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Biomedical subjects

N P Patil

Publications and source records attributed to N P Patil.

10 recordsLinked to original sources

Prosthetic rehabilitation of a midfacial defect resulting from lethal midline granuloma--a clinical report.

Prosthetic rehabilitation of the midfacial defects has always perplexed maxillofacial prosthodontists. These midfacial defects lead to functional and cosmetic deficiencies. One of the causes of such defects is midline lethal granuloma, which is a destructive granulomatous lesion of uncertain aetiology, involving the nose, paranasal sinuses and the palate. Presented here is a clinical report of a 22-year-old male patient diagnosed to have lethal midline granuloma, who was referred to the Department of Prosthodontics, SDM College of Dental Sciences Dharwad. The patient had a severe midfacial defect involving the nose, the paranasal sinuses, the palate and the soft tissues of the face. Although the lesion was not of the rapidly progressive type at the time of rehabilitation, the non-specific inflammatory process was persisting. The patient was treated with chemotherapy and palliative therapy. The primary objective of the prosthetic rehabilitation was to provide closure of the severe defect to protect the soft tissues from environmental exposure. Secondarily the prosthesis also provided acceptable aesthetics and psychological benefit to the patient.

Adult↗

Bonding acrylic teeth to acrylic resin denture bases: a review.

Partial or complete dentures are more commonly constructed for the elderly group of the population. Teeth debonding from the dentures can be frustrating to the patients as well as the dentist. Research has been carried out and is continuing to study the issue of bonding acrylic teeth to the denture base resin. The present review takes into account the majority of research papers published in the last five decades for determining the bond strength. Selection of more compatible combinations of denture base resins and acrylic teeth may reduce the number of prosthesis fractures and the resultant repairs.

Acrylic Resins↗

The role of CT in functional endoscopic sinus surgery.

The intricate anatomy of the paranasal sinus unit (sinus/nasal cavities and ostia) and its relations to the orbit and anterior cranial fossa make accurate pre-operative evaluation of disease in this region mandatory before undertaking functional endoscopic sinus surgery (FESS). Plain radiography often fails to provide vital information in cases of chronic rhinosinusitis, especially of the ethmoid labyrinth, which is a key area of the paranasal sinus unit. Computerized tomography has significantly enhanced the scope of endoscopic sinus surgery by offering the surgeon hitherto inaccessible information regarding the sinus status. In this article, we review the pros and cons of the two imaging modalities, and present our experience fo 70 CT scans in patients of FESS. We also propose a surgical classification of CT findings. All in all, plain radiographs prove to be of little value for pre-operative assessment in FESS, while CT scans are an essential tool.

Endoscopy↗

The treatment of minocycline-induced brainstem vertigo by the combined administration of piracetam and ergotoxin.

Two randomized studies to test the efficacy of a combination of Piracetam and Ergotoxin on the destabilized brainstem are reported. In the first study, a pharmacological model using Minocycline is employed. A follow-up clinical study analysed the effect of the preparation in 5 patients suffering from vertigo and other related complaints. It was seen that there was a significant improvement in the nystagmus profiles of the pharmacological model volunteers. Similarly, the patient group showed a marked improvement in symptoms, and in orientation capability as tested by Cranio-Corpo-Graphy.

Adult↗

A computer analysis of typical CCG patterns in 1,021 neuro-otological patients.

A set of 1,021 patients who were investigated at our Department over the last few years was investigated in this study. Each patient underwent Cranio-Corpo-Graphy, and other related investigations. The patients' CCG's were quantified using a specially developed computer scanning method, and a computerized spreadsheet databank was thus created. Also included in the study were their clinical profiles, as charted using the NODEC III questionnaire. The isolation and comparison of various data subsets enables us to draw broad correlations between clinical and CCG findings, and permits us to establish 'normal values' for various parameters. It is seen that cranio-corpography is a reliable screening method for the topodiagnosis of vertigo.

Adult↗

An investigation into the effect of solidification shrinkage on distortion of casting and flexure strength of various solders for base metal alloys. A laboratory study.

This study was undertaken to determine the distortion due to solidification shrinkage and to evaluate the flexure strength properties of soldered joints between combination of three commercially available base metal alloys and solders. Ninety rectangular bars were cast using three commercially available alloys for soldering (30 bars of each alloys). Ten bars of each alloy were soldered using electrical soldering unit and solder recommended by respective manufacturers, twenty bars (ten pairs each) were soldered using other solders. Length between the references markings on the specimen were measured using a vernier caliper and travelling microscope to check the possible solidification shrinkage. The specimens were then subjected to flexure strength evaluation using a universal testing machine. Statistical comparison of dimensional changes due to solidification shrinkage and flexure strength evaluation of soldered joints was done using analysis of variance test. Recommended Ni-Cr solders showed less shrinkage compared to that of the Co-Cr solders from the tested specimens and superior flexure strength was found in Co-Cr alloy specimen (P value P > .001) soldered with Co-Cr alloy solders.

Analysis of Variance↗