A research of influence of cervical settling on marginal accuracy

Objectives:To evaluate the influence of cervical settling method on marginal accuracy in wax patters. Methods:24 wax patterns were made on the standarded as-cast specimens and round capsules of which twelve patters were with the method of cervical settling.They were randomly divided into two groups, each of 12 patterns. One group was tested on coping patters after half an hour and marginal accuracy of patterns were measured under traveling microscope.The other group was measured after twenty-four hours with the same method. Results:The results revealed that marginal accuracy had significant difference between the cervical settling methods and normal methods (p<0.05).There was higher significant difference between the groups measured after half an hour and twenty four hours. Conclusions:Wax patterns with the method of vertical discrepancy can improve marginal accuracy of patterns. The marginal accuracy of wax patters are influenced by their existing time.