A long-term follow-up study of non-submerged ITI implants in the treatment of totally edentulous jaws. Part I: Ten-year life table analysis of a prospective multicenter study with 1286 implants.

In this prospective multicenter study, non-submerged ITI implants were followed in order to evaluate their long-term prognosis in fully edentulous jaws. A total of 1286 implants were inserted in 233 consecutive patients and, after a healing period of three to six months, the successfully integrated implants were restored with 163 overdentures and 95 fixed full-arch bridges. This prospective study not only calculated the 10-year cumulative survival and success rates for the 1286 implants by life table analysis, but also evaluated the actual survival and success rates for 498 implants after at least five years of functional loading.

The mouth-stomach crossing of Helicobacter pylori.

In order to confirm the mouth-stomach crossing of Helicobacter pylori (H. pylori) we performed a study to isolate the bacterium both from dental plaque and gastric mucosa of 83 subjects. Out of the 83 subjects, 62 were affected by gastroduodenal pathologies usually related to H.

[Leiomyoma of the masseter muscle. Report of a case].

The authors present a clinical case of leiomyoma, localized in the anterior margin of the masticator muscle. The clinical diagnosis was formulated following the histological test on the operating part. It is a case a rare pathology of the oral cavity that isn't commonly suspected.

Oral metastasis of renal cell carcinoma. Report of case and critical evaluation of morphologic features for differential diagnosis.

Two clear cell neoplastic lesions of the oral cavity, the first on the cheek and the second on the mucosa of the upper lip, were identified, in a 44 year old otherwise healthy man, 46 and 51 months after left nephrectomy for renal clear cell carcinoma. Basing on this case, unique for the double and limited metastasis of clear cell carcinoma of the kidney in the oral cavity, we discuss about the morphologic criteria usefull in the differential diagnosis of oral cavity clear cell tumors.

[Diaphanization. Testing method for endodontic technics].

It's a study about the principal clearing techniques, with a selection of materials and phases of execution. The purpose was to obtain transparency of mineralized structure together with preservation of pulpal contents. From this research a technique has been extracted and positively tested, with great results: a) tridimensional control of alterations pointed out in anatomy after canal preparation; b) measurement of pulpal debris size after instrumentation; c) identification of instruments dark zone; d) measurement of the empty-cleansing capacity of root canal system and the defence from eventual self-made errors, as a result of particular operating techniques, whose comparison is accessible by methodology.