ABSTRACT
Demographic studies are important for understanding the prevalence and various patterns associ-ated with impacted canine for early diagnosis and success of treatment. The aim of this study was to evaluate prevalence and different patterns of mandibular impacted canines [MIC], using cone beam computed tomography [CBCT].CBCT records of 3469 patients were taken from two different radiological centers. Sorting of data for MIC was done using Romexis viewer 4.6.0. R. Data was analyzed statistically and descriptive statics for age, gender, side and position of impaction were generated. Chi-square test was used to evaluate gender dysmorphism in terms of presence, position and side of MIC. A p-value of <0.05 was taken as significant. 20 patients with MIC were identified with a mean age of 19+2.2 years. 85% of MIC were unilateral while 15% were bilateral. 15 % of MIC were transmigrated and were unilateral with a male to female ratio of 2:1.70% of MIC were labially placed. Bilateral impactions were found only in males. No gender dysmorphism was noted for presence, position and side of impaction [p value >0.05]. The prevalence of impacted mandibular canine was 0.57% while prevalence of transmigration was 0.09%. Unilateral and labial position of impacted canine was more predominant
ABSTRACT
Orthodontic brackets manufacturer does not reveal their actual slot height. Tolerance if present in bracket slot can lead to poor three-dimensional control of teeth. This study was done to determine the manufacturer tolerance in slot height of maxillary canine brackets.Mesial and distal slots of one hundred and forty stainless steel maxillary canine brackets of seven commercial brands in 0.022-inch ["] slot were measured individually with leaf gauges of 0.01millime-ter [mm] thickness. Digital readout in inches of leaf gauges was attained by micrometer. Descriptive statistics were generated for bracket slot height and one sample T test was used to check whether significant tolerance exist in slot height. A p value < 0.05 was considered as significant.Smallest mean slot height of 0.0233+.0006 " was noted in mesial slot of Db orthodontics brackets while largest mean height of 0.0258+.0015 " were present in mesial slot of Mesal brackets. Maximum slot height of 0.028 " was noted in Precise and Sia brackets. Increase tolerance in brackets were noted in the range of 5.9 to 17.2%. A p value < 0.05 was found in all the slot heights under study showing significant difference from acceptable tolerance.All the bracket series have significant oversized slot height on both mesial and distal aspect. Eu-ropean orthodontic brackets were closer to standards than brackets manufactured in USA
ABSTRACT
Maxillary canines are considered as the cornerstone of the mouth. This study aims to estimate the prevalence and unfold various patterns present in maxillary canine impactions using cone beam computed tomography [CBCT].Digital records of 3469 patient were collected from two different radiological units. Sorting of CBCT data was done for identification of maxillary impacted canine's cases. Data were analyzed statistically, and descriptive statics were generated for age, gender, quadrant, and position of impacted canines. Chi-square test was used to check the difference in the distribution of impacted canines regarding gender, quadrant and position of impacted teeth. A p-value of <0.05 was taken as significant.One hundred and eighty-seven patients were identified with impacted maxillary canines making a prevalence of 5%, with a mean age of 17.9 +2.65 years. 117 impacted canine cases were located in females while 70 impacted canine cases were in males. Female to male ratio was1.67:1. Statistically, a significant difference was noted between genders [p-value =0.00]. No difference was noted between genders regarding quadrant and position of impacted canines.Higher prevalence of impacted canine was noted in females, while left side predominance was found in both genders. Palatal impactions were most common while a higher prevalence of buccal impaction, than previously reported was noted in the present study