Publications by authors named "Ihde Stefan"

Dental implant treatment and immediate loading protocol in the front maxillae provides severe esthetical difficulties, for example in cases where the transition zone of the patients' teeth and the gums is visible during habitual movements of the upper lip or when the patient presents excessive gingival display. In this case report, it is shown in detail how to overcome the esthetic problems in a straightforward manner in such clinical situations. The article also discusses in which financial environments treatments on teeth are endlessly continued and under which conditions patients manage to get (and prefer) an early switch to implant borne teeth.

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This Consensus-Document is issued by the International Implant Foundation (Munich/Germany). It describes distinct methods of placement of cortico-basal oral implants in different areas of the jaw bone and the maxillo-facial skeleton. The implants utilize the method of "osseofixation" instead of "osseointegration" for achieving primary, functional stability, hence they work according to the (AO-) principles of fracture treatment.

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The technology of the Strategic Implant has expanded the indications for tooth and bone removal. This case report shows what kind of results are possible and how much the appearance of a patient can be changed within a few days if both teeth and bone are removed. The treatment option explained here could be considered by patients with a gummy smile.

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Background: Implant protrusion into the nasal and maxillary sinuses presents a challenge in cases of severely resorbed maxillae.

Aim: The aim of this study was to evaluate the clinical and radiographic effects of BECES implant penetration depth into the nasal and maxillary sinuses.

Setting And Design: This was an observational study conducted in a tertiary institution.

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The technology of the Strategic Implant facilitates dental implant treatment almost regardless of the available bone. This explains its increasing use to resolve problems with the dentition of the middle-aged patient in a radical manner, simply by extracting the residual dentition and placing implants. While a radical change in the implant treatment paradigm has taken place in some countries, in other countries, dentists try hard to keep their work area free of implants or to deliver them only as a last resort.

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While materials for the restoration of teeth and new (digital) technologies develop fast, the choices of the treatment provider and the patients get wider. Choosing an adequate and long-lasting treatment is a question of "doing the right thing," and only after that, the dentist has to think about the question how to do the work properly. This case report explains and illustrates a case, where an adequate treatment by means of conventional dentistry would not have been possible on one hand, and where treatment with the technology of the Strategic Implant provided a perfect result within only a few days.

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This consensus document describes treatment modalities with corticobasal implants in the field of oral and maxillofacial implantology.

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This article explains, based on a long-term observation, the hard-tissue reaction to different endosseous implant surfaces and different implant designs. A patient who had received a full maxillary implant-supported restoration on basal implants and compression screws followed by immediate loading presented no clinical problems at the 20-year follow-up, but the X-ray examination revealed different hard tissue reactions to different implant types. No bone loss was found around lateral basal implants with fully polished vertical aspects, whereas crater-like bone loss was observed around the vertical shafts of implants with a roughened surface and macromechanical retentions.

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The aim of this article was to present the treatment method applied to a patient who suffered from a multiple fracture of the right maxilla, as a result of an accident that happened to him at an early age. The main consequence of this injury was an inhibited growth of the maxillary bone segment due to the lack of functional stimulus. The treatment consisted of four phases: the removal of all the teeth in the upper right maxilla, the immediate restoration with bicortical implants, the immediate prosthetic rehabilitation, and closing the oroantral communication.

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This article analyses published prior article regarding the questions: is the study setup correct (true) and if comparable cases are evaluated for the compared methods. Futhermore the content, the pictures, the tables, the graphs and the pictures legends of the article and statistics are analysed for truth, relevance and applicability. We investigate furthermore if this article addresses all relevant questions regarding bias, the study groups, the evaluation of the outcomes and the evaluation of patient parameters such as burden of the treatment.

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The aim of this article was to present the clinical application of a new, smooth surfaced one-piece bicortical screw implant with immediate loading protocol. An 18-year-old, healthy male patient with a history of total dislocation and replantation of teeth 11 and 21 in early childhood was admitted to the clinic. Teeth 11 and 21 were extracted, and two long one-piece implants were inserted at extraction sockets in one surgical session under local anesthesia.

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Implant stability is a principal precondition for the success of implant therapy. Extraoral implants (EO) are mainly used for anchoring of maxillofacial epithesis. However, assessment of implant stability is mostly based on principles derived from oral implants.

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The purpose of this study was to present the amount and distribution of pressure, stress, and deformation energy when basal implants in the mandible are restored with a bridge which is loaded at two different stages of bone healing. The model geometry and material properties of the mandible were gained from CT scans of a human mandible. The material model used in this study defined bone as an inhomogeneous, linear elastic isotropic material.

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Objectives: The distinction between a pseudocyst and an intervention demanding cyst or process cannot always be found by 2D radiology. The differential diagnosis of a pseudocyst may become more difficult when adjacent processes are present.

Case: A symptom free 67-years-old man presented with a periapical radiolucency around the mandibular left second molar as well as at the impacted 3rd molar.

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Aim: To report the case of a patient who underwent facial reconstruction with nasal epithesis anchored on basal (disk) implants after ablation of midface squamous cell carcinoma.

Methods: Ablative surgery of the midface region and insertion of 3 basal implants into the glabellar area of the frontal bone, the upper part of the right side of the alveolar crest, and the lateral side of the maxillary bone, which forms the left lateral wall of the nose, respectively, was performed. Implants were placed at the time of the primary surgical attempt.

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Salt impregnation of implant materials.

Oral Surg Oral Med Oral Pathol Oral Radiol Endod

June 2009

Implant infection and peri-implantitis are recurrent and serious complications in implantology. Antibiotic treatment of infected implants in bone is complicated because of limited vascularization of the surrounding tissue on the one hand, and biofilm formation on the implant surface on the other. Therefore, contamination of the implant surface has to be prevented.

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Background: Survival rates for conventional dental implant systems are relatively high in normal healthy bone. However, there are subgroups of patients that are at an increased risk of implant failure. In particular, patients with compromised quantity or quality of bone present a significant challenge to the dental implantologist.

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Aim: Bendable and angulated single-piece implants are used alternatively to screwable abutments in two-piece dental implant designs. Though used frequently, data on the stress distribution within such implants are not available and the question whether the bending contributes to fracture resistance has not been addressed.

Methods: We used the method of finite element to identify von Mises stresses and maximum stresses in bent and non-bent but angulated implants.

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Aims: Bone structure around basal implants shows a dual healing mode: direct contact areas manifest primary osteonal remodeling, in the void osteotomy-induced spaces, the repair begins with woven bone formation. This woven bone is later converted into osteonal bone. The purpose of this study was to develop a model to accurately represent the interface between bone and basal implant throughout the healing process.

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Objectives: The theories of the effects of radiation therapy on craniofacial and dental implants have been challenged by new models. Animal and clinical studies differ on the importance of dose effect and implant location regarding implant survival. Our purpose was to explore the risks of irradiation regarding dose levels, timing of radiation, implant location, and material.

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Objective: The purpose of this study was to develop a model that accurately represents the interface between bone and basal implants throughout the healing process.

Study Design: The model was applied to the biological scenario of changing load distribution in a basal implant system over time. We did this through finite element analysis (FEA, or finite element method [FEM]), using multiple models with changing bone-implant contact definitions, which reflected the dynamic nature of the interface throughout the bony healing process.

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Time analysis of hard and soft bolus processing.

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

December 2007

Objective: Clinical observations and mathematical models show that dental implants are influenced by the magnitude of loading. Therefore, the knowledge of mandible movement during mastication is important to assess occlusal and masticatory force vectors. The purpose of this study was to detect the path of movement of the lower jaw and to distinguish stages of mastication, duration of bolus processing and peak amplitude of mastication.

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Introduction: The role of botulinum toxin as a therapeutic agent for several conditions is expanding. We sought to determine if botulinum toxin is safe and effective in treating patients with cervical dystonia and maxillofacial conditions. Our purpose was to establish a safety and efficacy profile to determine whether or not this treatment may be used prophylactically in patients undergoing dental implant therapy.

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Dental implants for insertion from the lateral aspects of the jaw bone have been described repeatedly, since 1972. Long term results have been reported. Due to their design, BOI-Implants (basal osseointegration) can be installed even in those cases, where the vertical bone supply is reduced.

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