scholarly journals Age Estimation Based on Pulp–Tooth Volume Ratio of Anterior Teeth in Cone-Beam Computed Tomographic Images in a Selected Population: A Cross-Sectional Study

2021 ◽  
Vol 11 (21) ◽  
pp. 9984
Author(s):  
Mehrdad Abdinian ◽  
Mehdi Katiraei ◽  
Hosein Zahedi ◽  
Carlo Rengo ◽  
Parisa Soltani ◽  
...  
Keyword(s):  
Age Estimation ◽  
Volume Ratio ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Chronological Age ◽  
Tooth Pulp ◽  
Sectional Study ◽  
Cross Sectional ◽  
Computed Tomographic ◽  
Anterior Teeth

The present study aimed to investigate the correlation between chronological age and pulp–tooth volume ratio in anterior teeth using cone beam computed tomographic (CBCT) images and provide equations for age estimation based on pulp–tooth volume ratio. In this cross-sectional study, CBCT images of 312 anterior teeth of the maxilla and mandible were examineαd. The chronological age and the sex of the patients were recorded. Tooth volume and pulp volume of the anterior teeth were measured using Mimics software, and then tooth–pulp volume ratio was calculated. Statistical analysis of data was performed using chi-square test, independent T-test, Pearson’s correlation, and linear regression (α = 0.05). Finally, equations were made based on the results of the regression analysis for age estimation in general and for males and females. The age of the subjects ranged between 16 and 69 years (mean 40.6 ± 12.74). The pulp–tooth volume ratio of the maxillary teeth was generally higher than the mandibular teeth. A significant inverse relationship between age and pulp–tooth volume ratio was observed for all anterior teeth. (p < 0.05). The strongest correlation between age and pulp–tooth volume ratio was reported for mandibular central incisor (r = −0.58, p < 0.001) and the weakest was for mandibular lateral incisor (r = −0.36, p = 0.012). Age estimation was most accurate among females using the maxillary central incisors (p < 0.001) and among males using the mandibular central incisors and maxillary canines (p = 0.003). Pulp–tooth volume ratio of mandibular central incisors, maxillary lateral incisors, and maxillary canines in males and maxillary and mandibular central incisors, maxillary lateral incisors, and maxillary and mandibular canines in females can be used for age estimation.

scholarly journals Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study

2021 ◽  
Author(s):  
Cristiane Martins Rodrigues Bernardes ◽  
Luiz Eduardo Gregoris Rabelo ◽  
Cyntia Rodrigues DE Araújo Estrela ◽  
Orlando Aguirre Guedes ◽  
Brunno Santos DE Freitas Silva ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Morphology ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
P Value ◽  
Sectional Study ◽  
Cross Sectional ◽  
Anterior Teeth ◽  
Maxillary Incisors

Introduction: The prevalence of Apical Root Resorption (ARR) after orthodontic treatment is high. It is associated with several factors, such as tooth group, type and duration of treatment, applied force and root morphology. Aim: To evaluate the apical root morphology of maxillary incisors in a Brazilian subpopulation using Cone Beam Computed Tomography (CBCT) images. Materials and Methods: In this retrospective and cross-sectional study, 400 maxillary incisors from 167 patients registered in the data base of Dental Radiology Clinics between January 2012 and April 2017 were analysed. The apical root configuration was verified by navigating 0.1 mm/0.1 mm, in the three planes, axial, coronal, and sagittal sections on CBCT images, from the root canal entrance to the apical foramen, as well as from the apical direction to the crown. The standard reference for apical root form corresponded to the long axis of the tooth. The root forms and their frequency were characterised according to the classification proposed by Levander and Malmgren (1988). The qualitative variables were analysed by the Chi-square test. The level of significance was p-value <0.05. Results: A total of 400 maxillary anterior teeth (central and lateral incisors; n=200 each) from 167 patients (101 women; mean age was 41.8±16.20 years) were analysed. The most common apical root form presented in the central incisors was the blunt root {99 (49.5%)}, followed by pipette-shaped root {69 (34.5%)}. The less frequent was the short root {13 (6.5%)} (p-value <0.001). In the lateral incisors, the highest frequency presented was lacerated root {111 (55.5%)}, followed by blunt root {47 (23.5%)}, and pipette- shaped root {37 (18.5%)} (p-value <0.001). Conclusion: Maxillary central incisors had a higher frequency of rhomboid (blunt) root morphology, while lateral incisors had a higher frequency of curved (lacerated) root form.

scholarly journals Bone quality and quantity of the mandibular symphyseal region in autogenous bone grafting using cone-beam computed tomography: a cross-sectional study

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Yaser Safi ◽  
Reza Amid ◽  
Mahdi Kadkhodazadeh ◽  
Hamed Mortazavi ◽  
Mohamad Payam Sharifi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Autogenous Bone ◽  
Loop Length ◽  
Sectional Study ◽  
Cross Sectional ◽  
Anterior Loop ◽  
Bone Graft Harvesting

Abstract Background Bone volume plays a pivotal role in the success of dental implant treatment. Autogenous bone grafts should be harvested from reliable sites in the maxillofacial region. This study sought to assess the quantity and quality of bone in the mandibular symphysis for autogenous bone graft harvesting using cone-beam computed tomography (CBCT). Methods This cross-sectional study evaluated the CBCT scans of 78 adults presenting to three oral and maxillofacial radiology centers. The vertical (VD) and horizontal (HD) alveolar bone dimensions, cortical thickness (CT), and cancellous to cortical bone ratio (C/C) were measured in the interforaminal region of the mandible at the sites of central incisor to first premolar teeth. The interforaminal distance (ID) and the anterior loop length were also measured. Nonparametric statistical tests were used to analyze the data with respect to sex, age, and tooth position. Results The median VD, HD, and CT of the symphysis were 20.21 (3.26), 4.13 (0.37), and 2.25 (0.23) mm, respectively. The median C/C was 1.51 (0.11). The median ID was 52.24 (8.24) mm, and the median anterior loop length was 1.82 (1.06) mm. Significant differences were observed in all parameters among different teeth. Most of the measured parameters were greater in males compared with females. There were significant differences in ID, VD, and CT between different age groups. Conclusions The quantity and quality of the available bone in the mandibular symphysis for bone graft harvesting vary by gender, age, and harvesting site, necessitating careful preoperative evaluation.

Correlation of cone beam computed tomography (CBCT) findings in the maxillary sinus with dental diagnoses: a retrospective cross-sectional study

2011 ◽  
Vol 16 (4) ◽  
pp. 1023-1029 ◽  
Author(s):  
Dan Dominik Brüllmann ◽  
Irene Schmidtmann ◽  
Silke Hornstein ◽  
Ralf K Schulze
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Cone Beam Computed Tomography ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Sectional Study ◽  
Cross Sectional

scholarly journals Smoking enhances bone loss in anterior teeth in a Brazilian population: a retrospective cross-sectional study

2008 ◽  
Vol 22 (4) ◽  
pp. 328-333 ◽  
Author(s):  
Fernando Renó de Lima ◽  
João Batista Cesar-Neto ◽  
Dimas Renó de Lima ◽  
Warley David Kerbauy ◽  
Getulio Rocha Nogueira-Filho
Keyword(s):  
Bone Loss ◽  
Cross Sectional Study ◽  
Brazilian Population ◽  
Sectional Study ◽  
Cross Sectional ◽  
Anterior Teeth

scholarly journals The Prevalence of Anterior Teeth Fracture and its Relation to Malocclusion in 12 and 15 Year Old School Children Belgaum City India

2007 ◽  
Vol 1 (1) ◽  
pp. 7-11 ◽  
Author(s):  
Pradeep. S. Tangade
Keyword(s):  
Risk Factors ◽  
Relative Risk ◽  
School Children ◽  
Prevalence Rate ◽  
Strong Relationship ◽  
Cross Sectional Study ◽  
Central Incisor ◽  
Sectional Study ◽  
Cross Sectional ◽  
Anterior Teeth

ABSTRACT The objectives of this study were to know the prevalence of anterior teeth fracture and malocclusion and their correlation among the school going children aged 12 and 15 years, as well as to analyze the general relative risk factors like age, sex, malocclusion, nature and place of trauma. Method An epidemiological cross sectional study was carried out among 3621 school going children (2418 boys and 1203 girls) in Belgaum city aged 12 and 15 years. Interview was conducted fro other variables and clinical examination using modified WHO performa was done. Results The prevalence of anterior teeth fracture was 4.41%. The prevalence rate for males was 4.96% and females 3.33%. The maxillary left central incisor had more risk for fracture (42.7%). Enamel fractures compromised of 59.54%. The prevalence rate of malocclusion was 27.3%. Conclusions The study concludes that there is a strong relationship between malocclusion and fractured anterior teeth (P<0.001). Key words: Malocclusion, Trauma, Prevalence, Tooth Fracture

Applicability of Willems methods and Demirjian’s four teeth method for dental age estimation: Cross sectional study on Tunisian sub-adults

2018 ◽  
Vol 291 ◽  
pp. 281.e1-281.e9 ◽  
Author(s):  
Hichem Nemsi ◽  
Malek Ben Daya ◽  
Nidhal Haj Salem ◽  
Fatma Masmoudi ◽  
Inès Bouanène ◽  
...  
Keyword(s):  
Age Estimation ◽  
Cross Sectional Study ◽  
Dental Age ◽  
Sectional Study ◽  
Dental Age Estimation ◽  
Cross Sectional
Sign in / Sign up

Export Citation Format

Share Document