A prospective multicenter evaluation of 1,583 3i implants: 1- to 5-year data.

Purpose: The purpose of this prospective multicenter study was to evaluate the efficacy of 3i threaded implants for the treatment of edentulous patients in a 1- to 5-year period. This article reports the total data and global results of 3 threaded designs of 3i implants: self-tapping, ICE, and Osseotite.

Materials And Methods: A total of 1,583 implants (619 ICE, 545 Osseotite, and 419 self-tapping) were placed between 1995 and 1999 in 528 patients at 13 European clinical centers.

Conditions for success in guided bone regeneration: retrospective study on 376 implant sites.

Background: Used alone or in association with bone, guided bone regeneration is a clinically accepted method to increase the volume of bone during implant placement. Concerns about appropriate surgical techniques and the predictability of the results questions still exist. The aim of this study was to assess the conditions for success.

Clinical evaluation of guided bone regeneration at exposed parts of Brånemark dental implants with and without bone allograft.

This investigation evaluated guided bone regeneration with a polytetrafluoroethylene barrier membrane at exposed parts of Brånemark dental implants with and without concomitant use of decalcified freeze-dried bone allograft. Density of the regenerated tissue was also determined using a No. 23 probe at a pressure of 25 g and was graded from 1 to 5.

[Periodontal reconstruction using the guided tissue regeneration technique. Apropos of a case].

Different surgical techniques have been used to treat periodontal osseous defects. Periodontists were very full of hope with osseous grafts but the results were disappointing or unpredictable. A best knowledge of the biologics determinants of periodontal healing has lead to the concept of guided regeneration.

Repair potential in localized juvenile periodontitis. A case in point.

An aggressive form of localized juvenile periodontitis (LJP) in a 12-year old West African female is reported. The case was treated with scaling, root planing, debridement, and tetracycline therapy, which resulted in complete resolution of the disease, including elimination of periodontal inflammation, regeneration of lost periodontal structures, and spontaneous repositioning of teeth that had pathologically migrated. A hopelessly involved mandibular right first molar was successfully replaced by an incompletely developed maxillary third molar tooth bud whose roots and pulp structure continued to develop after autotransplantation.

[Function of polynuclear neutrophils in patients with juvenile periodontitis and rapidly progressing periodontitis].

It is generally assumed that early onset forms of periodontal disease (including Juvenile and Rapidly Progressive Periodontitis) are associated with a defect in neutrophil behaviour. We have investigated neutrophil functions in patients with Juvenile (J.P.

[Guided tissue regeneration: clinical and microscopic study].

A case of furcation involvement of a maxillary molar is reported. The treatment consisted in applying the concept of Controlled Tissue Regeneration using a Goretex membrane. After removal of the membrane the result is satisfactory.

[Histological study of periodontal healing of surgically displaced human teeth].

Mandibular incisors had to be extracted on a 52 years old patient. The aim of this investigation was to study, the periodontal healing of teeth surgically displaced after bone resections (alveolar, buccal and apical). 3 years later, the teeth were extracted and treated for microscopic observation.

[Cellular competition and healing].

Different therapeutic solutions have been tried to obtain a new attachment. Several animal experiments have studied cellular colonization of radicular surfaces exposed to the disease then planed. Only the cells from the periodontal ligament seem to be able to form a new attachment.

[Current therapy of gingival recession].

The muco-gingival surgery represents one of the facet of periodontal surgery. The gingival recessions, characterized by a total attachmentless uncovering the root surface, become an esthetic and painful problem for our patients. The recessions can be treated by different surgical procedures.