Thèses sur le sujet « Mascellari »
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MONGUZZI, RICCARDO. « Il trattamento delle osteonecrosi dei mascellari da bifosfonati ». Doctoral thesis, Università Milano-Bicocca, 2008. http://hdl.handle.net/10281/20318.
Texte intégralLizio, Giuseppe <1972>. « Efficacia delle griglie in titanio con osso particolato nella ricostruzione dei difetti alveolari tridimensionali dei mascellari ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6457/1/tesi_Phd.pdf.
Texte intégralThe thesis reports about the effectiveness of the titanium mesh technique with particulate graft in the reconstruction of three-dimensional alveolar defects for implant borne prosthetic rehabilitation. The first study evaluated the technique in terms of complications and implants and prosthetic results. 24 patients with varied morphological defects, treated with 34 titanium meshes and particulate bone and rehabilitated at least 8-9 months thereafter were included. Four of 34 meshes in three patients had to be removed before implant placement (11.76% total failure); 20 of 34 meshes were exposed due to soft tissue dehiscence (58.82% of complications): four (11.77%) prematurely (within 4-6 weeks) and 16 (47.05%) delayed (after 4-6 weeks), with no compromise in implant placement or prosthetic plan. After a mean follow-up of 20 (3-48) months of prosthetic loading, none of the 88 implants was lost during follow-up (100% implant survival) and 15 implants demonstrated increased bone loss, yielding a cumulative implant success rate of 82.9%. The second study was focused on the volumetric bone reconstruction obtained and its correlation with the extent and timing of mesh exposure and amount of reconstruction planned. 12 patients (mean age 49.1 years) with 15 alveolar defects, treated with Ti-mesh and particulate grafts were considered. For each site, computed tomography (CT) images were analyzed using software designed to measure 3D volumes: the bone volume lacking (LBV) was calculated by subtracting the reconstructed bone volume (RBV) at re-opening from the planned bone volume (PBV) to be created at the time of reconstruction. LBV was significantly positively correlated with the area of mesh exposed, with a 16.3% LBV for every cm2 of mesh exposed; there were positive correlations between LBV and early exposure and the PBV.
Lizio, Giuseppe <1972>. « Efficacia delle griglie in titanio con osso particolato nella ricostruzione dei difetti alveolari tridimensionali dei mascellari ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6457/.
Texte intégralThe thesis reports about the effectiveness of the titanium mesh technique with particulate graft in the reconstruction of three-dimensional alveolar defects for implant borne prosthetic rehabilitation. The first study evaluated the technique in terms of complications and implants and prosthetic results. 24 patients with varied morphological defects, treated with 34 titanium meshes and particulate bone and rehabilitated at least 8-9 months thereafter were included. Four of 34 meshes in three patients had to be removed before implant placement (11.76% total failure); 20 of 34 meshes were exposed due to soft tissue dehiscence (58.82% of complications): four (11.77%) prematurely (within 4-6 weeks) and 16 (47.05%) delayed (after 4-6 weeks), with no compromise in implant placement or prosthetic plan. After a mean follow-up of 20 (3-48) months of prosthetic loading, none of the 88 implants was lost during follow-up (100% implant survival) and 15 implants demonstrated increased bone loss, yielding a cumulative implant success rate of 82.9%. The second study was focused on the volumetric bone reconstruction obtained and its correlation with the extent and timing of mesh exposure and amount of reconstruction planned. 12 patients (mean age 49.1 years) with 15 alveolar defects, treated with Ti-mesh and particulate grafts were considered. For each site, computed tomography (CT) images were analyzed using software designed to measure 3D volumes: the bone volume lacking (LBV) was calculated by subtracting the reconstructed bone volume (RBV) at re-opening from the planned bone volume (PBV) to be created at the time of reconstruction. LBV was significantly positively correlated with the area of mesh exposed, with a 16.3% LBV for every cm2 of mesh exposed; there were positive correlations between LBV and early exposure and the PBV.
PEPE, GIOVANNI. « Implementazione dei protocolli di prevenzione primaria e secondaria dell'osteonecrosi dei mascellari da bifosfonati somministrati per via endovenosa in pazienti oncologici ». Doctoral thesis, Università di Foggia, 2016. http://hdl.handle.net/11369/338933.
Texte intégralRicci, Emanuele <1981>. « Studio della superficie degli impianti dentali in titanio : La nanotecnologia nella valutazione delle nuove superfici implantari in rapporto all'osteointegrazione dei mascellari ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6877/1/ricci_emanuele_tesi.pdf.
Texte intégralThis paper starts from the description of the processes of the maxillary bone remodeling due to the loss of teeth and the subsequent rehabilitation by osseointegrated dental implants. We are deepening the complex features of osseointegration of titanium implant surfaces at both micro and macroscopic aspects. In fact in implantology the titanium appears to be the material most widely used because of its excellent biocompatibility and resistance. Subsequently we will analyze the implant surface treatments for today's most popular, worked mostly at the microscopic level and then will compare a treated traditionally system with an innovative surface treated at the nanometer level. The comparison will take place in vivo, by comparing the results obtained clinically and radiographically between the two implant systems, used to restore the masticatory function in patients enrolled.
Ricci, Emanuele <1981>. « Studio della superficie degli impianti dentali in titanio : La nanotecnologia nella valutazione delle nuove superfici implantari in rapporto all'osteointegrazione dei mascellari ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6877/.
Texte intégralThis paper starts from the description of the processes of the maxillary bone remodeling due to the loss of teeth and the subsequent rehabilitation by osseointegrated dental implants. We are deepening the complex features of osseointegration of titanium implant surfaces at both micro and macroscopic aspects. In fact in implantology the titanium appears to be the material most widely used because of its excellent biocompatibility and resistance. Subsequently we will analyze the implant surface treatments for today's most popular, worked mostly at the microscopic level and then will compare a treated traditionally system with an innovative surface treated at the nanometer level. The comparison will take place in vivo, by comparing the results obtained clinically and radiographically between the two implant systems, used to restore the masticatory function in patients enrolled.
Babini, Federico. « Progettazione e sviluppo di un'applicazione di realtà aumentata su HoloLens per la valutazione di pazienti affetti da alterazioni mascellari o dell'articolazione temporo-mandibolare ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Trouver le texte intégralCLEMENTINI, MARCO. « Rigenerazione e preservazione ossea a fini implanto-protesici ». Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2009. http://hdl.handle.net/2108/208675.
Texte intégralLanteri, V. « CAMBIAMENTI TRIDIMENSIONALI DEL MASCELLARE SUPERIOREDOPO ESPANSIONE CON LEAF EXPANDER® IN UN CAMPIONEDI PAZIENTI IN ETA¿ EVOLUTIVA.VALUTAZIONE MEDIANTE SOVRAPPOSIZIONE DI MODELLI DIGITALI E DI CTBC ». Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/473542.
Texte intégralAim of the researche: The purpose of this study was to evaluate and compare the dental and bone effects of slow maxillary expansion, with low forces and hight movement control, in a sample of young patients with unilateral transversal maxillary deficiency, with mandibular shift. Materials and method: have been included in the study 10 patients (n° 3 male, n° 7 female) with an average age of 7.5 yrs +/- 7, treated with a slow maxillary expansion by Leaf Expander appliance . - Pilot Study I: for all ten patients, the digital models have been made at the beginning of the therapy (T1), at the end of expansion (T2). Five parameters have been measured with the cast analysis: 1) the distance between the first upper permanent molars 2) the distance between the upper second deciduous molars 3) the distance between the upper canine cusps 4) the distance between the lowers molars 5) the distance of the lower canine cusps. - Pilot Study II: for only 5 patients, with loss of space for upper cusps, a cone beam computed tomography (CBCT) have been performed at the beginning of the therapy (T1) and after expansion (L.E. remotion) (T2). Misurations and superimpositions have been performed to evaluate the three parameters, most relevant on basis of literature: 1) nasal width 2) basal bone 3) intermolar diameter at II deciduous molars Results: In all the patients the complete correction of posterior crossbite has been achieved in 4 monts, on average. Significant increases in the dental and skeletal transversal diameters were obtained with slow maxillary expansion. Increases were also obtained about anterior mandibular arch (+ 1mm). Conclusions: the Pilot Studys performed confirm the soundness of Leaf Expander appliance in the transversal deficiency correction with a both dental-alveolar and skelectal action in the treatment of young patients.
FLORIANI, FEDERICO. « Valutazione radiografica del rimodellamento osseo nei rialzi di seno mascellare con innesto di osso autologo ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2015. http://hdl.handle.net/10281/88405.
Texte intégralDI, LEO ROBERTO ANGELO. « Valutazione radiografica del rimodellamento osseo nei rialzi di seno mascellare con innesto di osso autologo ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2015. http://hdl.handle.net/10281/88408.
Texte intégralNardi, Diego <1982>. « Realizzazione di protesi immediate di lunga durata nei pazienti con atrofia ossea del mascellare superiore tramite saldatura intra-orale a resistenza elettrica ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amsdottorato.unibo.it/8368/1/Tesi%20def.pdf.
Texte intégralThe electric resistance welding approach can be used to create an immediate metal-reinforced provisional prosthesis in cases of severe maxillary resection of soft and hard tissues and in severely atrophic cases. The aim of the research was to determine whether the prosthesis made using the electric resistance approach could be improved as to achieve the status of final restorations. The research campaign comprised of the following in-vitro studies: a microstructural characterization and hardness properties of electric resistance welding titanium joints, a fatigue test of titanium-bar joints made with the laser and the electric resistance welding techniques, a pull-out retention test of conical welding caps and a cytotoxicity test of the titanium joints made using the electric resistance welding technique. Within its limitations, this study campaign demonstrated the following: 1)the electric resistance welding did not induce appreciable modifications in the geometry of the abutments; 2)the temperature increase was only limited to few hundreds of microns from the joint, while it was negligible in the rest of the material, 3)the heat generated during welding process caused no detachment of any molten metal drop; 4)the joint made using the electric resistance welding technique was able to withstand fatigue forces are equal or superior to the standard values used as reference, ranging between 120 N and 140 N for 5*106 cycles; 5)the welding caps provide a reliable connection between the abutment and a fixed prosthesis without the use of any cement; 6)the welding procedure did not jeopardize the biocompatibility of commercially pure grade 2. The prosthesis made using the electric resistance welding approach, despite the intrinsic difference with titanium milled or gold-alloy fused restorations, could be planned as a final restoration in a patient affected by severe atrophy of the maxilla. A clinical study is needed to confirm this statement.
Pieri, Francesco <1976>. « Riabilitazione del mascellare posteriore atrofico mediante impianti corti (6-8 mm) o rialzo di seno con contestuale inserimento di impianti di lunghezza standard : studio retrospettivo con follow up a 3 anni ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6568/1/TESI_DOTTORATO.pdf.
Texte intégralBackground: Although the recent literature suggested that short implants may be a preferable alternative to various bone augmentation procedures in posterior atrophic areas because the treatment is simpler, and associated with less morbidity, limited data have yet been published comparing these two treatment approaches with an observation period longer than 1 year. Purpose: The aim of this retrospective cohort study was to evaluate whether short implants (6 and 8-mm-long) (short group) could be a suitable alternative to standard-length implants (≥11 mm) placed simultaneously with a sinus augmentation (sinus group) for the treatment of atrophic posterior maxillae. Materials and Methods: In total, 101 partially dentate patients were enrolled in the study: 48 in the short group and 53 in the sinus group. One to three implants were placed in each patient and submerged for 4-6 months. Outcome measures were implant failures, complications, soft tissue parameters, and marginal bone levels. Patients were followed for an observation period of at least 3 years from implant placement. Results: The mean observation period was 43.47 ± 6.1 months for short group and 47.03 ± 7.46 months for sinus group. Two of 101 short implants and six of 108 test implants failed. At final follow-up, mean marginal bone loss was 0.47 ± 0.48 mm in the short group versus 0.64 ± 0.58 mm in the sinus group. No significant difference was observed between groups at patient level in terms of implant failures, prosthetic complications, soft-tissue parameters, or marginal bone loss. However, the sinus procedure led to more surgical complications compared with the short implant procedure. Conclusions: Both techniques showed similar clinical and radiographic outcomes, but the short implants provided advantages in terms of reduced number of surgical complications.
Pieri, Francesco <1976>. « Riabilitazione del mascellare posteriore atrofico mediante impianti corti (6-8 mm) o rialzo di seno con contestuale inserimento di impianti di lunghezza standard : studio retrospettivo con follow up a 3 anni ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6568/.
Texte intégralBackground: Although the recent literature suggested that short implants may be a preferable alternative to various bone augmentation procedures in posterior atrophic areas because the treatment is simpler, and associated with less morbidity, limited data have yet been published comparing these two treatment approaches with an observation period longer than 1 year. Purpose: The aim of this retrospective cohort study was to evaluate whether short implants (6 and 8-mm-long) (short group) could be a suitable alternative to standard-length implants (≥11 mm) placed simultaneously with a sinus augmentation (sinus group) for the treatment of atrophic posterior maxillae. Materials and Methods: In total, 101 partially dentate patients were enrolled in the study: 48 in the short group and 53 in the sinus group. One to three implants were placed in each patient and submerged for 4-6 months. Outcome measures were implant failures, complications, soft tissue parameters, and marginal bone levels. Patients were followed for an observation period of at least 3 years from implant placement. Results: The mean observation period was 43.47 ± 6.1 months for short group and 47.03 ± 7.46 months for sinus group. Two of 101 short implants and six of 108 test implants failed. At final follow-up, mean marginal bone loss was 0.47 ± 0.48 mm in the short group versus 0.64 ± 0.58 mm in the sinus group. No significant difference was observed between groups at patient level in terms of implant failures, prosthetic complications, soft-tissue parameters, or marginal bone loss. However, the sinus procedure led to more surgical complications compared with the short implant procedure. Conclusions: Both techniques showed similar clinical and radiographic outcomes, but the short implants provided advantages in terms of reduced number of surgical complications.
GANGUZZA, Francesca. « Aspetti radiologici nell'osteonecrosi dei mascellari da bifosfonati e proposta di una classificazione radiologica in funzione dell'evoluzione clinica ». Doctoral thesis, 2011. http://hdl.handle.net/10447/105205.
Texte intégralNieri, Michele. « Comparazione di due tipi di vite da espansione del mascellare superiore. Studio clinico randomizzato multicentrico ». Doctoral thesis, 2020. http://hdl.handle.net/2158/1190521.
Texte intégralSicilia, Marco. « Correção da discrepância transversal do maxilar superior com expansão rápida ». Master's thesis, 2019. http://hdl.handle.net/10284/8347.
Texte intégralTransverse maxillary deficiency is a very frequent component of malocclusions, both dental and skeletal, usually accompanied by uni or bilateral posterior crossbite. In these clinical conditions, the therapeutic approach of choice is palatal expansion, a technique that has gained a leading role in modern orthodontics as a safe, predictable and effective method to correct transverse maxillary deficits in a wide range of clinical conditions. This study aims to study the effects of the use of the rapid palatal expander on the anomalies caused by the transverse maxillary discrepancy.
Uys, Carli. « Mascelli's functional analysis of camera angles versus viewers' interpretations of unconventional camera angles in Avatar and The English Patient / Carli Uys ». Thesis, 2014. http://hdl.handle.net/10394/12053.
Texte intégralMA (Communication Studies), North-West University, Potchefstroom Campus, 2014
LO, GIUDICE ROBERTO. « L’uso degli scaffold nella rigenerazione dei difetti ossei : sviluppo dei sistemi di customizzazione nelle tecniche sottrattive ». Doctoral thesis, 2019. http://hdl.handle.net/11570/3146798.
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