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","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","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"]]

[["dc.bibliographiccitation.firstpage","694"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","International Journal of Morphology"],["dc.bibliographiccitation.lastpage","701"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Bustos, L."],["dc.contributor.author","Oporto, Gonzalo"],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Sandoval, Paulo"],["dc.contributor.author","Garay, I."],["dc.contributor.author","Bizama, M."],["dc.contributor.author","Borquez, P."],["dc.date.accessioned","2018-11-07T09:01:28Z"],["dc.date.available","2018-11-07T09:01:28Z"],["dc.date.issued","2011"],["dc.description.abstract","Among structural alterations that can be a risk factor for temporomandibular joint disorder (TMD) is condylar asymmetry. In order to measure the condylar asymmetry index in panoramic x-rays quantitatively, two methods have been proposed: those of Habets and Kjellberg. The aim of this study was to determine whether the x-ray method of measuring condylar asymmetries in orthopantomographies presents a minor tendency to error due to slight displacements of the head in the horizontal plane. 30 patients between 18 and 25 years of age were assessed. Each of them underwent three panoramic x-rays in three different positions: orthoradial, and at 5 degrees and 10 degrees horizontal angles. Then the Habets and Kjellberg measurements were taken. Habets' technique did not show any statistically significant differences in the x-rays at 5 degrees and 10 degrees horizontal angles compared to the 0 degrees angle. However, Kjellberg's technique showed statistically significant differences only at the 10 degrees angle compared to the 0 degrees angle. The 10 degrees changes produced linear and ratio variations, but the indices did not vary. It was concluded that both methods provide acceptable clinical information within the limitations of these techniques to obtain data on condylar symmetries or asymmetries of the mandibular body or ramus."],["dc.identifier.isi","000299647600005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24432"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Soc Chilena Anatomia"],["dc.relation.issn","0717-9502"],["dc.title","Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","11208"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE"],["dc.bibliographiccitation.lastpage","11213"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Flores, Tania"],["dc.contributor.author","Navarro, Pablo"],["dc.contributor.author","Borie, Eduardo"],["dc.contributor.author","Curiqueo, Aldo"],["dc.contributor.author","Salamanca, Carlos"],["dc.date.accessioned","2018-11-07T10:02:55Z"],["dc.date.available","2018-11-07T10:02:55Z"],["dc.date.issued","2015"],["dc.description.abstract","Under normal conditions, the oral cavity presents a perfect system of equilibrium between teeth, soft tissues and tongue. The equilibrium of soft tissues forms a closed capsular matrix, generating differences with the atmospheric environment. This difference is known as intraoral pressure. Negative intraoral pressure is fundamental to the stabilization of the soft palate and tongue, reducing neuromuscular activity for the permeability of the respiratory tract. Thus, the aim of this study was to describe the variations of intraoral pressure of the sub-palatal space ( SPS) under different physiological conditions and biofunctional phases. A case series was conducted with 20 individuals aged between 18 and 25. The intraoral pressures were measured through a system of cannulae connected to a digital pressure meter in the SPS during seven biofunctional phases. Descriptive statistics were used based on the mean and standard deviation. The data recorded pressure variations under physiological conditions, reaching 65 mbar as the intraoral peak in forced inspiration. In the swallowing phase, peaks reached -91.9 mbar. No pressure variations were recorded in terms of atmospheric changes with the mouth open and semi-open. The data obtained during the swallowing and forced inspiration phases indicated forced lingual activity. In the swallowing phase, the adequate position of the tongue creates negative intraoral pressure, which represents a fundamental mechanism for the physical stabilization of the soft palate. This information could contribute to subsequent research into the treatment of primary roncopathies."],["dc.description.sponsorship","DIUFRO project of Universidad de La Frontera, Chile [DI12-0051]"],["dc.identifier.isi","000361557500112"],["dc.identifier.pmid","26379925"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38333"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E-century Publishing Corp"],["dc.relation.issn","1940-5901"],["dc.title","Description of intraoral pressures on sub-palatal space in young adult patients with normal occlusion"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","364"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","International Journal of Morphology"],["dc.bibliographiccitation.lastpage","368"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Decco, Oscar A."],["dc.contributor.author","Prieto, Ruth"],["dc.contributor.author","Wilckens, Mario"],["dc.contributor.author","Borie, Eduardo"],["dc.date.accessioned","2018-11-07T09:42:46Z"],["dc.date.available","2018-11-07T09:42:46Z"],["dc.date.issued","2014"],["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 describes the use of occlusive barriers and cortical particulate allograft in transverse maxillary defects. This surgical approach was performed in five patients (4 females and 1 male, aged 20 to 37 years). Clinical results show that sufficient hard tissue was formed to allow implant born rehabilitation in the former insufficient bone sites. Histological evaluation revealed small amounts of newly formed bone with a predominance of collagen fibrous tissue and mature bone with very little cellular elements. Depending on the original site situation, the minimally invasive approach with occlusive barrier and cortical particulate allograft may be applied. We observed a mean of 2.3, 2.7 and 2.9 mm in bone gain for ridge, middle and apical area, respectively."],["dc.identifier.isi","000336654600057"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34032"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Soc Chilena Anatomia"],["dc.relation.issn","0717-9367"],["dc.relation.issn","0717-9502"],["dc.title","Bone Augmentation With Occlusive Barriers and Cortical Particulate Allograft in Transverse Maxillary Defects: 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","E1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Oral and Maxillofacial Surgery"],["dc.bibliographiccitation.lastpage","E6"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Beltran, Victor"],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T09:15:50Z"],["dc.date.available","2018-11-07T09:15:50Z"],["dc.date.issued","2012"],["dc.identifier.doi","10.1016/j.joms.2011.09.011"],["dc.identifier.isi","000299214500001"],["dc.identifier.pmid","22182657"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27795"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","W B Saunders Co-elsevier Inc"],["dc.relation.issn","1531-5053"],["dc.relation.issn","0278-2391"],["dc.title","Endoscopic Visualization of Anatomic Structures as a Support Tool in Oral Surgery and Implantology"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1607"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE"],["dc.bibliographiccitation.lastpage","1610"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Fuentes, Ramon"],["dc.contributor.author","Beltran, Victor"],["dc.date.accessioned","2018-11-07T09:45:53Z"],["dc.date.available","2018-11-07T09:45:53Z"],["dc.date.issued","2014"],["dc.description.abstract","Sinus floor augmentation in case of severe pneumatization is a challenge for surgical management. We present a low invasive endoscopically assisted technique facilitating the stabilization of augmentation material in the subantral space. The technique consists of (1) trepanation of the lateral sinus wall with tunnelling of the sinus membrane and creation of the subantral space, (2) subantroscopically assisted insertion of a mini screw, (3) precise stepwise placement of in situ hardening graft material with antroscopic control. Based on a case example, details of the procedure are presented. The technique provides a minimally invasive treatment for difficult and instable augmentation sites."],["dc.identifier.isi","000341255900017"],["dc.identifier.pmid","25035787"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34734"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E-century Publishing Corp"],["dc.relation.issn","1940-5901"],["dc.title","Sinus floor augmentation using miniscrew and in situ hardening biomaterial: method and case report"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]