IADR Abstract Archives
Estimation of Average working length of Maxillary first premolars in patients attending Dow Dental College
Objectives: To determine the average working length of Maxillary First Premolars in patients attending Dow Dental College
Methods: This Retrospective study was conducted at the Department of Operative Dentistry, Dow Dental College for a period of 6 months.
Sample size was calculated through WHO sample size software with hypothesis test for a population mean formula.
Taking 5% level of significance (α), 80% power of test (β) and 19.5 ± 1.61(reference) mean and standard deviation of first maxillary premolar buccal root. To achieve 0.3 difference of mean of first maxillary premolar buccal root we required 179 working lengths of first maxillary premolar buccal root. Buccal 19.5 ± (1.61) and palatal 19.3 ± (1.55).
Dental records of 179 patients aged between 12-65years who had undergone Root Canal Treatment of first maxillary premolar at Dow Dental College Operative Department will be included. This is an on-going project and we have included record of 58 patients so far.
Working length of the maxillary first premolar was noted from the history form. All maxillary first premolars of which the working lengths are not written in the form were excluded. All results were recorded by a single observer.
Data was entered and analyzed by SPSS software version 21. Mean and standard deviation was calculated for all quantitative variables like (age, working lengths of buccal root, working lengths of palatal root)
Frequency and percentages was calculated for all qualitative variables like (gender).
T-test was used to compare the mean working lengths of buccal and palatal roots with gender and different age groups.
Results: Results show the mean working lengths based on gender and age differences.
Percentage of males vs females is shown in the pie chart no 1.
The mean working length of maxillary first premolar palatal and buccal root along with gender is shown in table 1.
The average working length of first maxillary premolar palatal and buccal roots for various age groups are presented in table no 2
Conclusions: Thus it can be concluded that greater values of average working length of palatal and buccal roots of maxillary first premolars is seen in males within the age group of 35-55 years
Methods: This Retrospective study was conducted at the Department of Operative Dentistry, Dow Dental College for a period of 6 months.
Sample size was calculated through WHO sample size software with hypothesis test for a population mean formula.
Taking 5% level of significance (α), 80% power of test (β) and 19.5 ± 1.61(reference) mean and standard deviation of first maxillary premolar buccal root. To achieve 0.3 difference of mean of first maxillary premolar buccal root we required 179 working lengths of first maxillary premolar buccal root. Buccal 19.5 ± (1.61) and palatal 19.3 ± (1.55).
Dental records of 179 patients aged between 12-65years who had undergone Root Canal Treatment of first maxillary premolar at Dow Dental College Operative Department will be included. This is an on-going project and we have included record of 58 patients so far.
Working length of the maxillary first premolar was noted from the history form. All maxillary first premolars of which the working lengths are not written in the form were excluded. All results were recorded by a single observer.
Data was entered and analyzed by SPSS software version 21. Mean and standard deviation was calculated for all quantitative variables like (age, working lengths of buccal root, working lengths of palatal root)
Frequency and percentages was calculated for all qualitative variables like (gender).
T-test was used to compare the mean working lengths of buccal and palatal roots with gender and different age groups.
Results: Results show the mean working lengths based on gender and age differences.
Percentage of males vs females is shown in the pie chart no 1.
The mean working length of maxillary first premolar palatal and buccal root along with gender is shown in table 1.
The average working length of first maxillary premolar palatal and buccal roots for various age groups are presented in table no 2
Conclusions: Thus it can be concluded that greater values of average working length of palatal and buccal roots of maxillary first premolars is seen in males within the age group of 35-55 years
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