RESUMEN
The burning problem that all the implantologists are confronted today is the complications and failures occurring with the treatment of osseointegrated implants. To further optimize the treatment outcome, etiologies and factors associated with implant failures should be elucidated. Conceivably such knowledge is needed for developing adequate treatment and prevention strategies. Hence, this paper is intended to provide an insight regarding various aspects of failures that affect dental implants.
Asunto(s)
Implantación Dental Endoósea/efectos adversos , Implantes Dentales , Fracaso de la Restauración Dental/clasificación , Restauración Dental Permanente , Periimplantitis/prevención & control , Implantación Dental Endoósea/métodos , Humanos , OseointegraciónRESUMEN
OBJECTIVES: The dual-arch impression technique is convenient in that it makes the required maxillary and mandibular impressions, as well as the inter-occlusal record in one procedure. The accuracy of inter-abutment distance in dies fabricated from dual-arch impression technique remains in question because there is little information available in the literature. MATERIALS AND METHODS: This study was conducted to evaluate the accuracy of inter-abutment distance in dies obtained from full arch dual-arch trays with those obtained from full arch stock metal trays. RESULTS AND CONCLUSION: The metal dual-arch trays showed better accuracy followed by the plastic dual-arch and stock dentulous trays, respectively, though statistically insignificant. The pouring sequence did not have any effect on the inter-abutment distance statistically, though pouring the non-working side of the dual-arch impression first showed better accuracy.
Asunto(s)
Pilares Dentales , Técnica de Impresión Dental/instrumentación , Modelos Dentales , Aleaciones , Diente Premolar , Pilares Dentales/normas , Articuladores Dentales , Materiales de Impresión Dental/química , Técnica de Impresión Dental/normas , Oclusión Dental Céntrica , Diseño de Dentadura/normas , Dentadura Parcial Fija , Diseño de Equipo , Humanos , Registro de la Relación Maxilomandibular/instrumentación , Registro de la Relación Maxilomandibular/métodos , Modelos Dentales/normas , Diente Molar , Plásticos , Polivinilos/química , Siloxanos/química , Propiedades de SuperficieRESUMEN
Harmonious occlusion is a critical requirement for successful oral rehabilitation. Conventional techniques of construction have been unsuccessful in producing a prosthesis that can be inserted without intraoral occlusal adjustment. This article discusses the use of functionally generated path technique with double casting to fabricate fixed partial dentures. The merits of this approach and the technique involved are discussed in detail.
Asunto(s)
Técnica de Colado Dental , Oclusión Dental , Diseño de Dentadura , Dentadura Parcial Fija , Adulto , Articuladores Dentales , Oclusión Dental Céntrica , Humanos , Registro de la Relación Maxilomandibular/instrumentación , Registro de la Relación Maxilomandibular/métodos , Masculino , Ajuste Oclusal , Propiedades de SuperficieRESUMEN
Vascular dementia (VaD) is heterogeneous in its clinical, imaging, and etiological characteristics. Although VaD is common in India, its pattern is not completely known. In a hospital-based cohort, we aimed to characterize VaD by its subtypes and study patterns of risk factors and clinical, and neuropsychological profiles. Vascular mechanisms, known to have racial and genetic variations were identified. NINDS-AIREN criteria were used to diagnose VaD. Patients were subtyped into subcortical, cortical, cortical-subcortical, and strategic infarct dementia. Vascular mechanisms were detected by vascular imaging, cardiac evaluation, and laboratory tests. In the 42 consecutive patients with VaD, subcortical dementia was the most common type (52.4%), followed by cortical-subcortical (26.2%), strategic infarcts in (14.3%), and cortical dementia (7.1%). Stroke (81%), hypertension (71.4%), and diabetes (35.7%) were important risk factors. Small artery disease was the underlying vascular mechanism in 42.9%; intracranial large artery disease, in 16.7%; extracranial disease, in 2.3%; cardioembolism, in 2.3%; multiple mechanisms, in 19%; and unknown, in 16.7%. Subtypes were similar in risk factor profile and neuropsychological features but differed in clinical characteristics and vascular mechanisms. Gait disorder (59.1% vs. 0%) and urinary symptoms (77.3% vs. 16.7%) were more common in subcortical dementia than in strategic infarct dementia (P < .05). Small artery disease was most common in subcortical dementia (72.7%). Intracranial large artery disease was associated with all subtypes. The pattern of VaD demonstrated in our study is a reflection of mechanisms of cerebrovascular disease in India. Outcome depends on underlying mechanisms and thus is likely to differ from that in other ethnic populations.