Bioactivity of aNanoEggshell-modified Calcium Hydroxide Dental Cement: An In-vitro Study
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 7
Abstract
This study aimed at investigating the effect of addingNano eggshell powder to a chemically-cured calcium hydroxide dental cement on its bioactivity, calcium ion release and pH. Materials and Methods: The Nano eggshell(NES)-modified calcium hydroxide cement was prepared by adding10 wt. %Nano eggshell powder to the base part of chemically-cured Dycal (control). Discs; 8.0± 0.1 mm in diameter and 1.6 ± 0.1 mm in thickness, werepreparedin PVC moldsbymixing equal volumes of the unmodified/ modified base to the catalyst. Calcium ion release and pH (n=12/group for each test) were measured in deionized water usinginductively coupled plasma (ICP) and pH meter respectively at 1, 7, 14 and 28 days after incubation at 37oCand 99% relative humidity. Bioactivity wastested using Hank’s Balanced Salt Solution (HBSS) as a simulated body fluid.The apatite-forming ability was assessed after 7, 14 and 28 days, using SEM and EDX analysis. The results were statistically analyzed andP-values ≤0.05were considered significant. Results: Compared to the control, the NES-modified cement showed higher calcium ion release at 7 and 28 daysand higher pH values at 1,14 and 28 days. SEM micrographs and EDX analysis of NES- modified cement revealed enhanced early and sustained bioactivity as confirmed by the continuous formation of an apatite layerafter 7 days immersion in HBSS. Conclusion: The addition of Nano eggshell powder to a chemically-cured calcium hydroxide cement rendered higher alkalinity and calcium ion release, which in turn enhancedits bioactivity.
Authors and Affiliations
Nahla A. Elsalamony, Dalia M. Abdel- Hamid, Nahed G. Bakir
Keywords
Related Articles
- EP ID EP377224
- DOI 10.9790/0853-1707036878.
- Views 61
- Downloads 0
Profile of suicidalcut throat injury in a tertiarycare hospital
Suicide is one of the leading cause of death. Though suicidal cut throat is uncommon but it is still encountered in emergency practice of an otorhinolarygologist. A prospective study of 10 cases from January 2014 to Jan....
A study on compliance of antenatal care among the mothers attending immunisation clinic of Murshidabad Medical College and Hospital, West Bengal
Introduction: Maternal death is more common in developing countries than developing countries. Though the death rate is declining, there are new targets set to accelerate the decline. One of the main way to reduce the ma...
Role of Hysteroscopy in Diagnostic Evaluation of Intrauterine Causes of Abnormal Uterine Bleeding Compared to Pathology Reports .
Background: Abnormal uterine bleeding is a common gynaecological problem affecting 25-35% women of reproductive age group and upto 50 % women of perimenopausal age group .there are various causes of AUB classified accord...
Assessment of Surgical Site Infection in A Tertiary Care Set Up in Kolkata
The common Health Care Associated Infection (HCAI) as per CDC updated 2007 is UTI (32%) followed by postoperative wound infections (22%), Nosocomial pneumonia (15%) and Nosocomial septicaemia (14%). Keeping these facts i...
Clinico Histopathological Correlation in Leprosy
Introduction: Leprosy is a chronic, infectious disease caused by Mycobacterium leprae. It is classified into five groups based on clinical, histological, microbiological and immunological criteria (Ridley & Jopling Class...