Padmanabhan Shankar

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OBJECTIVES The study assessed quantitatively the calcium and phosphorous loss from the enamel surface following bleaching with 35% hydrogen peroxide and reversal with 10% sodium ascorbate using energy-dispersive X-ray analysis (EDAX). MATERIALS AND METHODS Eight non-carious, freshly extracted human permanent maxillary central incisors without any visible(More)
OBJECTIVE Anatomical racial variations are an acknowledged characteristic in permanent molars. Generally, mandibular first molars have 2 roots; however, the presence of a third root, radix entomolaris (RE), is a major anatomic variant among many population groups. This study evaluated the prevalence of permanent mandibular first molars featuring a(More)
BACKGROUND The aim of this in vitro study was to evaluate the depth of penetration of 4 different endodontic resin sealers into the radicular dentinal tubules with the aid of confocal microscopy. METHODS Eighty single-rooted teeth were instrumented and divided into 4 groups composed of 20 teeth each. The samples were obturated with AH Plus, RealSeal,(More)
Identification and treatment of extra canals is the cornerstone to successful endodontic practice. Over the years, many diagnostic aids have evolved to facilitate the clinician in detection of hidden canals and to familiarize with the internal radicular anatomy. This case report highlights the rare incidence of 3 canals in the distal root of a permanent(More)
Forty acrylic blocks with curved canals were divided into two groups of 20 each. One group had canals with 30-degree curvature and the other with 45-degree curvature. Each group was divided into two subgroups of 10 blocks each. One subgroup was instrumented with precurved Kerr files and the other was instrumented with Canal Master hand instruments. The(More)
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