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Suman V, Sonnahalli NK, Chowdhary R. Use of Facebow device in prosthodontics: A systematic review on randomized control trials. J Indian Prosthodont Soc 2021; 21:11-18. [PMID: 33835064 PMCID: PMC8061434 DOI: 10.4103/jips.jips_197_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/29/2020] [Accepted: 08/28/2020] [Indexed: 11/18/2022] Open
Abstract
Aim Recording the maxillomandibular relationship is important in various prosthodontic treatments. Evidence of face-bow transfer resulting in improved outcome is conflicting. Hence the objective of this study is to determine the use of face-bow transfer in prosthodontics. Settings and Design : Systematic review based on PRISMA guidelines.">. Materials and Methods A protocol was developed prior, which covered all aspects of the review. The databases explored were MEDLINE database, ScienceDirect, and Cochrane collaboration library. The PICO model included participants who received a complete denture/partial denture prosthesis. Intervention was the use of the face-bow device. Comparator was prosthesis made with a simple procedure of not using a face-bow device for prosthodontic rehabilitation. Outcomes were patient satisfaction with dentures, the stability of the dentures, esthetics, and time taken for clinical and laboratory procedures. Only randomized clinical trials were included in this study. The methodological quality of the studies was assessed according to the Cochrane risk of bias tool. Statistical Analysis Used Qualitative analysis. Results A total of 144 articles were identified. On excluding 4 duplicates and screening the title and abstracts of the rest of the records based on exclusion criteria only 15 studies were selected for review. Conclusions The use of the face-bow did not yield superior results for the quality of the prosthesis. Therefore, there is no evidence for the utility of face-bow transfer in complete denture treatment. However, no inference could be drawn for its utility in partial denture prosthodontics as there was no study to draw an inference.
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Affiliation(s)
- Vijyanta Suman
- Department of Prosthodontics, Rajarajeswari Dental College and Hospital, Bengaluru, Karnataka, India
| | | | - Ramesh Chowdhary
- Department of Prosthodontics, Rajarajeswari Dental College and Hospital, Bengaluru, Karnataka, India
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Zhang HY, Yang HX, Liu Q, Xie MJ, Zhang J, Liu X, Liu XD, Yu SB, Lu L, Zhang M, Wang MQ. Injury responses of Sprague-Dawley rat jaw muscles to an experimental unilateral anterior crossbite prosthesis. Arch Oral Biol 2020; 109:104588. [DOI: 10.1016/j.archoralbio.2019.104588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 02/06/2023]
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von Stein-Lausnitz M, Sterzenbach G, Helm I, Zorn A, Blankenstein FH, Ruge S, Kordaß B, Beuer F, Peroz I. Does a face-bow lead to better occlusion in complete dentures? A randomized controlled trial: part I. Clin Oral Investig 2017; 22:773-782. [PMID: 28674819 DOI: 10.1007/s00784-017-2152-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 06/08/2017] [Indexed: 11/28/2022]
Abstract
OBJECTIVES In a double-blinded randomized controlled clinical trial, the impact of face-bow registration for remounting complete dentures (CDs) on the occlusal parameters (part I) was evaluated. MATERIALS AND METHODS New CDs of 32 patients were duplicated and mounted after intraoral pin registration according to mean settings (group 1) and (group 2) using a face-bow (arbitrary hinge axis). The vertical dimension was reduced to the first occlusal contact point, and a bite record was fabricated in the articulator. The number of contacts and the number of teeth in contact were evaluated by a computer program (laboratory result). After randomization, half of the CDs were adjusted according to protocol of group 1 and group 2 and delivered to the patients. After 3 days (T1) and 84 days (T2), clinical static contact points and teeth in contact were counted. Contact points and teeth in contact of both groups (laboratory results) and at different moments (clinical results) were analyzed statistically with the F test and bootstrapping. RESULTS Laboratory: No. 2 (face-bow) showed more occlusal contact points than no. 1 (mean setting), p > 0.05. The number of teeth with at least one occlusal contact was significantly higher in no. 2 (p = 0.027). Clinic: The mean number of teeth with at least one clinical contact point was significantly higher in no. 1 (no. 1 = 7.13, no. 2 = 5.31; p = 0.042). Extent of the vertical shift poorly correlated with number of laboratory occlusal contact points (R 2 = 0.017). CONCLUSIONS Considering the complex multistep study design, a limited number of participants, and referring to one specific arbitrary face-bow, the following conclusion could be drawn: no substantial difference by the use of the arbitrary face-bow compared to a mean setting could be determined, when changing the vertical dimension in the articulator within a remounting procedure of complete dentures. CLINICAL RELEVANCE Further research is necessary to determine the effects of different arbitrary face-bows on the fabrication and adaptation of removable dentures.
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Affiliation(s)
- Manja von Stein-Lausnitz
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany.
| | - Guido Sterzenbach
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany
| | - Iven Helm
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany
| | - Antje Zorn
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany
| | - Felix H Blankenstein
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany
| | - Sebastian Ruge
- Department of Digital Dentistry - Occlusion and Function Therapy, Centre of Dentistry and Oral Health, Ernst Moritz Arndt University of Greifswald, 17475, Greifswald, Germany
| | - Bernd Kordaß
- Department of Digital Dentistry - Occlusion and Function Therapy, Centre of Dentistry and Oral Health, Ernst Moritz Arndt University of Greifswald, 17475, Greifswald, Germany
| | - Florian Beuer
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany
| | - Ingrid Peroz
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Aßmannshauser Str 4-6, 14197, Berlin, Germany
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Solaberrieta E, Otegi JR, Mínguez R, Etxaniz O. Improved digital transfer of the maxillary cast to a virtual articulator. J Prosthet Dent 2014; 112:921-4. [PMID: 24836282 DOI: 10.1016/j.prosdent.2014.03.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 03/24/2014] [Accepted: 03/26/2014] [Indexed: 12/31/2022]
Abstract
The clinical procedure described provides a quantifiable, repeatable, and reliable method of transferring the location of the maxillary dental arch from the patient directly to a virtual articulator (virtual facebow transfer) by means of reverse engineering devices to design a customized dental restoration. This procedure allows the dentist and the dental laboratory technician to work in a fully digital environment without having to mount stone casts on a mechanical articulator. In addition, specific suggestions are provided for designing the transfer device to enhance patient comfort during the data transfer process and reduce deviation.
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Affiliation(s)
- Eneko Solaberrieta
- Associate Professor, Department of Graphic Design and Engineering Projects, Faculty of Engineering at Bilbao, University of the Basque Country (UPV/EHU), Bilbao, Spain.
| | - Jose Ramon Otegi
- Assistant Professor, Department of Graphic Design and Engineering Projects, Faculty of Engineering at Bilbao, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Rikardo Mínguez
- Associate Professor, Department of Graphic Design and Engineering Projects, Faculty of Engineering at Bilbao, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Olatz Etxaniz
- Associate Professor, Department of Graphic Design and Engineering Projects, Faculty of Engineering at Bilbao, University of the Basque Country (UPV/EHU), Bilbao, Spain
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Vecchia MPD, Regis RR, Cunha TR, de Andrade IM, da Matta JCS, de Souza RF. A randomized trial on simplified and conventional methods for complete denture fabrication: cost analysis. J Prosthodont 2013; 23:182-91. [PMID: 23890072 DOI: 10.1111/jopr.12090] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2013] [Indexed: 11/29/2022] Open
Abstract
PURPOSE This study aimed to quantify the costs of complete denture fabrication by a simplified method compared with a conventional protocol. MATERIALS AND METHODS A sample of edentulous patients needing conventional maxillary and mandibular complete dentures was randomly divided into group S, which received dentures fabricated by a simplified method, and group C, which received conventionally fabricated dentures. We calculated direct and indirect costs for each participant including unscheduled procedures. This study assessed 19 and 20 participants allocated into groups S and C, respectively, and comparisons between groups were conducted by the Mann-Whitney and Student's t-test (α = 0.05). RESULTS Complete denture fabrication demanded median time periods of 173.2 and 284.5 minutes from the operator for groups S and C respectively, and 46.6 and 61.7 minutes from the dental assistant (significant differences, p < 0.05). There was no difference between groups regarding postinsertion adjustments. Group S showed lower values for costs with materials and time spent by patients than group C during the fabrication stage, but not during adjustments. CONCLUSIONS The median direct cost of complete denture treatment was 34.9% lower for the simplified method. It can be concluded that the simplified method is less costly for patients and the health system when compared with a conventional protocol for the rehabilitation of edentulous patients.
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Abstract
It is the aim of this paper to give a few examples of dogmas related to prosthodontics and oral implants and to discuss the controversial role of occlusion in the aetiology of temporomandibular disorders. New knowledge is developing at a rapidly increasing rate in dentistry, as in other areas of society. Our lecturers at university taught us many useful things. But, as time goes by, what is still relevant? Some methods are so well established that they deserve to be called dogmas. It is implied that a dogma is not supported by strong evidence, even though it has existed and been practised for a long time. In the era of evidence-based dentistry it is appropriate to scrutinize such issues. A review of the current literature indicates that conflicting opinions exist concerning a number of common procedures in clinical dentistry, mainly due to a scarcity of good studies with unambiguous results. There is therefore a need for more high-quality clinical research in attempting to reach the goal of evidence-based clinical practice. The dental community should take an active part in this process.
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Affiliation(s)
- Gunnar E Carlsson
- Department of Prosthetic Dentistry, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.
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