In vivo Scanning Electron Microscope Assessment of Enamel Permeability in Primary Teeth with and without Early Childhood Caries

2015 ◽  
Vol 49 (3) ◽  
pp. 209-215
Author(s):  
J.S. Narrenthran ◽  
M.S. Muthu ◽  
A. Renugalakshmi
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Early Childhood ◽  
Early Childhood Caries ◽  
Primary Teeth ◽  
Tooth Enamel ◽  
Statistical Significance ◽  
Primary Tooth ◽  
Scanning Electron ◽  
Childhood Caries

Background: Over the years, certain primary teeth have been shown to be highly sensitive to dental caries, while others have remained caries-free. It has been hypothesized that this may be attributed to differences in the permeability of the enamel surface. Aim: The aim of the study was to evaluate the hypothesized differences in the permeability of primary tooth enamel in children with and those without Severe Early Childhood Caries (S-ECC) using scanning electron microscopy. Materials and Methods: Sixteen children between 3 and 6 years of age were randomly selected and divided into two groups: Group 1, children without S-ECC (n = 8), and Group 2, children with S-ECC (n = 8). In each child, 4 teeth (the maxillary right and left central and lateral incisors) were subjected to evaluation. An impression was made with polyvinylsiloxane impression material, and scanning electron microscopy was used to inspect the negative replicas for droplets. Results: The results indicated higher significance when individual regions (cervical, middle, and incisal thirds) in the two groups were evaluated and compared. Similarly, the overall results showed high statistical significance between S-ECC and non-S-ECC teeth. Conclusion: There could be a positive relationship between the permeability of tooth enamel and the development of caries, which needs further research.

scholarly journals Association between developmental dental anomalies, early childhood caries and oral hygiene status of 3–5-year-old children in Ile-Ife, Nigeria

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Morenike Oluwatoyin Folayan ◽  
Michael Alade ◽  
Abiola Adeniyi ◽  
Maha El Tantawi ◽  
Tracy L. Finlayson
Keyword(s):  
Early Childhood ◽  
Oral Hygiene ◽  
Early Childhood Caries ◽  
Statistical Significance ◽  
Primary Molars ◽  
Second Primary ◽  
Dental Anomalies ◽  
Enamel Hypoplasia ◽  
Poor Oral Hygiene ◽  
Childhood Caries

Abstract Background To determine the association between developmental dental anomalies (DDA), early childhood caries (ECC) and oral hygiene status of 3–5-year-old children resident in Ile-Ife, Nigeria. Methods This was a cross-sectional study. We analyzed data for 3–5-year-olds extracted from the dataset of a household survey collected to determine the association between ECC and maternal psychosocial wellbeing in children 0–5-year-old. The outcome variables for the study were ECC and poor oral hygiene. The explanatory variable was the presence of developmental dental anomalies (supernumerary, supplemental, mesiodens, hypodontia, macrodontia, microdontia, peg-shaped lateral, dens evaginatus, dens invaginatus, talons cusp, fusion/germination, hypoplasia, hypomineralized second molar, fluorosis, amelogenesis imperfecta). The prevalence of each anomaly was determined. Poisson regression analysis was conducted to determine the association between presence of developmental dental anomalies, ECC and oral hygiene status. The model was adjusted for sex, age and socioeconomic status. Results Of the 918 children examined, 75 (8.2%) had developmental dental anomalies, 43 (4.7%) had ECC, and 38 (4.1%) had poor oral hygiene. The most prevalent developmental dental anomalies was enamel hypoplasia (3.9%). Of the 43 children with ECC, 6 (14.0%) had enamel hypoplasia and 3 (7.6%) had hypomineralized second primary molar. There was a significant association between ECC and enamel hypoplasia (p < 0.001) and a borderline association between ECC and hypomineralized second primary molars (p = 0.05). The proportion of children with poor oral hygiene (PR: 2.03; 95% CI: 0.91–4.56; p = 0.09) and ECC (PR: 2.02; 95% CI: 0.92–4.46; p = 0.08) who had developmental dental anomalies was twice that of children with good oral hygiene and without ECC respectively, although the differences did not reach statistical significance. Conclusions Enamel hypoplasia and hypomineralized second primary molars are developmental dental anomalies associated with ECC. developmental dental anomalies also increases the probability of having poor oral hygiene in the population studied.

Enamel Corrosion Produced by Zinc Phosphate Dental Cement

1976 ◽  
Vol 55 (1) ◽  
pp. 107-110 ◽  
Author(s):  
Abraham Abramovich ◽  
Ricardo L. Macchi ◽  
Lucía M. Ribas
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Phosphoric Acid ◽  
Acid Solution ◽  
Surface Topography ◽  
Zinc Phosphate ◽  
Tooth Enamel ◽  
Phosphoric Acid Solution ◽  
Dental Cement ◽  
Scanning Electron

The surface of tooth enamel that had been left in contact with a phosphoric acid solution or a zinc phosphate cement mix was studied by scanning electron microscopy. Both treatments modified enamel surface topography. The modifications were represented by cavities of varying extension and depth.

scholarly journals Dietary intake and early childhood caries

2019 ◽  
Vol 26 (2) ◽  
pp. 8-9
Author(s):  
Lina María Villegas ◽  
Judy Elena Villavicencio ◽  
Adolfo Contreras
Keyword(s):  
Public Health ◽  
Early Childhood ◽  
Dental Caries ◽  
Early Childhood Caries ◽  
Tooth Enamel ◽  
Public Health Problem ◽  
Single Origin ◽  
The Mean ◽  
The Caribbean ◽  
Childhood Caries

Early childhood caries (ECC) affect children less than 71 months of age (1) and it represents a public health problem in countries worldwide (2–4). The mean ECC prevalence in United Nations Countries was 23.8% in children younger than 36 months and 57.3% in children aged 36 to 71 months. East Asia and Latin America and the Caribbean were the worst affected by ECC among children aged 36 to 71 months (5). Dental caries pertains to a group of diseases that are estimated “complex” or “multifactorial,” with no single origin pathway (6) and it is resulted by the interaction of bacteria, mainly Streptococci mutans (SM) and  actobacilli (LB), and sugary foods on tooth enamel (6,7). Additionally, there must be a lack of oral hygiene and lack of use of fluoride (8).

scholarly journals Scanning Еlectron Мicroscopy of Еnamel and Dentin of Тeeth with Hypocalcified Аmelogenesis Imperfecta

Folia Medica ◽  
2016 ◽  
Vol 58 (1) ◽  
pp. 54-59 ◽  
Author(s):  
Ani B. Belcheva ◽  
Ivan At. Philipov ◽  
Georgi T. Tomov
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Electron Microscope ◽  
Healthy Subjects ◽  
Primary Teeth ◽  
Morphological Characteristics ◽  
Amelogenesis Imperfecta ◽  
Dentinal Tubules ◽  
Histological Features ◽  
Scanning Electron

Abstract The histological features of teeth with hypocalcified amelogenesis imperfecta (AI) have been poorly studied, which calls into question the effectiveness of modern adhesive techniques used in the treatment of these noncarious defects. Aim: The aim of this study was to investigate the morphological features of the enamel and dentin of teeth with AI using scanning electron microscopy (SEM), and compare these features with those of healthy teeth. Materials and methods: We examined four primary teeth extracted on indication from a 10-year-old girl with hypocalcified amelogenesis imperfecta. The same number of primary teeth extracted from healthy subjects was used as controls. The morphological characteristics of the enamel and dentin are described after investigating the teeth and photographing the specimens with scanning electron microscope. Results: The SEM photos of the enamel of AI teeth show presence of external defects, incorrectly oriented enamel prisms and enlarged interprism spaces. Thickening of the peritubular dentin and partially obliterated dentinal tubules characterize the dentin of these teeth. Conclusion: The enamel and dentin of teeth affected by hypocalcified AI diff er considerably from normal hard dental structures in their morphological characteristics.

scholarly journals Comparison of root canal length measurement methods in primary teeth

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Mine Koruyucu ◽  
Merve Bayram ◽  
Yelda Kasımoğlu ◽  
Figen Seymen
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Root Canal ◽  
Primary Teeth ◽  
Conventional Radiography ◽  
Actual Length ◽  
Root Canals ◽  
Working Length ◽  
Electronic Apex Locator ◽  
Scanning Electron

Objectives: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth (in-vivo) and to compare the results with scanning electron microscopy measurements (ex-vivo). Materials and Methods: This study was conducted on 50 primary molar teeth. Standard endodontic access cavity preparations were prepared and the actual length was calculated by calibrated investigators. Working lengths were determined by using conventional radiography, RVG and apex locator in a total of 116 root canals. After the extraction of the teeth, each canal length was determined by using SEM. Data were analysed statistically by using Oneway Anova, Tukey HDS, Student t test and Bonferroni tests. Results: The mean root length measurements with conventional radiography were significantly higher than apex locator, RVG and SEM. The accuracy of apex locator and RVG were higher than conventional radiography in determining the working length in primary teeth. Conclusions: The electronic apex locators provide an acceptable level of accuracy in determining root canal length in primary teeth. Clinical Relevance: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth and,to compare the results with scanning electron microscopy measurements.

scholarly journals The Effectiveness of Early Childhood Caries Treatment with MI Varnish Fluor in Obese Subjects: A Study from Vietnam

Children ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 1151
Author(s):  
Ha Van Hung ◽  
Vo Truong Nhu Ngoc ◽  
Dinh-Toi Chu
Keyword(s):  
Early Childhood ◽  
Early Childhood Caries ◽  
Statistical Significance ◽  
Normal Weight ◽  
Tooth Surface ◽  
Obese Children ◽  
Start Time ◽  
Recovery Rates ◽  
Significant Difference ◽  
Childhood Caries

Objective: We conducted this work to evaluate the effectiveness of treatment for early childhood caries (ECC) using MI Varnish Fluor in obese children aged from 36 to 71 months. Methods: This study was conducted on 300 carious teeth of obese children and normal-weight children in Hanoi, Vietnam, over the period 2019–2020. Diagnodent KaVo 2190 laser equipment was used to diagnose ECC. The children in each group were selected on the basis of similarities in age, gender, and study location, and the teeth in the two groups were selected on the basis of similarities in damage level and jaw position. ECC treatment was performed once a week for four consecutive weeks with MI Varnish Fluor. The child, the child’s family, and the child’s teacher were consulted on diet and oral hygiene during the treatment. Children were examined and monitored throughout the treatment period. Children were re-examined after 3 and 6 months from the start time of treatment. The Mann–Whitney U test and Kruskal–Wallis tests were used, with statistical significance indicated at p < 0.05. Results: After six months of treatment with MI Varnish Fluor, the number of cases of code 0 damage recovery (D0) increased in both groups. The result showed that MI Varnish fluor was effective in ECC treatment. D0 damage recovery rates of 79.3% in obese children and 62.7% in normal-weight children were observed after six months of treatment, but there was no statistically significant difference between the two groups. Furthermore, there was no statistically significant difference between the two groups according to age, tooth position, or tooth surface position in D0 damage recovery. Conclusions: MI Varnish Fluor was effective in ECC treatment, with D0 damage recovery rates of 79.3% in obese children and 62.7% in normal-weight children after six months of treatment.

Apexification of primary teeth: a treatment option

2002 ◽  
Vol 26 (4) ◽  
pp. 351-355
Author(s):  
Marta Lua Pimentel Winz Almeida ◽  
Licinia Maria Damasceno ◽  
Laura Guimaraes Primo ◽  
Maristela Barbosa Portela
Keyword(s):  
Early Childhood ◽  
Calcium Hydroxide ◽  
Treatment Option ◽  
Early Childhood Caries ◽  
Primary Teeth ◽  
Deciduous Teeth ◽  
Feasible Option ◽  
Childhood Caries

This article reports a case of apexification in a child aged 20 months, with early childhood caries, using calcium hydroxide paste in two primary upper central incisors. This method is a feasible option for treating immature deciduous teeth showing pulpal necrosis.

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