A Study Investigating the Effective Pharmacological Factors in the strength of filled teeth, with a Medicinal Material

The aim of this study was to evaluate the presence or absence and difference of cotton size in gnashing strength of teeth filled with temporarily dressing material «coltosol». In this study, 60 human premolar teeth that had been extracted for orthodontic reasons or periodontal problems are done. Samples by stereomicroscope to leave a review before work were examined. On the teeth, access cavities for (MOD) created and for the removal of dentin tissue, teeth canals were prepared up to number 30 files. A picture was taken teeth before and after access, cavity preparation and teeth were divided randomly into four groups of 15. The first group without dressing as a control group, the second group has a cotton ball with a bandage covering only orifices (Coltosol) and the third group with a cotton ball with a bandage covering larger pulp chamber and the fourth group without a cotton ball and was just dressing. All samples were stored in room temperature water. The teeth 2500 cycle in the thermocycled were placed and then press each tooth with a Testometric and the failure threshold were recorded and analyzed by ANOVA test was used. The results showed that application of cotton under dressing lead to reduce the strength gauze is compared to lack of cotton (ANOVA, p <0.05). The results showed that application of cotton under dressing led to a reduction in the strength of the dressing material in premolars teeth. Also, by increasing the thickness of cotton, dressing strength reduced.

[1]  Z. Ahangari,et al.  Coronal Sealing Ability of Three Temporary Filling Materials , 2012, Iranian endodontic journal.

[2]  D. Watts,et al.  Time-dependence of coronal seal of temporary materials used in endodontics. , 2008, Australian endodontic journal : the journal of the Australian Society of Endodontology Inc.

[3]  P. Bernabé,et al.  COMPARISON OF THE BIOCOMPATIBILITY OF DIFFERENT ROOT CANAL IRRIGANTS , 2008, Journal of applied oral science : revista FOB.

[4]  L. Bjørndal,et al.  A temporary filling material may cause cusp deflection, infractions and fractures in endodontically treated teeth. , 2005, International endodontic journal.

[5]  P. Eleazer,et al.  Comparison of endodontist versus generalist regarding preference for postendodontic use of cotton pellets in pulp chamber. , 2002, Journal of endodontics.

[6]  P. Eleazer,et al.  Degradation of the sealing properties of a zinc oxide-calcium sulfate-based temporary filling material by entrapped cotton fibers. , 2001, Journal of endodontics.

[7]  M. Cochran,et al.  In vitro study of marginal leakage between temporary sealing materials and recently placed restorative materials. , 1986, Journal of endodontics.

[8]  M. Simon,et al.  Microleakage of Cavit temporary filling material in endodontic access cavities in monkey teeth. , 1980, Oral surgery, oral medicine, and oral pathology.

[9]  A. A. Krakow,et al.  In vivo study of temporary filling materials used in endodontics in anterior teeth. , 1977, Oral surgery, oral medicine, and oral pathology.