Analysis of Panoramic Images of Orthodontic Patients

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 1750-1754
Author(s):  
Indra G ◽  
Maragathavalli G ◽  
Deepika Rajendran
Keyword(s):  
Bone Loss ◽  
Periodontal Ligament ◽  
Incidental Findings ◽  
Orthodontic Treatment ◽  
Common Finding ◽  
Panoramic Radiographs ◽  
Panoramic Imaging ◽  
Radiographic Technique ◽  
Panoramic Images ◽  
Orthodontic Patients

Panoramic imaging is the most widely requested radiographic technique in dentistry. In orthodontics, the clinical and radiographic examinations are routinely carried out along with dental and skeletal photographs as a part of diagnosis and treatment planning. The evaluation of radiographs of patients after orthodontic treatment is important in understanding the possible changes that tend to occur post-treatment. This study aims to analyze the incidental findings present in the radiographs of patients who previously underwent orthodontic treatment. A total of 30 patients (18 females; 12 male) were randomly selected from the Orthodontic clinic at the Department of Orthodontics, Saveetha Dental College and Hospital, Chennai. Two independent examiners analyzed the panoramic radiographs for anomalies and pathologies. The result showed the most common finding, which was periodontal pathology (Generalised bone loss, widening of periodontal ligament space, or both, loss of lamina dura) with a prevalence of 36.7%. All the patients taken into the study had at least one anomaly. In conclusion, the relevant findings were observed in all the radiographs & special care should be taken while evaluating them to diagnose alterations that may require other dental treatments.

scholarly journals Radiographic Detection of the Relationship Between Tonsilloliths and Dental Plaque-Related Pathologies in a Series of Digital Panoramic Radiographs

2021 ◽  
Author(s):  
Ezgi Gurbuz ◽  
Mujgan Gungor ◽  
Hasan Hatipoglu
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Dental Plaque ◽  
Panoramic Radiograph ◽  
Apical Periodontitis ◽  
Panoramic Radiographs ◽  
Significant Difference ◽  
Panoramic Images ◽  
The Relationship ◽  
Bone Height

Objective: The purpose of this study was to analyse the prevalence of tonsilloliths and to determine radiographically whether there is a relationship between tonsilloliths and dental plaque-related pathologies in a series of digital panoramic radiographs. Materials and Methods: This retrospective study included digital panoramic radiographs of 859 patients admitted for a routine dental examination. The panoramic images were examined for both the presence of tonsilloliths and the number of decayed, missing, restored tooth and apical periodontitis. Periodontal bone loss was also measured in thirds of optimal bone height according to the root length and finally a percentage of bone loss was obtained for each panoramic radiograph evaluated. Results: Tonsilloliths were observed in 141 (16.4%) of all individuals. While there was no significant difference regarding the number of decayed teeth and restored teeth between tonsillolith cases (TT) and cases without tonsillolith (TC), the number of missing teeth and apical periodontitis in TT was significantly higher than TC (p: 0.004, p: 0.030, respectively). There was a significant difference between the groups in terms of the mean percentage of bone loss (p: 0.001; p< 0.05). In addition, cases showing bone loss between one-third and two-thirds of the optimal bone height in the TT group (52.5%) were significantly higher than those in TC (45.5%) (p: 0.035; p< 0.05). Conclusion: The relationship between dental plaque-related pathologies and tonsilloliths, observed in this retrospective study, should be confirmed by Computed Tomography studies and randomized, prospective, clinical trials conducted in a multidisciplinary manner.

scholarly journals The Impact of Orthodontic Bands on the Marginal Periodontium of Maxillary First Molars: A Retrospective Cross-Sectional Radiographic Analysis

2018 ◽  
Vol 12 (1) ◽  
pp. 312-321
Author(s):  
Sabine Teubner ◽  
Patrick R. Schmidlin ◽  
Giorgio Menghini ◽  
Thomas Attin ◽  
Stefan Baumgartner
Keyword(s):  
Bone Loss ◽  
Periodontal Ligament ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Test Group ◽  
Alveolar Bone Loss ◽  
Tooth Surface ◽  
Cross Sectional ◽  
Bone Level ◽  
The Right

Aim: Available information on the effect of orthodontic treatment on crestal alveolar bone levels measured in radiographs is contradictory. The aim of this study was to compare the alveolar bone level and periodontal ligament space of banded upper first molars to untreated controls. Materials and Methods: This retrospective cross-sectional radiographic study investigated alveolar bone levels of upper first molars of an orthodontic test group and an untreated control group of comparable age (15-16.25 years), using existing bitewing radiographs. Eighty-six individuals were included in each group. Three parameters were measured mesially and distally on both sides of the patient as follows: I) Alveolar Bone Level (ABL): measured as the distance between the cemento-enamel junction and the alveolar crest, II) the Periodontal Ligament Space (PLS): measured as the most coronal distance between the alveolar crest and the tooth surface, and III) angle between the lines (alveolar crests mesial and distal) and (cemento-enamel junction mesial and distal). Results: The mean duration of the orthodontic treatment in the test group was 2.5 years. The periodontal ligament space was statistically significantly wider on mesial areas of right molars (mean 0.2 mm, p<0.01), but there was no statistically significant difference found in the three other areas (distal part of the right molar, mesial and distal parts of the left molar). There was a statistically significant mean alveolar bone loss in the right and left mesial areas, respectively accounting for 0.3 mm (p<0.001) and 0.2 mm (p<0.01). No statistically significant alveolar bone loss was measured on the distal surfaces of the upper molars. The angle was wider on both sides for the test group (right p<0.001 and left p<0.05). Conclusions: A significant alveolar bone loss on the mesial tooth surface of upper first molars after orthodontic treatment was found with concurrent different levelling angles in the test group. On all other sites, no statistically significant changes were found. There was some minimal statistical significant alveolar bone loss after finishing treatment in patients who had orthodontic bands placed on their maxillary 1st molars, but no clinical significance was found.

scholarly journals Prevalence of Congenitally Missing Lateral Incisors and Peg Laterals in Patients Receiving Orthodontic Treatment

2020 ◽  
Vol 10 (1) ◽  
pp. 17-20
Author(s):  
Radha Baral ◽  
Dipshikha Bajracharya ◽  
Bidhata Ojha ◽  
Ganesh Silwal
Keyword(s):  
Orthodontic Treatment ◽  
Diagnostic Procedure ◽  
Lateral Incisor ◽  
Cross Sectional ◽  
Male And Female ◽  
Panoramic Radiographs ◽  
Orthodontic Patients ◽  
Maxillary Lateral Incisor ◽  
Congenitally Missing ◽  
Missing Tooth

Introduction: Maxillary lateral incisor is a common congenitally missing tooth in the oral cavity. Maxillary lateral incisor is also the most common varying tooth in form than any other tooth. The objective of the study is to estimate the prevalence of congenitally missing maxillary lateral incisors and peg laterals in patients receiving orthodontic treatment. Materials & Method: This is a cross sectional retrospective study carried out among 204 orthodontic patients. Panoramic radiographs taken during the diagnostic procedure of orthodontic treatment was used to confirm the presence or absence of lateral incisors. The presence of peg laterals was determined by dental casts. Result: Prevalence of missing maxillary lateral incisors and peg laterals was found 2.5% and 3.9% respectively. Prevalence of missing lateral in male was 5.7% while among female no missing laterals were observed. Prevalence of peg laterals in male and female was 1.1% and 6% respectively. Among the missing lateral incisors, prevalence of bilaterally missing lateral incisors was 60% while prevalence of both right and left unilateral missing laterals was 20%. Among the peg laterals, bilateral peg laterals were present in 50% patients, followed by left unilateral 37.5% and right unilateral 12.5% peg laterals. Conclusion: The present study shows higher prevalence of peg laterals than missing lateral incisors. Prevalence of missing lateral incisors was higher in male and prevalence of peg laterals was higher in female. Prevalence of bilaterally missing laterals and bilateral peg laterals was higher than unilateral presentation.

scholarly journals Level of Knowledge, Understanding, and Impact of the COVID-19 Pandemic on Continuing Fixed Orthodontic Treatment in Adults: A Questionnaire Study

2021 ◽  
Vol 55 (2) ◽  
pp. 184-189
Author(s):  
RSVM Raghu Ram ◽  
I Ranganayakulu ◽  
K Anand Viswanadh ◽  
TSS Manikanta Kumar ◽  
C Viswa Chaitanya ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Adult Patients ◽  
Missed Appointments ◽  
Clinical Area ◽  
Cross Sectional ◽  
Orthodontic Patients ◽  
Level Of Knowledge ◽  
Orthodontic Treatment In Adults ◽  
Status Disclosure ◽  
Descriptive Survey

Objectives: To evaluate the level of knowledge, understanding, and impact of the coronavirus disease 2019 (COVID-19) pandemic on adult patients regarding their ongoing fixed orthodontic treatment. Subjects and Methods: A cross-sectional and descriptive survey was conducted on 108 adult patients undergoing fixed orthodontic treatment at GSL Dental College (GSLDC), India. All the candidates were aged 18 years and above, who were in lockdown due to the COVID-19 pandemic and devoid of treatment. Results: Among the patients 43.5% were male and 56.5% were female; 22.3% were not at all aware that the COVID-19 virus spreads quickly in a dental setup; 64.8% were definitely willing for their status disclosure and to undergo pretreatment screening; 71.3% were definitely willing to adhere to strict appointment timings for adequate sanitization of the clinical area; 60.2% thought that missed appointments during the COVID-19 pandemic would prolong their overall orthodontic treatment and affect their treatment outcome; and 51.9% were financially affected due to the pandemic. Conclusions: Not all adult orthodontic patients were in knowledge of COVID-19 cross infection. The majority were in a state of understanding and willing to follow infection-eradicating protocols. Patients’ view on overall orthodontic treatment was altered due to the psychological and financial impact of COVID-19.

scholarly journals The perception of COVID-19 among Italian dental patients: an orthodontic point of view

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Stefano Martina ◽  
Alessandra Amato ◽  
Paolo Faccioni ◽  
Alfredo Iandolo ◽  
Massimo Amato ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Point Of View ◽  
Dental Practice ◽  
Online Questionnaire ◽  
Chi Square ◽  
Dental Patients ◽  
Patient Health ◽  
Chi Square Test ◽  
Orthodontic Patients ◽  
Level Of Significance

Abstract Background The present study aimed to investigate the patients’ perception of the dental practice during the COVID-19 outbreak, and whether the pandemic will affect the attendance of orthodontic patients at the dental practice. An online questionnaire, including the Patient Health Questionnaire-4 (PHQ-4), was submitted to Italian dental patients with items about their perceived risks when going to the dentist, concerns about continuing orthodontic treatment, and the onset of temporomandibular disorders (TMD). Data were analyzed with a chi-square test and logistic regression analysis. The level of significance was set at P < 0.05. Results A total of 1566 subjects completed the survey, including 486 who were under orthodontic treatment or who had a child in orthodontic treatment. A total of 866 participants (55.3%) thought the risk of contracting the COVID-19 infection was higher in a dental practice; this perception was associated with gender (women more than man), age (over 60 years old) and high levels of distress (P<0.001). However, 894 patients (57.1%) felt comfortable going back to the dentist. Most of the orthodontic patients (84%) would continue their treatment. After the lockdown, there was a slight increase in the frequency of TMD pain (356 versus 334). Conclusions Most of the participants believed that the dental practice is a place at greater risk of contracting COVID-19, even if they continue to go to the dentist. Gender, age, and the level of distress were associated with the increase in the fear of going to the dentist due to COVID-19. Because of the pandemic, 16% of patients undergoing orthodontic treatment would not return to the dental practice to continue their orthodontic treatment after the lockdown. The prevalence of TMD pain in the population increased due to the pandemic.

scholarly journals Evaluation of Panoramic Radiographs in Relation to the Mandibular Third Molar and to Incidental Findings in an Adult Population

2020 ◽  
Author(s):  
Josefine Cederhag ◽  
Nina Lundegren ◽  
Per Alstergren ◽  
Xie-Qi Shi ◽  
Kristina Hellén-Halme
Keyword(s):  
Incidental Findings ◽  
Adult Population ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Patient Positioning ◽  
Vertical Position ◽  
Surgical Removal ◽  
Third Molars ◽  
Panoramic Radiographs ◽  
The Third

Abstract Objectives The aim was to evaluate the characteristics of the mandibular third molars, especially in relation to the inferior alveolar nerve. Further aims were to investigate incidental findings in panoramic radiographs in an adult population, and to investigate image quality related to patient positioning. Materials and Methods From a previous study with 451 randomly selected adult participants who lived in Sweden, 442 panoramic radiographs from four dental public health clinics were used. The third molars’ characteristics and relation to inferior alveolar nerve were evaluated. Incidental findings and patient positioning were recorded. Statistical Analysis Frequency analysis was used to investigate the occurrence of all findings and their possible interconnections. Whether the patients’ age or gender had an impact or not was also analyzed. Results The third molars were erupted in vertical position among 73% regardless of age. When retained or semi-retained, they were most commonly in mesioangular positions. The inferior alveolar nerve was located inferior to the roots in 52%, whereas an overlapped position was most common if the third molar was retained (90%), semi-retained (83%) or the age was less than 30 years (66%). Common incidental findings were apical radiolucencies, idiopathic osteosclerosis, and tooth fragments. Suboptimal patient positioning was found in one-third of the radiographs. Conclusions Panoramic radiography is a useful method to evaluate third molar prior to surgical removal and may be the only image required. Most incidental findings on panoramic radiographs does not seem to require any further odontological management.

Changes in the Complexity of Orthodontic Treatment for Patients Referred to a Teaching Hospital

1988 ◽  
Vol 15 (1) ◽  
pp. 27-32 ◽  
Author(s):  
C. D. Stephens ◽  
N. W. Harradine
Keyword(s):  
General Practitioner ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Further Training ◽  
Fixed Appliance ◽  
Dental Hospital ◽  
Orthodontic Patients ◽  
Specialist Treatment ◽  
Fixed Appliances ◽  
Removable Appliance

The records of 200 orthodontic patients accepted for treatment by the Orthodontic Department of the Bristol Dental Hospital in 1977 were compared with 200 taken on in 1985 in order to determine whether there had been any change in the proportion of referred cases requiring more complex procedures. Within each sample, cases were categorized as follows: (a) suitable for removable appliance treatment by an undergraduate or general practitioner; (b) requiring simple one arch fixed appliance treatment such as might he attempted by a general practitioner after a period of further training; (c) needing specialist treatment such as full multibracketed fixed appliances or orthognathic surgery. It was found that there had been no change in the proportions of simple and complex cases referred during the 8-year period although the proportion of patients now receiving complex treatment had increased greatly. Possible explanations and implications are discussed.

Artificial intelligence system for automatic deciduous tooth detection and numbering in panoramic radiographs

2021 ◽  
pp. 20200172
Author(s):  
Münevver Coruh Kılıc ◽  
Ibrahim Sevki Bayrakdar ◽  
Özer Çelik ◽  
Elif Bilgir ◽  
Kaan Orhan ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Deep Learning ◽  
Confusion Matrix ◽  
Forensic Identification ◽  
Deciduous Teeth ◽  
Time Saving ◽  
Panoramic Radiographs ◽  
Intelligence System ◽  
Promising Tool ◽  
Panoramic Images

Objective: This study evaluated the use of a deep-learning approach for automated detection and numbering of deciduous teeth in children as depicted on panoramic radiographs. Methods and materials: An artificial intelligence (AI) algorithm (CranioCatch, Eskisehir-Turkey) using Faster R-CNN Inception v2 (COCO) models were developed to automatically detect and number deciduous teeth as seen on pediatric panoramic radiographs. The algorithm was trained and tested on a total of 421 panoramic images. System performance was assessed using a confusion matrix. Results: The AI system was successful in detecting and numbering the deciduous teeth of children as depicted on panoramic radiographs. The sensitivity and precision rates were high. The estimated sensitivity, precision, and F1 score were 0.9804, 0.9571, and 0.9686, respectively. Conclusion: Deep-learning-based AI models are a promising tool for the automated charting of panoramic dental radiographs from children. In addition to serving as a time-saving measure and an aid to clinicians, AI plays a valuable role in forensic identification.

Mapping of a multilayer panoramic radiography device

2021 ◽  
Author(s):  
Luciano Augusto Cano Martins ◽  
Eduarda Helena Leandro Nascimento ◽  
Hugo Gaêta-Araujo ◽  
Matheus L Oliveira ◽  
Deborah Queiroz Freitas
Keyword(s):  
Exposure Time ◽  
Panoramic Radiography ◽  
Anterior Region ◽  
Panoramic Image ◽  
Panoramic Radiographs ◽  
Acrylic Plate ◽  
Panoramic Images ◽  
Maxilla And Mandible ◽  
Distortion Rate

Objective: To map the shape, location, and thickness of the focal trough of a panoramic radiography device with a multilayer imaging program. Methods: An acrylic plate (148 × 148 × 3 mm) containing 1156 holes distributed in a matrix of 34 × 34 rows was placed in the OP300 Maxio at the levels of the maxilla and mandible. 20 metal spheres (3.5 mm in diameter) were placed on the holes of the plate under 15 different arrangements and panoramic images were acquired for each arrangement at 66 kV, 8 mA, and an exposure time of 16 s. The resulting panoramic radiographs from the five image layers were exported, the horizontal and vertical dimensions of the metal spheres were measured in all images using the Image J software, and the magnification and distortion rates of the spheres were calculated. All metal spheres presenting a magnification rate lower than 30% in both vertical and horizontal dimensions and a distortion rate lower than 10% were considered to map the focal troughs of each of the five image layers. Results: All panoramic image layers had a curved shape ranging from 39° to 51° for both dental arches and varied in position and thickness. The anterior region of maxilla was anteriorly displaced when compared to the anterior region of the mandible for all layers. Image layers are thicker at the level of the mandible than those at the level of the maxilla; also, inner layers were thinner and outer layers were thicker. Conclusion All image layers in the studied panoramic radiography device had a curved shape and varied in position and thickness. The anterior region of maxilla was anteriorly displaced when compared to that of the mandible for all layers.

Prevalence of Dental Fear and Anxiety among Orthodontic patients visiting Nobel Medical College

2021 ◽  
Vol 11 (1) ◽  
pp. 3-6
Author(s):  
Anand Acharya ◽  
Bhushan Bhattarai ◽  
Nidhi Giri ◽  
Jitendra Singh ◽  
Tarakant Bhagat
Keyword(s):  
Orthodontic Treatment ◽  
Dental Anxiety ◽  
College Teaching ◽  
Dental Procedure ◽  
Actual Treatment ◽  
Medical College ◽  
Dental Patients ◽  
Orthodontic Patients ◽  
Response To Stress ◽  
Fear And Anxiety

Introduction: Anxiety is the state of feeling nervous or worried that something bad is going to happen. Dental anxiety is defined as a patient’s response to stress that is associated with a dental procedure. The aim of our study is to investigate the anxiety status of dental patients visiting Orthodontic department at Nobel Medical College Teaching Hospital, Biratnagar. Materials and Method: Total 80 ongoing orthodontic patients (M =21 F=59) who completed modified Dental Anxiety Scale questionnaire were included in the study. Result: Majority of patients (65%) had moderate anxiety where as 25% had mild anxiety and around 9% had severe to extreme anxiety. Patients’ age and education level had significant association with the level of dental anxiety. Conclusion: Dental anxiety in orthodontic patients is unavoidable but needs appropriate counseling. Orthodontist’s role is crucial in bridging the gap between patients’ perception towards orthodontic treatment and the actual treatment.

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