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Qiu T, Yang R, Chen L, Liu G, Han J, Guo C. Duplex Fluorinated and Atomic Layer Deposition-Derived ZrO 2 Coatings Improve the Corrosion Resistance and Mechanical Properties of Mg-2Zn-0.46Y-0.5Nd (wt.%) Alloy Plates and Screws. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3485. [PMID: 39063780 PMCID: PMC11278270 DOI: 10.3390/ma17143485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/30/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024]
Abstract
This study investigated the corrosion resistance and mechanical properties of Mg-2Zn-0.46Y-0.5Nd (wt.%) alloy plates and screws with fluorinated coatings and atomic layer deposition (ALD)-derived zirconia (ZrO2) coatings in vitro under physiological stress conditions. Synthetic polyurethane hemimandible replicas were split and fixed as the following three groups of magnesium alloy plates and screws: no additional surface coating treatment (Group A), with fluorinated coatings (Group B), and with duplex fluorinated and ALD-derived 100 nm ZrO2 coatings (Group C). A circulating stress of 1-10 N was applied to the distal bone segment, and a 4-week simulated body fluid immersion test was employed to study the remaining material volume and the mechanical properties of the different groups. Compared with Group A and Group B, the degradation rate of magnesium alloy plates and screws' head regions was significantly slowed down under the protection of duplex MgF2/ZrO2 coatings (p < 0.01). There was no significant difference in the degradation rate of the screw shaft region between groups (p = 0.077). In contrast to fluoride coatings, duplex MgF2/ZrO2 coatings maintained the mechanical strength of magnesium alloy plates and screws after a 14 day in vitro SBF immersion test. We conclude that duplex MgF2/ZrO2 coatings exhibited a certain protective effect on the Mg alloy plates and screws under physiological stress conditions.
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Affiliation(s)
- Tiancheng Qiu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China; (T.Q.); (L.C.)
| | - Rong Yang
- Department of General Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China;
| | - Liangwei Chen
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China; (T.Q.); (L.C.)
| | - Guanqi Liu
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China;
| | - Jianmin Han
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China;
| | - Chuanbin Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China; (T.Q.); (L.C.)
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Sinha SP, Duong TDH, Duy TDT, Ko EWC, Chen YR, Huang CS. Penetration of inferior alveolar nerve canal increased by bicortical fixation after bilateral sagittal split osteotomy in mandibular prognathism. Int J Oral Maxillofac Surg 2021; 51:200-205. [PMID: 33985866 DOI: 10.1016/j.ijom.2021.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 03/10/2021] [Accepted: 04/23/2021] [Indexed: 10/21/2022]
Abstract
The purpose of this three-dimensional cone beam computed tomography (CBCT) study was to identify the difference between monocortical fixation (MCF) and bicortical fixation (BCF) in mandibular canal penetration after bilateral sagittal split osteotomy (BSSO) to correct mandibular prognathism, where interosseous fixation was done by BCF or MCF. CBCT was performed 1 week postoperatively and Dolphin 3D software was used to assess direct penetration of the mandibular canal by either type of screw. The primary outcome variable was the presence or absence of mandibular canal penetration and was categorized as a binary coded variable. The BCF and MCF groups were compared by χ2 test, and the odds ratio for canal penetration was estimated. Multiple logistic regression was performed to identify factors related to canal penetration. A total of 118 patients were included. The MCF group had only 6% canal penetrations (3/50 patients) and the BCF group had 58.8% canal penetrations (40/68 patients). The regression model showed that BCF was the only factor causing mandibular canal penetration, with an adjusted odds ratio of 52.5. Awareness of the increased risk of canal penetration with BCF and potential nerve injury might influence case selection.
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Affiliation(s)
- S P Sinha
- Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - T D H Duong
- Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Department of Maxillofacial Surgery and Odonto-stomatology, National Children's Hospital, Hanoi, Viet Nam
| | - T-D T Duy
- Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Department of Orthodontics, Ho Chi Minh City Dental Hospital, Ho Chi Minh City, Viet Nam
| | - E W-C Ko
- Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Graduate Institute of Dental and Craniofacial Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Y-R Chen
- Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Graduate Institute of Dental and Craniofacial Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - C S Huang
- Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Graduate Institute of Dental and Craniofacial Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Herrera-Vizcaino C, Seifert L, Berdan M, Ghanaati S, Klos M, Landes C, Sader R. Revision of 116 orthognathic surgery patients operated on with the high-oblique sagittal osteotomy (HOSO): a retrospective case series (PROCESS-compliant article). Clin Oral Investig 2020; 25:3229-3236. [PMID: 33106901 PMCID: PMC8060227 DOI: 10.1007/s00784-020-03653-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/20/2020] [Indexed: 10/31/2022]
Abstract
BACKGROUND The high-oblique sagittal osteotomy (HOSO) is an alternative to a bilateral sagittal split osteotomy (BSSO). Due to its novelty, there are no long-term studies which have focused on describing the incidence and type of complications encountered in the post-operative follow-up. The aim of this retrospective study is to analyze patients operated on with this surgical technique and the post-operative complications encountered. PATIENT AND METHODS The electronic medical records of all patients treated with orthognathic surgery at the Department of Oral, Maxillofacial and Facial Plastic Surgery, University Hospital Frankfurt, Goethe University, Frankfurt, Germany, between the years 2009 and 2016 were retrospectively reviewed. RESULTS A total of 116 patients fulfilled the inclusion criteria. The cases operated on with the standard osteosynthesis (X, Y, and straight) showed a complication rate of 36.37% (n = 4/11). The cases operated on with the HOSO-dedicated plates (HOSO-DP) showed, in total, a complication rate of 6.67% (n = 7/105). The most common post-operative complication resulting from both fixation methods was a reduction in mouth opening and TMJ pain for 4.3%. During the first years of performing the surgery (2009-211), a variety of standard plates had material failure causing non-union or pseudarthrosis. No cases of material failure were observed in the cases operated on with the HOSO-DP. The statistical results showed a highly significant dependence of a reduction in OP-time over the years, when the HOSO was performed without additional procedures (R2 > 0.83, P < 0.0015). CONCLUSION The rate of complications in the HOSO were shown to be comparable to the rate of complications from the BSSO reported in the literature. Moreover, the use of the ramus dedicated plate appears to provide enough stability to the bone segments, making the surgery safer. CLINICAL RELEVANCE The HOSO needs to be considered by surgeons as an alternative to BSSO. Once the use of the HOSO-DP was established, the rate of complications and the operation time reduced considerably.
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Affiliation(s)
- C Herrera-Vizcaino
- Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, Frankfurt Am Main, Germany
| | - L Seifert
- Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, Frankfurt Am Main, Germany
| | - M Berdan
- Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, Frankfurt Am Main, Germany
| | - S Ghanaati
- Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, Frankfurt Am Main, Germany
| | - M Klos
- Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, Frankfurt Am Main, Germany
| | - C Landes
- Department of Oral, Maxillofacial and Facial Plastic Surgery, Sana Klinikum, Offenbach am Main, Germany
| | - Robert Sader
- Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, Frankfurt Am Main, Germany.
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Gursoytrak B, Unsal N, Demetoglu U, Simsek HO, Saglam H, Dolanmaz D. Biomechanical evaluation of hybrid fixation method of sagittal split ramus osteotomy in mandibular advancement. J Craniomaxillofac Surg 2018; 46:2063-2068. [PMID: 30446327 DOI: 10.1016/j.jcms.2018.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 04/20/2018] [Accepted: 05/02/2018] [Indexed: 10/16/2022] Open
Abstract
PURPOSE In this study, eight different fixation methods applied after sagittal split ramus osteotomy (SSRO) were compared experimentally. MATERIALS AND METHODS SSRO was performed to 48 sheep hemimandibles in eight groups of 6 each. Group A- a four hole standard miniplate; Group B- a four hole standard miniplate and one bicortical screw; Group C-a four hole locking plate; Group D-a four hole locking plate and one bicortical screw; Group E-a six hole straight miniplate; Group F-a six hole straight miniplate and one bicortical screw; Group G- a sliding plate, which was specifically designed for SSRO; Group H- sliding plate and one bicortical screw. RESULTS In terms of measured values of displacement, the highest degrees of displacement were observed in decreasing order in Groups G, C, A, and E. The least displacement values were detected in Groups H, F, D and B with values being very close to each other. For linear force applied up to 70N, 3 mm or higher displacement values were not seen in any fixation system. CONCLUSION According to the results of study, all systems are suitable for clinic usage. However, intermaxillary fixation or functional elastics may be needed for sliding plate systems during the healing period of hard tissue.
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Affiliation(s)
- Burcu Gursoytrak
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Adnan Menderes University, Aydin, Turkey.
| | - Nurdan Unsal
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Selçuk University, Konya, Turkey
| | - Umut Demetoglu
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Adnan Menderes University, Aydin, Turkey
| | - Hasan Onur Simsek
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Adnan Menderes University, Aydin, Turkey
| | - Haci Saglam
- Department of Mechanical Engineering, Faculty of Technology, Selcuk University, Konya, Turkey
| | - Dogan Dolanmaz
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
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Ulu M, Soylu E, Kelebek S, Dikici S, Oflaz H. Comparative study of biomechanical stability of resorbable and titanium fixation systems after sagittal split ramus osteotomy with a novel designed in-vitro testing unit. J Craniomaxillofac Surg 2018; 46:299-304. [PMID: 29295797 DOI: 10.1016/j.jcms.2017.11.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/24/2017] [Accepted: 11/28/2017] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Sagittal split ramus osteotomy (SSRO) is one of the most popular surgical procedures for correction of mandibular deformities. Several clinical and biomechanical studies exist in the literature which, comparing the stability of different osteosynthesis materials and techniques, were performed using two or three-point biomechanical test models. The aim of this study was to compare the stability of biodegradable and titanium materials for SSRO on one-piece polyurethane mandible samples which were fixed in a novel designed 6-point testing unit. MATERIALS AND METHODS 16 polyurethane one piece replicas of human mandibles were used and bilateral SSRO were performed by the manufacturer according to Dal Pont modification. Mandibles were fixed with titanium and PLLA/PGA fixation materials. Displacement amounts were measured under loading forces using a non-contact extensometer, and strain values at the screws were recorded by strain gauges. RESULTS Bicortical titanium screws (Group 2) showed significantly lower displacement values, while bicortical PLLA/PGA screws (group 4) showed significantly higher displacement values at 40-360 N forces. (p < 0.05). The highest strain value was measured on screws that were inserted upright in a proximal segment near the osteotomy line. CONCLUSION To achieve more realistic results in biomechanical studies, test models should imitate jaw movements and test environments should be as similar as possible to physiological conditions. Newly designed six-point testing units will contribute to future biomechanical studies.
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Affiliation(s)
- Murat Ulu
- Izmir Katip Celebi University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Izmir, Turkey
| | - Emrah Soylu
- Gaziosmanpasa University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Tokat, Turkey.
| | | | - Serkan Dikici
- Izmir Katip Celebi University, Faculty of Engineering, Department of Biomedical Engineering, Izmir, Turkey
| | - Hakan Oflaz
- Izmir Katip Celebi University, Faculty of Engineering, Department of Biomedical Engineering, Izmir, Turkey
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Ueki K, Moroi A, Yoshizawa K, Hotta A, Tsutsui T, Fukaya K, Hiraide R, Takayama A, Tsunoda T, Saito Y. Comparison of skeletal stability after sagittal split ramus osteotomy among mono-cortical plate fixation, bi-cortical plate fixation, and hybrid fixation using absorbable plates and screws. J Craniomaxillofac Surg 2017; 45:178-182. [DOI: 10.1016/j.jcms.2016.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 09/28/2016] [Accepted: 11/10/2016] [Indexed: 11/29/2022] Open
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Thiele OC, Kreppel M, Bittermann G, Bonitz L, Desmedt M, Dittes C, Dörre A, Dunsche A, Eckert AW, Ehrenfeld M, Fleiner B, Frerich B, Gaggl A, Gerressen M, Gmelin L, Hammacher A, Haßfeld S, Heiland M, Hemprich A, Hidding J, Hölzle F, Howaldt HP, Iizuka T, Kater W, Klein C, Klein M, Köhnke RH, Kolk A, Kübler AC, Kübler NR, Kunkel M, Kuttenberger JJ, Kreusch T, Landes C, Lehner B, Mischkowski RA, Mokros S, Neff A, Nkenke E, Palm F, Paulus GW, Piesold JU, Rasse M, Rodemer H, Rothamel D, Rustemeyer J, Sader R, Scheer M, Scheffler B, Schippers C, Schliephake H, Schmelzeisen R, Schramm A, Spitzer WJ, Stoll C, Terheyden H, Weingart D, Wiltfang J, Wolff KD, Ziegler CM, Zöller JE. Moving the mandible in orthognathic surgery - A multicenter analysis. J Craniomaxillofac Surg 2016; 44:579-83. [PMID: 27017103 DOI: 10.1016/j.jcms.2016.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 01/11/2016] [Accepted: 01/27/2016] [Indexed: 11/30/2022] Open
Abstract
Orthognathic surgery has always been a classical focus of maxillofacial surgery. Since more than 100 years, various surgical techniques for mandibular repositioning have been developed and clinically tested. Since the establishment of plate and screw osteosynthesis, orthognathic surgery became more stable and safe. Nowadays, different surgical methods for mobilising the mandible are existing. This international multicenter analysis (n = 51 hospitals) is providing first evidence based data for the current use of different surgical methods. The dominating techniques were Obwegeser/dal Pont (61%) followed by Hunsuck/Epker (37%) and Perthes/Schlössmann (29%). The main osteosynthesis materials were plates (82%), bicortical screws (23.5%), or a combination of both (5.9%). 47% of all centers reported to use several surgical methods at the same time, depending on the anatomical problem and the surgeon's preference. This shows that different surgical methods seem to work as comparable, safe, and reliable procedures in everydays clinical practise. On this basis, further prospective studies could evaluate possible advantages for our patients.
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Affiliation(s)
- Oliver C Thiele
- Department of Oral, Maxillofacial and Facial Plastic Surgery (Head: Prof. R. A. Mischkowski), Ludwigshafen Hospital, Germany.
| | - Matthias Kreppel
- Department of Craniomaxillofacial and Plastic Surgery (Head: Prof. J.E. Zöller), University of Cologne, Germany
| | - Gido Bittermann
- Department of Oral and Maxillofacial Surgery (Head: Prof. R. Schmelzeisen), University Medical Center Freiburg, Germany
| | - Lars Bonitz
- Department of Craniomaxillofacial Surgery - Plastic Surgery (Head: Prof. S. Haßfeld), University Witten/Herdecke, Hospital Dortmund, Germany
| | - Maria Desmedt
- Fachklinik Hornheide, Department of Cranio-Maxillofacial Surgery (Head: Prof. M. Klein), Münster, Germany
| | - Carsten Dittes
- Department of Oral and Maxillofacial Surgery (Head: C. Dittes), Dietrich-Bonhoeffer-Hospital, Neubrandenburg, Germany
| | - Annegret Dörre
- Department of Oral and Maxillofacial Surgery (Head: A. Dörre), Chemnitz Hospital, Germany
| | - Anton Dunsche
- Department of Oral and Maxillofacial Surgery (Head: Prof. A. Dunsche), City Hospital Karlsruhe, Germany
| | - Alexander W Eckert
- Department of Oral and Maxillofacial Surgery and Facial Plastic Surgery (Head: Prof. A. Eckert), Martin-Luther-University Halle-Wittenberg, Germany
| | - Michael Ehrenfeld
- Department of Oral and Maxillofacial Surgery (Head: Prof. M. Ehrenfeld), Ludwig Maximilians University of Munich, Germany
| | - Bernd Fleiner
- Oral and Maxillofacial Surgery (Head: B. Fleiner), Im Pferseepark, Augsburg, Germany
| | - Bernhard Frerich
- Department of Oral and Maxillofacial Surgery (Head: Prof. B. Frerich), Facial Plastic Surgery, Rostock University Medical Center, Germany
| | - Alexander Gaggl
- Department of Oral and Maxillofacial Surgery (Head: Prof. A. Gaggl), Paracelsus Medical University Salzburg, Austria
| | - Marcus Gerressen
- Department of Oral, Maxillofacial and Plastic Facial Surgery (Head: PD M. Gerressen), Heinrich-Braun Hospital Zwickau, Germany
| | - Leonore Gmelin
- Department of Oral, Maxillofacial and Facial Plastic Surgery (Head: Prof. R. A. Mischkowski), Ludwigshafen Hospital, Germany
| | - Andreas Hammacher
- Department of Oral and Maxillofacial Surgery (Head: Prof. A. Hammacher and H. Sieber), Malteser Hospital St. Johannes, Duisburg, Germany
| | - Stefan Haßfeld
- Department of Craniomaxillofacial Surgery - Plastic Surgery (Head: Prof. S. Haßfeld), University Witten/Herdecke, Hospital Dortmund, Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery (Head: Prof. M. Heiland), University Medical Center Hamburg-Eppendorf, Germany
| | - Alexander Hemprich
- Department of Oral and Maxillofacial Plastic Surgery (Head: Prof. A. Hemprich), Leipzig University, Germany
| | - Johannes Hidding
- Department of Oral and Maxillofacial Surgery (Head: Prof. J. Hidding), Bethesda Hospital Mönchengladbach, Germany
| | - Frank Hölzle
- Department of Oral, Maxillofacial and Plastic Facial Surgery (Head: Prof. F. Hölzle), RWTH Aachen University Hospital, Germany
| | - Hans-Peter Howaldt
- Department for Cranio-Maxillofacial Surgery, Plastic Surgery (Head: Prof. H.P. Howaldt), University Hospital Giessen, Germany
| | - Tateyuki Iizuka
- Department of Cranio-Maxillofacial Surgery (Head: Prof. T. Iizuka), Inselspital, Bern University Hospital, Switzerland
| | - Wolfgang Kater
- Department of Oral and Maxillofacial Surgery (Head: W. Kater), Hochtaunus Hospital Bad Homburg, Germany
| | - Cornelius Klein
- Department of Oral and Maxillofacial Surgery (Head: Prof. C. Klein), Donauisar Hospital Deggendorf, Germany
| | - Martin Klein
- Fachklinik Hornheide, Department of Cranio-Maxillofacial Surgery (Head: Prof. M. Klein), Münster, Germany
| | - Robert H Köhnke
- Department of Oral and Maxillofacial Surgery (Head: Prof. M. Heiland), University Medical Center Hamburg-Eppendorf, Germany
| | - Andreas Kolk
- Department of Oral and Cranio-Maxillofacial Surgery (Head: Prof. K.D. Wolff), Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Alexander C Kübler
- Department of Oral and Maxillofacial Plastic Surgery (Head: Prof. A.C. Kübler), University of Würzburg, Germany
| | - Norbert R Kübler
- Department of Cranio- and Maxillofacial Surgery (Head: Prof. N.R. Kübler), Heinrich-Heine-University Düsseldorf, Germany
| | - Martin Kunkel
- Department of Oral and Plastic Maxillofacial Surgery (Head: Prof. M. Kunkel), Ruhr-University Bochum, Germany
| | - Johannes J Kuttenberger
- Department of Oral and Maxillofacial Surgery (Head: PD J. Kuttenberger), Luzerner Kantonsspital, Switzerland
| | - Thomas Kreusch
- Department of Oral and Maxillofacial Plastic Surgery (Head: Prof. T. Kreusch), Asklepios Hospital Nord, Hamburg, Germany
| | - Constantin Landes
- Department of Oral and Maxillofacial Surgery (Head: Prof. C. Landes), Sana Hospital Offenbach, Germany
| | - Bernhard Lehner
- Department of Oral and Maxillofacial Surgery (Head: B. Lehner), Health Center St. Marien, Hospital Amberg, Germany
| | - Robert A Mischkowski
- Department of Oral, Maxillofacial and Facial Plastic Surgery (Head: Prof. R. A. Mischkowski), Ludwigshafen Hospital, Germany
| | - Steffen Mokros
- Department of Oral and Maxillofacial Surgery (Head: S. Mokros), Ameos Hospital Halberstadt, Germany
| | - Andreas Neff
- Department of Oral and Maxillofacial Surgery (Head: Prof. A. Neff), University of Marburg, University Hospital Giessen and Marburg, Campus Marburg, Germany
| | - Emeka Nkenke
- Department of Oral and Maxillofacial Surgery (Head: Prof. E. Nkenke), Medical University of Vienna, Austria
| | - Frank Palm
- Department of Oral and Maxillofacial Surgery (Head: Prof. F. Palm), Hospital Konstanz, Germany
| | - Gerhard W Paulus
- Department of Oral and Maxillofacial Surgery (Head: Prof. G.W. Paulus), Paracelsus Hospital Munich, Germany
| | - Jörn U Piesold
- Department of Oral and Maxillofacial Surgery (Head: PD J.U. Piesold), Helios Hospital Erfurt, Germany
| | - Michael Rasse
- Department for Cranio-, Maxillofacial and Oral Surgery (Head: Prof. M. Rasse), Medical University Innsbruck, Austria
| | - Herbert Rodemer
- Department of Oral and Maxillofacial Surgery (Head: H. Rodemer), Saarbrücken Hospital, Germany
| | - Daniel Rothamel
- Department of Craniomaxillofacial and Plastic Surgery (Head: Prof. J.E. Zöller), University of Cologne, Germany
| | - Jan Rustemeyer
- Department of Oral and Maxillofacial Surgery (Head: Prof. J. Rustemeyer), Plastic Operations, Hospital Bremen, Germany
| | - Robert Sader
- Department of Oral, Maxillofacial and Plastic Facial Surgery (Head: Prof. R. Sader), University Medical Centre Frankfurt/Main, Germany
| | - Martin Scheer
- Department of Oral and Maxillofacial Surgery (Head: PD M. Scheer), Hospital Minden, Germany
| | - Birgit Scheffler
- Department of Oral and Maxillofacial Surgery and Facial Plastic Surgery (Head: Prof. A. Eckert), Martin-Luther-University Halle-Wittenberg, Germany
| | - Christian Schippers
- Department of Oral and Maxillofacial Surgery (Head: Prof. C. Schippers), Agaplesion Diakonie Hospital Rotenburg (Wümme), Germany
| | - Henning Schliephake
- Department of Oral and Maxillofacial Surgery (Head: Prof. H. Schliephake), George-Augusta-University, Göttingen, Germany
| | - Rainer Schmelzeisen
- Department of Oral and Maxillofacial Surgery (Head: Prof. R. Schmelzeisen), University Medical Center Freiburg, Germany
| | - Alexander Schramm
- Department of Oral and Maxillofacial Surgery (Head: Prof. A. Schramm), Facial Plastic Surgery, Military Hospital of Ulm and University Hospital Ulm, Germany
| | - Wolfgang J Spitzer
- Department for Oral and Maxillofacial Surgery (Head: Prof. W. Spitzer), University Clinic of Saarland, Homburg/Saar, Germany
| | - Christian Stoll
- Department of Oral and Maxillofacial Surgery (Head: Prof. C. Stoll), Ruppiner Kliniken, Neuruppin, Germany
| | - Hendrik Terheyden
- Department of Oral and Maxillofacial Surgery (Head: Prof. H. Terheyden), Red Cross Hospital, Kassel, Germany
| | - Dieter Weingart
- Department of Oral and Maxillofacial Surgery (Head: Prof. D. Weingart), Katharinen Hospital, Stuttgart, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery (Head: Prof. J. Wiltfang), University Hospital of Schleswig-Holstein, Campus Kiel, Germany
| | - Klaus D Wolff
- Department of Oral and Cranio-Maxillofacial Surgery (Head: Prof. K.D. Wolff), Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Christoph M Ziegler
- Department of Oral and Maxillofacial Surgery (Head: Prof. C. Ziegler), St Olavs University Hospital, Norwegian University for Science and Technology, Trondheim, Norway
| | - Joachim E Zöller
- Department of Craniomaxillofacial and Plastic Surgery (Head: Prof. J.E. Zöller), University of Cologne, Germany
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Moroi A, Yoshizawa K, Iguchi R, Ikawa H, Kosaka A, Hotta A, Tsutsui T, Saida Y, Ueki K. The amount of mandibular setback influence on occlusal force following sagittal split ramus osteotomy. J Craniomaxillofac Surg 2015; 43:1743-8. [PMID: 26431610 DOI: 10.1016/j.jcms.2015.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 07/15/2015] [Accepted: 08/18/2015] [Indexed: 11/16/2022] Open
Abstract
PURPOSE The purpose of this study was to examine the influence between the magnitude of setback in sagittal split ramus osteotomy (SSRO) and occlusal contact area and bite force without relapse after surgery. PATIENTS AND METHODS Sixty female patients with a diagnosis of mandibular prognathism were divided into 3 groups according to the magnitude of setback: group 1 (≤5 mm), group 2 (>5 mm but <10 mm), and group 3 (≥10 mm). All patients underwent skeletal analysis by lateral and frontal cephalogrammetry and measured the occlusal contact area and bite force by the pressure-sensitive system (Dental Prescale, Dental Occlusion Pressuregraph FDP-705; Fuji Photo Film Co., Tokyo, Japan) preoperatively and postoperatively at 1 month, 3 months, 6 months, and 1 year. RESULTS There were no significant differences in occlusal contact area and bite force between the 3 groups. Only group 3 showed a significant difference in occlusal contact area and bite force between the preoperative and 1-year measurements. CONCLUSION The results indicate that the magnitude of setback did not influence the bite force or occlusal contact area in SSRO.
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Affiliation(s)
- Akinori Moroi
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan.
| | - Kunio Yoshizawa
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Ran Iguchi
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Hiroumi Ikawa
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Akihiko Kosaka
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Asami Hotta
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Takamitsu Tsutsui
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Yuriko Saida
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Koichiro Ueki
- Department of Oral & Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
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