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

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.

2021 ◽  
pp. 146531252199183
Author(s):  
Jed Lee ◽  
Joanna Johnson ◽  
Dirk Bister ◽  
Mohsin Chaudhary ◽  
Golfam Khoshkhounejad

Objective: To observe whether paediatric dentists and orthodontists balance and compensate the extraction of first permanent molars (FPMs) in children aged 7–11 years. Design: Service evaluation. Setting: UK dental teaching hospital. Methods: Retrospective analysis of FPM extraction patterns in patients aged 7–11 years that attended for extraction of FPMs from 1 January 2019 to 31 January 2020 (13-month period). Results: A total of 194 patients were included and they collectively had 435 FPMs extracted. No balancing extractions to prevent dental centreline shifts and no lower FPM compensatory extractions were performed. Compensatory extraction of good prognosis upper FPMs were performed in 64% (94/146) of cases to avoid overeruption. Orthodontic input was sought for poor prognosis lower FPMs in 76% of cases compared to 51% for poor prognosis upper FPMs. Conclusion: Compensatory extraction of good prognosis upper FPMs to avoid overeruption appears to be a common practice at Guy’s and St Thomas’ Hospitals. There was also higher demand for orthodontic advice for cases presenting with poor prognosis lower FPMs compared to poor prognosis upper FPMs, which suggests that paediatric dentists may prefer for the final decision on upper FPM compensatory extractions to be made by an orthodontist, even with national guidelines available. More high-quality research on the topic is required to determine the necessity of this practice for achieving optimal long-term oral health in children.


2018 ◽  
Vol 42 (5) ◽  
pp. 344-348 ◽  
Author(s):  
Miguel Hernandez ◽  
Juan Boj ◽  
Enric Espasa ◽  
Paloma Planells ◽  
Benjamin Peretz

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.


2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Luis de la Cruz-Merino ◽  
Fernando Henao Carrasco ◽  
David Vicente Baz ◽  
Esteban Nogales Fernández ◽  
Juan José Reina Zoilo ◽  
...  

Impact of immune microenvironment in prognosis of solid tumors has been extensively studied in the last few years. Specifically in colorectal carcinoma, increased knowledge of the immune events around these tumors and their relation with clinical outcomes have led to consider immune microenvironment as one of the most important prognostic factors in this disease. In this review we will summarize and update the current knowledge with respect to this intriguing and complex new hallmark of cancer, paying special attention to infiltration by T-infiltrating lymphocytes and their subtypes in colorectal cancer, as well as its eventual clinical translation in terms of long-term prognosis. Finally, we suggest some possible investigational approaches based on combinatorial strategies to trigger and boost immune reaction against tumor cells.


2014 ◽  
Vol 71 (8) ◽  
pp. 730-734 ◽  
Author(s):  
Svjetlana Jankovic ◽  
Mirjana Ivanovic ◽  
Bojana Davidovic ◽  
Jelena Lecic

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.


Vestnik ◽  
2021 ◽  
pp. 73-77
Author(s):  
М.А. Нуржанова ◽  
А.Е. Темурова ◽  
Ж.М. Жанкетаева ◽  
Ж.Ш. Бабак ◽  
Ш.М. Отеева ◽  
...  

Данная обзорная статья посвящена проблеме коморбидных пациентов, а именно для случаев сниженной скорости клубочковой фильтрации (СКФ) и атеросклероза коронарных артерии. Эта проблема является одним из важных моментов в кардиологии и нефрологии, так как Хроническая болезнь почек (ХБП) осложняет Инфаркт миокарда (ИМ) и в целом течения Ишемической болезни сердца (ИБС). В этой работе мы обсуждаем уникальные проблемы ведения этих пациентов, осложнения и смертность на госпитальном этапе, влияние ХБП на долгосрочный прогноз после ИМ, лечение которых проводится с помощью консервативной терапии и реваскуляризации миокарда, с целью призыва на профилактические меры и дальнейших разработок, и выделения доступных методов лечения, сокращения осложнений и госпитализаций, и других клинических проблем. This review article is devoted to the problem of comorbid patients, namely for cases of decreased glomerular filtration rate (GFR) and coronary atherosclerosis. This problem is one of the important points in cardiology and nephrology, since Chronic Kidney Disease (CKD) complicates myocardial infarction (MI) and, in general, the course of coronary heart disease (IHD). In this paper, we discuss the unique problems of managing these patients, complications and mortality at the hospital stage, the impact of CKD on the long-term prognosis after MI, which are treated with conservative therapy and myocardial revascularization. With the aim of calling for preventive measures and further developments, and highlighting available treatment methods, reduction of complications and hospitalizations; and other clinical problems.


2015 ◽  
Vol 39 (3) ◽  
pp. 219-223 ◽  
Author(s):  
AS Hussein ◽  
M Faisal ◽  
M Haron ◽  
AM Ghanim ◽  
MI Abu-Hassan

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.


2015 ◽  
Vol 6 (3) ◽  
pp. 143-146 ◽  
Author(s):  
Kalyana Chakravarthy Pentapati ◽  
Shashidhar Acharya ◽  
Abhinav N Tadikonda

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.


2020 ◽  
Vol 47 (2) ◽  
pp. 140-147
Author(s):  
Nayoung Oh ◽  
Soonhyeun Nam ◽  
Jaesik Lee ◽  
Hyunjung Kim

This study analyzed the longevity of preformed metal crowns (PMCs) in first permanent molars and evaluated factors influencing their survival during a long-term follow-up period. In all, 115 first permanent molars treated with PMCs between June 2008 and June 2018 were retrospectively analyzed. The overall combined success rate for the study group was 84.3%. The 5-year survival rate was 82.8%. Multivariate Cox regression analyses identified distal cavities and mandibular PMC placement as risk factors for restoration failure. Careful placement of PMCs at the final try-in stage augments the longevity of the crown.


2021 ◽  
Vol 31 (06) ◽  
pp. 482-491
Author(s):  
Carlo Marcelis ◽  
Gabriel Dworschak ◽  
Ivo de Blaauw ◽  
Iris A.L.M. van Rooij

AbstractAnorectal malformation (ARM) is a relatively frequently occurring congenital anomaly of hindgut development with a prevalence of 1 in 3,000 live births. ARM may present as an isolated anomaly, but it can also be associated with other anomalies, sometimes as part of a recognizable syndrome. After birth, much medical attention is given to the treatment and restoring of bowel function in children with ARM. Effort should also be given to studying the etiology of the ARM in these patients. This information is important to both the medical community and the family, because it can help guide treatment and provides information on the long-term prognosis of the patient and recurrence risk in the family.In this article, we will review the current knowledge on the (genetic) etiology of (syndromic) ARM and provide guidelines for (family) history taking and clinical and genetic studies of ARM patients and their families, which is needed to study the causal factors in an ARM patient and for genetic counseling of the families.


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