Use of long implants with distal anchorage in the skull base for treatment of extreme maxillary atrophy : the remote bone anchorage concept

The objectives of this study are to present a new concept of the bone anchorage using long implants in remote bone sites and to discuss four cases treated with this method. Our patients were treated with long implants with a distant anchorage in the skull bone. The planning procedure, the construction of the drill guide, and the surgical protocol are described. In the clinical cases described, all four patients were rehabilitated with the remote bone anchorage concept using long implants anchored in the skull base. Patients were followed for 5 - 12 years and the implants remained present and stable in these time periods. The skull base implant is a new concept of bone anchorage using long implants. It can be a solution for complicated clinical situations (often failed bone reconstructions and implant placements) or an alternative for bone grafting and maxillary augmentation procedures. There is effective implant retention in the skull base, an anatomical area that is often overlooked for implant placement

Avulsie van bovenfrontelementen in het definitieve gebit, schade na reïmplantatie: een paradigmashift.

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Coronectomy of deeply impacted lower third molar : incidence of outcomes and complications after one year follow-up

Objectives: The purpose of present study was to assess the surgical management of impacted third molar with proximity to the inferior alveolar nerve and complications associated with coronectomy in a series of patients undergoing third molar surgery. Material and Methods: The position of the mandibular canal in relation to the mandibular third molar region and mandibular foramen in the front part of the mandible (i.e., third molar in close proximity to the inferior alveolar nerve [IAN] or not) was identified on panoramic radiographs of patients scheduled for third molar extraction. Results: Close proximity to the IAN was observed in 64 patients (35 females, 29 males) with an impacted mandibular third molar. Coronectomy was performed in these patients. The most common complication was tooth migration away from the mandibular canal (n = 14), followed by root exposure (n = 5). Re-operation to remove the root was performed in cases with periapical infection and root exposure. Conclusions: The results indicate that coronectomy can be considered a reasonable and safe treatment alternative for patients who demonstrate elevated risk for injury to the inferior alveolar nerve with removal of the third molars. Coronectomy did not increase the incidence of damage to the inferior alveolar nerve and would be safer than complete extraction in situations in which the root of the mandibular third molar overlaps or is in close proximity to the mandibular canal

Proliferation of epithelial rests of Malassez following auto-transplantation of third molars: a case report

<p>Abstract</p> <p>Introduction</p> <p>Auto-transplantation of third molars is frequently undertaken in order to restore a perfect occlusion and to improve mastication following a substantial loss of molars. However, little is known about the precise role of the periodontal membrane during this procedure. Therefore, we investigated if the epithelial rests of Malassez persist in the periodontal ligament of auto-transplanted teeth and, if so, whether these may show signs of a neuro-epithelial relationship.</p> <p>Case presentation</p> <p>We report a case of a 21-year-old Caucasian woman who underwent an auto-transplantation of two third molars. After two years, renewed progressive caries of the auto-transplanted teeth led to the removal of the auto-transplanted elements. The periodontal ligament was removed and studied with a light and transmission electron microscope.</p> <p>Conclusion</p> <p>In this report we examined the ultrastructure of the periodontal ligament after auto-transplantation in order to see if the periodontal ligament recovers completely from this intervention. We observed fully developed blood vessels and a re-innervation of the epithelial rests of Malassez which were proliferating following auto-transplantation. This proliferation might be critical in the remodelling of the alveolar socket in order to provide a perfect fit for the transplanted tooth. In order to minimalise the damage to the epithelial rests of Malassez, the extraction of the tooth should be as atraumatic as possible in order to provide an optimal conservation of the periodontal ligament which will be beneficial to the healing-process.</p

Bibliographie de l'histoire de Belgique : bibliografie van de geschiedenis van België. 1990

Van Eenoo Romain, Bovesse J., Vrielinck S., Janssen R., Vanthemsche Guy, Geirnaert Ν., Meyers W., François L., Maréchal Griet, Vanhaute E., Art J., Haesenne-Peremans N., Cauchies Jean-Marie, Lis Catharina, Gaus H., Vermeulen U., Triaille-Closset C., Prevenier Walter, Van Derveeghde Denise, Petit R., Hélin Etienne. Bibliographie de l'histoire de Belgique — Bibliografie van de geschiedenis van België. 1990. In: Revue belge de philologie et d'histoire, tome 70, fasc. 2, 1992. Histoire médiévale, moderne et contemporaine — Middeleeuwse, moderne en hedendaagse geschiedenis. pp. 420-546

Bibliographie de l'histoire de Belgique : bibliografie van de geschiedenis van België. 1989

Van Eenoo R., Bovesse J., Hélin Etienne, Petit R., Van Derveeghde Denise, Prevenier Walter, Triaille-Closset C., Vermeulen U., Gaus H., Lis Catharina, Cauchies J. M., Haesenne-Peremans N., Maréchal Griet, François Luc, Meyers W., Geirnaert Ν., Vanthemsche Guy, Janssen R., Vrielinck S., Vanhaute E., Art Jan. Bibliographie de l'Histoire de Belgique — Bibliografie van de Geschiedenis van België. 1989. In: Revue belge de philologie et d'histoire, tome 69, fasc. 2, 1991. Histoire - Geschiedenis. pp. 342-465

Bibliographie de l'histoire de Belgique : bibliografie van de geschiedenis van België. 1988

Van Eenoo Romain, Bovesse J., Hélin Etienne, Petit R., Van Overstraeten D., Prevenier Walter, Triaille-Closset C., Vermeulen U., Gaus H., Lis Catharina, Cauchies J. M., Haesenne-Peremans N., Maréchal Griet, François L., Meyers W., Geirnaert Ν., De Wever B., Vanthemsche Guy, Janssens Edgar, Vrielinck S., Art J. Bibliographie de l'histoire de Belgique — Bibliografie van de geschiedenis van België. 1988. In: Revue belge de philologie et d'histoire, tome 68, fasc. 2, 1990. Histoire - Geschiedenis. pp. 352-463

Zygomatic implant complicated with recurrent oro-antral communication

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Clinical experience with 176 autotransplanted canines

Between 1989-1996 640 patients were treated for impacted canines. Out of this group 120 patients(18.75%) were treated with an autotransplantation of thei canine instead of a surgical orthodontic guided eruption of the canine. The indications were very deep impactions, refusal of orthodontic therapy and unsuccessfull previous attempts of surgical orthodontic eruption of the impacted canine. The toal number of autotransplanted canines followed amounts to 176. Out of these 12 transplanted canines were lost