نتایج جستجو برای: pulp refining
تعداد نتایج: 31406 فیلتر نتایج به سال:
OBJECTIVE This study was designed to investigate radiographically the effects of age and external irritating stimuli on the morphology and thickness of the pulp chamber ceiling and floor in mandibular molars. MATERIALS AND METHODS A total of 234 panoramic radiographs were recruited and 494 mandibular molars were examined in this study. The sample was divided into six age groups: Group 1, <20 ...
Single-use plastic packaging is a cause of rising environmental concerns due to high production volumes, short usage time, and problems related end life management release into the environment. As result, there an increased demand develop alternative non-plastic from agricultural waste materials. This paper reported findings for converting, via atmospheric refining, oil palm empty fruit bunch (...
Dental pulp tissue was collected from 6 healthy adult patients, prior to prosthetic treatments, in order to evaluate the in situ phenotype of dental pulp stromal cells and compare with that of dental pulp stem cells. A CD34-/CD44+/CD105-/CD117+/CD146-/nestin- phenotype of stromal cells in the dental pulp core was found. Cells with a similar phenotype, but CD44-, were found in the cell richzone....
The inflammatory answer of the dental pulp in front of an antigen presents a series of particularities caused by its special anatomical conditions. The evaluation of the inflammatory answer in the evaluation tests of the biocompatibility of the dental materials is made by histological methods without defining precise quantitative criteria to measure the pulp reaction. In this study, we followed...
introduction: the aim of the present investigation was to compare the efficacy of mineral trioxide aggregate (mta) and 0.2% chlorhexidine (chx) mixture to pure mta, as a pulp capping material. methods and materials: the pulp of 24 lateral incisors and canines from four dogs were exposed and capped either with mta or mta+0.2% chx. after 2 months the animals were sacrificed and the teeth were pre...
this article describes successful use of calcium-enriched mixture (cem) cement and biodentine in apexogenesis treatment in two 8-year-old patients, one with immature permanent molar diagnosed primarily with irreversible pulpitis and the other with partially vital maxillary central incisor. after access cavity preparation, partial pulpotomy in molar and full pulpotomy in central was performed, a...
wood resources, non-wood plants and recycled papers are the common raw materials of papermaking. shortage of raw materials, is a challenging problem in developing pulp and paper industry. in this study, cladophora green algae was used as a new source of cellulosic fiberfor pulping and papermaking.. cladophora algae was cooked with cold soda method and then was mixed with nssc pulp at 10,20 and ...
INTRODUCTION Pulp sensitivity testing, even with its limitations and shortcomings, has been and still remains a very helpful aid in endodontic diagnosis. Pulp sensitivity tests extrapolate pulpal health from the sensory response. The aim of the present study was to identify the sensitivity, specificity, positive and negative predictive values (NPVs) of thermal and electrical tests of pulp sensi...
The consequences of pulp exposure from caries, trauma or tooth preparation misadventure can be severe, with pain and infection the result. The morbidity associated with treating pulp exposures is consequential, often requiring either extraction or root canal therapy. Both the loss of the tooth and its replacement, or endodontic treatment and tooth restoration, involve multiple appointments and ...
AIM Pulp stones are discrete calcified bodies found in the dental pulp. Sialolithasis is the most common salivary gland disease. The aim of the present study was to determine the relationship between the pulp stones and salivary gland stones. MATERIAL AND METHODS 196 patients were randomly selected from the out patient department for the study. The periapical radiographs for all patients were...
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