Now showing 1 - 10 of 10
  • 2009Journal Article
    [["dc.bibliographiccitation.firstpage","454"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","The Angle Orthodontist"],["dc.bibliographiccitation.lastpage","461"],["dc.bibliographiccitation.volume","79"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Attin, Thomas"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Kubein-Meesenburg, Dietmar"],["dc.contributor.author","Gripp-Rudolph, Liliam"],["dc.contributor.author","Attin, Rengin"],["dc.date.accessioned","2018-11-07T08:30:05Z"],["dc.date.available","2018-11-07T08:30:05Z"],["dc.date.issued","2009"],["dc.description.abstract","Objective: To evaluate the significance of crown-root angles (CRAs) by testing the null hypothesis that there are no significant differences in deviations of third-order angles to axial inclination values between Angle Class II division 2 incisors and a neutral occlusion control sample. Materials and Methods: The study group comprised n(total) = 130 whites with either Angle Class II division 2 (n(1) = 62; group A) or neutral (n(2) = 68; control group B) occlusal relationships. Upper central incisor inclination (U1) was assessed with reference to the cephalometric lines NA and palatal plane (U1NA/deg, U1PP/deg). Craniofacial sagittal and vertical relations were classified using angles SNA, SNB, ANB, and NSL-PP. Third-order angles were derived from corresponding dental cast pairs using an incisor inclination gauge. Welch's two-sample t-tests (alpha-level:.05) were used to test the null hypothesis. Single linear regression was applied to determine third-order angle values as a function of axial inclination values (U1NA, U1PP) or sagittal craniofacial structures (ANB angle), separately for group A and B. Results: The discrepancy between axial inclination (U1NA, U1PP) and third-order angles is significantly different (P <.001) between groups A and B. Regression analysis revealed a simply moderate correlation between third-order measurements and axial inclinations or sagittal craniofacial structures. Conclusion: The hypothesis is rejected. The results of this study warn against the use of identical third-order angles irrespective of diminished CRAs typical for Angle Class II division 2 subjects. Routine CRA assessment may be considered in orthodontic treatment planning of Angle Class II division 2 cases. (Angle Orthod. 2009;79:454-461.)"],["dc.identifier.doi","10.2319/042508-234"],["dc.identifier.isi","000266052200008"],["dc.identifier.pmid","19413389"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5785"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16807"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prĂĽfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0003-3219"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","On the Interaction between Incisor Crown-Root Morphology and Third-Order Angulation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article
    [["dc.bibliographiccitation.firstpage","491"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","International Journal of Morphology"],["dc.bibliographiccitation.lastpage","496"],["dc.bibliographiccitation.volume","33"],["dc.contributor.author","Engelke, Wilfried"],["dc.contributor.author","Beltrán, Víctor"],["dc.contributor.author","Decco, Oscar"],["dc.contributor.author","Valdivia-Gandur, Iván"],["dc.contributor.author","Navarro, Pablo"],["dc.contributor.author","Fuentes, Ramón"],["dc.date.accessioned","2015-11-09T09:03:24Z"],["dc.date.accessioned","2021-10-27T13:20:21Z"],["dc.date.available","2015-11-09T09:03:24Z"],["dc.date.available","2021-10-27T13:20:21Z"],["dc.date.issued","2015"],["dc.description.abstract","The buccal alveolar wall represents the most important structure to provide shape and volume of the alveolous following tooth extraction. The aim of the study was the evaluation of buccal alveolar bone structures following minimally invasive surgery. In 15 patients (3 male, 12 female), aged 20–67 years, 3 central incisors, 5 lateral incisors, and 7 bicuspids were removed using flapless enucleation. The enucleation comprised endoscopically assisted mesiodistal root sectioning with inward fragmentation of the oral and apical parts followed by internal reduction of the buccal root lamella. Buccal bone height before extraction was 10.61 mm, following extraction 10.50 mm. Crestal width of the buccal bone plate was 1.11 mm before and 1.40 mm after tooth removal. Apical buccal bone width before was 0.66 mm and after extraction 0.40 mm. Gingival height was 13.58 mm before and 13.56 mm following extraction. Following transalveolar enucleation, the buccal alveolar bone wall remains unchanged concerning height and crestal width."],["dc.description.abstract","La pared alveolar bucal representa la estructura más importante para proveer la forma y el volumen de los alveólos dentales posterior a la extracción dental. El objetivo del estudio fue evaluar las estructuras de hueso alveolar bucal después de la cirugía mínimamente invasiva. En 15 pacientes (3 hombres, 12 mujeres), con edades entre 20 a 67 años, 3 incisivos centrales, 5 incisivos laterales y 7 premolares fueron removidos utilizando enucleación sin colgajo. La enucleación comprende el seccionamiento mesio-distal de la raíz dental endoscópicamente asisitido a través de fragmentación interna de la porción lingual y apical radicular y posteriomente una reducción interna de la lamela de raíz bucal. La altura ósea bucal antes de la extracción fue 10,61 mm y después de la extracción fue 10,50 mm. La anchura de la cresta ósea bucal fue 1,11 mm y 1,40 mm después de la extracción del diente. El grosor del hueso apical antes de la extracción fue 0,66 mm y 0,40 mm después de la extracción. La altura gingival fue 13,58 mm antes de la extracción y 13,56 mm después de la extracción. Después de la enucleación transalveolar, la pared del hueso alveolar bucal se mantiene sin cambios en relación con la altura y del grosor del reborde alveolar."],["dc.identifier.doi","10.4067/S0717-95022015000200014"],["dc.identifier.isi","000362256800013"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12383"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91958"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Soc Chilena Anatomia"],["dc.relation.issn","0717-9502"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.rights","CC BY-NC 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc/4.0"],["dc.title","Changes in Morphology of Alveolar Buccal Walls Following Atraumatic Internal Root Fragmentation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article
    [["dc.bibliographiccitation.artnumber","e0145767"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Lazzarini, Marcio"],["dc.contributor.author","StĂĽhmer, Walter"],["dc.contributor.author","Beltran, Victor"],["dc.date.accessioned","2018-11-07T09:47:20Z"],["dc.date.available","2018-11-07T09:47:20Z"],["dc.date.issued","2015"],["dc.description.abstract","Using an endoscopic approach, small intraoral bone chambers, which are routinely obtained during tooth extraction and implantation, provide visual in vivo access to internal bone structures. The aim of the present paper is to present a new method to quantify bone microstructure and vascularisation in vivo. Ten extraction sockets and 6 implant sites in 14 patients (6 men / 8 women) were examined by support immersion endoscopy (SIE). After tooth extraction or implant site preparation, microscopic bone analysis (MBA) was performed using short distance SIE video sequences of representative bone areas for off-line analysis with ImageJ. Quantitative assessment of the microstructure and vascularisation of the bone in dental extraction and implant sites in vivo was performed using ImageJ. MBA revealed bone morphology details such as unmineralised and mineralised areas, vascular canals and the presence of bleeding through vascular canals. Morphometric examination revealed that there was more unmineralised bone and less vascular canal area in the implant sites than in the extraction sockets."],["dc.identifier.doi","10.1371/journal.pone.0145767"],["dc.identifier.isi","000367481900078"],["dc.identifier.pmid","26713617"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12697"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35089"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prĂĽfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Support Immersion Endoscopy in Post-Extraction Alveolar Bone Chambers: A New Window for Microscopic Bone Imaging In Vivo"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article
    [["dc.bibliographiccitation.firstpage","4843"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Materials"],["dc.bibliographiccitation.lastpage","4856"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Decco, Oscar A."],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Zuchuat, Jesica I."],["dc.contributor.author","Cura, Andrea C."],["dc.contributor.author","Lezcano, Maria F."],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T09:53:39Z"],["dc.date.available","2018-11-07T09:53:39Z"],["dc.date.issued","2015"],["dc.description.abstract","Background: Bone augmentation is a subject of intensive investigation in regenerative bone medicine and constitutes a clinical situation in which autogenous bone grafts or synthetic materials are used to aid new bone formation. Method: Based on a non-critical defect, Co-Cr barrier membranes were placed on six adult Fauve de Bourgogne rabbits, divided into two groups: whole blood and PRP. Three densitometric controls were performed during the experiment. The animals were euthanized at 30, 45, 60, and 110 days. The presence of newly formed bone was observed. Samples for histological studies were taken from the augmentation center. Results: External and internal bone tissue augmentation was observed in almost all cases. Significant differences between PRP- and whole blood-stimulated bone augmentation were not observed. At 60 days, bones with PRP presented higher angiogenesis, which may indicate more proliferation and cellular activity. Conclusion: PRP activates the bone regeneration process under optimized conditions by stimulation of osteoblast proliferation after six weeks, when a significant difference in cellular activity was observed. Membranes could stimulate bone augmentation at the site of placement and in the surrounding areas."],["dc.identifier.doi","10.3390/ma8084843"],["dc.identifier.isi","000360643900016"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13654"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36370"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prĂĽfen"],["dc.notes.submitter","Najko"],["dc.publisher","Mdpi Ag"],["dc.relation.issn","1996-1944"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Bone Augmentation in Rabbit Tibia Using Microfixed Cobalt-Chromium Membranes with Whole Blood and Platelet-Rich Plasma"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2016Journal Article
    [["dc.bibliographiccitation.artnumber","35"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Head & Face Medicine"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Valdivia-Gandur, Ivan"],["dc.contributor.author","Engelke, Wilfried"],["dc.contributor.author","Beltrán, VĂ­ctor"],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Fuentes, RamĂłn"],["dc.contributor.author","Manzanares-CĂ©spedes, MarĂ­a C."],["dc.date.accessioned","2019-07-09T11:42:53Z"],["dc.date.available","2019-07-09T11:42:53Z"],["dc.date.issued","2016"],["dc.description.abstract","Abstract Background The success of bone augmentation to a major degree depends on the biomechanics and biological conditions of the surrounding tissues. Therefore, an animal model is needed providing anatomical sites with similar mechanical pressures for comparing its influence on different biomaterials for bone regeneration. The present report describes the new bone formation associated to biomaterial in a bursa created in the epidural space, between dura mater and cranial calvaria, under the constant pressure of cerebrospinal fluid. Methods Five adult California rabbits were used for the trial. In each animal, two bursae were created in the epidural spaces, in the anterior part of the skull, below both sides of the interfrontal suture. The spaces between dura mater and cranial calvaria were filled with in-situ hardening biphasic calcium phosphate containing hydroxyapatite and beta tricalcium-phosphate (BCP), in-situ hardening phase-pure beta-tricalcium phosphate (β-TCP) or without any biomaterials (sham). After 90 days, the animals were sacrificed, and the defect sites were extracted and processed for histomorphometric analysis by optical and backscattered electron microscopy. Results The cranial epidural spaces created (n = 10) could be preserved by the application both BCP (n = 3) and β-TCP biomaterials (n = 3) in all experimental sites. The sites augmented with BCP showed less new bone formation but a trend to better volume preservation than the sites augmented with β-TCP. However, the bone in the BCP sites seemed to be more mature as indicated by the higher percentage of lamellar bone in the sites. In contrast, the created space could not be preserved, and new bone formation was scarce in the sham-operated sites (n = 4). Conclusion The experimental bursae created bilaterally in the epidural space allows comparing objectively bone formation in relation to biomaterials for bone regeneration under permanent physiological forces from cerebrospinal fluid pressure."],["dc.identifier.doi","10.1186/s13005-016-0131-z"],["dc.identifier.pmid","27906068"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13935"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58776"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","BioMed Central"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Novel use of cranial epidural space in rabbits as an animal model to investigate bone volume augmentation potential of different bone graft substitutes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","1019"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","European Archives of Oto-Rhino-Laryngology"],["dc.bibliographiccitation.lastpage","1025"],["dc.bibliographiccitation.volume","270"],["dc.contributor.author","Santander, Petra"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Olthoff, Arno"],["dc.contributor.author","Voelter, Christiane"],["dc.date.accessioned","2018-11-07T09:27:42Z"],["dc.date.available","2018-11-07T09:27:42Z"],["dc.date.issued","2013"],["dc.description.abstract","Swallowing disturbances are common after neurological disease and oropharyngeal tumor resection. In this case the oral stage is often affected. So far the clinical evaluation of the oral phase is limited. Recently the role of pressure changes during oropharyngeal swallowing has been pointed out, but until now there are not enough data. Thereby 52 healthy adults aged between 20 and 45 years were examined using an oral shield (Silencos(A (R)), Bredent, Senden, Germany) connected to a digital manometer (GDUSB 1000(A (R)), Greisinger electronics, Regenstauf, Germany) able to record pressures in a range of 2,000 to -1,000 mbar at a frequency of 1 kHz. Three swallowing conditions were measured: an active bolus intake (ABI) of water, a passive bolus application of a water-bolus (PWA) and a passive application of a gel-bolus (PGA). We found negative pressures with a median value of -278.9 mbar during ABI, of -24.2 mbar during PWA and of -29.4 mbar during PGA. Significant differences in pressure amplitudes and the pressure pattern were observed depending on the kind of bolus application and its consistency. The used test presents a simple and easy to handle method to assess the oral phase of swallowing."],["dc.identifier.doi","10.1007/s00405-012-2299-6"],["dc.identifier.isi","000315443000033"],["dc.identifier.pmid","23238701"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10305"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30600"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prĂĽfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0937-4477"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Intraoral pressure patterns during swallowing"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article
    [["dc.bibliographiccitation.artnumber","975470"],["dc.bibliographiccitation.journal","Case reports in dentistry"],["dc.bibliographiccitation.volume","2014"],["dc.contributor.author","Beltrán, Víctor"],["dc.contributor.author","Cantín, Mario"],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Fuentes, Ramón"],["dc.contributor.author","Engelke, Wilfried"],["dc.date.accessioned","2019-07-09T11:41:17Z"],["dc.date.available","2019-07-09T11:41:17Z"],["dc.date.issued","2014"],["dc.description.abstract","The surgical removal of supernumerary teeth is necessary in some cases, especially before the commencement of any orthodontic or implant treatment procedure. In the mandibular supernumerary premolar, a more conservative approach is required because of the presence of complications associated with conventional surgery due to the close proximity of the said premolar to the alveolar inferior and mental nerves, and the need for bone conservation for implant placement. The endoscopic surgical approach has been used for the removal of the maxillary supernumerary tooth, impacted third molar, and implants. In this case report, we present an endoscopically assisted surgical technique for the removal of an unerupted supernumerary premolar in the mandible associated with a dental implant placement procedure."],["dc.identifier.doi","10.1155/2014/975470"],["dc.identifier.fs","611960"],["dc.identifier.pmid","24772355"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11916"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58394"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2090-6447"],["dc.rights","CC BY 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/3.0"],["dc.title","Endoscopic Removal of a Supernumerary Premolar in the Mandible during a Dental Implant Placement."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2012Journal Article Research Paper
    [["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Revista Clínica de Periodoncia, Implantología y Rehabilitación Oral"],["dc.bibliographiccitation.lastpage","83"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Fuentes, R."],["dc.contributor.author","Beltrán, V."],["dc.contributor.author","Cantín, M."],["dc.contributor.author","Engelke, W."],["dc.date.accessioned","2014-12-16T13:00:48Z"],["dc.date.accessioned","2021-10-27T13:20:14Z"],["dc.date.available","2014-12-16T13:00:48Z"],["dc.date.available","2021-10-27T13:20:14Z"],["dc.date.issued","2012"],["dc.description.abstract","La variada posición anatómica de los terceros molares mandibulares presenta importantes desafíos asociados a su profundidad y grado de inclinación. Las complicaciones más habituales del procedimiento quirúrgico convencional de extracción se relacionan con la extensa osteotomía y poca visualización del sitio quirúrgico, que pueden generar consecuencias post-quirúrgicas como inflamación, dolor, trismus, lesiones reversibles e irreversibles del nervio alveolar inferior (NAI) o nervio lingual, riesgo de fractura y formación de defectos periodontales del segundo molar. La implementación de soportes rígidos en la óptica endoscópica ha permitido utilizar esta tecnología para realizar abordajes mínimamente invasivos para remover terceros molares mediante accesos flapless con una mínima osteotomía de la zona oclusal, conservando la pared bucal y lingual a través de la visualización directa y magnificada del sitio quirúrgico, adaptable a los movimientos del paciente durante la intervención. En este reporte se presenta un nuevo procedimiento quirúrgico mínimamente invasivo a través de asistencia endoscópica para la conservación ósea en la remoción de terceros molares mandibulares con riesgo de lesión del nervio alveolar inferior."],["dc.description.abstract","Anatomic variability of the position of mandibular third molars represents significant challenges associated with its depth and angulation. The most common complications of conventional surgical procedure are related to extensive osteotomy and poor visualization, which can cause postsurgical effects such as inflammation, pain, trismus, reversible and irreversible lesions of the inferior alveolar nerve (IAN) or lingual nerve, fracture risk and formation of a deep periodontal defect on the distal aspect of the second molar. The implementation of rigid endoscopy in optics has allowed to use this technology via a minimally invasive approach to remove third molars by a minimally occlusal flapless ostectomy, preserving the buccal and lingual walls through direct and magnified visualization of the surgical site, adaptable to the patient's movements during the surgery. In this report, we present a new and minimally invasive procedure through endoscopic assistance for bone conservation in the removal of third molars at risk of inferior alveolar nerve injury"],["dc.identifier.doi","10.1016/S0718-5391(12)70097-6"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11320"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91949"],["dc.language.iso","es"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.issn","0718-5391"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.rights","CC BY-NC-ND 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/3.0"],["dc.title","Remoción de terceros molares mandibulares con asistencia endoscópica. Nota técnica de un nuevo procedimiento quirúrgico para prevenir lesiones del NAI y formación de defectos óseos"],["dc.title.translated","Removal of mandibular third molars with endoscopic approach. Technical naote of a new surgical procedure to avoid IAN damage and bone defect formation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2011Journal Article
    [["dc.bibliographiccitation.firstpage","165"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Clinical Oral Investigations"],["dc.bibliographiccitation.lastpage","176"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Knoesel, Michael"],["dc.date.accessioned","2018-11-07T08:57:53Z"],["dc.date.available","2018-11-07T08:57:53Z"],["dc.date.issued","2011"],["dc.description.abstract","Oral posture is considered to have a major influence on the development and reoccurrence of malocclusion. A biofunctional model was tested with the null hypotheses that (1) there are no significant differences between pressures during different oral functions and (2) between pressure measurements in different oral compartments in order to substantiate various postural conditions at rest by intra-oral pressure dynamics. Atmospheric pressure monitoring was simultaneously carried out with a digital manometer in the vestibular inter-occlusal space (IOS) and at the palatal vault (sub-palatal space, SPS). Twenty subjects with normal occlusion were evaluated during the open-mouth condition (OC), gently closed lips (semi-open compartment condition, SC), with closed compartments after the generation of a negative pressure (CCN) and swallowing (SW). Pressure curve characteristics were compared between the different measurement phases (OC, SC, CCN, SW) as well as between the two compartments (IOS, SPS) using analysis of variance and Wilcoxon matched-pairs tests adopting a significance level of alpha = 0.05. Both null hypotheses were rejected. Average pressures (IOS, SPS) in the experimental phases were 0.0, -0.08 (OC); -0.16, -1.0 (SC); -48.79, -81.86 (CCN); and -29.25, -62.51 (SW) mbar. CCN plateau and peak characteristics significantly differed between the two compartments SPS and IOS. These results indicate the formation of two different intra-oral functional anatomical compartments which provide a deeper understanding of orofacial biofunctions and explain previous observations of negative intra-oral pressures at rest."],["dc.identifier.doi","10.1007/s00784-009-0367-0"],["dc.identifier.isi","000288256200005"],["dc.identifier.pmid","20127264"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6647"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23511"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prĂĽfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","Heidelberg"],["dc.relation.issn","1432-6981"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Intra-oral compartment pressures: a biofunctional model and experimental measurements under different conditions of posture"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","401"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Dysphagia"],["dc.bibliographiccitation.lastpage","407"],["dc.bibliographiccitation.volume","27"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Klein, Sabine"],["dc.contributor.author","Bleckmann, Annalen"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T09:06:51Z"],["dc.date.available","2018-11-07T09:06:51Z"],["dc.date.issued","2012"],["dc.description.abstract","Habitual mouth breathing is often accompanied by habitual anterior tongue thrust, instead of a lip closure, in order to create the anterior seal necessary for the initiation of physiological deglutition. We tested the null hypothesis of no significant influence of oral maneuver and the use of oral screens on tongue coordination and position during deglutition in 29 subjects (age = 6-16; mean = 9.69 years; 13/16 female/male) with habitual open-mouth posture using intraoral polysensography. The target parameters for swallowing were swallowing-associated nasal airflow interruption (NAI) and coordination of tongue-palate contact during NAI. Conventional myofunctional maneuvers could be facilitated and made more efficient, in terms of increasing the numbers of favorable early tongue-palate contacts typical of somatic swallowing, if accompanied by the application of an oral screen. Habitual open-mouth breathing does not necessarily coincide with distinctively pronounced proportions of late tongue-palate contact."],["dc.identifier.doi","10.1007/s00455-011-9383-8"],["dc.identifier.fs","583828"],["dc.identifier.isi","000307518100012"],["dc.identifier.pmid","22207245"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8046"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25647"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prĂĽfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0179-051X"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Coordination of Tongue Activity During Swallowing in Mouth-breathing Children"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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