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https://www.readbyqxmd.com/read/30034158/prevalence-of-bifid-mandibular-canal-amongst-indian-population-a-radiographic-study
#1
Tushar Manohar Rothe, Prachur Kumar, Navin Shah, Rashmi Venkatesh, Vaishnavee Vassandacoumara, Amit Mahajan
Background: Bifid mandibular canal (BMC) is a normal anatomical variation and has been less studied in the Indian population. This study was aimed at estimating the prevalence of BMC amongst Indian population. Materials and Methods: The study sample comprised of 5800 digital orthopantomograms (OPGs) which were from four zones of India, i.e. North India, South India, East India, and West India (1700 OPGs from each zone). Any pathological or normal digital OPGs having age between 15 and 80 years in the format of jepg or jpg image were included, while OPGs of operated case of hemimandibulectomy and blurred in which mandibular canal was not traceable were excluded from this study...
September 2018: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29963509/assessment-of-the-validity-of-orthopantomographs-in-the-evaluation-of-mandibular-steepness-in-libya
#2
Tayisir Ganeiber, Iman Bugaighis
AIM: The value of gonial angle indicates the range of steepness as well as the direction of mandibular growth. Exact measurement of right (R) and left (L) gonial angles from a lateral cephalometric radiograph is challenging due to the superimposition of both sides. Thus, the aim of the present study was to assess the potential of determining accurate measurement of R and L gonial angles by employing orthopantomographs (OPGs) and to compare the findings with the measurements obtained from lateral cephalometric radiographs...
2018: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/29889832/periodontal-disease-influences-osteoclastogenic-bone-markers-in-subjects-with-and-without-rheumatoid-arthritis
#3
Jeneen Panezai, Ambereen Ghaffar, Mohammad Altamash, Per-Erik Engström, Anders Larsson
BACKGROUND: Periodontal disease (PD) and rheumatoid arthritis (RA) are bone pathologies mediated through immuno-inflammatory mechanisms. The aim of this study was to investigate the serum markers osteopontin (OPN), tumor necrosis factor receptors 1 (TNFR1) and 2 (TNFR2) receptor activator of nuclear factor-kappa B ligand (RANKL) and RANKL/ osteoprotegerin (OPG) ratio and compare them in PD and RA groups. MATERIALS & METHODS: RA (with PD = 19 and without PD = 19), PD (n = 38) and 14 healthy subjects underwent bleeding on probing (BOP) and probing pocket depth (PPD) measurement...
2018: PloS One
https://www.readbyqxmd.com/read/29284944/comparison-of-orthopantomogram-and-lateral-cephalogram-for-mandibular-measurements
#4
S Saravana Kumar, V Thailavathy, Daya Srinivasan, Divya Loganathan, J Yamini
Aim: The aim of the present study is to clarify the possible application of orthopantomogram (OPG) for evaluating craniofacial specifications such as angular and linear measurements of the mandible by comparing with lateral cephalogram. Materials and Methods: OPG and lateral cephalogram were taken from 100 patients of age group 16-35 years from Chettinad Dental College and Research Institute. Linear measurements (body length and ramus height) and angular measurement (gonial angle) were assessed both in lateral cephalogram and OPG...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29059942/characterization-of-dental-pathologies-using-digital-panoramic-x-ray-images-based-on-texture-analysis
#5
Divya K Veena, Anand Jatti, Revan Joshi, Krishna S Deepu
Dental caries and the cysts of jaws are frequently occurring pathologies encountered in a dental practice. Imaging of these dental anomalies is done with radiographic examination. Panoramic radiography/ Orthopantomography (OPG) is a common modality to screen patients with an advantage of ease of imaging and reduced exposure to patients. The panoramic images obtained with this equipment are exploited by noise embedded during its acquisition making the detection of this dental caries difficult. Detection and characterization of dental caries and various other maxilla-facial pathologies can be achieved by the application of computer aided image processing algorithms applied on dental panoramic images...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28816186/reliability-of-orthopantomography-and-cone-beam-computed-tomography-in-presurgical-implant-planning-a-clinical-study
#6
Jasjit Sahota, Aditya Bhatia, Megha Gupta, Vishal Singh, Juhi Soni, Richa Soni
BACKGROUND: Preoperative diagnosis and treatment planning are fundamental requirements to ensure success rate of implant. Cone-beam computed tomography (CBCT) provides all three dimensions and has been proved as a tool for radiology, especially in the success of implant. This study was conducted to evaluate the reliability of orthopantomography (OPG) and CBCT in presurgical implant planning. MATERIALS AND METHODS: The study was conducted on 110 partially or completely edentulous adult patients (male 50 and female 60)...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28228135/comparison-of-digital-panoramic-radiography-versus-cone-beam-computerized-tomography-for-measuring-alveolar-bone
#7
COMPARATIVE STUDY
Zunan Tang, Xianchu Liu, Kejia Chen
BACKGROUND: Cone beam computerized tomography (CBCT) has been widely used in dental implanting. However, the local hospitals usually don't have access to CBCT due to the cost and medical investment, especially in West of China. The doctors in local hospitals have to make reasonable dental planting using orthopantomography (OPG) to reduce risks. Therefore, it is clinically meaningful to determine the magnification rate of OPG to obtain correct diagnosis. This study investigated the magnification rate of OPG in measuring different maxillofacial loci compared with CBCT...
February 22, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28217540/correlating-the-clinical-assessment-of-impacted-mandibular-third-molars-with-panoramic-radiograph-and-intraoral-periapical-radiograph
#8
P Vani Priya, Fazil A Nasyam, M Ramprasad, Narendra V Penumatsa, Syed Akifuddin, Sandeep
AIMS AND OBJECTIVES: This study was conducted to compare the clinical assessment of impacted third molars of mandible with panaromic radiograph (OPG) and intraoral periapical radiograph (IOPA) and to assess the efficacy of IOPA and. Moreover, we corroborated the OPG and IOPA findings of impacted mandiblar third molar root apex to inferior alveolar canal. MATERIALS AND METHODS: A total of 200 patients with pericoronitis were examined who were indicated for surgical extraction, among which 50 patients were selected for the study...
December 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28090184/radiographic-evaluation-of-the-status-of-third-molars-in-sriganganagar-population-a-digital-panoramic-study
#9
Sharry Goyal, Pradhuman Verma, Seetharamaiha Sunder Raj
BACKGROUND: Third molar (M3) agenesis and impaction are associated with evolution, changed dietary habits, and human jaw growth. The aim of the study was to radiographically evaluate the prevalence of M3s agenesis, impacted M3s with different impaction patterns, and the approximation of Inferior Dental Canal (IDC) with impacted mandibular M3s roots among the Sriganganagar population. METHODS: The study included 700 randomly selected subjects from OPD with an age range of 25-45 years...
November 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/27965508/evaluation-of-osseointegration-in-implants-using-digital-orthopantomogram-and-cone-beam-computed-tomography
#10
Aastha Chopra, Amit A Mhapuskar, Swati Marathe, Shams U Nisa, Shameeka Thopte, Rashmi Saddiwal
INTRODUCTION: Accurate assessment of osseointegration in dental implants requires precise radiographic visualization of pathologic conditions as well as anatomical structures. The present study aimed to evaluate the formation of bony tissue (osseointegration) using digital orthopantomogram (OPG) and cone beam computed tomography (CBCT) immediately after implant insertion (within 7 days) and 3 months postinsertion. MATERIALS AND METHODS: Twenty single-implant sites on mandi-bular posterior regions were selected on patients irrespective of their gender...
November 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/26747662/radiation-dose-of-cone-beam-computed-tomography-compared-to-conventional-radiographs-in-orthodontics
#11
COMPARATIVE STUDY
Luca Signorelli, Raphael Patcas, Timo Peltomäki, Marc Schätzle
OBJECTIVES: The aim of this study was to determine radiation doses of different cone-beam computed tomography (CBCT) scan modes in comparison to a conventional set of orthodontic radiographs (COR) by means of phantom dosimetry. MATERIALS AND METHODS: Thermoluminescent dosimeter (TLD) chips (3 × 1 × 1 mm) were used on an adult male tissue-equivalent phantom to record the distribution of the absorbed radiation dose. Three different scanning modes (i.e., portrait, normal landscape, and fast scan landscape) were compared to CORs [i...
January 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/26669654/radiographic-diagnosis-of-periapical-status-and-quality-of-root-canal-fillings-in-a-saudi-arabian-subpopulation
#12
Khalid Alfouzan, Jagan Kumar Baskaradoss, Amrita Geevarghese, Mohammed Alzahrani, Khalid Alhezaimi
PURPOSE: To assess the prevalence of apical periodontitis (AP), as determined by orthopantomograms (OPGs), and its correlation with the quality of root fillings and coronal restorations. MATERIALS AND METHODS: This cross-sectional study evaluated a random sample of 193 patients--112 (58%) females and 81 (42%) males--who presented as new patients at the Division of Endodontics. Digital OPGs were independently examined by two reliability-calibrated endodontists. The total number of teeth present, the location of the root canalfilled teeth, and the presence or absence of AP were recorded for each radiograph...
2016: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/26501016/prevalence-and-difficulty-index-associated-with-the-3-rd-mandibular-molar-impaction-among-malaysian-ethnicities-a-clinico-radiographic-study
#13
Haydar Majeed Mahdey, Shelly Arora, Myint Wei
BACKGROUND: The mandibular third molars (3Mms) are the most common impacted teeth in the human dentition and their prevalence ranges from 27-68.8% in various parts of the world. The assessment of surgical difficulty of 3Mms extraction helps in better formulation of treatment plan by minimizing postoperative complications. OBJECTIVES: The aim of this retrospective study was to investigate the prevalence and pattern of 3Mm impaction in patients between 20-44-year-old among Malaysian's ethnicities attending Oral Health Center/ SEGi University, Faculty of dentistry...
September 2015: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26167057/prediction-of-osteoporosis-using-dental-radiographs-and-age-in-females
#14
Guduba Vijay, Parita K Chitroda, Girish Katti, Syed Shahbaz, Irfan Baba, Bhuvaneshwari
AIMS AND OBJECTIVES: To evaluate the role of dental radiograph as a screening tool for diagnosis of osteoporosis in females. MATERIALS AND METHODS: In the present study, 50 women between the age group of 40-60 were recruited, and patients with systemic disorder and taking calcium supplements, and women who are not willing for investigation were excluded. Their detailed medical history was obtained and dental radiographs were made, bone mineral density was measured at left radial bone using ultrasound...
April 2015: Journal of Mid-life Health
https://www.readbyqxmd.com/read/26093127/dental-age-estimation-of-living-persons-comparison-of-mri-with-opg
#15
COMPARATIVE STUDY
Pia Baumann, Thomas Widek, Heiko Merkens, Julian Boldt, Andreas Petrovic, Martin Urschler, Barbara Kirnbauer, Norbert Jakse, Eva Scheurer
The need for forensic age estimations in living adolescents is high mainly due to migration, particularly from countries where birth dates are not reliably documented. To date, the gold standard of dental age estimation is the evaluation of the mineralization and eruption stages of the third molars using an orthopantomogram (OPG). However, the use of ionizing radiation without medical indication is ethically controversial and not permitted in many countries. Thus, the aim of this study was to investigate if dental MRI can be used for the assessment of dental age with equally good results as when using an OPG...
August 2015: Forensic Science International
https://www.readbyqxmd.com/read/25954705/comparative-evalution-of-g-bone-hydroxyapatite-and-g-graft-hydroxyapatite-with-collagen-as-bone-graft-material-in-mandibular-iii-molar-extraction-socket
#16
Vijayendra Panday, Vivekananda Upadhyaya, Vikas Berwal, Kapil Jain, Nupur Sah, Partha Sarathi, Pushp Chander Swami
BACKGROUND: Bone grafting is a dynamic phenomenon. It is a surgical procedure that replaces missing bone with material either from patient's own body, or, an artificial, synthetic or natural substitute. A successful bone graft when applied, heals, becomes incorporated, re-vascularises and eventually assumes the form desired. AIMS AND OBJECTIVE: The main purpose of this present study was to radiologically assess and compare the regenerative potential of hydroxyapatite with Collagen (G-Graft) and hydroxyapatite (G-Bone) and to evaluate the clinical usefulness of these materials to enhance bone healing in third molar extraction sites through bone formation...
March 2015: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/25934028/measurements-in-mandibular-pantomographic-x-rays-and-relation-to-skeletal-mineral-densitometric-values
#17
Saumyendra V Singh, Himanshi Aggarwal, Vaibhav Gupta, Pradeep Kumar, Arvind Tripathi
The gold standard diagnostic modality for osteoporosis is dual-energy X-ray absorptiometry (DXA). But it is expensive and often unavailable. Studies have demonstrated that decreased bone mineral density (BMD) may affect mandibular bone morphometrically on radiographs. Such studies are rare in the Indian population. This study was conducted to evaluate correlation between radiomorphometric markers on digital orthopantomograms (OPGs) and BMD measurements done by DXA in an Indian population. A total of 344 subjects aged 45 years or above, who visited a dental outpatient department over a period of 6 years were included in the study after obtaining ethical committee approval and informed consent...
April 2016: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/25810836/rotational-panoramic-radiographs-unusual-triple-images
#18
Shakeel-Ahmed Valai-Kasim, Nathamuni-Rengarajan Krishnaswamy, Biju Tom, Rooban Thavarajah
Currently clinicians advice rotational panoramic radiography (RPR) for preliminary investigation. Despite few inherent limitations, rotational panoramic radiography still remains the diagnostic tool of choice. Abnormal structures such as a supernumerary tooth or a device falling within the certain central regions in conventional RPR images may mislead the clinicians towards an inaccurate diagnosis by producing multiple ghost images. Such cases must be treated with circumspect, and apart from RPR, additional imaging modalities need be employed to provide a judicious interpretation of the clinical situation...
February 2015: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/25703748/association-between-changes-in-the-angle-of-mandible-and-reduced-bone-mineral-density
#19
COMPARATIVE STUDY
Dur-e-Shahwar Rehman, Surriyya Sarwath, Soofia Nigar
OBJECTIVE: To establish an association between the angle of mandible on an orthopantomogram (OPG) with reduced bone mineral density of femoral neck and spine on Dual Energy X-ray Absorptiometry (DXA) scan. STUDY DESIGN: Cross-sectional study. PLACE AND DURATION OF STUDY: Institute of Basic Medical Sciences (IBMS), Dow University of Health Sciences (DUHS), Karachi, from December 2011 to July 2012. METHODOLOGY: Female subjects between 25 and 85 years of age were divided into premenopausal (Group-I) and postmenopausal (Group II) groups...
February 2015: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/25565740/comparison-of-gonial-angle-determination-from-cephalograms-and-orthopantomogram
#20
Mandeep Kaur Bhullar, Amandeep Singh Uppal, Gulsheen Kaur Kochhar, Sanjay Chachra, Anuraj Singh Kochhar
INTRODUCTION: Gonial angle is an important parameter of the craniofacial complex giving an indication about the vertical parameters and symmetry of the facial skeleton. Both orthopantomogram (OPG) and lateral cephalograms can be used for the measurement of gonial angle. Because of the superimpositions seen on lateral cephalograms, reliable measurement of the gonial angle becomes difficult. The aim of the present study is to check the possible application and reliability of OPG for gonial angle determination by clarifying whether there is any significant difference between the determination of gonial angle from OPG and cephalogram...
July 2014: Indian Journal of Dentistry
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