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Kuroshima S, Ohta Y, Uto Y, Al-Omari FA, Sasaki M, Sawase T. Implant-assisted removable partial dentures: Part I. a scoping review of clinical applications. J Prosthodont Res 2024; 68:20-39. [PMID: 37164658 DOI: 10.2186/jpr.jpr_d_22_00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
PURPOSE This scoping review aimed to systematically map research regarding implant-assisted removable partial dentures (IARPDs), and identify existing gaps in knowledge. STUDY SELECTION Two reviewers independently conducted a search of the MEDLINE-PubMed and Scopus databases according to the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) extension for Scoping Review and included articles published in English up to August 31, 2022, including human studies, reviews, and in vitro studies. Expert opinions, animal studies, and clinical studies involving complete overdentures were excluded, and ten aspects for establishing the treatment strategy for IARPDs were examined. RESULTS One hundred and twelve articles were chosen. There were two treatment modalities: IARPDs retained by implant- and tooth-supported surveyed single crowns (SCs) or fixed partial dentures (FPDs). In IARPDs retained by tooth-supported surveyed SCs or FPDs, the survival rate of dental implants for IARPDs was relatively higher with a wide range of marginal bone loss and many complications, but with improved functional performance, oral health-related quality of life, and patient satisfaction. There were limited data on survival or success rates and designs of IARPDs, attachment selections, length and diameter, inclination, placement sites, and loading protocols of implants, regardless of prosthetic types. There was limited information on maxillary IARPDs except for survival rates of implants. CONCLUSIONS Although IARPDs could become a useful treatment strategy, there is limited scientific consensus with gaps in knowledge about their use. Additional well-designed clinical and in vitro studies are necessary to scientifically establish IARPDs as definitive prostheses in implant dentistry.
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Affiliation(s)
- Shinichiro Kuroshima
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yoshikazu Ohta
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yusuke Uto
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Farah A Al-Omari
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Muneteru Sasaki
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Takashi Sawase
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Tun Naing S, Kanazawa M, Hada T, Iwaki M, Komagamine Y, Miyayasu A, Uehara Y, Minakuchi S. In vitro study of the effect of implant position and attachment type on stress distribution of implant-assisted removable partial dentures. J Dent Sci 2022; 17:1697-1703. [PMID: 36299337 PMCID: PMC9588788 DOI: 10.1016/j.jds.2021.11.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/26/2021] [Indexed: 11/30/2022] Open
Abstract
Background/purpose Implant assisted removable partial dentures (IARPDs) improved biomechanical behavior of removable partial dentures (RPDs), but information of the effect of attachment type and implant position is limited. This study aimed to investigate the effect of implant position and attachment type on the stress distribution of IARPDs. Material and methods Four implants, 10 mm in length and 4.1 mm in diameter, were bilaterally placed close to first premolar and second molar regions of a mandibular Kennedy class I model having artificial dentition from canine to canine, vertical to the occlusal plane. Five IARPDs were fabricated to accommodate locator and magnetic attachments. Strain gauges were placed on the model surface to measure the strain around implants during loading. Unilateral vertical loading was applied to the right first molar area with magnitude of 120 N and crosshead speed of 10 mm/min. Measurements were recorded under following conditions: premolar IARPDs with locator or magnetic attachments, molar IARPDs with locator or magnetic attachments. Two-way multiple analysis of variance was performed to compare the maximum principal strain (MPS) around the implants with a significance level of 0.05. Results Implant position had significant effect on the MPS of IARPD on loading and nonloading sides while attachment type only significant on nonloading side. Molar implants showed larger MPS than premolar implants with both locator and magnetic attachments during unilateral loading. Conclusion The stress distribution of the IARPD is significantly affected by implant position wherein anteriorly placed implants exhibit lower MPS than relatively posteriorly placed implants.
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Affiliation(s)
- Sai Tun Naing
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Manabu Kanazawa
- Department of Digital Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tamaki Hada
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Maiko Iwaki
- Department of Oral Prosthetic Engineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuriko Komagamine
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Anna Miyayasu
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoko Uehara
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shunsuke Minakuchi
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Lemos CAA, Nunes RG, Santiago-Júnior JF, Marcela de Luna Gomes J, Oliveira Limirio JPJ, Rosa CDDRD, Verri FR, Pellizzer EP. Are implant-supported removable partial dentures a suitable treatment for partially edentulous patients? A systematic review and meta-analysis. J Prosthet Dent 2021; 129:538-546. [PMID: 34330529 DOI: 10.1016/j.prosdent.2021.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 12/30/2022]
Abstract
STATEMENT OF PROBLEM A consensus on the clinical performance of implant-supported removable partial dentures (ISRPDs) is lacking. PURPOSE The purpose of this systematic review and meta-analysis was to evaluate the clinical performance of ISRPDs in terms of the implant survival rates, marginal bone loss, and patient-reported outcome measures (PROMs). MATERIAL AND METHODS Four electronic databases (MEDLINE/PubMed, EMBASE, Web of Science, and Cochrane Library) were independently searched by 2 reviewers for articles published up to December 2020. A single-arm meta-analysis was performed to evaluate the implant survival rates and marginal bone loss by using the R program. The Cochrane collaboration tool was used to evaluate the risk of bias of randomized controlled trials (RCTs), and the Newcastle-Ottawa scale for non-RCT studies. RESULTS Sixteen studies were included, with a total of 334 participants and a mean age of 58 years. The participants received a total of 581 dental implants, 475 conventional and 106 mini-implants. All included studies reported implant survival rate above 90% (range: 92% to 100%). Meta-analysis indicated a high proportion of implant survival rates of 3% (95% confidence interval [CI]: 2% to 5%) and a low mean raw score of marginal bone loss 0.98 mm (CI: 0.61 to 1.36 mm). Compared with conventional RPDs, improved patient quality of life and satisfaction were reported by studies that evaluated ISRPDs. RCT studies exhibited a low risk of bias for most domains, while most non-RCT studies were classified as good quality. CONCLUSIONS ISRPDs exhibited high implant survival rates and acceptable bone loss with improvement in the quality of life and satisfaction of patients when compared with conventional RPDs. Therefore, they can be considered suitable for the rehabilitation of partially edentulous patients.
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Affiliation(s)
- Cleidiel Aparecido Araujo Lemos
- Adjunct Professor, Department of Dentistry (Division of Prosthodontics), Federal University of Juiz de Fora (UFJF), Campus Avançado de Governador Valadares, School of Dentistry, Governador Valadares, State of Minas Gerais, Brazil.
| | - Rafaela Gaião Nunes
- Graduate, Departament of Dental Materials and Prosthodontics, São Paulo State Univeristy (UNESP), Araçatuba Dental School, Araçatuba, São Paulo, Brazil
| | | | - Jéssica Marcela de Luna Gomes
- Postgraduate Student, Departament of Dental Materials and Prosthodontics, São Paulo State Univeristy (UNESP), Araçatuba Dental School, Araçatuba, São Paulo, Brazil
| | - João Pedro Justino Oliveira Limirio
- Postgraduate Student, Departament of Dental Materials and Prosthodontics, São Paulo State Univeristy (UNESP), Araçatuba Dental School, Araçatuba, São Paulo, Brazil
| | - Cléber Davi Del Rei Daltro Rosa
- Postgraduate Student, Departament of Dental Materials and Prosthodontics, São Paulo State Univeristy (UNESP), Araçatuba Dental School, Araçatuba, São Paulo, Brazil
| | - Fellippo Ramos Verri
- Adjunct Professor, Departament of Dental Materials and Prosthodontics, São Paulo State Univeristy (UNESP), Araçatuba Dental School, Araçatuba, São Paulo, Brazil
| | - Eduardo Piza Pellizzer
- Full Professor, Departament of Dental Materials and Prosthodontics, São Paulo State Univeristy (UNESP), Araçatuba Dental School, Araçatuba, São Paulo, Brazil
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Nogawa T, Saito M, Murashima N, Takayama Y, Yokoyama A. Influence of rigidity of retainers on dynamic behavior of implant-supported removable partial dentures. Int J Implant Dent 2020; 6:60. [PMID: 33089410 PMCID: PMC7578214 DOI: 10.1186/s40729-020-00260-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 09/02/2020] [Indexed: 01/14/2023] Open
Abstract
Background Implant-supported removable partial dentures (ISRPDs) are an effective treatment for partially edentulous patients. ISRPDs improve patients’ satisfaction and oral function to a greater extent than RPDs by improving denture stability and enhancing support. However, the effect of a type of direct retainer on displacement of the abutment teeth and dentures in ISRPDs remains unclear. Therefore, we made a resin mandibular model of unilateral mandibular distal-extension partial edentulism for mechanical simulation and compared the dynamic behavior of the abutment teeth and the denture base among different tooth-borne retainers with various rigidities for RPDs and ISRPDs. Methods A resin mandibular model for mechanical simulation that had unilateral mandibular distal-extension edentulism and was missing the first molar, second molar, first premolar, and second premolar, and a denture fabricated from the patient’s computed tomography images were used. Three types of direct retainers with different connecting rigidities were evaluated. The vertical displacement of the denture base and buccal and lingual sides and the mesial displacement of the abutment teeth were measured. Results Regardless of the rigidity of the direct retainers and loading positions, the displacement of the denture bases in the ISRPDs was significantly smaller than that in the RPDs (P < 0.001). There was no significant difference in vertical displacement of the denture bases among direct retainers with various connecting rigidities in the ISRPDs. Conversely, horizontal displacement of the abutment teeth in both the RPDs and ISRPDs tended to be larger with the cone crown telescope, which has high rigidity, than with the cast cingulum rest and wire clasp, which have much lower rigidities. Conclusion Our results suggested that cast cingulum rest and wire clasps as direct retainers are appropriate ISRPDs to minimize denture movement and suppress displacement of the remaining teeth in patients with unilateral mandibular distal-extension partial edentulism.
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Affiliation(s)
- Toshifumi Nogawa
- Preventive Dentistry, Hokkaido University Hospital, Sapporo, Japan.
| | - Masayasu Saito
- Oral Functional Prosthodontics, Division of Oral Functional Science, Facility of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Naomichi Murashima
- Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | | | - Atsuro Yokoyama
- Oral Functional Prosthodontics, Division of Oral Functional Science, Facility of Dental Medicine, Hokkaido University, Sapporo, Japan
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Al Jaghsi A, Heinemann F, Biffar R, Mundt T. Immediate versus delayed loading of strategic mini-implants under existing removable partial dentures: patient satisfaction in a multi-center randomized clinical trial. Clin Oral Investig 2020; 25:255-264. [PMID: 32533264 DOI: 10.1007/s00784-020-03360-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/19/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate and compare the effects of the immediate and delayed loading of strategic mini-implants (MIs) on the satisfaction of patients with removable partial dentures (RPDs). MATERIALS AND METHODS In this multi-center randomized clinical trial, strategic MIs were inserted under 79 RPDs in 76 participants. Two questionnaires, one for the upper jaw and one for the lower jaw, were given before surgical intervention and 2 weeks, 4 months, 4.5 months, 1 year, 2 years, and 3 years after implant insertion. To estimate the loading effect (immediate vs. delayed) in terms of the odds ratio, an ordinal logistic regression model was used. The Wilcoxon matched-pairs signed-rank test, which was corrected for clusters in the patient population, was used to evaluate changes in patient satisfaction. RESULTS After 4 months, a statistically significant difference in favor of the immediate loading group was recognized in terms of the overall satisfaction score. The patient satisfaction scores recorded after 4.5 months and 1, 2, and 3 years showed substantial improvements compared with the scores recorded before implant insertion in both groups. At the item level, substantial improvements were noted in the following domains: general satisfaction, RPD retention, stability, support, eating, speaking, and aesthetics. CONCLUSIONS Strategic MIs improved the satisfaction of patients with RPDs during the medium-term follow-up period. An earlier improvement in the satisfaction of patients with RPDs was seen after immediate loading of the MIs as compared with delayed loading. CLINICAL RELEVANCE Inserting MIs under existing RPDs can improve patients' satisfaction with their RPDs in several domains.
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Affiliation(s)
- Ahmad Al Jaghsi
- Department of Prosthodontics, Gerodontology and Dental Materials, Greifswald University Medicine, Greifswald, Germany. .,Restorative Department, College of Dentistry, Ajman University, University Street, Al jerf 1, Ajman, United Arab Emirates.
| | - Friedhelm Heinemann
- Department of Prosthodontics, Gerodontology and Dental Materials, Greifswald University Medicine, Greifswald, Germany.,Private Practice, Morsbach-, Lichtenberg, Germany
| | - Reiner Biffar
- Department of Prosthodontics, Gerodontology and Dental Materials, Greifswald University Medicine, Greifswald, Germany
| | - Torsten Mundt
- Department of Prosthodontics, Gerodontology and Dental Materials, Greifswald University Medicine, Greifswald, Germany
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Bural C, Buzbas B, Ozatik S, Bayraktar G, Emes Y. Distal extension mandibular removable partial denture with implant support. Eur J Dent 2019; 10:566-570. [PMID: 28042277 PMCID: PMC5166318 DOI: 10.4103/1305-7456.195180] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
This case report describes the fabrication of a distal extension removable partial denture (RPD) of a 65-year-old man with implant support. Loss of fibroelasticity of the peripheral tissues and reduced mandibular vestibular sulcular depth due to a previous surgical resection and radiotherapy at the right side were the main clinical factors that created difficulty for denture retention and stability. The fabrication of a mandibular RPD supported by anterior teeth and two bilaterally placed implants in the molar area to convert from Kennedy Class 1 design to Kennedy Class 3 implant-bounded RPD is reported. Retention and stability of the denture were improved with implant support on the distal extension site of the RPD. The common clinical problems about distally extended RPDs are lack of retention and stability due to the movement around the rotational axis. Dental implant placement to the distal edentulous site minimizes the potential dislodgement of the RPD is popular. Implant-supported RPD can be suggested as an advantageous and cost-effective treatment option for the partially edentulous patients.
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Affiliation(s)
- Canan Bural
- Department of Prosthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkiye
| | - Begum Buzbas
- Department of Prosthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkiye
| | - Sebnem Ozatik
- Department of Prosthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkiye
| | - Gulsen Bayraktar
- Department of Prosthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkiye
| | - Yusuf Emes
- Department of Oral and Maxillofacial Surgery, Istanbul University Faculty of Dentistry, Istanbul, Turkiye
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Shimizu S, Sato Y, Shirai M, Matsumoto T, Abe M, Ohkubo C. Occlusion accuracy of restorations and removable partial dentures fabricated using the impression under occlusal force with functionally generated path recording. J Oral Sci 2018; 60:484-492. [PMID: 30158340 DOI: 10.2334/josnusd.17-0461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
To evaluate the occlusion accuracy of a novel impression technique, excessively high occlusion and the occlusal contact area during lateral movements were compared between metal restorations (restorations) and removable partial dentures (RPDs) fabricated using conventional and novel techniques. Both restorations and RPDs were fabricated on the simulation model with the precise displacement of the remaining teeth and soft tissue. For the novel technique, functionally generated path (FGP) recording and impression under occlusal force were simultaneously performed using a custom tray with an FGP table. For the two conventional techniques, definitive casts were mounted on an average value articulator and a semi-adjustable articulator in the typical manner. Prostheses were placed on the simulation models, and excessively high occlusion in the intercuspal position and occlusal contact areas during lateral movements were measured. Statistical analyses were performed using Kruskal-Wallis and Steel-Dwass tests (α = 0.05). For both prostheses, conventional techniques showed significantly higher occlusion in the intercuspal position than the novel technique. Moreover, the new technique demonstrated better guidance contact during lateral movements than conventional techniques. This novel technique can be recommended for the fabrication of highly accurate prostheses with appropriate occlusal contact without corrections at delivery.
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Affiliation(s)
- Satoshi Shimizu
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
| | - Yohei Sato
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
| | - Mai Shirai
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
| | | | - Minoru Abe
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
| | - Chikahiro Ohkubo
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
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Clinical Evaluation of Implant-Supported Removable Partial Dentures With a Stress-Breaking Attachment. IMPLANT DENT 2017; 26:516-523. [DOI: 10.1097/id.0000000000000592] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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ELsyad MA, Omran AO, Fouad MM. Strains Around Abutment Teeth with Different Attachments Used for Implant-Assisted Distal Extension Partial Overdentures: An In Vitro Study. J Prosthodont 2015; 26:42-47. [DOI: 10.1111/jopr.12370] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2015] [Indexed: 11/26/2022] Open
Affiliation(s)
- Moustafa Abdou ELsyad
- Department of Removable Prosthodontics, Faculty of Dentistry; University of Mansoura; Eldakahlia Egypt
| | | | - Mohammed Mohammed Fouad
- Department of Removable Prosthodontics, Faculty of Dentistry; University of Mansoura; Eldakahlia Egypt
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Okayama S, Suzuki Y, Shimpo H, Ohkubo C. Fixation of magnet assembly to denture base using alternative resins. Dent Mater J 2015; 34:364-70. [PMID: 25904166 DOI: 10.4012/dmj.2014-348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The fixation strengths between conventional/modified magnetic assemblies and denture base resins were evaluated using six alternative resins. Magnetic assemblies with three different undercut wings were prepared. Soft lining materials with added PMMA resin polymer, two photopolymerization denture relining resins, an experimental resin, and a temporary filling resin were used to fix the magnetic assemblies to the denture bases. As a control, a commercially available magnetic assembly without undercut wings and a conventional autopolymerized resin were also prepared. After surface treatments, the magnetic assemblies were fixed using fixation resins, and tensile strengths and attractive forces were measured using an autography. The experimental resin and the temporary filling resin showed retentive forces comparable to those of conventional autopolymerized resins. Although the experimental resin demonstrated satisfactory fixation strengths, it should be necessary to improve its mechanical strength. The temporary filling resin could be used as a permanent fixation material.
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Affiliation(s)
- Shotaro Okayama
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
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Xiao W, Li Z, Shen S, Chen S, Chen S, Wang J. Influence of connection type on the biomechanical behavior of distal extension mandibular removable partial dentures supported by implants and natural teeth. Comput Methods Biomech Biomed Engin 2015; 19:240-247. [DOI: 10.1080/10255842.2015.1009450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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