Molar incisor malformation in six cases: Description and diagnostic protocol

Publication date: Available online 4 April 2017
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Ingvild Johnsen Brusevold, Thea Martine Granvoll Bie, Christine Sophie Baumgartner, Runa Das, Ivar Espelid
ObjectiveThe term molar incisor malformation (MIM) has recently been presented in scientific literature, where it is described as a condition with localized impaired root development. We here present six recently discovered cases referred to our departments.Study designThe patients were enrolled in the study after referral and examined clinically and radiologically. Two extracted teeth were further examined with micro-CT or microscopy.ResultsAffected teeth were first permanent molars with hypoplastic roots, narrow pulp chambers and a hypercalcified dentine layer cervical to the pulp chamber. Two of the cases also had cervical constrictions on the upper incisors. They were aged 8-12 years, presently healthy, but had experienced serious medical conditions located to the head and neck region in their first year of life. Some of the cases had been referred because of acute infections and pain.ConclusionIn five out of six patients severe health problems early in life located in the head and neck region may be associated with root malformation in molars and incisors. Patients with MIM need to be followed closely and extractions should be planned at the right time to avoid unnecessary infections and pain in addition to orthodontic problems.

Teaser

Molar incisor malformation (MIM) is a newly recognised condition. The dental team should be aware of this condition to make the correct diagnosis and make a control and treatment plan to avoid infection, pain and early tooth loss in affected children.


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