Medicine and Health Sciences Commons^™

Association Between Hypodontia And Angles Malocclusion, Batool A. Haider, Syed Sheeraz Hussain

Department of Surgery

Abstract

This study was planned to determine the prevalence of hypodontia in permanent dentition and to test whether an association was present between hypodontia and Angle's malocclusion. The retrospective study was conducted at a tertiary care hospital, Karachi, and comprised record of all patients visiting the orthodontic clinics of the hospital from 2005 to 2015. Orthodontic records of 790(79%) subjects, including 189(23.9%) males and 601(76.1%) females, were reviewed. Their mean age was 17 ± 5.06 years. A tooth was considered missing if no evidence of tooth germ was observed on orthopantomograms and dental casts. The total sample was distributed into …

Age Estimation Of A Sample Of Pakistani Population Using Coronal Pulp Cavity Index In Molars And Premolars On Orthopantomogram, Sheikh Bilal Badar, Rabia Ghafoor, Farhan Raza Khan, Muhammad Hasan Hameed

Department of Surgery

The aim of the present study was to assess the validity of tooth-coronal index (TCI) in the age estimation. This retrospective charts review was conducted at the Aga Khan University Hospital, Karachi from January 2016 to March 2016, and comprised 315 teeth of 80 individuals. The teeth were analysed on Orthopantomogram. TCI was calculated for unrestored mandibular premolars and molars. Pearson's correlation was applied to assess correlation between chronological age and TCI. Besides, 30(37.5%) subjects were male and 50(62.5%) female, and 140(44.4%) teeth were of male subjects and 175(55.6%) were of females. The mean correlation coefficient between chronological age and …

Prevalence Of Musculoskeletal Disorders Among Dentists In Teaching Hospitals In Karachi, Muhammad Hasan Hameed, Rabia Ghafoor, Farhan Raza Khan, Sheikh Bilal Badar

Department of Surgery

Work-related musculoskeletal pain is common among healthcare professionals, including dentists. This crosssectional study was conducted to determine the prevalence of work-related musculoskeletal disorders (MSDs) among dentists. This study was carried out from January to April 2016 at various teaching hospitals of Karachi, and comprised 230 dentists. A self-administered questionnaire, adapted from a validated Nordic questionnaire, was distributed among the participants. Descriptive statistics were computed and associations of interest were analysed using chi-square test. Of the 230 forms, 182(79.11%) were included after leaving out the incomplete ones. The overall prevalence of MSDs was 138(75.8%). The most frequent reasonsfor MSDs were lack …

Comparison Of Fracture And Deformation In The Rotary Endodontic Instruments: Protaper Versus K-3 System, Sana Ehsen Nagi, Farhan Raza Khan, Munawar Rahman

Department of Surgery

Abstract

This experimental study was done on extracted human teeth to compare the fracture and deformation of the two rotary endodontic files system namely K-3 and Protapers. It was conducted at the dental clinics of the Aga Khan University Hospital, Karachi, A log of file deformation or fracture during root canal preparation was kept. The location of fracture was noted along with the identity of the canal in which fracture took place. The fracture in the two rotary systems was compared. SPSS 20 was used for data analysis. Of the 172(80.4%) teeth possessing more than 15 degrees of curvature, fracture …

A Review Of The Failed Cases Of Dental Implants At A University Hospital In Karachi, Farhan Raza Khan, Rabia Ali, Sana Ehsen Nagi

Department of Surgery

Abstract

The retrospective study was conducted to assess the dental implants that experienced failure. It was conducted at the dental clinic of the Aga Khan University Hospital, Karachi, and comprised record of dental implants from July 2010 to June 2015. Variables such as patient age, gender and systemic status, length and diameter of implants, bone grafting, type of definitive prosthesis (crown or bridge or overdenture), nature of retention (cement versus screw retained), loading strategy (immediate versus delayed loading), etc. were analysed. Of the 220 implants placed, 6(2.7%) failed to integrate (as revealed by torque test) at the beginning of prosthetic …

A 6-Year Evaluation Of 223 Tapered Dental Implants And Associated Prosthesis In 92 Patients At A University Hospital, Sana Ehsen Nagi, Farhan Raza Khan, Khan, Rabia Ali

Department of Surgery

Abstract

The aim of the retrospective study was to assess the clinical and radiographic outcome of the dental implant surgery and prosthetics. It was conducted at the Aga Khan University Hospital, Karachi, and comprised of medical charts and radiographic records of patients visiting between 2010 and 2015. Variables such as implant dimensions, final prosthesis, method of retention, loading protocol and patient factors were analysed. A total of 223 implants (143(64.1%) in maxilla and 80(35.9%) in mandible) were placed in 92 subjects (50(54.3%) males and 42(45.7%) females). All implants were Zimmer tapered screw-vent. Length of 108(48.4%) implants was 11.5mm and diameter …

Bilateral Radicular Cyst With Severe Destruction Of The Buccal Cortical Plate Secondary To Endodontic Failure, Rabia Ghafoor, Kiran Rehman

Department of Surgery

Abstract

Large apical radiolucencies after endodontic treatment are usually advised orthograde retreatment, apical surgery and that too with a guarded prognosis. Microsurgical techniques, the use of ultrasonic and magnification aides, have been in use in the developed countries for the past few decades and have shown significant improvement in long-term success of such cases. MTA is proposed as one of the best materials for sealing root end surfaces. In this report, the healing response of cases of 2 large apical radiolucencies, found separately in the anterior maxilla, which were treated by orthograde as well as retrograde endodontic treatments and guided …