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Tandon A.,PDM Dental College and Research Institute | Agarwal V.,ITS Dental College Hospital and Research Institute | Arora V.,University of Lucknow
Journal of Oral Biology and Craniofacial Research

Objectives: The study was conducted to check the reliability of India-specific regression formula for age estimation of population in and around Bahadurgarh, Haryana (India). Materials and methods: The study was conducted using digital orthopantomograms (OPGs) of 464 subjects (253 males and 211 females). Chronologic age (CA) was derived from that mentioned on the OPG. Each tooth in the left mandibular segment was scored using Demirjian's scoring and age was calculated using the regression formulas derived by Acharya. The difference of the chronologic and estimated age was used to check the reliability of India-specific regression formula. Results: The mean estimated age was found to be significantly higher as compared to CA for overall as well as both the genders independently (p < 0.001). Difference (in ±) between estimated and CA ranged from 0 to 4.2 years. Mean difference in age was 0.85 ± 0.73 years for males and 0.87 ± 0.76 years for females. Conclusion: The published India-specific regression formula does not have reliability in the population of Bahadurgarh, Haryana and hence cannot be universally applied. © 2015 Craniofacial Research Foundation. Source

Singh S.,Shree Bankey Bihari Dental College | Sharma A.,Institute of Dental Studies and Technology | Sood P.B.,PDM Dental College and Research Institute | Sood A.,ESI Hospital Rohini | And 2 more authors.
Journal of Oral Biology and Craniofacial Research

Introduction: The present study was undertaken to assess the caries activity by comparing the pH, buffering capacity, calcium, phosphorous, amylase along with the association of mutans in saliva for caries-free and caries-active children and to find out the interrelationship amongst the two groups. Methodology: The study sample of 80 children, aged between 4 and 8 years were included in the study. Caries status of each child was recorded using DMFS. They were divided into two groups: (i) caries-free group (40) and (ii) caries-active group (40). After collecting the salivary samples, mutans were determined using Saliva-Check mutans kit and buffering capacity by Saliva-Check Buffer kit. The remaining samples were sent to laboratory for analyzing pH by electrode pH meter, calcium by OCPC(o-cresolphthalein complexone) photometric method, phosphorous by phosphomolybdate/UV method, amylase by CNP-G3(2chloro-4-nitrophenyl-alpha-maltotrioside) method using semi-autoanalyzer. Results: The results obtained were tabulated and subjected to statistical analysis. The pH, buffering capacity, calcium and phosphorous level were found to be increased with the decrease in the caries activity of the children whereas amylase activity was increased with the increase in caries activity. It was observed that 77.5% children were tested positive and 22.5% were tested negative for mutans in caries-active group whereas 100% children were tested negative for mutans in caries-free group. Conclusion: The physicochemical properties of saliva, such as pH, buffering capacity, calcium, phosphorous, amylase and Streptococcus mutans has a definite relationship with caries activity. © 2015 Craniofacial Research Foundation. Source

Yadav S.,PDM Dental College and Research Institute
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology

Necrotizing fasciitis (NF) is defined as rapidly progressive necrosis of subcutaneous fat and fascia. It is a rare but life-threatening infection characterized by a progressive, usually rapid, necrotizing process of the subcutaneous tissues and fascial planes. The condition is commonly described in the extremities, abdominal wall, and perineum but rarely seen in the head and neck. The diagnosis of NF depends mainly on clinical features, which are not always observable, so that the disease is often diagnosed late in its course, resulting in high mortality. Broad-spectrum antibiotics, aggressive surgical treatment and supportive therapy are the most widely accepted modalities of successful treatment. We describe a case of necrotizing fasciitis of the head and neck, arising from odontogenic origin. © 2012 Elsevier, Inc. All rights reserved. Source

Neeti B.,PDM Dental College and Research Institute
Internet Journal of Pediatrics and Neonatology

Dentinogenesis Imperfecta (DGI) is a genetic disorder of tooth development inherited in an autosomal, dominant way, characterized by the presence of translucent or opalescent dentin, resulting in discoloration (amber-like, bluish grey color) of the teeth. It is a mesodermal defect wherein the dental papilla of either or both the primary and secondary dentition is abnormal. This paper describes the dental findings in a family where the father (33 year old) and the son (3 year old) both showed the characteristic dental features of DGI I. © internet Scientific Publications, LLC. Source

Ghezta N.K.,HP Government Dental College and Hospital | Bhardwaj Y.,HP Government Dental College and Hospital | Rani P.,PDM Dental College and Research Institute | Ram R.,HP Government Dental College and Hospital
Journal of Oral and Maxillofacial Surgery

Purpose: The aim of this study was to evaluate the long-term clinical and radiologic results of the retromandibular transparotid approach to displaced extracapsular subcondylar mandibular fractures. Patients and Methods: A prospective cohort study was conducted over a period of 5 years on patients surgically treated for displaced extracapsular subcondylar mandibular fractures by the retromandibular transparotid approach. Variables including the type of fracture, degree of mouth opening, fracture displacement, deviation, excursive movements of the mandible, and facial nerve function were monitored before and after treatment. Appropriate statistics were computed. Results: Thirty-nine patients with 47 fractures were evaluated. There were 34 subcondylar fractures (located below the sigmoid notch) (87%), and 5 fractures were located in the head region in bilateral cases. Of the fractures, 31 (79%) were unilateral and 8 (21%) were bilateral. In a multivariate study, condylar coronal displacement, coronal sagittal displacement, difference in the ramal height, maximal interincisal distance, protrusive movements, and deviation of the mandible on opening showed statistically significant differences in pretreatment and post-treatment patients (P = .001). The interincisal distance was 46.8 mm (SD, 5.2 mm) postoperatively versus 24.1 mm (SD, 6.7 mm) before treatment. The average range of protrusion was significantly lower (P = .001) in patients before treatment, at 1.9 mm (SD, 1.2 mm), when compared with 6.1 mm (SD, 2.0 mm) postoperatively. During mouth opening, deviation of the mandible is often a sign of compensatory movement of the contralateral joint due to shortening of the ascending ramal height on the affected joint. The mean deviation of the mandible from the midline was 4.2 mm (SD, 1.0 mm) in patients before treatment, with a significant difference (P = .001) in patients after treatment, with a mean of 1.9 mm (SD, 0.995 mm). Temporary injuries to the facial nerve branches were observed in 3 cases (8%) 1 week after treatment, which later resolved within 3 weeks to 3 months. Conclusions: The retromandibular transparotid approach provides good exposure and facilitates accurate reduction and fixation of the subcondylar fragment with positive outcomes, good cosmetic results, and rare major complications. Most facial nerve injuries are transient in nature after this approach. A Synthes 2-mm titanium single mini-plate (West Chester, PA) provides stable results after fixation. © 2016 American Association of Oral and Maxillofacial Surgeons. Source

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