1,721,042 research outputs found
Una tecnica minimamente invasiva per il rialzo del seno mascellare tramite accesso transcrestale: un caso clinico.
No full textQuesto articolo descrive la Smart Lift technique, ovvero una tecnica mini-invasiva per il rialzo del seno con accesso attraverso la cresta ossea residua. Tale procedura è basata sull’uso controllato di frese e osteotomi. Il suo razionale è ottenere un rialzo prevedibile del pavimento osseo del seno mascellare sfruttando come innesto dotato di capacità osteoinduttiva l’osso residuo presente in situ e limitando l’incidenza statistica della perforazione accidentale della membrana sinusale e il tasso di morbilità postchirurgica. Gli step chirurgici di tale procedura sono qui illustrati nei dettagli facendo riferimento ad un caso clinico esemplare
NanoTite surface implants stability in the anorganic bovine bone grafted maxillary sinus mesured by resonance frequeny analysis: 3 years report
No full textAim: The primary aim of this study were to: investigate value and possible advantages in terms of survival nanotite surface implants used in critical bone conditions such as the severely atrophic posterior maxilla simultaneously reconstruction with sinus floor elevation technique utilizing nonabsorbable membrane and anorganic bovine bone as only graft material, and examine the reliability of resonance frequency analysis measurements to assess and monitor implant stability also in such cases.
Materials and Methods. Five consecutive patients presenting severely atrophic posterior maxillae were treated with 12 Nanotite surface implants in conjunction with sinus lifting using nonasorbable membrane and Bio-oss as only graft material. Resonance frequency analysis measurements was carried out at implant placement and four months and three years postoperatively.
Results: At 3-year follow up the survival rate of nanotite surface implants was 100%. RFA mean value was 58.75 implant stability quotient at implant placement time and gradually increased during the examination time ending with an average ISQ of 75 at 3 year follow up.
Conclusions: Althoug the present investigation is based on a limited sample, its results support the possible benefits of utilizing nanotite surface implants in case of implant placement and simultaneous reconstruction of the severely atrophic posterior maxilla through sinus elevation technique. Resonance frequence analysis system appears to be a reliable method to assess and monitor implant stability also in case case of severely atrophic posterior maxilla simultaneously grafted with anorganic bovine bone alone
Clinical applications compared in implantology
No full textOn the basis of their own experience and of orientation reported by literature, the authors display how important it is for professional men who practise implantology or who approach it, to have the possibility of knowing several implantologic systems. Indeed, what we want to demonstrate is, that in different situations of edentulous, in relation to the quantity and the quality of the available bones, to the gnotologic situation and to the aesthetic functional result they aim to, corresponds the choice of one or several implantologic systems. In that sense the basic research occupies a role of vital importance, because only through the knowledge of chemical, chemical-physical and biomechanical characteristics it is possible to recognize some essential chemical entities for an implantologic approach. Thus the several diagnostic instrumental means available enable the surgeon to make an exact clinical diagnosis. The TAC, in this case, assumes a determinant role, because, in addition to supplying exact dimensional and qualitative informations, also occupies an important medico-legal aspect. The resolution of some forms of edentulous programmed like that, will subsequently be illustrated. Finally, a control hypothesis is proposed for the rearrangement, of peri-implant bone. On this account, the SPECT (single photon emission computerized tomography), through a semi-quantitative research, could provide some specific indications about the osteotropic implantation activity
REVIEW PAPER Maxillary Sinus Augmentation with Autologous and Heterologous Bone Graft: A Clinical and Radiographic Report of Immediate and Delayed Implant Placement
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