Optical coherence tomography (OCT) is an interferometric imaging technique. This study aimed to employ OCT to evaluate four different resin-based materials including a coating containing glass-ionomer filler and calcium, a giomer, and two fluoride-releasing self-etch resins. The coating and its underlying and adjacent enamel were monitored using swept-source OCT (center wavelength: 1330 nm) at ...

results in the first series, cellularity and blood levels were significantly lower in capillary-fnb compared with cfnb (p < 0.001 and p = 0.011, respectively). there was no significant difference between cfnb and vacfnb in cellularity and blood (p = 0.15 and p = 0.1, respectively). in the second series, cellularity was significantly higher in cfnb compared with vacfnb (p < 0.001) with no signif...

the technique of transbronchial lung biopsy (tblb) has expanded the diagnostic yield of bronchoscopy . in this article we are presenting 54 patients with diffuse pulmonary parenchymal involvement who underwent this procedure during six years between june 1980 and december 1989. the diagnostic yield of this technique in diffuse pulmonary parenchymal disease is great and was 66 percent excluding ...

INTRODUCTION Gingiva is a common site for reactive, non-neoplastic, and neoplastic lesions with unspecific clinical features (Fig. 1): desquamative gingivitis as expression of mucocutaneous diseases (lichen planus, pemphigus, pemphigoid, plasma-cell gingivitis, lupus erythematosus), preneoplastic lesions (gingival verrucous proliferative leukoplakia), and gingival enlargements (gingival fibroma...

STUDY OBJECTIVE To compare the diagnostic sensitivity of a modified Abrams needle pleural biopsy technique (A1) with the standard Abrams (A2) and Cope needle biopsy methods. The modified Abrams pleural biopsy technique consisted of suctioning each tissue sample into a syringe without removing the needle completely from the chest until the completion of the entire procedure. Both the standard Ab...

The treatment of musculoskeletal neoplasms and infection is usually based on an initial diagnostic biopsy.Prior to biopsy, a hypothesis should be formed about the most likely diagnosis and a differential diagnosis. These deliberations should consider whether the lesion is a primary benign or malignant tumour, a metastasis, a haematological problem or an infection.A tactical plan should be devel...

Introduction: The liver fibrosis is caused by extracellular accumulation of cluster, glycos amino glycans and proteoglycans, which this extracellular accumulation may limit the penetration and molecular movement of water in the tissue, so the Diffusion weighted imaging(DWI) technique is due to the sensitivity to the movement and release of water molecules Can show this restrict...

PURPOSE Several "one-bottle" dental adhesives recently have been introduced. These contain hydrophilic resin monomers that should readily wet tooth surfaces. Most also contain solvents that could increase enamel bond strengths by driving out residual moisture from enamel and increasing resin penetration. The purpose of this study was to evaluate bond strengths obtained by six one-bottle bonding...

UNLABELLED The self-etch approach provides dentists with a generation of user-friendly and less technique-sensitive adhesives. Nevertheless, some concern has been raised regarding their bonding effectiveness to enamel, in particular when so-called 'mild' self-etch adhesives are employed. OBJECTIVES The purpose of this study was to test the hypothesis that the two-step self-etch adhesive Clear...

OBJECTIVES Extracted teeth used in dental research need to be considered infective and hence be sterilized without the materials' properties being altered. This study examined the effect of gamma radiation on the nano-mechanical properties of dentin and enamel of extracted human third molars. METHODS Whole teeth were sterilized using gamma radiation doses of 7 kGy and 35 kGy, respectively; te...