Abstract The characteristics of cellulose nanofibers (CNFs) depend on many factors such as the raw material, type and intensity pre-treatment, severity mechanical defibrillation process. relationship among is complex but crucial in determining final, fit-for-use CNF properties. This study aims to find between properties morphology, aspect ratio, nanofibrillation yield, transmittance cationic de...

Water-soluble sulfonated cellulose (SC) samples were synthesized by oxidizing hardwood kraft pulp with sodium periodate followed by the sulfonation reaction with sodium bisulfite. Six levels of oxidation/sulfonation were obtained by using different mmols (0.93-4.67) of periodate per gram of pulp. The aldehyde and sulfonic acid contents, surface morphology, and water solubility property of these...

As right quoted by MT Barrett, “of all the phases of anatomic study in human system, one of the most complex is the pulp cavity morphology.” The external and internal morphology of the tooth varies from person to person. For each tooth in permanent dentition, there is a wide range of variation reported in literature with the respect to frequency of occurrence of the number and shape of the cana...

The basic density, fibre and vessel morphology of five clones of Eucalyptus tereticornis developed by ITC Bhadrachalam were reported. The five clones represented by four trees each of four and half years old, were from Sarapaka, Andhra Pradesh. Significant variation have been found among the clones. Basic density is positively correlated with fibre length, vessel diameter and positively correla...

background: dental pulp stem cells can be used in regenerative endodontic therapy. the aim of this study was to introduce an efficient method for dental pulp stem cells isolation. materials and methods: in this in-vitro study, 60 extracted human third molars were split and pulp tissue was extracted. dental pulp stem cells were isolated by the following three different methods: (1) digestion of ...

Wheat straw was subjected to three different processes prior to saccharification, namely alkaline pulping, natural pulping and autohydrolysis, in order to study their effect on the rate of enzymatic hydrolysis. Parameters like medium concentration, temperature and time have been varied in order to optimize each method. Milling the raw material to a length of 4mm beforehand showed the best cost-...

Introduction Based on previous researches, dental pulp stem cells (DPSCs) are easily accessible with limited morbidity after collection. Their embryonic origin, from neural crests, explains their multipotency. DPSCs are primarily derived from the pulp tissues of the teeth.Objective: This study was undertaken to isolate, culture, and characterize two different third molar and first premolar hum...

The aim of this study was to evaluate the immediate changes in the pulp-dentin complex that result from crown preparation, and their correlation with the thickness of remaining dentin and the preparation technique (with or without water spray cooling). Thirty upper intact premolars scheduled for extraction for orthodontic reasons were high speed prepared, extracted immediately after preparation...

Objective: to obtain a histological comparison of tertiary dentin after indirect pulp capping procedures using calcium hydroxide or MTA in teeth with deep carious lesions, regarding its morphological characteristics and degree of inflammation induced in the dental pulp. We used 60 third molars with occlusal caries lesions from 30 patients of 17-26 years of age. Class I and II deep cavities were...

The aim of this study was to evaluate the immediate changes in the pulp-dentin complex that result from crown preparation, and their correlation with the thickness of remaining dentin and the preparation technique (with or without water spray cooling). Thirty upper intact premolars scheduled for extraction for orthodontic reasons were high speed prepared, extracted immediately after preparation...