Abstract
The increase of the enamel hipomineralizarion prevalence worries pediatric dentistry. It goes from delimited yellowish whited opacities to the rupture of the enamel, always related to the permanent first molars and incisives. It is because this reason that this patology is redefined as "Molar Incisor Hipomineralization", what motives the international use of the term MIH. This is about a hipomineralization enamel lesion, of sistemic origin and complex ethiology which is developed on the first year of the patient’s life. The diagnosys must be done whith different enamel hypoplasia, fluorosis and imperfect amelogenesis.
This has a significant impact in the treatment necesities even in comunities whith low caries activity which make difficult the adhesive techniques and require expensive rehabilitation processes in adults. It’s prevalence varies between 3 and 23.4% and both sexes are affected equally. In our country studies are needed to determine it’s prevalence.
References
Jävelik B, Norén JG: Enamel hypomineralziation of permanent first molars. A morphological study and survey of possible aetiological factors. Int J Paediatr Dent 2000:10:278-289.
Weerheijm KL, Jälevik B, Alaluusua S. Molar-incisor hypomineralisation Caries res. 2001;35:390.
Elfrink M.E., Schuller A.A., Weerheijm K.L., Veerkamp J.S. Hypomineralized second primary molars. Prevalence data in Dutch 5 years olds. Caries Res 2008;42:282-285.
Weerheijm KL; Groen Hj; Beentjes VE, Poorterman JH. Prevalence of cheese molars eleven-year-old dutch children. ASDC J Dent Child. 2001 Jul-Aug;68(4):259-62,229.
Calderara PC Gerthoux PM; Mocarelli P; Lukinmaa PL; Tramacere PL; Alaluusua S. The prevalence of Molar Incisor Hypomineralisation (MIH) in a group of Italian school children. Eur J Paediatr Dent 2005 Jun;6(2):79-8
Comes Martinez, A, De la Puente ruiz, C, Rodríguez Salvanés F. Prevalencia de la Hipomineralización en primero molares permanentes (MIH) población infantil del Área 2 de Madrid. RCOE vol.12n3 Madrid July-sept 2007.
Lunardelli SE, Peres MA: Prevalence and distribution of development enamel defects in primary dentition of pre-school children. Pesqui Odontol Bras 2005;19:144-149
Fearne J, Anderson P, Davis GR. 3D X-ray microscopio study of the extent of variations in enamel density in first permanent molars with idiopathic enamel hypomineralization. B D J2004; 194:634-638.
Jalevik B, Dietz W, Norén J. Scanning electrón micrograph análisis of hypomineralized enamel in permanent first molars. Int Paed Dent 2005;15.233-240
William V, Messer LB, Burrow MF: Molar incisor hypomineralization: review and recomendations for clinical management. Pediatr Dent 2006;28:224-232.
Preusser S; Ferrins V; Wleklinski C; Wetzel W. Prevalence and severity of Molar hypomineralization in a region of Germany- A brief communication. Public Health Dent.2007 Summer;67(3):148-50.
Leppäniemi A, Lukinmaa P, Alaluusua S. Nonfluoride hypomineralizations in the permanent first molar and their impact on the treatment need. Caries Res 2001;35:36-40