, virtual reconstruction is crucial for treating complex deviated mandibles. Accurate condylar and dental arch positions with an optimum mandibular length are important for prosthetically satisfactory mandibular reconstruction.
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16
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Zhang X, Xiao T, Yang L, Ning C, Guan S, Li X. Application of a vascularized bone free flap and survival rate of dental implants after transplantation: A systematic review and meta-analysis. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101401. [PMID: 36717020 DOI: 10.1016/j.jormas.2023.101401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/08/2023] [Accepted: 01/26/2023] [Indexed: 01/30/2023]
Abstract
PURPOSE As maxillofacial surgical techniques have advanced, vascularized bone free flap transplantation has become the standard treatment for repairing maxillofacial defects. In this meta-analysis, we summarize the survival rates of implants after VBFF surgery for maxillary and mandibular reconstructions and investigate the factors affecting patient outcomes. METHODS The PubMed, Embase, and Wanfang databases were searched up to May 31, 2022. The results of the treatment effect are presented as the risk ratio or odds ratio, using 95% confidence intervals. Statistical significance was calculated at α = 0.05 (two-tailed z tests). RESULTS 35 studies were included in our analysis. The results revealed a 3-year and 5-year implant survival rate of 95.2% and 85.4% in VBFFs, respectively. The location of jaw defects (maxilla or mandible) or timing of implantation was not found to have a statistically significant influence on the survival rate. However, statistically significant differences were observed in the failure of implants placed in irradiated bone tissue. CONCLUSIONS Statistically significant differences were not found in the implant survival rate between simultaneous and delayed implantation, or between maxillary and mandibular defects. However, dental implants placed in irradiated flaps tended to have a lower survival rate than those surgically placed in non-irradiated flaps.
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Affiliation(s)
- Xingkui Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China
| | - Tiepeng Xiao
- Department of Oral Orthodontics, The Second Affiliated Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Lei Yang
- Department of Epidemiology and Statistics, School of Public Health, Hebei Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang 050017, China
| | - Chunliu Ning
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China
| | - Shuai Guan
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China
| | - Xiangjun Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China.
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17
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Clinical performance of different types of dental prosthesis in patients with head and neck tumors-a retrospective cohort study. Clin Oral Investig 2022; 26:7121-7133. [PMID: 35976496 DOI: 10.1007/s00784-022-04673-w] [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: 12/15/2021] [Accepted: 08/09/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To investigate how different types of dental prosthesis perform in patients with head and neck tumors. MATERIALS AND METHODS In this retrospective clinical cohort study, the impact of different patient-related factors was analyzed as influencing factors on the survival probability of dental prosthesis using Kaplan-Meier estimate. For analysis, the dental prosthesis was divided into groups: group 1 (fixed dental prosthesis), group 2 (removable dental prosthesis), group 3 (implant-supported dental prosthesis), and group 4 (prostheses anchored using wrought wire clasps and obturators). The incidental aftercare measures were also evaluated. RESULTS Two hundred seventy-nine restorations were observed (mean observation: 2.7 ± 3.0 years, max.14.8 years) out of which 49 (17.6%) had to be replaced during the observation. After 5 years, 100% of group 1 restorations, 79.9% of group 2 restorations, 91.4% of group 3 restorations, and 30% of group 4 restorations were still functional. Four hundred eighty-eight dental implants were observed, of which 77 (15.8%) failed. CONCLUSIONS Groups 1, 2, and 3 restorations showed good survival times after 5 years in function, whereas group 4 presented the worst survival times. Group 2 restorations showed the highest amount of necessary aftercare measures. CLINICAL RELEVANCE The current investigation shows that groups 1, 2, and 3 restorations should be preferred in the prosthetic treatment planning of patients with head and neck tumors. A treatment with group 4 restorations should only be considered if no other prosthetic treatment is possible or as temporary treatment.
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18
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Ochandiano S, García-Mato D, Gonzalez-Alvarez A, Moreta-Martinez R, Tousidonis M, Navarro-Cuellar C, Navarro-Cuellar I, Salmerón JI, Pascau J. Computer-Assisted Dental Implant Placement Following Free Flap Reconstruction: Virtual Planning, CAD/CAM Templates, Dynamic Navigation and Augmented Reality. Front Oncol 2022; 11:754943. [PMID: 35155183 PMCID: PMC8833256 DOI: 10.3389/fonc.2021.754943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 12/24/2021] [Indexed: 12/16/2022] Open
Abstract
Image-guided surgery, prosthetic-based virtual planning, 3D printing, and CAD/CAM technology are changing head and neck ablative and reconstructive surgical oncology. Due to quality-of-life improvement, dental implant rehabilitation could be considered in every patient treated with curative intent. Accurate implant placement is mandatory for prosthesis long-term stability and success in oncologic patients. We present a prospective study, with a novel workflow, comprising 11 patients reconstructed with free flaps and 56 osseointegrated implants placed in bone flaps or remnant jaws (iliac crest, fibula, radial forearm, anterolateral thigh). Starting from CT data and jaw plaster model scanning, virtual dental prosthesis was designed. Then prosthetically driven dental implacement was also virtually planned and transferred to the patient by means of intraoperative infrared optical navigation (first four patients), and a combination of conventional static teeth supported 3D-printed acrylic guide stent, intraoperative dynamic navigation, and augmented reality for final intraoperative verification (last 7 patients). Coronal, apical, and angular deviation between virtual surgical planning and final guided intraoperative position was measured on each implant. There is a clear learning curve for surgeons when applying guided methods. Initial only-navigated cases achieved low accuracy but were comparable to non-guided freehand positioning due to jig registration instability. Subsequent dynamic navigation cases combining highly stable acrylic static guides as reference and registration markers result in the highest accuracy with a 1–1.5-mm deviation at the insertion point. Smartphone-based augmented reality visualization is a valuable tool for intraoperative visualization and final verification, although it is still a difficult technique for guiding surgery. A fixed screw-retained ideal dental prosthesis was achieved in every case as virtually planned. Implant placement, the final step in free flap oncological reconstruction, could be accurately planned and placed with image-guided surgery, 3D printing, and CAD/CAM technology. The learning curve could be overcome with preclinical laboratory training, but virtually designed and 3D-printed tracer registration stability is crucial for accurate and predictable results. Applying these concepts to our difficult oncologic patient subgroup with deep anatomic alterations ended in comparable results as those reported in non-oncologic patients.
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Affiliation(s)
- Santiago Ochandiano
- Servicio de Cirugía Oral y Maxilofacial, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- *Correspondence: Santiago Ochandiano,
| | - David García-Mato
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
| | - Alba Gonzalez-Alvarez
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
| | - Rafael Moreta-Martinez
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
| | - Manuel Tousidonis
- Servicio de Cirugía Oral y Maxilofacial, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Carlos Navarro-Cuellar
- Servicio de Cirugía Oral y Maxilofacial, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Ignacio Navarro-Cuellar
- Servicio de Cirugía Oral y Maxilofacial, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - José Ignacio Salmerón
- Servicio de Cirugía Oral y Maxilofacial, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Javier Pascau
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
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19
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Cui H, Gao L, Han J, Liu J. Biomechanical analysis of mandibular defect reconstruction based on a new base-fixation system. Comput Methods Biomech Biomed Engin 2022; 25:1618-1628. [PMID: 35060776 DOI: 10.1080/10255842.2022.2029426] [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: 11/03/2022]
Abstract
Buccal titanium plate fixation is a common method for repairing mandibular defects. However, the method presents certain problems: the requirement of a large volume of titanium plate, a large number of fixation screws, a lengthy duration of the surgical operation, and exposure of the fixation plate which easily causes wound infection. In this study, a new base-fixation system was designed. Mandibular reconstruction was performed using the three-dimensional reconstruction package Mimics. In order to compare the newly designed base-fixation system and the common buccal-fixation system, the stress distributions and the displacement distributions of the whole model under two loading conditions were studied, based on the finite element analysis package ANSYS. The safety of the base-fixation titanium plate was evaluated. The results showed that although the maximum stress of the base-fixation titanium plate was higher than that of the buccal-fixation titanium plate, it was still less than the yield strength of titanium. Therefore, under the condition of applying 300 N of vertical occlusal loading, the base-fixation titanium plate displayed superior fixation ability without permanent deformation (and concomitant fixation failure). The results of the fatigue simulation analysis showed that the safety factor of the base-fixation titanium plate in the working state was 3.8 (>1.0), indicating that its fatigue performance met the application requirements. Compared with traditional buccal fixation, the novel base-fixation system has obvious advantages, suggesting its suitability as a new treatment method for clinical mandibular defect reconstruction.
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Affiliation(s)
- Haipo Cui
- Shanghai Institute for Minimally Invasive Therapy, University of Shanghai for Science and Technology, Shanghai, China
| | - Liping Gao
- Shanghai Institute for Minimally Invasive Therapy, University of Shanghai for Science and Technology, Shanghai, China
| | - Jing Han
- Department of Oromaxillofacial Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.,College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, Shanghai, PR China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, PR China
| | - Jiannan Liu
- Department of Oromaxillofacial Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.,College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, Shanghai, PR China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, PR China
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20
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Ismail MB, Darwich K. Reconstruction of large mandibular bone defects extended to the condyle using patient-specific implants based on CAD-CAM technology and 3D printing. ADVANCES IN ORAL AND MAXILLOFACIAL SURGERY 2022. [DOI: 10.1016/j.adoms.2021.100229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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21
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Implant-based dental rehabilitation in head and neck cancer patients after maxillofacial reconstruction with a free vascularized fibula flap: the effect on health-related quality of life. Support Care Cancer 2022; 30:5411-5420. [PMID: 35298715 PMCID: PMC9046363 DOI: 10.1007/s00520-022-06944-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/26/2022] [Indexed: 02/08/2023]
Abstract
PURPOSE To evaluate the effect of implant-based dental rehabilitation (IDR) on health-related quality of life (HRQoL) in head and neck cancer (HNC) patients after reconstruction with a free vascularized fibula flap (FFF). METHODS Eligible patients were identified by retrospectively reviewing the medical records of patients treated in Amsterdam UMC-VUmc. HRQoL data were used from OncoQuest, a hospital-based system to collect patient-reported outcome measures in routine care. Data were used of the EORTC QLQ-C30 and QLQ-H&N 35 before FFF reconstruction (T0) and after completing IDR (T1). Data were statistically analysed with the chi-square test, independent samples t test and linear mixed models. RESULTS Out of 96 patients with maxillofacial FFF reconstruction between January 2006 and October 2017, 57 patients (19 with and 38 without IDR) had HRQoL data at T0 and T1. In the cross-sectional analysis, patients with IDR scored significantly better at T0 and T1 on several EORTC domains compared to the patients without IDR. Weight loss was significantly different in the within-subject analysis between T0 and T1 for patients with IDR (p = 0.011). However, there were no significant differences in the mean changes of all the EORTC QLQ-C30 and EORTC QLQ-H&N35 scores between the defined timepoints for patients with IDR compared to those without. CONCLUSIONS In this study, no differences were found in the course of HRQoL in HNC patients who had undergone IDR after maxillofacial FFF reconstruction, compared to those who had not. Patients should be preoperatively informed to have realistic expectations regarding the outcome of IDR.
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Dimmock M, Alshehri S, Delanoë F, Pradines M, Georg S, Lauwers F, Lopez R. Oral rehabilitation after squamous cell carcinoma mandibular resection. JOURNAL OF ORAL MEDICINE AND ORAL SURGERY 2021. [DOI: 10.1051/mbcb/2021016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Introduction: Squamous cell carcinoma of the oral cavity is the most common cause of mandibular defect. The functional and aesthetic impacts of this surgery must be considered. The number of mandibular resections depends on the TNM classification of the tumor. Mandibular reconstruction by a fibula free flap has become the gold standard. Unfortunately, not all mandibular resections are rehabilitated. The purpose of this study is to evaluate oral rehabilitation after mandibular resection in patients with squamous cell carcinoma. Materials and methods: A retrospective study was conducted to evaluate oral rehabilitations according to the type of surgical resection and reconstruction. The secondary evaluation criteria were type of rehabilitation, implant success rate, post-radiotherapy delay, rehabilitation success rate, and causes of non-rehabilitation. Results: The study included 157 patients with mandibular resection. Of the patients, 26.7 percent received oral rehabilitation. All rehabilitation with implants was functional. The main causes of non-rehabilitation were death or recurrences related to the progression of the disease, postoperative anatomical difficulties, and cost of oral rehabilitation. Conclusion: Oral rehabilitation after mandibular resection surgery is insufficient. A rehabilitation unit including a maxillofacial surgeon, oral surgeon, and dentist is essential. Implementation of the unit should be considered as soon as possible. The cost of rehabilitation should not be a limiting factor.
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Survival of dental implants and occurrence of osteoradionecrosis in irradiated head and neck cancer patients: a systematic review and meta-analysis. Clin Oral Investig 2021; 25:5579-5593. [PMID: 34401944 PMCID: PMC8443505 DOI: 10.1007/s00784-021-04065-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 06/29/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES This systematic review assesses dental implant survival, calculates the incidence rate of osteoradionecrosis, and evaluates risk factors in irradiated head and neck cancer patients. MATERIALS AND METHODS Various databases (e.g., Medline/Embase using Ovid) and gray literature platforms were searched using a combination of keywords and subject headings. When appropriate, meta-analysis was carried out using a random effects model. Otherwise, pooled analysis was applied. RESULTS A total of 425 of the 660 included patients received radiotherapy. In total, 2602 dental implants were placed, and 1637 were placed in irradiated patients. Implant survival after an average follow-up of 37.7 months was 97% (5% confidence interval, CI 95.2%, 95% CI 98.3%) in nonirradiated patients and 91.9% (5% CI 87.7%, 95% CI: 95.3%) after an average follow-up of 39.8 months in irradiated patients. Osteoradionecrosis occurred in 11 cases, leading to an incidence of 3% (5% CI 1.6%, 95% CI 4.9%). The main factors impacting implant survival were radiation and grafting status, while factors influencing osteoradionecrosis could not be determined using meta-analysis. CONCLUSION Our data show that implant survival in irradiated patients is lower than in nonirradiated patients, and osteoradionecrosis is-while rare-a serious complication that any OMF surgeon should be prepared for. The key to success could be a standardized patient selection and therapy to improve the standard of care, reduce risks and shorten treatment time. CLINICAL RELEVANCE Our analysis provides further evidence that implant placement is a feasible treatment option in irradiated head and neck cancer patients with diminished oral function and good long-term cancer prognosis.
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Ong A, Williams F, Tokarz E, Shokri T, Hammer D, Ducic Y. Jaw in a Day: Immediate Dental Rehabilitation during Fibula Reconstruction of the Mandible. Facial Plast Surg 2021; 37:722-727. [PMID: 34380165 DOI: 10.1055/s-0041-1732478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Reconstructing mandibular defects presents challenges to dental rehabilitation related to altered bone and soft tissue anatomy. Dental implants are the most reliable method to restore the lost dentition. Immediate dental implants have been placed for many years but with unacceptably low rates of dental/prosthetic success. Current virtual technology allows placement of both fibulas and guided implants in restoratively driven positions that also allow immediate dental rehabilitation. Inexpensive three-dimensional printing platforms can create provisional dental prostheses placed at the time of surgery. This article reviews our digital and surgical workflow to create an immediate dental prosthesis to predictably restore the dentition during major jaw reconstruction with fibula free flaps.
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Affiliation(s)
- Adrian Ong
- Otolaryngology and Facial Plastic Surgery Associates, Facial Plastic Surgery, Fort Worth, Texas
| | - Fayette Williams
- Department of Oral and Maxillofacial Surgery, John Peter Smith Health Network, Fort Worth, Texas
| | - Ellen Tokarz
- Department of Otolaryngology Head and Neck Surgery, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, New York
| | - Tom Shokri
- Department of Otolaryngology, Baylor All Saints Medical Center at Fort Worth, Fort Worth, Texas
| | - Daniel Hammer
- Department of Oral and Maxillofacial Surgery, Naval Medical Center San Diego, San Diego, California
| | - Yadranko Ducic
- Otolaryngology and Facial Plastic Surgery Associates, Facial Plastic Surgery, Fort Worth, Texas
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Lilly GL, Petrisor D, Wax MK. Mandibular rehabilitation: From the Andy Gump deformity to jaw-in-a-day. Laryngoscope Investig Otolaryngol 2021; 6:708-720. [PMID: 34401495 PMCID: PMC8356852 DOI: 10.1002/lio2.595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/25/2021] [Accepted: 04/17/2021] [Indexed: 12/31/2022] Open
Abstract
The mandible is a critical structure of the lower facial skeleton which plays an important role in several vital functions. Segmental resection of the mandible is at times required in patients with advanced oral cavity malignancies, primary mandibular tumors, and radiation or medication induced osteonecrosis. Mandibulectomy can significantly decrease quality of life, and thus mandibular reconstruction is an important aspect of the operative plan. Mandibular reconstruction is challenging due to the complex three-dimensional anatomy of the mandible, and the precision required to restore dental occlusion in dentate patients. Significant advances have been made over the past decade in the ability to reconstruct and rehabilitate patients after a segmental mandibulectomy. This review will highlight these advances and discuss the timing of dental implantation.
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Affiliation(s)
- Gabriela L. Lilly
- Department of Otolaryngology – Head and Neck SurgeryOregon Health and Science UniversityPortlandOregonUSA
| | - Daniel Petrisor
- Department of Oral and Maxillofacial SurgeryOregon Health and Science UniversityPortlandOregonUSA
| | - Mark K. Wax
- Department of Otolaryngology – Head and Neck SurgeryOregon Health and Science UniversityPortlandOregonUSA
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Abstract
BACKGROUND The possibility of placing dental fixtures in the reconstructed regions allows us to overcome the problems related to dental rehabilitation with removable prosthesis. The aim of this study was to assess the clinic-radiological outcome in a series of patients who underwent fibula flap jaws reconstruction and rehabilitation with implant-supported prosthesis with a minimum follow-up of 24 months. MATERIAL AND METHODS The study included 10 patients who underwent reconstruction with fibula free flap between 2010 and 2018. Albrektsson criteria were used to define the implant survival. The follow-up evaluation was performed according to a standardized protocol including clinical examination, radiological evaluation (panoramic radiograph) and patient interview. RESULTS A total of 45 implants were positioned.The time between mandibular reconstruction and implant placement ranged from 13 months to 39 months.The prosthesis used was fixed in 6 cases and supported overdenture in 4 cases.No implant failure was observed.Regarding implant survival no infections were observed in these series. Nine patients out of 10 had no pain and signs of mobility. Seven patients out of 10 had absence of peri-implant radiolucency at the panoramic radiograph.One patient presented with an overgrowth of granulomatous soft tissue around the implant abutments that caused pain. CONCLUSIONS Implant placed in vascularized bone grafts are a safe and reliable opportunity to rehabilitate patients following mandibular resection. The results of this series demonstrate a high survival rate for implants placed in reconstructed mandibles with an improvement of the quality of life.
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Long-term outcomes of implant-based dental rehabilitation in head and neck cancer patients after reconstruction with the free vascularized fibula flap. J Craniomaxillofac Surg 2021; 49:845-854. [PMID: 33985871 DOI: 10.1016/j.jcms.2021.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 02/27/2021] [Accepted: 03/11/2021] [Indexed: 01/27/2023] Open
Abstract
The study aimed at evaluating, comprehensively, implant-based dental rehabilitation in head and neck cancer patients after maxillofacial reconstruction with a vascularized free fibula flap (FFF). Data were obtained by retrospectively reviewing the medical records of patients treated in Amsterdam UMC-VU Medical Center. Dental implant survival and implant success according to the Albrektsson criteria were analyzed. Additionally, prosthetic-related outcomes were studied, with a focus on functional dental rehabilitation. In total, 161 implants were placed in FFFs, with a mean follow-up of 4.9 years (range 0.2-23.4). Implant survival was 55.3% in irradiated FFFs and 96% in non-irradiated FFFs. Significant predictors for implant failure were tobacco use and irradiation of the FFF. Implant success was 40.4% in irradiated FFFs and 61.4% in non-irradiated FFFs, mainly due to implant failure and non-functional implants. Implant-based dental rehabilitation was started 45 times in 42 patients, out of 161 FFF reconstructions (27.9%). Thirty-seven patients completed the dental rehabilitation, 29 of whom achieved functional rehabilitation. Irradiation of the FFF negatively influenced attainment of functional rehabilitation. For patients with functional rehabilitation, the body mass index varied at different timepoints: FFF reconstruction, 24.6; dental implantation 23.5; and after placing dental prosthesis, 23.9. Functional implant-based dental rehabilitation, if started, can be achieved in the majority of head and neck cancer patients after FFF reconstruction. Actively smoking patients with an irradiated FFF should be clearly informed about the increased risk for implant and prosthetic treatment failure.
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The use of 3D virtual surgical planning and computer aided design in reconstruction of maxillary surgical defects. Curr Opin Otolaryngol Head Neck Surg 2020; 28:122-128. [PMID: 32102008 DOI: 10.1097/moo.0000000000000618] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The present review describes the latest development of 3D virtual surgical planning (VSP) and computer aided design (CAD) for reconstruction of maxillary defects with an aim of fully prosthetic rehabilitation. The purpose is to give an overview of different methods that use CAD in maxillary reconstruction in patients with head and neck cancer. RECENT FINDINGS 3D VSP enables preoperative planning of resection margins and osteotomies. The current 3D VSP workflow is expanded with multimodal imaging, merging decision supportive information. Development of more personalized implants is possible using CAD, individualized virtual muscle modelling and topology optimization. Meanwhile the translation of the 3D VSP towards surgery is improved by techniques like intraoperative imaging and augmented reality. Recent improvements of preoperative 3D VSP enables surgical reconstruction and/or prosthetic rehabilitation of the surgical defect in one combined procedure. SUMMARY With the use of 3D VSP and CAD, ablation surgery, reconstructive surgery, and prosthetic rehabilitation can be planned preoperatively. Many reconstruction possibilities exist and a choice depends on patient characteristics, tumour location and experience of the surgeon. The overall objective in patients with maxillary defects is to follow a prosthetic-driven reconstruction with the aim to restore facial form, oral function, and do so in accordance with the individual needs of the patient.
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Yu D, Huang J, Yu C, Chen J, Zhao W, Liu J, Zhu H. [Clinical application and accuracy analysis of occlusion-guided functional mandibular reconstruction]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2020; 34:1410-1416. [PMID: 33191699 DOI: 10.7507/1002-1892.202004081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To investigate the influence of the design and application of novel surgical template on the accuracy of reconstructed mandibula and implant position in occlusion-guided functional mandibular reconstruction, so as to provide guidance for clinical treatment. Methods Between January 2017 and May 2019, 11 patients with segmental mandible defects were treated, including 8 males and 3 females with an average age of 31.8 years (range, 19-45 years). There were 6 cases of ameloblastoma, 3 cases of keratocystic tumor, and 2 cases of ossifying fibroma. According to Urken classification of mandible defects, there were 1 case of CRB, 4 cases of RB, 2 cases of RBS, and 4 cases of SB. According to the occlusion relationship, a novel surgical template with the reconstruction titanium plate screws and implants drill-guided information was designed and manufactured. With the help of the novel surgical template, the "one and a half" fibula reconstruction mode was used for jaw functional reconstruction, and the implant supported denture was finally completed. The postoperative CT at 1 week were collected to analyze the morphology of the preoperative virtual design jaw and postoperative jaw. The coincidence of fibular reconstructed mandible (fibular upper barrel, fibular reconstructed ramus and condyle, and whole mandible) and implant in mandible were calculated. When the coincidence was less than 80%, it was considered that the deviation was obvious. Oral panoramic X-ray film and cone beam CT were examined at 6 months after operation to evaluate the osseointegration before implant repair. Results None of the 11 flaps had postoperative vascular crisis. One flap occurred necrosis at 1 month after reconstruction combined with 3 implants failed, and had been removed at 6 months after reconstructed surgery; the others had no flap necrosis. One week postoperatively, the coincidence of the fibular upper barrel was 87.55%±3.08%, the whole mandible was 82.68%±5.94%, and the implant in mandible was 88.00%, with significant differences ( t=8.131, P=0.000; t=2.118, P=0.046; Z=4.070, P=0.000) when compared to 80%, respectively. The fibular reconstructed ramus and condyle was 77.82%±3.54%, with no significant difference ( t=-2.042, P=0.068) when compared to 80%. Six months postoperatively, oral panoramic X-ray film and cone beam CT showed that all 22 implants achieved osseointegration and the palatal mucosa transplantation was performed, then finally completed the denture rehabilitation at 6-9 months after operation. All patients were satisfied with their postoperative appearance. Conclusion The novel surgical template can guarantee the accuracy of functional mandible reconstruction guided by occlusal guidance, and ultimately achieve the beautiful contour of jaw and occlusal function reconstruction, and improve the patient's life quality.
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Affiliation(s)
- Dan Yu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou Zhejiang, 310003, P.R.China
| | - Jianyao Huang
- Department of Stomatology, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu Zhejiang, 322000, P.R.China
| | - Changyang Yu
- 6D Dental Tech Co., Ltd, Hangzhou Zhejiang, 310012, P.R.China
| | - Junling Chen
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou Zhejiang, 310003, P.R.China
| | - Wenquan Zhao
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou Zhejiang, 310003, P.R.China
| | - Jianhua Liu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou Zhejiang, 310003, P.R.China
| | - Huiyong Zhu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou Zhejiang, 310003, P.R.China
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Patel J, Antov H, Nixon P. Implant-supported oral rehabilitation in oncology patients: a retrospective cohort study. Br J Oral Maxillofac Surg 2020; 58:1003-1007. [DOI: 10.1016/j.bjoms.2020.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 05/11/2020] [Indexed: 10/24/2022]
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Dental Implant Survival in Vascularized Bone Flaps: A Systematic Review and Meta-Analysis. Plast Reconstr Surg 2020; 146:637-648. [PMID: 32459736 DOI: 10.1097/prs.0000000000007077] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Maxillofacial reconstruction with vascularized bone restores facial contour and provides structural support and a foundation for dental rehabilitation. Routine implant placement in such cases, however, remains uncommon. This study aims to determine dental implant survival in patients undergoing vascularized maxillary or mandibular reconstruction through a systematic review of the literature. METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, the literature was queried for implant placement in reconstructed jaws using Medical Subject Headings terms on PubMed, Embase, and Cochrane platforms. Weighted implant survivals were calculated for the entire cohort and subcohorts stratified by radiotherapy. Meta-analyses were performed to estimate effect of radiation on implant osseointegration. RESULTS Of 3965 publications identified, 42 were reviewed, including 1084 patients with 3636 dental implants. Weighted implant survival was 92.2 percent at a median follow-up of 36 months. Survival was 97.0 percent in 269 implants placed immediately in 60 patients versus 89.9 percent in 1897 delayed implants placed in 597 patients, with follow-up of 14 and 40 months, respectively. Dental implants without radiotherapy exposure had better survival than those exposed to radiation (95.3 versus 84.6 percent; p < 0.01) at a median follow-up of 36 months. Meta-analyses showed that radiation significantly increased the risk of implant failure (risk ratio, 4.74; p < 0.01) and suggested that implants placed before radiotherapy trended toward better survival (88.9 percent versus 83.4 percent, p = 0.07; risk ratio, 0.52; p = 0.14). CONCLUSIONS Overall implant survival was 92.2 percent; however, radiotherapy adversely impacted outcomes. Implants placed before radiotherapy may demonstrate superior survival than implants placed after.
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Nguyen TTH, Eo MY, Myoung H, Kim MJ, Kim SM. Implant-supported fixed and removable prostheses in the fibular mandible. Int J Implant Dent 2020; 6:44. [PMID: 32778982 PMCID: PMC7417466 DOI: 10.1186/s40729-020-00241-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 06/23/2020] [Indexed: 11/17/2022] Open
Abstract
Background To restore the health-related quality of life (HRQoL) of patients who underwent jaw resection and reconstruction surgery, dental rehabilitation is an essential procedure and also one of the most challenging for oral and maxillofacial surgeons. Even though recent studies have reported the possibility and reliability of dental implant rehabilitation with the fibula free flap (FFF), clinical reports of long-term follow-up cases are scarce. We herein reported seven cases of FFF reconstruction and implant rehabilitation. We also discussed implant planning strategy and surgical techniques. Methods From 2012 to 2019, seven patients were treated with FFF reconstructive jaw surgery combined with dental implant installation and fabrication of implant-supported prostheses at Seoul National University Dental Hospital, Seoul, Korea. Patient characteristics and FFF treatment results were collected. Records of dental implants were analyzed clinically and radiologically. Results Among the seven patients in this report, there were three males and four females, with an average age of 54.4 years. A total of 39 implants were placed in the fibular bone. The mean follow-up period after implant installation was 24 months. Five implants failed and were removed 3 months after installation. The implant success rate was 87.2%. Marginal bone loss at 12 months after loading was 0.23 ± 0.18 mm on the mesial side and 0.25 ± 0.26 mm on the distal side. Conclusion With the challenges present in FFF-reconstructed patients, an implant-supported prosthesis is a reliable option for stable and functional oral rehabilitation. The implant-supported prosthesis on the FFF has great results regarding restoration of function (mastication, swallowing, and speaking), appearance, and overall HRQoL. Collaboration between surgeons and prosthodontists is essential for a satisfying outcome.
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Affiliation(s)
- Truc Thi Hoang Nguyen
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Mi Young Eo
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Hoon Myoung
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Myung-Joo Kim
- Department of Prosthodontics, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Soung Min Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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Bolzoni AR, Baj A, Sweed AH, Giannì AB, Montrasio EF, Beltramini GA. Role of Axial Split Osteotomy of Free Fibula Flap in Mandibular Reconstruction and Dental Rehabilitation. Plast Reconstr Surg Glob Open 2020; 8:e2546. [PMID: 32095389 PMCID: PMC7015618 DOI: 10.1097/gox.0000000000002546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 10/04/2019] [Indexed: 12/03/2022]
Abstract
The fibula free flap (FFF) is regarded as the gold standard in mandibular reconstruction. Dental rehabilitation is important to improve the health-related quality of life of patients undergoing mandibular reconstruction. FFF provides adequate cortical bone osseous tissue for use in dental implantation. The application of “axial split osteotomy” via a double-barrel fibula graft may enable discrepancies between the native mandible and FFF to be avoided, thereby improving the likelihood of early and successful dental rehabilitation.
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Wang W, Zhu J, Xu B, Xia B, Liu Y, Shao S. Reconstruction of mandibular defects using vascularized fibular osteomyocutaneous flap combined with nonvascularized fibular flap. Med Oral Patol Oral Cir Bucal 2019; 24:e691-e697. [PMID: 31433397 PMCID: PMC6764719 DOI: 10.4317/medoral.23040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 07/11/2019] [Indexed: 11/13/2022] Open
Abstract
Background The height of single-layer fibular flap is not long enough to return to the ideal height of the mandible. While the double-layer vascularized fibular osteomyocutaneous flap(VFF) is more complicated in shaping and fixation, along with a longer operation time. The aim of this study was to investigate the clinical effect of VFF combined with nonvascularized fibular flap(NVFF) in the reconstruction of mandibular defect. Material and Methods From September 2016 to June 2018, 15 patients with benign mandibular tumors underwent reconstruction with VFF and NVFF. SimPlant Pro ™ software (version 11.04) was used to simulate reconstruction of the mandible preoperatively. Results All patients were followed up for 8-23 month, with an average of 11.7 months. 15 VFFs survived well. Among the 15 NVFFs, one was almost completely absorbed, two with partial absorption, and the remaining survived regardless of the small amount of absorption. The postoperative absorption of the whole fibula was 7.53±6.362%, a favorable facial contour and speech function were attained. Conclusions The VFF combined with NVFF to reconstruct the mandibular defect can restore the vertical height of the mandible and achieve satisfactory clinical results. Key words:Vascularized fibular osteomyocutaneous flap(VFF), Nonvascularized fibular flap(NVFF), Mandibular defect.
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Affiliation(s)
- W Wang
- No. 1088 Mid Hai Yuan Road, Gaoxin District, Kunming, Yunnan 650106, China,
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Patel SY, Kim DD, Ghali GE. Maxillofacial Reconstruction Using Vascularized Fibula Free Flaps and Endosseous Implants. Oral Maxillofac Surg Clin North Am 2019; 31:259-284. [DOI: 10.1016/j.coms.2018.12.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Blumberg JM, Walker P, Johnson S, Johnson B, Yu E, Lacasse M, Lam DK, Rittenberg B, Yao CM, Chepeha D, Almeida JR, Goldstein DP, Gilbert R. Mandibular reconstruction with the scapula tip free flap. Head Neck 2019; 41:2353-2358. [DOI: 10.1002/hed.25702] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 01/17/2019] [Accepted: 01/29/2019] [Indexed: 11/06/2022] Open
Affiliation(s)
- Jeffrey M. Blumberg
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Paul Walker
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Stephanie Johnson
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Bradley Johnson
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Eugene Yu
- Department of Medical ImagingUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Marie‐Constance Lacasse
- Department of Medical ImagingUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - David K. Lam
- Departments of Surgery and Oral & Maxillofacial SurgeryStony Brook Medicine Stony Brook New York
| | - Brian Rittenberg
- Division Head, Oral and Maxillofacial SurgeryMount Sinai Hospital/Sinai Health System Toronto Ontario Canada
| | - Christopher M.K.L. Yao
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Douglas Chepeha
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - John R. Almeida
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - David P. Goldstein
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
| | - Ralph Gilbert
- Department of Otolaryngology ‐ Head and Neck SurgeryUniversity Health Network, Princess Margaret Cancer Center, University of Toronto Toronto Ontario Canada
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Chen J, Yin P, Li N, Wu L, Jian X, Jiang C. Functional Mandibular Reconstruction With Double-Barrel Fibular Flap and Primary Osseointegrated Dental Implants Improve Facial Esthetic Outcome. J Oral Maxillofac Surg 2019; 77:218-225. [DOI: 10.1016/j.joms.2018.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/12/2018] [Accepted: 08/11/2018] [Indexed: 10/28/2022]
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Cheng KJ, Liu YF, Wang JH, Jun JC, Jiang XF, Wang R, Baur DA. Biomechanical behavior of mandibles reconstructed with fibular grafts at different vertical positions using finite element method. J Plast Reconstr Aesthet Surg 2018; 72:281-289. [PMID: 30482534 DOI: 10.1016/j.bjps.2018.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 08/13/2018] [Accepted: 10/28/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND For large mandibular defects, surgical reconstruction using microvascular fibular grafts has advantages over other alternatives in terms of blood supply and good quality of grafted bone. However, the fibular segment is usually lower in height than that of the original mandible, meaning that the vertical positioning of the fibular graft is variable, with different biomechanical consequences on the reconstructed mandible. OBJECTIVES To use finite element method (FEM) to evaluate stress distribution and displacement of a reconstructed mandible versus an intact mandible under occlusal loads. METHODS A three-dimensional intact edentulous mandibular bone (Model I) and a reconstructed mandible bone with fibular graft were created from CBCT images. Calculation models were generated with fibular bone graft extracted from the reconstructed mandible of identical length placed into a mimicked defect area on the right-hand side of the mandible at three different vertical positions: superior (Model II), intermediate (Model III), and inferior (Model IV). Forces were applied at lower left first molar region and lower left central incisor area. Von Mises stresses and mandibular displacement were calculated as outcome measurements during loadings. RESULTS Maximum stress and strain within the reconstructed mandible were identified at the posterior border of the graft and the contralateral condyle. Maximum displacement occurred near the interface of fibular graft and anterior segment of the mandible. Stress distribution in the graft under functional loads is much higher than that in the residual mandibular segments from Models II to IV. The combined average maximum stress from anterior and posterior loads is 10.66 times higher in the mandible with inferiorly positioned graft (Model IV), 8.72 times for superior graft (Model II), and 3.68 times for intermediate graft (Model III) than that in the control group (Model I). The worst displacement result during functional loadings was in the group with fibular graft located at the inferior border of the mandible. CONCLUSIONS The position of fibular graft placed in the surgical resection site has significant effects on the mechanical behavior of the reconstructed mandible. The fibular graft aligned with the inferior border of the mandible, the most common site designated location by clinicians, has the worst effects on the stress distribution and displacement to the mandibular under functional loads. The fibular graft placed at the intermediate location has the best biomechanics and provides favorable condition for subsequent prosthetic reconstruction.
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Affiliation(s)
- Kang-Jie Cheng
- Key Laboratory of E&M (Zhejiang University of Technology), Ministry of Education & Zhejiang Province, 18 Chaowang Rd., Hangzhou, Zhejiang 310014, China
| | - Yun-Feng Liu
- Key Laboratory of E&M (Zhejiang University of Technology), Ministry of Education & Zhejiang Province, 18 Chaowang Rd., Hangzhou, Zhejiang 310014, China.
| | - Joanne H Wang
- Department of Orthopedic Surgery, University Hospitals of Cleveland, Case Medical Center, 11100 Euclid Ave., Cleveland, OH 44016, USA
| | - Janice C Jun
- Department of Oral Maxillary Surgery, Case Western Reserve University School of Dental Medicine, 10900 Euclid Ave., Cleveland, OH 44106-4905, USA
| | - Xian-Feng Jiang
- Key Laboratory of E&M (Zhejiang University of Technology), Ministry of Education & Zhejiang Province, 18 Chaowang Rd., Hangzhou, Zhejiang 310014, China
| | - Russell Wang
- Department of Comprehensive Care, Case Western Reserve University School of Dental Medicine, 10900 Euclid Ave., Cleveland, OH 44106-4905, USA
| | - Dale A Baur
- Department of Oral Maxillary Surgery, Case Western Reserve University School of Dental Medicine, 10900 Euclid Ave., Cleveland, OH 44106-4905, USA
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Factors Affecting Dental Rehabilitation Following Jaw Reconstruction With Free-Fibular Graft In Patients With Head and Neck Cancer. J Craniofac Surg 2018; 29:2070-2074. [PMID: 30339601 DOI: 10.1097/scs.0000000000004824] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Existing anatomic factors play a significant role in affecting the possibility of dental rehabilitation in head and neck cancer patients undergoing free-fibular graft reconstruction. An observational, cross-sectional study was initiated to evaluate factors affecting dental rehabilitation following free-fibular graft jaw reconstruction in head and neck cancer patients.Patients who had undergone jaw reconstruction with free-fibular graft, requiring dental rehabilitation were recruited. Irradiated, reconstructed patients who had completed at least 1 year since the last dose of radiotherapy and nonradiated patients who had completed 6 months since reconstruction were recruited. Patients who had undergone soft-tissue reconstruction or free-fibular graft in non-condyle sparing resections were excluded. Patient's demographic data, disease and treatment-related data were obtained. An intra-oral examination was carried out to evaluate anatomic variables affecting dental rehabilitation. Descriptive statistical analyses were carried out to study demographic data. Logistic regression analysis was carried out using Pearson χ test and Fisher exact test. Estimates of regression coefficient and their standard errors with 95% confidence interval were calculated.Total of 138 patients were enrolled and considered for prosthetic rehabilitation. A review of the frequency-based data revealed that 30% (n = 41) patients were considered suitable for prosthetic rehabilitation. On multivariate logistic regression analysis, morbidity of radiotherapy (P = 0.01), interference to placement of implants by reconstruction plates and screws (P = 0.023), unfavorable diagnostic maxilla-mandibular relationship (P = 0.011), and obliterated vestibule (P = 0.001) were statistically established (P < 0.05) as the most significant reasons for not carrying out dental rehabilitation in patients who had undergone free-fibular graft reconstruction.
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Desoutter A, Deneuve S, Condamin SC, Chaux-Bodard AG. Long-term implant failure in patients treated for oral cancer by external radiotherapy: a retrospective monocentric study. JOURNAL OF ORAL MEDICINE AND ORAL SURGERY 2018. [DOI: 10.1051/mbcb/2017041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Introduction: The placement of dental implants in irradiated bone has allowed functional rehabilitation for many oral cancer patients. Nonetheless, there is only few data about implant failure in irradiated tissues and their consequences. This retrospective study aims to highlight the rate and circumstances of implant failure. Material and method: Patients treated with external radiotherapy for oral carcinoma and who received dental implants were included. Patients reconstructed with free bone flaps were excluded. Results: Eighteen patients were included. Forty implants were placed between 2004 and 2007, 8 failed, of whom one osteoradionecrosis was observed. Time interval between radiotherapy and implantation was 44.6 (6–182) months. Mean dose was 51.8 (50–66) Gy. Discussion: In the series, the implant failure rate is 20%, which corroborates the literature's data. Failures occur more often for doses over 50 Gy. The placement of dental implant in irradiated bone leads to soft tissue complications but also increases the risk of osteoradionecrosis. The recent reimbursement of dental implants in oral cancer patients by the National Social Health system will probably increase the indications. Multidisciplinary staffs should be aware of benefit/risk ratio for each patient.
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Pellegrino G, Tarsitano A, Ferri A, Corinaldesi G, Bianchi A, Marchetti C. Long-term results of osseointegrated implant-based dental rehabilitation in oncology patients reconstructed with a fibula free flap. Clin Implant Dent Relat Res 2018; 20:852-859. [DOI: 10.1111/cid.12658] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/12/2018] [Accepted: 07/06/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Gerardo Pellegrino
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Bologna Italy
| | - Achille Tarsitano
- Department of Biomedical and Neuromotor Sciences, Maxillofaccial Surgery; University of Bologna; Bologna Italy
| | - Agnese Ferri
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Bologna Italy
| | - Giuseppe Corinaldesi
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Bologna Italy
| | - Alberto Bianchi
- Maxillofacial Surgery Unit; Policlinico S. Orsola; Bologna Italy
| | - Claudio Marchetti
- Department of Biomedical and Neuromotor Sciences, Maxillofaccial Surgery; University of Bologna; Bologna Italy
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Sun J. [Virtual surgical planning and intraoperative navigation for mandibular reconstruction: from accurate to minimal invasive]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2018; 32:821-826. [PMID: 30129302 DOI: 10.7507/1002-1892.201806027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Simultaneous restoration of function and appearance should be performed in mandibular reconstruction. Option of reconstructive techniques is determined by cause, location, extent, and classification of the mandibular defects. Vascularize bone graft is one of the most popular technique in current clinical practice of mandibular reconstruction. Fibula is the most common donor site for mandibular reconstruction. The disadvantage of low height of neo-mandible reconstructed by single fibular segment can be solved by vascularized double barrel fibula graft. Using virtual surgical planning and intraoperative navigation for mandibular reconstruction leads to simplify surgical procedure, reduce operating time and injury, and decrease donor site morbidity so that accurate mandibular reconstruction could be completed. Direction of minimal invasive surgery for mandibular reconstruction will be developed by intraoral approach and intraoral anastomosis.
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Affiliation(s)
- Jian Sun
- Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Research Center of Stomatology, Shanghai, 200011,
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Fahradyan A, Odono L, Hammoudeh JA, Howell LK. Ameloblastic Carcinoma In Situ: Review of Literature and a Case Presentation in a Pediatric Patient. Cleft Palate Craniofac J 2018; 56:94-100. [PMID: 29715060 DOI: 10.1177/1055665618774021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Ameloblastic carcinomas are rare malignant lesions with 3 mandibular pediatric cases reported in the literature. We present a case of ameloblastic carcinoma in situ in a 15-year-old male with a right mandibular cystic lesion on computed tomography. The incisional biopsy revealed plexiform ameloblastoma. Due to the infiltrating and aggressive nature of the tumor, the patient underwent hemimandibulectomy and immediate reconstruction with a vascularized osteocutaneous fibula free flap. The final pathology was read as ameloblastic carcinoma in situ. Given the rarity of this disease in the pediatric population, this case report may be a valuable addition to the current literature.
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Affiliation(s)
- Artur Fahradyan
- 1 Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Lauren Odono
- 2 Division of Oral and Maxillofacial Surgery, Ostrow School of Dentistry of USC, Los Angeles, CA, USA
| | - Jeffrey A Hammoudeh
- 1 Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles, Los Angeles, CA, USA.,2 Division of Oral and Maxillofacial Surgery, Ostrow School of Dentistry of USC, Los Angeles, CA, USA.,3 Division of Plastic and Reconstructive Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - Lori Kathryn Howell
- 1 Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles, Los Angeles, CA, USA.,3 Division of Plastic and Reconstructive Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
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Radiotherapy and Smoking History Are Significant Independent Predictors for Osteosynthesis-Associated Late Complications in Vascular Free Fibula Reconstruction of Mandible. J Craniofac Surg 2017; 28:1508-1513. [DOI: 10.1097/scs.0000000000003704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Nakao M, Aso S, Imai Y, Ueda N, Hatanaka T, Shiba M, Kirita T, Matsuda T. Automated Planning With Multivariate Shape Descriptors for Fibular Transfer in Mandibular Reconstruction. IEEE Trans Biomed Eng 2017; 64:1772-1785. [PMID: 28113257 DOI: 10.1109/tbme.2016.2621742] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sozzi D, Novelli G, Silva R, Connelly ST, Tartaglia GM. Implant rehabilitation in fibula-free flap reconstruction: A retrospective study of cases at 1-18 years following surgery. J Craniomaxillofac Surg 2017; 45:1655-1661. [PMID: 28823690 DOI: 10.1016/j.jcms.2017.06.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/03/2017] [Accepted: 06/27/2017] [Indexed: 10/19/2022] Open
Abstract
PURPOSE To determine the dental implant and prostheses success rate in a cohort of patients who underwent a vascularized fibula-free flap (FFF) for maxillary or mandibular reconstruction. METHODS The investigators implemented a retrospective cohort study composed of patients who had undergone primary or secondary FFF reconstruction jaw surgery plus placement of 2-6 implants in the reconstructed arch, which were restored with an implant-supported prosthesis. The sample was composed of all patients who underwent FFF surgery between 1998 and 2012 and had either simultaneous or secondary dental implant placement. A total of 28 patients met inclusion criteria. Of these, 22 patients participated in the retrospective review. Patients were examined by an independent observer between January-December 2015. In addition, all patients completed a questionnaire to access satisfaction with the implant-supported prosthesis. RESULTS The patient cohort consisted of 12 males and 10 females, age 12-70 years. A total of 100 implants were placed, 92 implants in fibular bone and 8 implants in native bone. In the maxilla, 35 implants were placed into fibular bone and 4 into native bone (11 in irradiated patients and 28 in non-irradiated patients). In the mandible, 57 implants were placed into fibular bone and 4 into native bone (15 in irradiated patients and 46 in non-irradiated patients). The mean follow-up after implant loading was 7.8 years (range 1.3-17.5 years). The implant survival rate was 98% (95% CI: 92.2%-99.5%). No statistically significant difference was found in implant success between maxillary and mandibular implants, or between radiated and non-radiated bone. The prostheses success rate, determined by clinical exam and patient satisfaction, was 100%. CONCLUSION The results of this study suggest that implant survival is high and implant-supported prostheses are a reliable rehabilitation option in patients whose jaws have been reconstruction with a FFF.
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Affiliation(s)
- Davide Sozzi
- Maxillofacial O.U.S. Gerardo Hospital Monza, Dept. of Medicine and Surgery, School of Medicine, University of Milano-Bicocca, Milan, Italy
| | - Giorgio Novelli
- Maxillofacial O.U.S. Gerardo Hospital Monza, Dept. of Medicine and Surgery, School of Medicine, University of Milano-Bicocca, Milan, Italy
| | - Rebeka Silva
- Department of Veterans Affairs Medical Center, San Francisco, CA, USA
| | | | - Gianluca M Tartaglia
- Department of Biomedical Sciences for Health, Functional Anatomy Research Center (FARC), Universita degli Studi di Milano, Milano, Italy; SST Dental Clinic, Segrate, Italy.
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Mandibular reconstruction with vascularised bone flaps: a systematic review over 25 years. Br J Oral Maxillofac Surg 2017; 55:113-126. [DOI: 10.1016/j.bjoms.2016.12.010] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 12/02/2016] [Indexed: 11/19/2022]
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Ikawa T, Shigeta Y, Hirabayashi R, Hirai S, Hirai K, Harada N, Kawamura N, Ogawa T. Computer assisted mandibular reconstruction using a custom-made titan mesh tray and removable denture based on the top-down treatment technique. J Prosthodont Res 2016; 60:321-331. [DOI: 10.1016/j.jpor.2016.01.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 01/06/2016] [Accepted: 01/27/2016] [Indexed: 11/16/2022]
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The Management of Patients after Surgical Treatment of Maxillofacial Tumors. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4045329. [PMID: 27747229 PMCID: PMC5056238 DOI: 10.1155/2016/4045329] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 08/10/2016] [Indexed: 11/17/2022]
Abstract
Morphological and functional disturbances induced by postsurgical defects and loss of tissues in the stomatognathic system due to the treatment of tumors in the maxillofacial region determine the therapeutic needs of patients. The study aimed at clinical and epidemiological evaluation of patients under prosthetic treatment in order to establish the algorithm for rehabilitation. The study group was composed of the patients after midface surgery (45.74%); surgery in a lower part of the face (47.38%); mixed postoperative losses (3.44%); loss of face tissues and surgery in other locations in the head and neck region (3.44%). The supplementary treatment was applied in 69.63% of patients. Clinical and additional examinations were performed to obtain the picture of postoperative loss, its magnitude, and location to plan the strategy of prosthetic rehabilitation. The management algorithm for prosthetic rehabilitation in patients after surgical treatment of maxillofacial neoplasms was based on its division in stages. The location and magnitude of postoperative losses, as well as the implementation of supplementary treatment of the patients after treatment of maxillofacial tumors, influence the planning of prosthetic rehabilitation that plays a key role and facilitates the patients' return to their prior living situation, occupational and family lives.
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Kumar VV, Ebenezer S, Kämmerer PW, Jacob PC, Kuriakose MA, Hedne N, Wagner W, Al-Nawas B. Implants in free fibula flap supporting dental rehabilitation - Implant and peri-implant related outcomes of a randomized clinical trial. J Craniomaxillofac Surg 2016; 44:1849-1858. [PMID: 27697397 DOI: 10.1016/j.jcms.2016.08.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 07/20/2016] [Accepted: 08/29/2016] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The objective of this study was to assess the difference in success rates of implants when using two or four implant-supported-overdentures following segmental mandibular reconstruction with fibula free flap. METHODS AND DESIGNS This prospective, parallel designed, randomized clinical study was conducted with 1:1 ratio. At baseline, all participants already had segmental reconstruction of mandible with free fibula flap. The participants were randomized into two groups: Group-I received implant-supported-overdentures on two tissue-level implants and Group-II received implant-supported-overdentures on four tissue-level implants. Success rates of the implants were evaluated at 3 months, 6 months and 12 months following implant loading using marginal bone level changes as well as peri-implant indices (Buser et al., 1990). RESULTS 52 patients were randomized into two treatment groups (26 each), out of which 18 patients (36 implants) of Group-I and 17 patients (68 implants) of Group-II were evaluated. One implant in Group-I was lost due to infective complications and one patient in the same group had superior barrel necrosis. There was a statistically significant increase at both time points (p = 0.03, p = 0.04 at 6 months, 12 months) in the amount of marginal bone loss in Group-I (0.4 mm, 0.5 mm at 6 months, 12 months) as compared to Group-II (0.1 mm, 0.2 mm at 6 months, 12 months). There were no clinically significant changes peri-implant parameters between both groups. Peri-implant soft tissue hyperplasia was seen in both groups, 32% of implants at 3-months, 26% at 6-months and 3% at 12-months follow-up. CONCLUSION The results of this study show that patients with 2-implant-supported-overdentures had higher marginal bone loss as compared to patients with 4-implant-supported-overdentures. There were no clinically significant differences in peri-implant soft tissue factors in patients with 2- or 4-implant-supported-overdentures. Hyperplastic peri-implant tissues are common in the early implant-loading phase and tend to decrease over time under appropriate management.
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Affiliation(s)
- Vinay V Kumar
- Head and Neck Institute (Head: Dr. Moni A. Kuriakose), Mazumdar Shaw Cancer Center, Narayana Health, Bommasandra, Bangalore, India; Department of Oral and Maxillofacial Surgery-Plastic Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany.
| | - Supriya Ebenezer
- Department of Periodontics, M. R. Ambedkar Dental College & Hospital, Bangalore, India.
| | - Peer W Kämmerer
- Department of Oral and Maxillofacial Surgery-Plastic Surgery, University Medical Center of Rostock University, Rostock, Germany.
| | - P C Jacob
- Head and Neck Institute (Head: Dr. Moni A. Kuriakose), Mazumdar Shaw Cancer Center, Narayana Health, Bommasandra, Bangalore, India.
| | - Moni A Kuriakose
- Head and Neck Institute (Head: Dr. Moni A. Kuriakose), Mazumdar Shaw Cancer Center, Narayana Health, Bommasandra, Bangalore, India.
| | - Naveen Hedne
- Head and Neck Institute (Head: Dr. Moni A. Kuriakose), Mazumdar Shaw Cancer Center, Narayana Health, Bommasandra, Bangalore, India.
| | - Wilfried Wagner
- Department of Oral and Maxillofacial Surgery-Plastic Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany.
| | - Bilal Al-Nawas
- Department of Oral and Maxillofacial Surgery-Plastic Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany.
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