Radiographic Assessment of Dental Maturation in Children With Dental Agenesis

2016 ◽  
Vol 40 (3) ◽  
pp. 227-234 ◽  
Author(s):  
Aida Carolina Medina ◽  
Rodrigo Del Pozo ◽  
Lucila Blanco de Cedres
Keyword(s):  
Primary Teeth ◽  
Descriptive Analysis ◽  
Permanent Teeth ◽  
Dental Development ◽  
Control Group ◽  
Dental Age ◽  
Radiographic Assessment ◽  
Tooth Formation ◽  
Dental Maturation ◽  
Patients Âgés

Background: Dental agenesis is the most common developmental anomaly in humans, frequently associated with disorders in dental development and maturation. Aim: The purpose of this study is to determine radiographic variations in dental maturation in a group of Venezuelan children with dental agenesis. Study design: 1,188 panoramic radiographs, from healthy patients ages 5 to 12 years old were studied for agenesis of permanent teeth. Dental maturation was assessed by relative eruption and dental age according to Nolla, comparing children affected with dental agenesis to a stratified control group selected from the same population, excluding children with premature loss of primary teeth in the left quadrants and unclear radiographs. Descriptive analysis, and differences between means and medians (Student t test, Kruskall-Wallis p=0.05) were performed. Results: Medians for Nolla stages were similar between groups, with delay in tooth formation in the agenesis group for second molars (p<0.05) and maxillary lateral incisors and second premolars. Dental age was significantly underestimated for both groups, −0.89 (±0.78) for the control group and −1.20 (±0.95) for the study group. Tooth eruption was similar between groups. Conclusion: Dental age was significantly delayed in Venezuelan children with dental agenesis, with variable significance for tooth formation of studied teeth.

scholarly journals Dental Development in Subjects with Thalassemia Major

2006 ◽  
Vol 7 (4) ◽  
pp. 63-70 ◽  
Author(s):  
Abdalla M. Hazza'a ◽  
Ghaida Al-Jamal
Keyword(s):  
Thalassemia Major ◽  
Permanent Teeth ◽  
Dental Development ◽  
Control Group ◽  
Dental Age ◽  
Second Molar ◽  
Maturity Score ◽  
Mean Delay ◽  
Significant Difference ◽  
The Mean

Abstract Aim The aim of this study was to evaluate the dental development of patients with â-thalassemia major and to compare it with unaffected children. Methods and Materials Panoramic radiographs of 44 thalassemic patients taken before the age of 16 years were examined. The subjects consisted of 29 males and 15 females ranging in age from 4.9 to 15.7 (mean = 10.8±2.9) years and 44 controls matched for age and sex. The seven left mandibular permanent teeth, second molar to central incisor, were rated on an eight stage scale using the methods described by Demirjian et al.10 The stage of each tooth was converted to the corresponding numeric value and then all values were added to obtain a dental maturity score which corresponded to a dental age. Dental and chronologic ages were compared using a paired t-test. The relationship between the chronologic age and the amount of delay was also determined. Results Thirty-nine patients had a delay in the development of their dentition. The mean developmental dental delay was found to be 1.01 years (p<0.05). The range in delay was from 0.1 to 2.9 years. There was no significant difference between the mean chronologic and dental age of the control group (p> 0.05). The amount of delay in dental development increases as the patient.s age increased (p<0.05). Males were found to have a greater delay (mean 1.16 years) than females (mean delay 0.73 years), but this difference was not statistically significant. Conclusions The delay in dental development in β-thalassemia major varied according to the patient.s age. This positive correlation parallels the general growth of thalassemic children. Citation Hazza.a AM, Al-Jamal G. Dental Development in Subjects with Thalassemia Major. J Contemp Dent Pract 2006 September;(7)4:063-070.

Hypodontia and Tooth Formation in Groups of Children with Cleft, Siblings without Cleft, and Nonrelated Controls

2001 ◽  
Vol 38 (4) ◽  
pp. 374-378 ◽  
Author(s):  
Kristien Eerens ◽  
Robert Vlietinck ◽  
Kristin Heidbüchel ◽  
An Van Olmen ◽  
Catherine Derom ◽  
...  
Keyword(s):  
Genetic Component ◽  
Dental Development ◽  
Control Group ◽  
Dental Age ◽  
Tooth Formation ◽  
Panoramic Radiographs ◽  
Sibling Group

Objective: To compare the occurrence of hypodontia, dental age, and asymmetric dental development in children with cleft with their siblings and a nonsibling control group. Subjects: The sample consisted of 54 children with cleft (aged 4.2 to 13.1 years), who had at least one sibling available for an orthopantomogram, 63 siblings without cleft (aged 4 to 14.9 years) and 250 controls without cleft (aged between 4 and 14.9 years). Method: Hypodontia, dental age, and asymmetric dental development were assessed on panoramic radiographs of the children with cleft, the siblings without cleft, and the control children without cleft. Results: Both the cleft (p < .001) and the sibling group (p < .05) showed a significantly higher frequency of hypodontia and a significantly higher occurrence (cleft p < .01 and sibling group p < .001) of asymmetric dental development, compared with the control group. Only a small, but insignificant, delay in dental development could be found in the cleft and the sibling group. Conclusions: The cleft subjects with siblings showed a significantly higher occurrence of hypodontia and asymmetric dental development than the noncleft control group. This may suggest a genetic component for the occurrence of hypodontia and asymmetric dental development.

scholarly journals Dental anomaly pattern (DAP): Agenesis of mandibular second premolar, distal angulation of its antimere and delayed tooth formation

2013 ◽  
Vol 84 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Joana Navarro ◽  
Maria Cavaller ◽  
Estela Luque ◽  
Maria Luisa Tobella ◽  
Alejandro Rivera
Keyword(s):  
Control Sample ◽  
Statistical Testing ◽  
Control Group ◽  
Dental Age ◽  
Tooth Formation ◽  
Significance Level ◽  
Patients Âgés ◽  
Significant Difference ◽  
Student’S T ◽  
Student’S T Test

ABSTRACT Objective: To test the null hypotheses that children with unilateral agenesis of the mandibular second premolar (MnP2) do not show (1) greater distal angulation of the unerupted antimere and (2) delayed tooth formation compared with children without agenesis. Materials and Methods: Panoramic radiographs of 38 patients with unilateral aplasia of MnP2 were retrospectively examined and compared to a non-agenesic control group of 82 patients. Ages ranged from 8 to 15 years. Contralateral mandibular deciduous second molars were present for all participants. Each unerupted MnP2 was traced, and its developmental stage and angulation were recorded (measured with the distal angle and the premolar-molar angle). Dental age was evaluated using the Haavikko method. Student's t-test was performed to identify significant differences between the compared groups. The significance level for statistical testing was set at P &lt; .05. Results: The results indicated a 9.5° decrease in the distal angle and a 13.2° increase in the premolar-molar angle for the unerupted MnP2 in the agenesis sample. This was a highly statistically significant difference (P &lt; .001 and P &lt; .0001, respectively) compared with the MnP2 inclinations in the control sample. The delay in dental age was significantly greater in patients with agenesis (2.1 years) compared with the delay in the control group (1.5 years) (P &lt; .001). Conclusion: Both null hypotheses are rejected. The results of this study statistically support the hypothesis that aplasia of MnP2, distally displaced MnP2s, and delayed tooth formation are part of a genetically related pattern of dental anomalies.

An in Vivo Comparison of Antimicrobial Efficacy of Sodium Hypochlorite and Biopure MTAD™ against Enterococcus Faecalis in Primary Teeth: A qPCR Study

2014 ◽  
Vol 39 (1) ◽  
pp. 30-34 ◽  
Author(s):  
SG Tulsani ◽  
N Chikkanarasaiah ◽  
S Bethur
Keyword(s):  
Root Canal ◽  
Primary Teeth ◽  
Antimicrobial Efficacy ◽  
Permanent Teeth ◽  
Control Group ◽  
Statistical Significant Difference ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Root Canal Irrigant

Objectives: Biopure MTAD™, a new root canal irrigant has shown promising results against the most common resistant microorganism, E. faecalis, in permanent teeth. However, there is lack of studies comparing its antimicrobial effectiveness with NaOCl in primary teeth. The purpose of this study was to compare the in vivo antimicrobial efficacy of NaOCl 2.5% and Biopure MTAD™ against E. faecalis in primary teeth. Study design: Forty non vital single rooted primary maxillary anterior teeth of children aged 4-8 years, were irrigated either with NaOCl 2.5% (n=15), Biopure MTAD™ (n=15) and 0.9% Saline (n=10, control group). Paper point samples were collected at baseline (S1) and after chemomechanical preparation (S2) during the pulpectomy procedure. The presence of E. faecalis in S1 & S2 was evaluated using Real time Polymerase Chain Reaction. Results: Statistical significant difference was found in the antimicrobial efficacy of NaOCl 2.5 % and BioPure MTAD™ when compared to saline (p&gt;0.05). However, no statistical significant difference was found between the efficacies of both the irrigants. Conclusions: NaOCl 2.5% and BioPure MTAD™, both irrigants are equally efficient against E. faecalis in necrotic primary anterior teeth. MTAD is a promising irrigant, however clinical studies are required to establish it as ideal root canal irrigant in clinical practice.

scholarly journals Evaluation of dental age and associated developmental anomalies in subjects with impacted mandibular canines

2014 ◽  
Vol 85 (4) ◽  
pp. 638-644 ◽  
Author(s):  
Shikha Jain ◽  
K Sadashiva Shetty ◽  
Shweta Jain ◽  
Sachin Jain ◽  
A.T. Prakash ◽  
...  
Keyword(s):  
Null Hypothesis ◽  
Close Association ◽  
Statistical Significance ◽  
Reference Sample ◽  
Dental Development ◽  
Control Group ◽  
Dental Age ◽  
Odds Ratios ◽  
Developmental Anomalies ◽  
Orthodontic Patients

ABSTRACT Objectives:  To assess the null hypothesis that there is no difference in the rate of dental development and the occurrence of selected developmental anomalies related to shape, number, structure, and position of teeth between subjects with impacted mandibular canines and those with normally erupted canines. Materials and Methods:  Pretreatment records of 42 subjects diagnosed with mandibular canines impaction (impaction group: IG) were compared with those of 84 subjects serving as a control reference sample (control group: CG). Independent t-tests were used to compare mean dental ages between the groups. Intergroup differences in distribution of subjects based on the rate of dental development and occurrence of selected dental anomalies were assessed using χ2 tests. Odds of late, normal, and early developers and various categories of developmental anomalies between the IG and the CG were evaluated in terms of odds ratios. Results:  Mean dental age for the IG was lower than that for the CG in general. Specifically, this was true for girls (P &lt; .05). Differences in the distribution of the subjects based on the rate of dental development and occurrence of positional anomalies also reached statistical significance (P &lt; .05). The IG showed a higher frequency of late developers and positional anomalies compared with controls (odds ratios 3.00 and 2.82, respectively; P &lt; .05). Conclusions:  The null hypothesis was rejected. We identified close association of female subjects in the IG with retarded dental development compared with the female orthodontic patients. Increased frequency of positional developmental anomalies was also remarkable in the IG.

scholarly journals DENTAL CARIES INTENSITY IN CHILDREN WITH DISTURBANCES IN TOOTH FORMATION, SURVIVED AFTER THE CHORNOBYL NPP ACCIDENT

2021 ◽  
Vol 26 ◽  
pp. 426-436
Author(s):  
S. Liubarets ◽  
Keyword(s):  
Dental Caries ◽  
Ionizing Radiation ◽  
High Intensity ◽  
Permanent Teeth ◽  
Dental Occlusion ◽  
Control Group ◽  
Molar Incisor Hypomineralisation ◽  
Enamel Hypoplasia ◽  
Tooth Formation ◽  
Permanent Occlusion

Objective: assessment of dental caries intensity in children with disturbances in tooth formation living in radiologically contaminated territories as a result of the Chornobyl NPP accident. Materials and methods. Children aged 6-14 years old (n = 1470) suffering from disturbances in tooth formation (DTF) with the residents of radiologically contaminated territories (n = 528) among them were enrolled in the study. The DTF subtypes were assayed, namely the systemic enamel hypoplasia (SEH) and molar incisor hypomineralisation (MIH). Personal radiation history was recorded. Intensity of caries and caries of surfaces in the mixed (i.e. transitional) occlusion (df+DMF, dfs+DMFS coefficients) and permanent occlusion (DMF, DMFS coefficients) was identified. Results. Caries intensity in the exposed children suffering DTF with mixed and permanent dental occlusion was significantly higher vs. either in children exposed to ionizing radiation with no DTF or in the control group (р < 0.001, р < 0.001 and р < 0.05, р < 0.001 correspondingly). The highest caries intensity of the permanent teeth was revealed in the residents of contaminated territories suffering SEH (6.95 ± 2.3) vs. cases of MIH (5.68 ± 1.97) as a result of nonsymmetrical teeth involvement. Conclusions. The highest values of df+DMF, dfs+DMFS coefficients were diagnosed in children with a mixed dental occlusion aged 6-14 years old living on territories contaminated as a result of the ChNPP accident as compared to the not exposed subjects and control group (7.2 ± 2.07 and 8.98 ± 2.4, р < 0.001). A very high intensity of caries and surface caries of permanent teeth (DMF = 6.79 ± 2.34, DMFS = 8.69 ± 2.75, р < 0.001) was established in children exposed to ionizing radiation and suffering DTF. Such a high intensity may be due to the impact of a set of negative factors including the ionizing radiation in low doses and peculiarities of economic component of social status of study subjects, namely the unbalanced diet. In case of permanent occlusion the intensity of caries and caries of tooth of in children survived after the ChNPP accident and suffering SEH was significantly (р < 0.05) higher compared to the persons suffering MIH. Key words: children, caries, disturbances in tooth formation, systemic enamel hypoplasia, molar-incisor hypomineralization, ionizing radiation, ChNPP accident.

scholarly journals A Comparison of Later Stage Dental Maturation in a Small Group of Children from Chernobyl and British Children

2018 ◽  
Vol 15 (1) ◽  
pp. 1-6
Author(s):  
H. M. Liversidge ◽  
C. E. A. Rogers
Keyword(s):  
Small Group ◽  
Third Molar ◽  
Permanent Teeth ◽  
Dental Age ◽  
Cross Sectional ◽  
Dental Maturation ◽  
Nuclear Disaster ◽  
Caucasian Origin ◽  
The Difference ◽  
British Children

The aim of this study was to investigate the dental radiographic development of a small group of children born in Chernobyl, Ukraine, around the time of the nuclear disaster with an age matched group of British children. The design was a cross sectional non random retrospective study consisting of five boys and five girls from Chernobyl (age range 10.03 to 12.37) and 20 age and sex matched British children of white Caucasian origin. Developing permanent mandibular teeth were assessed from rotational tomograms using criteria described by Demirjian, Goldstein and Tanner (1973). Third molar formation was also assessed. Dental age was calculated and compared to real age using a t-test. The difference in dental age (DA) and real age (RA) was not significant when the two groups were compared. Dental age in both groups of children was advanced compared to the standards. These results suggest that the Chernobyl disaster has not affected root formation of late forming permanent teeth of these children.

scholarly journals Correlation of dental age and anthropometric parametres of the overall growth and development in children

2008 ◽  
Vol 65 (2) ◽  
pp. 141-146 ◽  
Author(s):  
Olivera Trickovic-Janjic ◽  
Mirjana Apostolovic ◽  
Mirjana Janosevic ◽  
Gordana Filipovic
Keyword(s):  
Growth And Development ◽  
Physical Growth ◽  
Whole Body ◽  
Permanent Teeth ◽  
Anthropometric Measurement ◽  
Dental Development ◽  
Dental Age ◽  
Anthropometric Parameters ◽  
Chest Cavity ◽  
General Growth

Introduction/Aim. Anthropometric methods of measuring the whole body and body parts are the most commonly applied methods of analyzing the growth and development of children. Anthropometric measures are interconnected, so that with growth and development the change of one of the parameters causes the change of the other. The aim of the paper was to analyse whether dental development follows the overall growth and development and what the ratio of this interdependence is. Methods. The research involved a sample of 134 participants, aged between 6 and 8 years. Dental age was determined as the average of the sum of existing permanent teeth from the participants aged 6, 7 and 8. With the aim of analyzing physical growth and development, commonly accepted anthropometric indexes were applied: height, weight, circumference of the head, the chest cavity at its widest point, the upper arm, the abdomen, the thigh and thickness of the epidermis. The dimensions were measured according to the methodology of the International Biological Programme. The influence of the pertinent variables' related size on the analyzed variable was determined by the statistical method of multivariable regression. Results. The middle values of all the anthropometric parametres, except for the thickness of the epidermis, were slightly bigger with male participants, and the circumference of the chest cavity was statistically considerably bigger (p < 0.05). The results of anthropometric measurement showed in general a distinct homogeneity not only of the sample group but also within gender, in relation to all the dimensions, excyt for the thickness of the epidermis. The average of the dental age of the participants was 10.36, (10.42 and 10.31 for females and males respectively). Considerable correlation (R = 0.59) with high statistical significance (p < 0.001) was determined between dental age and the set of anthropometric parameters of general growth and development. Conclusion. There is a considerable positive correlation (R = 0.59) between dental age and anthropometric parameters of general growth and development, which confirms that dental development follows the overall growth and development of children, aged between 6 and 8 years.

Are Dental Maturation, Skeletal Maturation, and Chronological Age Associated With Complete Cleft Lip and Palate?

2020 ◽  
pp. 105566562094477
Author(s):  
Taner Ozturk ◽  
Husniye Gumus ◽  
Gulce Ozturk
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Cervical Vertebra ◽  
Skeletal Maturation ◽  
Chronological Age ◽  
Control Group ◽  
Dental Age ◽  
Cross Sectional ◽  
Dental Maturation ◽  
Development Levels

Objective: The relationship between dental and skeletal development levels was determined in individuals with cleft lip and palate and a control group comprising individuals without cleft lip and palate. Design: Retrospective, cross-sectional study. Setting: A university clinic specializing in orthodontic and pedodontic care. Patients: A total of 198 patients with cleft lip and palate (99 females, 11.66 ± 2.36 years; 99 males, 12.44 ± 2.33 years) and 198 patients without cleft lip and palate (99 females, 11.88 ± 2.26 years; 99 males, 12.99 ± 2.25 years). Interventions: None. Main Outcome Measures: The Demirjian method and cervical vertebra maturation method were used to evaluate panoramic and lateral cephalometric radiographs, respectively. The Fishman maturation predictors were determined from hand-wrist radiographs. Results: Statistically significant correlations were found between the chronological age and the dental age in both the groups ( P < .05). Significant correlations between skeletal maturation indicators and dental maturation indicators were observed in both groups and sexes ( P < .05), with a stronger correlation among teeth with incomplete dental maturation. Dental age was found to be significantly lower (female, P = .001; male, P = .001) in individuals with cleft lip and palate (female, 11.71 ± 2.58 years; male, 12.51 ± 2.62 years) compared to those in the control group (female, 12.95 ± 2.47 years; male, 13.64 ± 2.37 years). Conclusions: A high correlation between the results of the evaluated radiographic methods and chronological age supports their use for accurate age estimation in the patients with cleft lip and palate.

scholarly journals Dental age assessment on panoramic radiographs: Comparison between two generations of young Finnish subjects

2018 ◽  
Vol 47 (1) ◽  
pp. 311-324 ◽  
Author(s):  
Flavia A. Birchler ◽  
Stavros Kiliaridis ◽  
Christophe Combescure ◽  
Johanna Julku ◽  
Pertti M. Pirttiniemi ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Chronological Age ◽  
Dental Development ◽  
Healthy Children ◽  
Dental Age ◽  
Age Assessment ◽  
Dental Maturation ◽  
Panoramic Radiographs ◽  
Two Generations ◽  
Maxilla And Mandible

Objective To analyse the accuracy of a meta-analysis-based dental age assessment (DAA) method in Finnish paediatric patients and to compare the dental development between two generations of Finnish children. Methods Panoramic radiographs of Finnish Caucasian healthy children from two generations (early: born 1981–1984; subsequent: born 1996–2008) were analysed. All developing teeth on the left maxilla and mandible as well as the third permanent molars were analysed following Demirjian’s classification. For each patient, dental age was calculated and compared with chronological age. Dental maturation patterns between the two groups were compared. Results The study included 200 Finnish Caucasian healthy children from two generations (early: aged 7–13 years; subsequent: aged 6–15 years). In the early generation, DAA underestimated the chronological age by a mean of 3.15 years. The underestimation was only 0.11 years in patients < 10 years, but 3.86 years in patients ≥ 10 years. In the subsequent generation, the dental age was overestimated by a mean of 0.34 years; by 0.40 years in patients < 10 years and by 0.08 years in patients ≥ 10 years. Conclusions The present DAA method is applicable to current Finnish children. Differences in dental development between two generations of Finnish children were detected.

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