... seleciona. para imprimir. Fotocópia. Araujo, Vera Cavalcanti de. experimental, Documentos rel... more ... seleciona. para imprimir. Fotocópia. Araujo, Vera Cavalcanti de. experimental, Documentos relacionados. Id: 391693. Autor: Silva, Mário James dos Anjos da; Carvalhosa, Artur Aburad de; Giovanini, Allan Fernando; Mesquita, Ricardo Alves; Araújo, Vera Cavalcanti de. ...
The objective of the present work was to determine some force parameters for removal of an abutme... more The objective of the present work was to determine some force parameters for removal of an abutment from a dental implant in a frictional system (locking taper, 1.23 degrees). Ten implants of the same length (11 mm) and different diameters were selected, along with 10 straight abutments (13 mm length) with different diameters. Abutments were attached to implants without application of force. Fixation of the implant-abutment mount (IA) (repeated 1-5 times) was performed through the impact of a body weight (compression force, tapping) left from a known height. After each group of tappings, IA mounts were coupled with a tensile strength tester. The lowest removal value was found after the first tapping of mount #2 (83 N, implant diameter 3.3 mm/4.5 mm abutment diameter), and the highest removal value happened with mount #8 after the fifth tapping (420 N, 5.0 mm/5.5 mm). The force to remove IA mounts increased with the number of tappings and with the increase in abutment mass. Three activations (tappings) of the abutment were considered necessary to yield optimal stability, demonstrated by the large increase in removal force.
The aim of this study has fundamental importance for the factbelonging to the Public Health area ... more The aim of this study has fundamental importance for the factbelonging to the Public Health area as well as Oral Pathology, whoseknowledge favors the prevention, diagnosis, prognosis and a correcttherapeutic to be instituted for each case. A retrospective study of1963 oral and maxillofacial lesions diagnosed by the HistopathologyLaboratory of the Scholl of Dentistry – UnicenP was carried outover a 3-year period, with an analysis of prevalence of these lesions,correlating them to age and sex, through a study of the respectivelauds of histopathologic diagnosis. From the results, 82 differentdiagnoses were observed. The epidemiologic profile of these patientswas characterized by female (65,82 %), with a greater frequency onthe 5th decade of life (24%), average of 44,2 year-old age. Dataevidenced Inflammatory Fibrous Hyperplasia the most prevalentlesion (30,6%), followed by Fibroma (21,29%), Radicular Cyst (5,2%)and Mucocele (5,04%).
Introduction:Today, Teflon is used for many biological applications in medicine and dentistry. In... more Introduction:Today, Teflon is used for many biological applications in medicine and dentistry. In dentistry,it is used especially as a barrier,in the guided tissue regeneration (GTR) and guided bone regeneration(GBR)techniques, presenting different levels of success. Objective:The objective of the present study was to evaluate through histological analysis the use of a Teflon film placed over intra-oral bone defectssurgically created in rats. Material and methods:16 adult male rats(WISTAR) were divided in two groups:group T (test) and C(control.Two experimental monitoring periods were analyzed: one and threeweeks. Bone defects were surgically created in the right mandible, withthe use of a carbide bur (3 mm diameter),anterior to the mentonianregion.In T group, bone defect was covered with a film of Teflon(expanded polytetrafluoroethylene, e-PTFE).In C group, defect wasfilled only with blood clot.After monitoring periods went through,animals were euthanized. Results: Due to the high ...
... seleciona. para imprimir. Fotocópia. Araujo, Vera Cavalcanti de. experimental, Documentos rel... more ... seleciona. para imprimir. Fotocópia. Araujo, Vera Cavalcanti de. experimental, Documentos relacionados. Id: 391693. Autor: Silva, Mário James dos Anjos da; Carvalhosa, Artur Aburad de; Giovanini, Allan Fernando; Mesquita, Ricardo Alves; Araújo, Vera Cavalcanti de. ...
The objective of the present work was to determine some force parameters for removal of an abutme... more The objective of the present work was to determine some force parameters for removal of an abutment from a dental implant in a frictional system (locking taper, 1.23 degrees). Ten implants of the same length (11 mm) and different diameters were selected, along with 10 straight abutments (13 mm length) with different diameters. Abutments were attached to implants without application of force. Fixation of the implant-abutment mount (IA) (repeated 1-5 times) was performed through the impact of a body weight (compression force, tapping) left from a known height. After each group of tappings, IA mounts were coupled with a tensile strength tester. The lowest removal value was found after the first tapping of mount #2 (83 N, implant diameter 3.3 mm/4.5 mm abutment diameter), and the highest removal value happened with mount #8 after the fifth tapping (420 N, 5.0 mm/5.5 mm). The force to remove IA mounts increased with the number of tappings and with the increase in abutment mass. Three activations (tappings) of the abutment were considered necessary to yield optimal stability, demonstrated by the large increase in removal force.
The aim of this study has fundamental importance for the factbelonging to the Public Health area ... more The aim of this study has fundamental importance for the factbelonging to the Public Health area as well as Oral Pathology, whoseknowledge favors the prevention, diagnosis, prognosis and a correcttherapeutic to be instituted for each case. A retrospective study of1963 oral and maxillofacial lesions diagnosed by the HistopathologyLaboratory of the Scholl of Dentistry – UnicenP was carried outover a 3-year period, with an analysis of prevalence of these lesions,correlating them to age and sex, through a study of the respectivelauds of histopathologic diagnosis. From the results, 82 differentdiagnoses were observed. The epidemiologic profile of these patientswas characterized by female (65,82 %), with a greater frequency onthe 5th decade of life (24%), average of 44,2 year-old age. Dataevidenced Inflammatory Fibrous Hyperplasia the most prevalentlesion (30,6%), followed by Fibroma (21,29%), Radicular Cyst (5,2%)and Mucocele (5,04%).
Introduction:Today, Teflon is used for many biological applications in medicine and dentistry. In... more Introduction:Today, Teflon is used for many biological applications in medicine and dentistry. In dentistry,it is used especially as a barrier,in the guided tissue regeneration (GTR) and guided bone regeneration(GBR)techniques, presenting different levels of success. Objective:The objective of the present study was to evaluate through histological analysis the use of a Teflon film placed over intra-oral bone defectssurgically created in rats. Material and methods:16 adult male rats(WISTAR) were divided in two groups:group T (test) and C(control.Two experimental monitoring periods were analyzed: one and threeweeks. Bone defects were surgically created in the right mandible, withthe use of a carbide bur (3 mm diameter),anterior to the mentonianregion.In T group, bone defect was covered with a film of Teflon(expanded polytetrafluoroethylene, e-PTFE).In C group, defect wasfilled only with blood clot.After monitoring periods went through,animals were euthanized. Results: Due to the high ...
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