scholarly journals Distribution and characteristics of molar-incisor hypomineralization

2014 ◽  
Vol 71 (8) ◽  
pp. 730-734 ◽  
Author(s):  
Svjetlana Jankovic ◽  
Mirjana Ivanovic ◽  
Bojana Davidovic ◽  
Jelena Lecic
Keyword(s):  
Developmental Disorders ◽  
Pediatric Dentistry ◽  
Severe Form ◽  
Color Changes ◽  
Lower Jaw ◽  
Unerupted Tooth ◽  
Molar Incisor Hypomineralization ◽  
Permanent Molars ◽  
White Form ◽  
First Permanent Molars

Background/Aim. Developmental disorders of teeth are the problems that are becoming more present in pediatric dentistry, especially on first permanent molars and incisors. Molar Incisor Hypomineralization (MIH) is proposed term for this phenomenon. The aim of this study was to establish the MIH prevalence in children living in the Foca municipality (Bosnia and Herzegovina) as well as to assess characteristics and expression of hypomineralization within the tested population. Methods. A total of 141 children from the Foca municipality, 8 years of age, were included in this study. Criteria according to Weerhejm have been used for diagnosis of hypomineralization: demarcated opacity (DO), post-eruptive breakdown (PEB), atypical restoration (AR), extracted molars due to MIH (E-MIH) and unerupted tooth (UT). Level and the prominence of color changes have been determined for patients with DO, PEB and AR. Results. MIH in this area was present in 12.8% of children. The prevalence of MIH changes expressed in percentages was as follows: DO was at 9.2%, PEB in 3.5%, AR in 5.6%, while E-MIH was 5.6%. A total of 9.9% of the examinees had mild, 5.6% moderate, and 7.8% severe form of MIH. White form of MIH defects was found in 9.9% of the examinees, white-yellow one in 5.6% and yellow-brown color in 3.5% of the examined children. These changes were more often present in the lower jaw (60.3%). In total, 6.4% of children had these changes present only on molars, while 6.4% of them both on molars and incisors simultaneously. Conclusion. A total of 12.8% of the examinees with MIH is not to be disregarded. With timely diagnosis, prevention and therapy complications could be avoided or mitigated.

scholarly journals Prevalence of Molar Incisor Hypomineralization and its Relation with Dental Caries in School Children of Udupi District, South India

2015 ◽  
Vol 6 (3) ◽  
pp. 143-146 ◽  
Author(s):  
Kalyana Chakravarthy Pentapati ◽  
Shashidhar Acharya ◽  
Abhinav N Tadikonda
Keyword(s):  
Dental Caries ◽  
School Children ◽  
South India ◽  
Pediatric Dentistry ◽  
World Health ◽  
Significant Positive Association ◽  
Molar Incisor Hypomineralization ◽  
Permanent Molars ◽  
The Mean ◽  
First Permanent Molars

ABSTRACT Aim To evaluate the prevalence of molar incisor hypomineralization (MIH) and its relationship with dental caries in school children of Udupi district. Materials and methods A total of 352 school children were recruited for this study. The European Academy of Pediatric Dentistry (EAPD) 2003, criteria were followed for diagnosis of MIH. Dental caries was recorded using World Health Organization (WHO) guidelines (1997) under natural day light. Results The prevalence of MIH was seen to be 27% (n = 95). A total of 323 teeth had hypomineralization (106 were incisors and 217 were molars). The lower molars (n = 127) were more frequently affected than the upper molars (n = 90). Overall the maxillary incisors (n = 68) were more affected than the mandibular incisors (n = 38). Amongst the children with MIH, the mean number of decayed teeth was significantly lower than mean number of hypomineralized teeth in first permanent molars and first permanent molars and incisors (p < 0.001 and < 0.001) respectively. The mean decayed teeth in first permanent molar and incisors were significantly higher in subjects with MIH than without MIH (p < 0.001). Poisson regression analysis showed a significant positive association between MIH and dental caries (B = 1.43; p < 0.001). Conclusion The prevalence of MIH was relatively high and was associated with dental caries. How to cite this article Tadikonda AN, Acharya S, Pentapati KC. Prevalence of Molar Incisor Hypomineralization and its Relation with Dental Caries in School Children of Udupi District, South India. World J Dent 2015;6(3):143-146.

scholarly journals Molar Incisor Hypomineralization: A Literature Review

2013 ◽  
Vol 01 (01) ◽  
pp. 037-042
Author(s):  
Sudhir Mittal ◽  
Avninder Kaur ◽  
Sunila Sharma ◽  
Aditi Bector ◽  
Reetu Singh
Keyword(s):  
Current Knowledge ◽  
Children At Risk ◽  
Birth Cohorts ◽  
Childhood Diseases ◽  
Molar Incisor Hypomineralization ◽  
Permanent Molars ◽  
Long Term Prognosis ◽  
Clinical Problems ◽  
First Permanent Molars

AbstractIn this paper, the current knowledge about Molar Incisor Hypomineralization (MIH) is presented. MIH is defmed as hypomineralization of systemic origin of one to four permanent first molars frequently associated with affected incisors and these molars are related to major clinical problems in severe cases. The prevalence of MIH in the different studies ranges from 3.6-25% and seems to differ in certain regions and birth cohorts. Several aetiological factors (for example, frequent childhood diseases) are mentioned as the cause of the defect. Children at risk should be monitored very carefully during the period of eruption of their first permanent molars. Treatment planning should consider the long-term prognosis of these teeth.

Molar-Incisor Hypomineralization: Positive Correlation with Atopic Dermatitis and Food Allergies

2018 ◽  
Vol 42 (5) ◽  
pp. 344-348 ◽  
Author(s):  
Miguel Hernandez ◽  
Juan Boj ◽  
Enric Espasa ◽  
Paloma Planells ◽  
Benjamin Peretz
Keyword(s):  
Atopic Dermatitis ◽  
Cross Sectional Study ◽  
Food Allergies ◽  
Cross Sectional ◽  
European Academy ◽  
Molar Incisor Hypomineralization ◽  
Permanent Molars ◽  
First Time ◽  
First Permanent Molars ◽  
Febrile Syndrome

Aim: Molar-incisor hypomineralization is a disturbance in dental development that involves first permanent molars as well as permanent incisors with a prevalence that ranges from 2.5% to 40%. The objective of this study was to investigate the etiology of molar-incisor hypomineralization among school children from two randomly selected towns in the province of Barcelona, Spain. Study design: A cross-sectional study was conducted with 705 children ranging in age from six years-old to 14 years and 11 months-old. Full mouth examinations were carried out in accordance with the European Academy of Paediatric Dentistry criteria for the diagnosis of molar-incisor hypomineralization, from April to July 2016. Results: A total of 56 cases of molar-incisor hypomineralization were found in 22 (39.3%) boys and 34 (60.7%) girls. MIH was significantly more prevalent among those who had atopic dermatitis (OR=90.9; 33.4–247.1 CI 95%), food allergies (OR=104.2; 12.2–887.5 CI 95%), bronchitis/asthma (OR=5.3; 2.7–10.1 CI 95%), varicella (OR=96.3; 41.9–221.1 CI 95%), otitis media (OR=12.2; 6.3–23.5 CI 95%), pneumonia (OR=276.7; 35.1–2183.7 CI 95%), and febrile syndrome (OR=7.8; 4.1–14.8 CI 95%). Conclusions: The present research reveals for the first time a statistically significant relationship between atopic dermatitis and food allergies with the presence of molar-incisor hypomineralization.

Effect of Fluoride Varnish on Enamel Remineralization in Anterior Teeth with Molar Incisor Hypomineralization

2016 ◽  
Vol 40 (3) ◽  
pp. 207-210 ◽  
Author(s):  
Manuel Restrepo ◽  
Fabiano Jeremias ◽  
Lourdes Santos-Pinto ◽  
Rita CL Cordeiro ◽  
Angela CC Zuanon
Keyword(s):  
Repeated Measures ◽  
Pediatric Dentistry ◽  
Fluoride Varnish ◽  
Favorable Effect ◽  
Test Results ◽  
Anterior Teeth ◽  
Molar Incisor Hypomineralization ◽  
Significant Difference ◽  
Permanent Molars ◽  
The Mean

Objective: The objective of this study was to investigate the effect of fluoride varnish on remineralization of anterior teeth affected by Molar-Incisor Hypomineralization (MIH) by means of Quantitative Light-Induced Fluorescence- QLF. Study design: Fifty-one healthy 9 – 12- year-old children were selected according to different clinically diagnosed levels of MIH, proposed by the European Academy of Pediatric Dentistry (2003) (considering the most severe lesion per patient, n= 51 lesions), and randomly divided into two groups: (1) four applications of 5% NaF varnish, with one-week interval, and (2) usual home care- control. At each visit, the mean change in fluorescence and area of lesion were measured by QLF. The data were analyzed by repeated measures ANOVA and Tukey's test. Results: All patients showed enamel alterations in first permanent molars and incisors, frequently with two molars affected by MIH (41.1%). There was no statically significant difference in the mean of fluorescence and area of lesion between groups over the studied time. Conclusion: We observed no favorable effect on the remineralization of MIH lesions in anterior teeth after four applications of fluoride varnish.

Distribution of Molar Incisor Hypomineralization in Malaysian Children Attending University Dental Clinic

2015 ◽  
Vol 39 (3) ◽  
pp. 219-223 ◽  
Author(s):  
AS Hussein ◽  
M Faisal ◽  
M Haron ◽  
AM Ghanim ◽  
MI Abu-Hassan
Keyword(s):  
Descriptive Analysis ◽  
Age Groups ◽  
Dental Clinic ◽  
Chi Square ◽  
Permanent Molar ◽  
Molar Incisor Hypomineralization ◽  
Significant Difference ◽  
Permanent Molars ◽  
The Right ◽  
First Permanent Molars

Objectives: Molar-Incisor Hypomineralization (MIH) is a condition of hypomineralized enamel of systemic origin affecting first permanent molars and frequently permanent incisors. It is considered a global problem and data from South-East Asian countries, including Malaysia are lacking. Hence the aim of this study were to investigate the distribution and severity of MIH in a group of children aged 7-12 year olds attending pediatric dental clinic at Faculty of Dentistry, Universiti Teknologi MARA (UiTM), Malaysia. Study design: Hundred and fifty four children age 7-12 year-old with mean age of 9.14 ±1.682 had their first permanent molars and permanent incisors were examined at Faculty of Dentistry, UiTM using European Academy of Paediatric Dentistry 2003 (EAPD) criteria for diagnosis of MIH. Children at least one first permanent molar affected were considered as having MIH. Data were recorded and statistically analysed using descriptive analysis and Chi square test. Results: Twenty six of the total examined children (n=154) had MIH (16.9%). There was no statistical difference between males and females in the prevalence of MIH. However, a statistical significant difference was found by age groups. The first permanent molars were more frequently affected (58%) as compared to permanent incisors. Mandibular molars were to have the highest rate of MIH (15.5%). The right and left sides were equally affected. Mild defects were the most frequent lesion type (96.6%). Conclusions: This study revealed that MIH is a common condition (16.9%). Molars were more frequently affected than incisors with mild defects were the most common lesion status. Further studies on this defect amongst Malaysian children are worthwhile.

scholarly journals X-RAY ANALYSIS OF THE MANDIBLE IN PATIENTS WITH CROSSBITE AND MANDIBULAR DISPLACEMENT

2019 ◽  
Vol 72 (5) ◽  
pp. 993-996
Author(s):  
Lyubov V. Smahlyuk ◽  
Nelia V. Kulish ◽  
Alevtyna M. Bilous ◽  
Olena V. Luchko
Keyword(s):  
Facial Asymmetry ◽  
Masticatory Muscles ◽  
Clear Correlation ◽  
Aim Analysis ◽  
Lower Jaw ◽  
The Face ◽  
Permanent Molars ◽  
Ethics Commission ◽  
First Permanent Molars ◽  
Mandible Structure

Introduction: Significant morphological and aesthetic disabilities of the face, observed during the formation of a cross bite in combination with the displacement of the mandible, prompt the doctors – orthodontists to study carefully the morphogenesis of this anomaly. The aim: Analysis of the mandible structure in patients with a cross bite and lower jaw displac ement based on the analysis of orthopantomograms. Materials and methods: For this study, the orthodontic examination of 20 patients, 18-22 years old, was made they complained about facial asymmetry, displacement of the lower jaw and a violation of the cosmetic centers. A diagnosis of the buccal cross bite form in combination with the displacement of the lower jaw was put according to the Uzhumeckiene classification. The methods used do not contradict the conclusions of the ethics commission. Results: The analysis of the obtained data indicates that the angle of the mandible has more variable (p ≤ 0,05). Go120,8º and 125,1º. Significant of the angles of the canines according to the basal arch of the lower jaw of 102,8º and 105,4º (p≤0.01) and the angle of inclination of the first permanent molars of 89,6º and 91,4º, respectively (p≤0.01). Conclusions: The obtained data indicate that there is no clear correlation between changes in the studied parameters and the localization of anomalies (left-sided, right-sided). Indicators of the angle of the lower jaw are significantly altered from the opposite direction of its displacement. The change in the angles of inclination of the canine and the first permanent molars, as occlusive compensation, is determined reliably. The more the angle of the mandible changes, the more the lower jaw moves in the transversal direction. Perhaps this is due to the asymmetric tone of masticatory muscles.

scholarly journals Treatment options for hypomineralized first permanent molars and incisors

2006 ◽  
Vol 53 (3) ◽  
pp. 174-180
Author(s):  
Mirjana Ivanovic ◽  
Vesna Zivojinovic ◽  
Dejan Markovic ◽  
Mirjana Sindolic
Keyword(s):  
Treatment Options ◽  
Multidisciplinary Treatment ◽  
Tooth Brushing ◽  
Etiological Factors ◽  
Molar Incisor Hypomineralization ◽  
Permanent Molars ◽  
First Permanent Molars

The aim of this study was to discuss therapy possibilities in the management of molar incisor hypomineralization. Molar incisor hypomineralization (MIH) is defined as hypomineralization of one or more first permanent molars frequently affecting incisors. Etiology of MIH is not fully clarified and numerous etiological factors have been cited. Hypomineralized molars are more prone to caries, cause severe restorative problems and are frequently extracted due to serious damage and caries complications. Incisors can present demarcated enamel opacities, while enamel breakdown is uncommon. Clinically, affected molars can be sensitive to thermal and chemical irritations even when there is no enamel breakdown. Molars can be sensitive to mechanical irritations making even regular tooth brushing painful. Specific problems related to the treatment of these teeth are sensitivity and occlusion in molars and aesthetics in incisors. Considering the fact that permanent first molars with severe defects and incisors demand complex and multidisciplinary treatment they present serious problem for the patient as well as for the dentist.

Knowledge and Management of First Permanent Molars with Enamel Hypomineralization among Dentists and Orthodontists

2020 ◽  
Vol 44 (1) ◽  
pp. 20-27
Author(s):  
J Craveia ◽  
P Rouas ◽  
T Carat ◽  
DJ Manton ◽  
MJ Boileau ◽  
...  
Keyword(s):  
Study Design ◽  
Child Anxiety ◽  
Demographic Characteristics ◽  
Fissure Sealants ◽  
Diagnosis And Management ◽  
Dental Practitioners ◽  
Molar Incisor Hypomineralization ◽  
Permanent Molars ◽  
First Permanent Molars

Purpose: Molar Incisor Hypomineralization (MIH) is a developmental enamel anomaly of systemic origin affecting the first permanent molars and often the permanent incisors. Despite MIH being a prevalent anomaly, its diagnosis and management are challenging for practitioners; including poor anesthesia, failure of restorations, rapid enamel breakdown, poor resin adhesion, and related child anxiety. This study aimed to evaluate knowledge regarding and management of MIH amongst orthodontists and dentists. Study design: The study was performed from March to September 2017 and included 336 dentists and 32 orthodontists. Questionnaires comprised questions on MIH diagnosis, socio-demographic characteristics of the subjects, and photographs of a case of MIH with related questions regarding management. Results: Our results showed that 48% of dentists and 25% of orthodontists misdiagnosed MIH; with misdiagnosis associated with graduation prior to 1986 (p &lt; 0.001). Amongst dentists, 59% applied a fluoridated product and 34% applied fissure sealants in the case of moderate MIH. The application of fluoride was associated with graduation after 1986 (p &lt; 0.0001).Conclusion: Large disparities about knowledge and management of MIH exist between dental practitioners in France. Education regarding diagnosis and management of MIH is necessary.

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