Document Details Document Type : Article In Journal  Document Title : COMPARISON OF THE TISSUE DISSOLVING ABILITY OF SODIUM COMPARISON OF THE TISSUE DISSOLVING ABILITY OF SODIUM   Document Language : English  Abstract : Aim:The present investigation was undertaken to compare the tissue dissolving ability of adult and young intact human pulp tissues using different sodium hypochlorite concentrations. Materials and methods: A total of 72 intact human pulps extirpated during routine RCT from two age groups (36 adult and 36 young pulps) were experimented with. Each group was divided into 4 equal subgroups of nine pulps each (n=9). Extirpated pulps were placed separately in glass test tubes and submerged in the specified body warm sodium hypochlorite solutions of different concentrations namely, 2.6%, 1.3%, and 0.7%. The fourth subgroup of pulps was submerged in distilled water to act as a control. Closed test tubes were then subjected to ultrasonic agitation until complete dissolution occurred. Time lapse until pulp tissue dissolution was recorded and results were statistically analyzed. Results: Distilled water was not able to dissolve any of the tested pulp tissues. All the experimented sodium hypochlorite concentrations dissolved pulp specimens completely. Time needed ranged from a minimum of 2.67±1 minutes in young pulp specimens at 2.6% cone. to a maximum of9.67 ±3.7l minutes in adult pulp specimens at 0.7% cone. An inverse relation was found between sodium hypochlorite concentrations and the time needed for complete pulpal dissolution both in adult and young pulps. Young pulps dissolved in less time as compared to adult pulps. The difference was found to be statistically significant. Recommendation: Within the limits of this study it is recommended to use a 2.6% concentration of sodium hypochlorite for the adult pulps and 1.3% for the deciduous teeth during cleaning and shaping to affect complete pulp tissue dissolution in 3 minutes for the former and 4 minutes for the later cases.  ISSN : 0  Journal Name : Egyptian dental journal  Volume : 53  Issue Number : 3  Publishing Year : 2007 AH 2007 AD  Article Type : Article  Added Date : Saturday, February 23, 2008  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email مديحة جمعة Gomaa, Madiha Investigator Doctorate   ليلى باهمام Bahammam, Laila Researcher Doctorate   عبير النويصر Alnowaiser, Abeer Researcher Doctorate   ميسون حجي Haggi, Myson Researcher Doctorate   Files File Name Type Description  COMPARISON OF THE TISSUE DISSOLVING ABILITY OF.pdf pdf   Back To Researches Page