scholarly journals Hypomineralized Second Primary Molars as Predictor of Molar Incisor Hypomineralization

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
A. Negre-Barber ◽  
J. M. Montiel-Company ◽  
M. Boronat-Catalá ◽  
M. Catalá-Pizarro ◽  
J. M. Almerich-Silla
Keyword(s):  
Primary Molars ◽  
Second Primary ◽  
Molar Incisor Hypomineralization

On the Etiology of Molar-Incisor Hypomineralization

2016 ◽  
Vol 50 (2) ◽  
pp. 166-169 ◽  
Author(s):  
Alexandre R. Vieira ◽  
Elaine Kup
Keyword(s):  
Risk Factors ◽  
Genetic Variation ◽  
Clinical Presentation ◽  
Dental Enamel ◽  
Geographic Location ◽  
Primary Molars ◽  
Second Primary ◽  
Genetic Condition ◽  
Enamel Formation ◽  
Molar Incisor Hypomineralization

Molar-incisor hypomineralization (MIH) is a condition that is defined based on its peculiar clinical presentation. Reports on the etiology of the condition and possible risk factors are inconclusive and the original suggestion that MIH is an idiopathic condition is often cited. Our group was the first to suggest MIH has a genetic component that involves genetic variation in genes expressed during dental enamel formation. In this report, we provide a rationale to explain the preferential affection of molars and incisors. We suggest that MIH is a genetic condition based on its prevalence, which varies depending on the geographic location, and the evidence that on occasion second primary molars, permanent canines, and premolars can show signs of hypomineralization of enamel when molars and incisors are affected.

scholarly journals Association between demarcated enamel hypomineralization on second primary molars and dental caries in childhood

2020 ◽  
Vol 33 (3) ◽  
pp. 181-186
Author(s):  
Cristiane Costa-Silva ◽  
Glaucia Ambrosano ◽  
Fábio Mialhe
Keyword(s):  
Logistic Regression ◽  
Public Schools ◽  
Dental Caries ◽  
Caries Experience ◽  
Primary Molars ◽  
Second Primary ◽  
Chi Square ◽  
Cross Sectional ◽  
Clinical Appearance ◽  
Molar Incisor Hypomineralization

Hypomineralized Second Primary Molars (HSPM) is the name used to describe the presence of demarcated enamel hypomineralization in second primary molars. HSPM has been compared with Molar Incisor Hypomineralization (MIH) as regards its clinical appearance and consequences. The aim of this study was to investigate associations between HSPM and dental caries in childhood. It was a cross-sectional populationbased study that included 216 children aged 4-6 years from public schools in Botelhos, Brazil. Children with all second primary molars erupted were eligible for participation. Clinical examination was performed by one calibrated examiner. HSPM was recorded according to modified European Academy of Paediatric Dentistry criteria. The main outcome was dental caries experience as indicated by the dmft index (%dmft>0) according to WHO criteria. Chi-square test and Logistic Regression Model were used to adjust the results for effects of covariates Among the 216 children examined, 22.2% presented HSPM. After adjustment for logistic regression, children with HSPM were found to have a 2.28 times greater chance of presenting dental caries. Our results reinforce the importance of HSPM in caries development in children, which should be considered by public health dentists in the process of planning actions aimed at this population.

scholarly journals The Relationship between Hypomineralized Second Primary Molars and Molar Incisor Hypomineralization in a Group of School-Aged Children in Turkey

2021 ◽  
Author(s):  
Esra Karakaya ◽  
Hayriye Sonmez
Keyword(s):  
Pediatric Dentistry ◽  
Primary Molars ◽  
Control Group ◽  
Second Primary ◽  
European Academy ◽  
School Aged Children ◽  
Molar Incisor Hypomineralization ◽  
Pediatric Dentists ◽  
Permanent Molars ◽  
The Relationship

Abstract Aim This study aims to evaluate the relationship between hypomineralized second primary molars (HSPMs) and molar incisor hypomineralization (MIH) and to determine the prevalence of HSPM in different severities of MIH. Methods The study included a total of 345 children aged 7 to 11, affected with MIH at various severities. Scoring for HSPM defects was adapted according to the European Academy of Pediatric Dentistry diagnostic criteria and applied by a single calibrated examiner. Comparative evaluation of HSPM at various MIH severities was tested using a single variable logistic regression analysis. An odds ratio at a 95% confidence interval was used to test the relation between HSPM and MIH. Results The prevalence of HSPM was 61.7% in MIH-affected children, whereas it was 2.6% in the control group (p < 0.001). The presence of HSPM and the increase in the number of affected teeth significantly raised the odds of the occurrence of MIH. HSPM prevalence was higher in children affected with milder MIH compared to those affected severely. The recorded defects were common as white-cream demarcated opacities without any loss of structure. Conclusion The prevalence of HSPM was significantly higher in children presenting MIH. Therefore, hypomineralization on the primary second molars pointed to an association between MIH and HSPM. For an early diagnosis of MIH, children presenting HSPM whose first permanent molars have not erupted yet should be followed up at regular intervals by pediatric dentists.

Resorption of multirooted temporary teeth in children with dentofacial anomalies in accordance with the orthopantomography data

2020 ◽  
Vol 20 (3) ◽  
pp. 235-241
Author(s):  
F. S. Ayupova ◽  
S. N. Alekseenko ◽  
V. Ya. Zobenko ◽  
T. V. Gayvoronskaya
Keyword(s):  
Primary Teeth ◽  
Root Resorption ◽  
Type A ◽  
Mixed Dentition ◽  
Permanent Teeth ◽  
Primary Molars ◽  
Second Primary ◽  
X Rays ◽  
Primary Molar ◽  
Posterior Teeth

Relevance. To study the incidence of different types of resorption of multirooted primary teeth, to specify indications for deciduous molar extraction to prevent eruption abnormalities of permanent posterior teeth in mixed dentition.Materials and methods. Root resorption of 375 multirooted primary teeth (166 first primary molars and 209 second primary molars) was studied on panoramic X-rays of 60 children (30 girls and 30 boys) aged between 7 and 15. Illustrated classification by T.F. Vinogradova (1967) improved by authors was used to determine type and degree of root resorption of multi-rooted primary teeth. Received data were described with absolute values of number of cases and percentage. Chi-square was used to detect differences in sign incidence rate between groups, p<0.05 was considered statistically significant.Results. There were no statistically significant gender differences (p>0,05) in type and degree of root resorption of multirooted primary teeth. Type A resorption prevailed and constituted 53.3% of all primary molars. Disturbances in root resorption of multirooted primary teeth in mixed dentition were related to health condition of primary teeth. Transition of even resorption to unven was considered a risk factor of delayed eruption and aberrant position of permanent teeth, and indication for extraction of a primary molar in question. Conclusions. 1) Even root resorption (type A) was detected in 53.3% of primary molars in mixed dentition by orthopantomography. 2) Transition from even resorption of primary molar roots to uneven resorption was associated with eruption deviations and delayed premolar eruption. 3) Timely extraction of primary molars with uneven root resorption facilitated correct eruption of premolars and increased effectiveness of secondary prevention of malocclusion in children.

Success Rate of Obturation of Root Canals by Different Techniques in Primary Molars: A Comparative Clinical Study

2020 ◽  
Vol 2 (1) ◽  
pp. 36-44
Author(s):  
Satyawan G. Damle ◽  
Ritika Bansal ◽  
Dhanashree D. Sakhare
Keyword(s):  
Success Rate ◽  
Study Groups ◽  
Primary Molars ◽  
Control Group ◽  
Second Primary ◽  
Chi Square ◽  
Exact Test ◽  
Root Canals ◽  
Significant Difference ◽  
Comparative Clinical Study

Objective: To compare the success rate of different obturation procedures in primary mandibular second molars clinically and also by digital radiovisiography. Methods: A total of 40 children aged between 4-8 years with deeply carious mandibular second primary molars indicated for single session pulpectomy were selected. Canals were obturated with Metapex. The 3 study groups (Endodontic plugger, Handheld lentulospiral, Navi Tip syringe) were compared with the control group (reamer) both clinically and radiovisiographically. The data collected were statistically analyzed using Pearson’s Chi-square and Fisher’s exact test. Results: The use of Navi tip syringe led to the least number of voids followed by Endodontic plugger and Reamer and the highest number of voids was reported with Lentulospiral. Navitip presented maximum number of optimally filled cases followed by Endodontic plugger and Lentulospiral and least number of optimally filled cases with reamer. However, there was no statistically significant difference (p>0.05) in any of the groups with clinical (pain and tenderness to percussion) and radiographic parameters (presence or absence of voids and length of obturation). Conclusion: Within the limitations of the present study, though the clinical outcome was statistically insignificant, Navitip syringe exhibited encouraging results and is a promising option for obturation in primary teeth.

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.

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