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
ABSTRACT
Partial nephrectomy is the preferred procedure in benign renal lesions requiring surgical removal. It has also been accepted procedure for malignant renal conditions of smaller size. The aim of this observational study was to determine the outcome of partial nephrectomy in terms of complications and recurrence rates. Twenty patients with renal mass underwent this procedure from January 2010 till June 2014 at our Department, with mean age of 46.51 +/- 1.53 years. There were 14 males and 6 females. Renal mass on CT scan had the mean size of 3.80 +/- 1.15cm. The mean hospital stay in this series was 5.11 +/- 1.42 days, while mean operative time was 247 +/- 79.71 minutes. Twelve patients had malignant histology. They were followed using CT scan abdomen and pelvis with contrast at six and 12 months. Out of these, 10 [83.3%] patients were found to have no recurrence after six months
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Kidney Neoplasms/surgery , Neoplasm Recurrence, LocalABSTRACT
Debonding of orthodontic brackets is the last step of orthodontic treatment. This step should be performed carefully and with the best available method. The purpose of this study was to compare the site of bond failure after debonding brackets by debonding plier and crown remover. One hundred sixty newly extracted premolars were bonded with metal brackets and randomly assigned to two study groups [n = 80].In one group brackets were debonded with debonding plier[DR] using base method while in other group brackets were debonded with crown remover[CR]. Enamel surface after debonding was subsequently assessed visually for any adhesive remnant and adhesive remnant index [ARI] scoring based on 4 scores from 0 to 3 was applied. The ARI scorings of these two pliers were cross tabulated. The site of bond failure was mostly within the adhesive after debonding with crown remover while it was at enamel adhesive interference after debonding with debonding plier. It was concluded that crown remover is safer in terms of enamel integrity than debonding plier
ABSTRACT
The aim of this study was to compare the debonding time and pain or discomfort between conventional mechanical debonding with sonic and ultrasonic debonding of stainless steel brackets. One hundred fifty brackets were debonded at the end of 2 years of comprehensive orthodontic treatment from 12 patients of both sexes of age range between 15-25 years using non probability sampling technique. Mechanical debonding of brackets was done with debonding plier using wing method. Ultrasonic and sonic scalers were used to debond the brackets engaging the bracket from incisal side. Debonding time in seconds and patient perception of pain on a scale of 0-4 was noted. One way ANOVA was used to compare these three techniques in terms of time efficiency and pain or discomfort at time of debonding. Mechanical debonding was successful in all the cases while ultrasonic and sonic debonding failed to debond the brackets in 16% and 36% of the cases respectively. Mechanical wing method debonds brackets in 1.28 +/- 0.49 seconds, ultrasonic debonding in 42.53 +/- 20.25 while sonic method debonds brackets in 70.18 +/- 22.28 seconds. More pain was felt by mechanical debonding followed by sonic and ultrasonic debonding respectively. Difference in debonding time and pain were found statistically significant between these three different techniques. It was concluded that that no single method is time efficient and at the same time least painful for the patient. Mechanical debonding was most time efficient while ultrasonic debonding was least painful
Subject(s)
Humans , Male , Female , Pain , Orthodontic Brackets , Stainless SteelABSTRACT
The placement of orthodontic bands on molar teeth is a routine procedure during orthodontic treatment .There is a possibility that bacteria may enter the blood stream during this process. The objective of this study was to determine the frequency of post procedural bacteremia in patients undergoing orthodontic banding. A Cross sectional survey was carried out at the Department of Orthodontics, de, Montmorency College of Dentistry / Punjab Dental Hospital Lahore during a period of 6 months [1[st] March ,2009 to 31[st] August, 2009] The study included 140 subjects with age range between 8-25 yrs of both sexes. Bands were placed on molar teeth and blood samples were taken before and after placement of bands. Blood cultures were done on the samples to assess the presence of bacteremia. The study revealed that there was no significant bacteremia after orthodontic banding so as to be considered a potential threat for normal patients. It was concluded that the level of bacteremia detected was not significant to be considered hazardous in routine orthodontic treatment. The prescription of antibiotic therapy should be based on the latest guidelines