[Odontogenic kertocysts. Review of a series of cases and long-term clinical control].

Background And Aims: The aim of this retrospective study was to identify and evaluate the clinical characteristics and incidence of recidivation in a series of 40 cases of keratocyst consisting of 31 primary lesions, 7 cases of primary recidivation (17.5%) and 2 cases of secondary recidivation (5%). All the lesions were large sized and were treated using surgery.

[Evaluation of tegumental changes after skeletal repositioning in orthodontic surgery].

One of the main problems of orthognathodontic surgery is to evaluate the effects on soft tissue of bone positioning performed following surgical programming. A method which is of particular interest, easy to perform and reproduce was proposed by Jensen in 1992. It evaluates the correspondence of soft tissues on the basis of surgical programming and allows percentage values of soft tissue movement to be calculated in relation to bone tissue, thus performing a surgical VTO which corresponds as closely as possible to the postoperative result.

[Mandibular cysts treated by decompression].

The authors reports a case of mandibular keratocystis treated using decompressive therapy and subsequent cystectomy after subtotal reduction of the cystic lacuna. The bone regenerative process was probably aided by the young age of the patient.

Rigid fixation with teeth in the line of mandibular fractures.

The treatment results and the incidence of complications were evaluated retrospectively in a group of 68 patients. They all had mandibular fractures with a tooth in the line of fracture and were treated using miniplates for fixation. The follow up ranged from 1 to 6 years (mean 2.

[Brown tumor of the jaws].

Brown tumour is one of the forms in which fibrous-cystic osteitis, which represents the terminal stage of the bone remodelling processes during primary or secondary hyperparathyroidism, is manifested. For years brown tumour was regarded as a typical lesion of primary hyperparathyroidism, but cases of brown tumours in patients with hyperparathyroidism secondary to renal failure were increasingly often reported in the literature. From an epidemiological point of view, the frequency of brown tumours in patients with renal insufficiency is extremely variable, as is the bone site affected.

[Odontogenic keratocysts. A report on cases with long-term histological review and clinical follow-up].

Keratocysts are cysts characterised by the keratinisation of the wall. Keratinisation may be observed in almost all types of cysts found at the level of the maxillary bones. The preferred location is the mandible.

[Osteoma of the maxilla. The report of a case of remarkable dimensions].

The paper reports the case of a remarkably large osteoma of the upper jaw. The clinical appearance and surgical enucleation are described.

[Segmental surgery of the maxilla: the long-term assessment of the dental-periodontal integrity of the osteotomized sites].

Segmentary surgery of the jaws has increased the possibilities of therapeutic orthognathodontic surgery, allowing osteo-dental segments to be moved three-dimensionally to achieve a satisfactory occlusion. One of the potential limits of this method is the possibility of damaging the dental-periodontal structures bordering with the site of osteotomy. The aim of this study was to report the results of a long-term clinical and radiological survey in a group of patients undergoing segmentary surgery, performed without tooth extraction.