Comparative Analysis of the Surface Roughness of Class V Composite Restorations Using a Conventional Polishing System and Pre-contoured Cervical Matrices: An In Vitro Study.

Background: Rough surfaces of restorations have an impact on the accumulation of plaque, unaesthetic contour, and marginal adaptation, thereby affecting their functional, aesthetic, and clinical performance and the long-term stability of the restoration. Several polishing systems are currently in use for composite restorations, but information on their impact on surface roughness is limited. The present study aimed to determine the surface roughness of class V composite restorations polished using pre-contoured cervical matrices and to compare it with a conventional disc polishing system.

Dentist perspective on knowledge and practice toward Ellis class 3 tooth fracture: A survey.

Traumatic dental injuries otherwise referred to as dental trauma is common in dental practice. The etiology of dental trauma is mostly falls and accidents in case of children and young adults. The treatment provided should be quick and effective which depends on the extent of the dental trauma, the injury might expose enamel, dentine and pulp of the affected teeth.

Antibiotic Susceptibility Pattern of Bacteria Causing Urinary Tract Infection.

Background: Urinary tract infection is one of the commonest infectious diseases worldwide. This study was carried out to determine the antimicrobial susceptibility pattern of bacteria causing urinary tract infection visiting Kathmandu University Hospital.

Methods: A total of 3,500 urine samples were processed and antibiotic resistance pattern was determined following Clinical Laboratory Standard Institute guidelines.

Evaluation of as matrix metalloproteinase inhibitor in human dentin with and without dentin-bonding agent: An study.

Background: Proper hybrid layer formation lays the foundation of resin-dentin bonding. The resin infiltration in demineralized dentin collagen couples with the adhesive/resin composites in the mineralized dentin surface. However, the activation of enzymatic activity in the collagen matrix can degrade the hybrid layer.

Evaluation of indomethacin as matrix metalloproteases inhibitor in human dentin.

Objective: The objective was to determine a new experimental material, indomethacin's inhibitory effect on the enzymatic activity of dentin collagen.

Materials And Methods: Fifteen freshly extracted teeth were collected and stored at 4°C until use. Enamel, roots, and remnant pulp tissue were removed, and dentin powder was obtained by pulverizing liquid nitrogen-frozen coronal dentin with a mortar pestle.

Emergence of clinical isolates of highly carbapenem-resistant Klebsiella pneumoniae co-harboring bla and bla in Nepal.

Objectives: The aim of this study was to describe the emergence in Nepal of clinical isolates of Klebsiella pneumoniae harboring both bla and bla.

Methods: Six clinical isolates of K. pneumoniae highly resistant to carbapenems and aminoglycosides were obtained from inpatients in Nepal.