scholarly journals A retrospective institutional study of human age determination by evaluating the pulp length and width ratio of the maxillary lateral incisor on panoramic radiographs in Indonesian subjects

2021 ◽  
Vol 51 ◽  
Author(s):  
Vanessa Rizka Herianti ◽  
Fahmi Oscandar ◽  
Murnisari Dardjan
Keyword(s):  
Age Determination ◽  
Lateral Incisor ◽  
Width Ratio ◽  
Panoramic Radiographs ◽  
Maxillary Lateral Incisor

scholarly journals Age estimation by pulp/tooth area and width ratios in panoramic images of upper and lower canines among the Iranian population

2021 ◽  
Vol 24 (4) ◽  
Author(s):  
Roghieh Bardal ◽  
Mitra Soltani
Keyword(s):  
Linear Regression ◽  
Age Determination ◽  
Area Ratio ◽  
Iranian Population ◽  
Chronological Age ◽  
Width Ratio ◽  
Panoramic Radiographs ◽  
Panoramic Images ◽  
The Mean ◽  
The Relationship

Objective: One of the techniques of estimating age in forensic medicine, which is associated with the least trauma in both living individuals and corpses, is to use teeth. Accordingly, the present study aims to determine the relationship between chronological age and pulp-to-tooth area ratio and pulp-to-root width ratio in maxillary and mandibular canines on panoramic radiographs among the Iranian population.  Material and Methods: A total of 162 panoramic radiographs were evaluated in the present study. Selected patients were of verified age with the age range of 15-45 years. The pulp-to-tooth area ratio (PTR) and the pulp-to-root width ratio were calculated with AutoCAD 2016 software program in maxillary and mandibular canines at two points of the root. The two points include cemento-enamel Junction (CEJ) and pulp/root width at the quarter of a distance between CEJ and end point of root-canal, which was named WA, WB respectively. The patients’ age was also estimated with the use of linear regression equation. Then each patient’s chronological age and the age estimated using this technique was compared. Results: The relationship between PTR in both canines and WB variable in maxilla with chronological age was inverse and significant (P < 0.05); However, there was no strong correlation coefficient (r Gender had no effect on the results of the study. The mean difference between predicted age and actual age with combined PTR and WB formula was lower than 1 year. When the mean of PTR or WB variables was considered as a predictor, significant results were obtained (P < 0.05), showing a decrease in Standard error of estimation (SEE). The results were not significant when variables of upper PTR and lower PTR and the interaction between them were included in the linear regression model (p > 0.05). Same results were obtained with the variable of WB. Conclusion: Combining the variables of PTR and WB gives better results than using variables alone. Estimation of age with the mean of each variable shows less error than their combination.   Keywords Age determination; Canine; Panoramic radiography.

Retrospective Study of Association between Displacement of Maxillary Canine and Tooth Agenesis

2015 ◽  
Vol 39 (5) ◽  
pp. 488-492 ◽  
Author(s):  
E Jang ◽  
K Lee ◽  
S An ◽  
J Song ◽  
J Ra
Keyword(s):  
Strong Association ◽  
Permanent Tooth ◽  
Lateral Incisor ◽  
Tooth Agenesis ◽  
Third Molars ◽  
Dental Anomalies ◽  
Maxillary Canine ◽  
Panoramic Radiographs ◽  
Significant Difference ◽  
Maxillary Lateral Incisor

Objective. The purpose of this study was to investigate the interrelationships between displacement of maxillary canine and tooth agenesis in age from 10 to 19 years. Study design. The panoramic radiographs of 128 subjects with displacement of maxillary canine and 600 subjects without displacement of maxillary canine were examined. The panoramic radiographs taken between 2003 and 2013 were used for diagnosis other related dental anomalies, including permanent tooth agenesis and small maxillary lateral incisor. Results. Patients with maxillary canine displacement had a significantly higher prevalence rate of permanent tooth agenesis excluding of third molars (p &lt; 0.05). Significant increase in occurrence of tooth agenesis of maxillary lateral incisor (p &lt; 0.05), maxillary second premolar (p &lt; 0.05) and small maxillary lateral incisor (p &lt; 0.05). In contrast, the mandibular second premolar did not show any significant difference (p &gt; 0.05). Conclusion. This study indicates that there is positive relationship between displacement of maxillary canine, small maxillary lateral incisor and permanent tooth agenesis. Especially, maxillary lateral incisor and maxillary second premolar have strong association with maxillary canine displacement. Consequently, permanent tooth agenesis and small maxillary lateral incisor can be a predictor of maxillary canine displacement.

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 Prediction of maxillary canine impaction using eruption pathway and angular measurement on panoramic radiographs

2021 ◽  
Vol 92 (1) ◽  
pp. 18-26
Author(s):  
Jong Hyun Shin ◽  
Sewoong Oh ◽  
Hyejin Kim ◽  
Eungyung Lee ◽  
Seung-Min Lee ◽  
...  
Keyword(s):  
Early Intervention ◽  
Relative Position ◽  
Growth Pattern ◽  
Lateral Incisor ◽  
Maxillary Canine ◽  
Panoramic Radiographs ◽  
Impacted Canines ◽  
Distal Surface ◽  
Maxillary Lateral Incisor

ABSTRACT Objectives To compare the normal eruption pattern and angulation in impacted maxillary canines using panoramic radiographs to predict maxillary canine impaction. Materials and Methods Patients aged 6 to 15 years were classified into the normal eruption group (n = 229) and the impaction group (n = 191). At least two panoramic radiographs were taken in the normal eruption group during the eruption process of the maxillary canine. The growth pattern of the maxillary canine was analyzed using an XY coordinate system, with the tip of the maxillary lateral incisor as the origin and the tooth's long axis as the Y-axis and measurement of the relative position of the crown tip and angulation of the maxillary canine. Results The crown tips of normally erupted maxillary canines were intensively distributed along the distal surface of the maxillary lateral incisor, while those of impacted canines were widely distributed. The angulations of the normally erupted canines increased as eruption increased along the lateral incisor and then decreased at the cervical point of the lateral incisor. The angulations of the impacted canines were scattered, with no uniform pattern. Conclusions While using the normal eruption path of the maxillary canine and the pattern of change in angulation based on the distal surface of the maxillary lateral incisor, early intervention or regular follow-up is needed to prevent maxillary canine impaction.

Impact of oral-health-related quality of life and self-esteem on patients with missing maxillary lateral incisor after orthodontic space closure: a single-blinded, randomized, controlled trial

2020 ◽  
Author(s):  
Matheus Melo Pithon ◽  
Eduardo Otero Amaral Vargas ◽  
Raildo da Silva Coqueiro ◽  
Rogério Lacerda-Santos ◽  
Orlando Motohiro Tanaka ◽  
...  
Keyword(s):  
Oral Health ◽  
Controlled Trial ◽  
Phase 1 ◽  
Self Esteem ◽  
Lateral Incisor ◽  
Phase 2 ◽  
Space Closure ◽  
Related Quality ◽  
Health Related ◽  
Maxillary Lateral Incisor

Summary Background The maxillary lateral incisor is one of the teeth most likely to suffer agenesis, resulting in spacing between the central incisor and the canine. Objective To compare maxillary lateral incisor agenesis with space closure treatment versus non-treatment based on measurements of the self-perceived oral-health-related quality of life (OHRQoL) and self-esteem of the participants. Subjects and methods A total of 44 people, aged 17–49 years, with missing lateral incisors were randomly assigned to two groups (n = 22 in each)—a treated group in which the space was orthodontically closed (TG) and a control group that remained untreated (CG). Randomization was performed by a researcher who was not involved in the clinical part of the study. The outcomes were assessed using the Oral Health Impact Profile and Rosenberg’s Self-Esteem Scale, which were applied before (phase 1) and after (phase 2) the orthodontic treatment in the TG, and at baseline (phase 1) and 12 months after (phase 2) in the CG. All the data were blindly evaluated, supporting the single-blinded design of the study. Results All participants finished the randomized controlled trial, and the demographic characteristics were similar between the groups. In phase 1, the levels of self-esteem and OHRQoL at baseline were similar (P = 0.079, P = 0.693, respectively). In phase 2, the self-esteem scores of the CG decreased and the OHRQoL increased (P = 0.005, P &lt; 0.001, respectively), while self-esteem increased in the TG and the OHRQoL decreased (P &lt; 0.001). The CG had lower scores than the TG for self-esteem, but the opposite was observed for OHRQoL (P &lt; 0.001). Limitations Information bias may have occurred. Since the questionnaires could not have been applied at the same time in both groups, the time difference between the two assessments may have led to random and systematic error. Conclusions The spacing resulting from missing maxillary lateral incisors had a negative impact on the OHRQoL and self-esteem of the participants, while orthodontically closing those spaces had a positive impact on those aspects. Clinical trial registration This study was not registered. Protocol The protocol was not published before trial commencement.

scholarly journals Dual embryonic origin of maxillary lateral incisors: clinical implications in patients with cleft lip and palate

2015 ◽  
Vol 20 (5) ◽  
pp. 118-125 ◽  
Author(s):  
Daniela Gamba Garib ◽  
Julia Petruccelli Rosar ◽  
Renata Sathler ◽  
Terumi Okada Ozawa
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Lateral Incisor ◽  
Craniofacial Anomalies ◽  
Nasal Process ◽  
Embryonic Origin ◽  
Maxillary Lateral Incisor ◽  
To Come ◽  
Dual Origin ◽  
Research Analysis

Introduction:Cleft lip and palate are craniofacial anomalies highly prevalent in the overall population. In oral clefts involving the alveolar ridge, variations of number, shape, size and position are observed in maxillary lateral incisors. The objective of this manuscript is to elucidate the embryonic origin of maxillary lateral incisors in order to understand the etiology of these variations.Contextualization: The hypothesis that orofacial clefts would split maxillary lateral incisor buds has been previously reported. However, recent studies showed that maxillary lateral incisors have dual embryonic origin, being partially formed by both the medial nasal process and the maxillary process. In other words, the mesial half of the lateral incisor seems to come from the medial nasal process while the distal half of the lateral incisor originates from the maxillary process. In cleft patients, these processes do not fuse, which results in different numerical and positional patterns for lateral incisors relating to the alveolar cleft. In addition to these considerations, this study proposes a nomenclature for maxillary lateral incisors in patients with cleft lip and palate, based on embryology and lateral incisors position in relation to the alveolar cleft.Conclusion:Embryological knowledge on the dual origin of maxillary lateral incisors and the use of a proper nomenclature for their numerical and positional variations renders appropriate communication among professionals and treatment planning easier, in addition to standardizing research analysis.

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