Engelke, Wilfried G. H.

[["dc.bibliographiccitation.firstpage","1269"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Journal of Oral and Maxillofacial Surgery"],["dc.bibliographiccitation.lastpage","1270"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Cantin, Mario"],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T09:09:49Z"],["dc.date.available","2018-11-07T09:09:49Z"],["dc.date.issued","2012"],["dc.identifier.doi","10.1016/j.joms.2012.02.030"],["dc.identifier.isi","000304672700007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26350"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","W B Saunders Co-elsevier Inc"],["dc.relation.issn","0278-2391"],["dc.title","ENDOSCOPIC VISUALIZATION OF ANATOMIC STRUCTURES AS A SUPPORT TOOL IN ORAL SURGERY AND IMPLANTOLOGY In reply"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","letter_note"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","213"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Cranio-Maxillofacial Surgery"],["dc.bibliographiccitation.lastpage","219"],["dc.bibliographiccitation.volume","42"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Cantin, Mario"],["dc.contributor.author","Choi, Eun-Jin"],["dc.contributor.author","Navarro, Pablo"],["dc.contributor.author","Fuentes, Ramon"],["dc.date.accessioned","2018-11-07T09:42:03Z"],["dc.date.available","2018-11-07T09:42:03Z"],["dc.date.issued","2014"],["dc.description.abstract","Purpose: Conventional surgical extraction of impacted mandibular third molars (M3M) requires a lateral flap reflection in conjunction with lateral bone removal for outward mobilization of the tooth. The aim of this report is to outline a novel inward fragmentation technique (IFT) in conjunction with an occlusal miniflap approach to reduce the amount of bone removal to a minimum. Patients and methods: Seventeen consecutive patients (7 men and 10 women; mean age 24.4 years, range 18-36 years) required the extraction of 21-impacted M3M with a close relationship to the inferior alveolar nerve (IAN). Occlusal miniflaps were used and only occlusal bone removal was performed to expose the M3M under endoscopic vision. A central space-making cavity was created followed by inward fragmentation and mobilization of the crown and subsequent root removal through the space created. Results: 20 of 21 sites healed uneventfully, one late infection was observed, no permanent neurosensory lesion occurred. The mean preoperative buccal bone height was 15.5 (11-18) mm and the postoperative buccal bone height 14.7 (11-17) mm. On the 2nd day, the mean swelling level was 1.38 (0-2) on a 4 point scale, the pain level was 2.30 (0-5) on a 10 cm VAS, mean pain duration was 2.04 days. Conclusion: An inward fragmentation technique allows preservation of >90% of the buccal bone height adjacent to mandibular third molars and may reduce postoperative morbidity without raising the risk of IAN lesions. (C) 2013 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.jcms.2013.05.003"],["dc.identifier.isi","000333855300005"],["dc.identifier.pmid","23850159"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33872"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Churchill Livingstone"],["dc.relation.issn","1878-4119"],["dc.relation.issn","1010-5182"],["dc.title","Removal of impacted mandibular third molars using an inward fragmentation technique (IFT) - Method and first results"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","543"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","International Journal of Morphology"],["dc.bibliographiccitation.lastpage","549"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Cantin, Mario"],["dc.contributor.author","Fuentes Fernandez, Ramon"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T09:01:27Z"],["dc.date.available","2018-11-07T09:01:27Z"],["dc.date.issued","2011"],["dc.description.abstract","The anterior mandible region is generally considered a safe surgical area, involving few risks of damage to vital anatomic structures. However, this area has an intraosseous canal, the mandibular incisive canal (MIC), the continuation of the mandibular canal, mesial to the mental foramen where the mandibular incisive nerve along with vascular structures is located. The presence and course of the incisive nerve remains a matter of debate and some authors even neglect it. This case report defines the anatomic courses of the incisive mandibular canal bilaterally using cone-beam computed tomography and confirms the presence of the incisive nerve by endoscopically assisted surgical technique. The knowledge of the MIC presence, length and diameter may play an important role in successful implant osseointegration and prevention of postoperative sensory disturbances."],["dc.identifier.isi","000293661000040"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24430"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Soc Chilena Anatomia"],["dc.relation.issn","0717-9502"],["dc.title","Bilateral Presence of Mandibular Incisive Canal. An Anatomical Structure with Clinical Relevance"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1160"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE"],["dc.bibliographiccitation.lastpage","1165"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Decco, Oscar A."],["dc.contributor.author","Cura, Andrea C."],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Beltran, Victor"],["dc.date.accessioned","2018-11-07T09:46:09Z"],["dc.date.available","2018-11-07T09:46:09Z"],["dc.date.issued","2014"],["dc.description.abstract","Titanium barriers have been used for guided bone regeneration in preclinical and preliminary clinical reports as a possible alternative to bone grafting. In two cases with lateral bone defects, rigid titanium barriers were used to provide a secluded space in conjunction with bone substitutes. Sufficient lateral bone volume was generated for implant placement, and no complications were observed during 2 years of follow up. In conclusion, space-making stiff titanium barriers may be applied successfully for lateral alveolar crest augmentation."],["dc.identifier.isi","000336740600053"],["dc.identifier.pmid","24955200"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34799"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E-century Publishing Corp"],["dc.relation.issn","1940-5901"],["dc.title","Rigid occlusive titanium barriers for alveolar bone augmentation: two reports with 24-month follow-up"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["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","Stühmer, 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 prüfen"],["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"]]

[["dc.bibliographiccitation.firstpage","378"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","International Journal of Surgery"],["dc.bibliographiccitation.lastpage","383"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Prieto, Ruth"],["dc.contributor.author","Valdivia-Gandur, Ivan"],["dc.contributor.author","Navarro, Pablo"],["dc.contributor.author","Cristina Manzanares, Maria"],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Fuentes, Ramon"],["dc.date.accessioned","2018-11-07T09:46:12Z"],["dc.date.available","2018-11-07T09:46:12Z"],["dc.date.issued","2014"],["dc.description.abstract","The aim of this study was to histologically evaluate the performance of demineralized bone matrix (DBM) when compared with a blood clot in addition to an occlusive barrier in the bone regeneration process for bone defects in a rabbit model. Prefabricated metallic capsules with 4.5 mm and 3.5 mm dimensions were placed in five adult rabbit skulls. At the right side, the capsule was filled with DBM, and the clot was located on the left side. The barriers were supplied with a 0.5 mm horizontal peripheral flap and a vertical edge, fitting tightly into a circular slit prepared by a trephine in the skull. After a healing period of three months, the animals were sacrificed, and the samples were prepared for histological and histomorphometric analyses after capsule removal. Trabecular and medullar bone percentages were calculated from the different areas of the newly formed bone inside the metallic barriers, and non-parametric statistical analysis was used to describe the findings. The results showed a complete filling of newly formed bone inside the capsules of both groups. Less mature bone tissue was observed in the upper third of all samples, and a higher trabecular area was observed in the samples with DBM. The use of barriers resulted in the augmentation of newly formed bone in a three-month period. However, a higher trabecular area was observed in the barriers filled with DBM. (C) 2014 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.ijsu.2014.03.010"],["dc.identifier.isi","000336490600002"],["dc.identifier.pmid","24657709"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34814"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1743-9159"],["dc.relation.issn","1743-9191"],["dc.title","Augmentation of intramembranous bone in rabbit calvaria using an occlusive barrier in combination with demineralized bone matrix (DBM): A pilot study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["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 prüfen"],["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"]]

[["dc.bibliographiccitation.firstpage","3234"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE"],["dc.bibliographiccitation.lastpage","3240"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Leiva, Carolina"],["dc.contributor.author","Wagner, Gunar"],["dc.contributor.author","Beltran, Victor"],["dc.date.accessioned","2018-11-07T10:03:13Z"],["dc.date.available","2018-11-07T10:03:13Z"],["dc.date.issued","2015"],["dc.description.abstract","Different endoscope optics for the visualization of interradicular structures were evaluated as a diagnostic tool. A sample of 20 extracted human lower molar teeth was used. Only teeth with fully formed apices were included. All samples were evaluated with three different endoscopic procedures: pulp endoscopy (PE), canal entrance endoscopy (CEE) and root canal endoscopy (RCE). All pulp chambers could be observed using PE (100%), however, only 41 of 60 (68.3%) canals were observed. With CEE, all entrances could be observed, and the middle third of the canals could be visualized in 85% of the canals. The semiflexible endoscope for RCE allowed successful observation of 91.6% of the middle third of the canals. The application of the endoscope may be useful in the identification of root canals even under difficult visual work field conditions. The combined use of a set of various optics might enable the operator to enhance the quality of non-surgical endodontic procedures."],["dc.identifier.isi","000355307300018"],["dc.identifier.pmid","26064213"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38408"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E-century Publishing Corp"],["dc.relation.issn","1940-5901"],["dc.title","In vitro visualization of human endodontic structures using different endoscope systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","75"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","International Journal of Morphology"],["dc.bibliographiccitation.lastpage","81"],["dc.bibliographiccitation.volume","31"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Matthijs, Andries"],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Valdivia-Gandur, Ivan"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T09:27:10Z"],["dc.date.available","2018-11-07T09:27:10Z"],["dc.date.issued","2013"],["dc.description.abstract","The centripetal resorption of maxilla is a continuous process after tooth loss. For treatment of deficient bone sites, autologous bone grafts may be used, as an alternative, biomaterials can be applied which do not require intra-or extraoral donor sites. The present report we describe the use of anorganic bovine bone (ABB) based on three case reports under different modes: Membrane, rigid barrier and connective tissue graft. Clinical results show that under all conditions, sufficient hard tissue was formed to allow implant born rehabilitation in the former insufficient bone sites. Histologic evaluation revealed trabecular bone in an almost mature matrix with resting particles of ABB. Depending on the original site situation, two step rigid occlusive barrier concept may be applied, if resting bone does not provide implant stability, whereas membrane covered augmentation in combination with connective tissue is recommended if simultaneous implant insertion is possible"],["dc.identifier.isi","000321868400011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30472"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Soc Chilena Anatomia"],["dc.relation.issn","0717-9502"],["dc.title","Bone Healing in Transverse Maxillary Defects with Different Surgical Procedures Using Anorganic Bovine Bone in Humans"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1714"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE"],["dc.bibliographiccitation.lastpage","1720"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Dias, Fernando Jose"],["dc.contributor.author","Leiva, Carolina"],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Borie, Eduardo"],["dc.date.accessioned","2018-11-07T09:45:53Z"],["dc.date.available","2018-11-07T09:45:53Z"],["dc.date.issued","2014"],["dc.description.abstract","The aim of this study was to histologically evaluate the potential for vertical bone augmentation of the Bio-Oss (R) graft compared to a blood clot in conjunction with an occlusive barrier in the rabbit calvaria defect model. Metallic dome shaped barriers with 4.5 mm width and 3.5 mm height were positioned in six adult rabbit skulls. At the right side, the barrier was filled with Bio-Oss (R), and the left side was filled with a blood clot. After a healing period of three months, the animals were sacrificed, and the samples were prepared for histological and histomorphometric analyses. The total mineralized area (TMA) as well as the newly formed bone (NBA) was calculated as the percentage of the bone augmentation inside the metallic barriers, and parametric statistical analysis was used to describe the findings. The samples with blood clots exhibited significantly less TMA formation than the Bio-Oss (R) group. However, the difference in the amount of NBA was not statistically significant. Furthermore, the Bio-Oss (R) specimens exhibited remaining graft particles within the sample. In conclusion, the barriers filled with Bio-Oss (R) exhibited significantly higher TMA than those with only blood clots, and the remaining Bio-Oss (R) particles were integrated into newly formed bone tissue to fill the spaces and promote a greater volume than the samples from the blood clot groups."],["dc.identifier.isi","000341256700012"],["dc.identifier.pmid","25126169"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34737"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E-century Publishing Corp"],["dc.relation.issn","1940-5901"],["dc.title","Occlusive barriers in combination with particulate Bio-Oss (R) graft: a pilot study on rabbit calvaria"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]