Laser Used in the Treatment of Hypomineralized Occlusal Lesions in Teeth Enamel Affected by MIH

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    University of Sao Paulo
Updated on 15 February 2022
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Background: Nowadays an increase in the incidence of teeth affected by molar incisor hypomineralisation (MIH) has been observed. There are several treatment modalities that depend on the degree of severity of the defect, such as preventive procedures, restorative and even dental extractions. However, these changes may affect the retention and longevity of restorative materials. Therefore, the aim of this study is to evaluate the use of diode laser irradiation for the treatment of occlusal surfaces of moderate lesions in permanent first molars affected with MIH as a preventive method for dental caries and occlusal wear, besides verifying the discomfort of the treatment by patients. Methods: For this, a controlled and randomized study, with parallel groups, will be conducted comparing the treatment with diode laser and sealing with high viscosity glass ionomer cement in the teeth affected by the MIH. Participants will be assessed at baseline and after 1 week, 1, 6, 12, 18 and 24 months. As the main outcome, the presence of dentin caries lesion and /or occlusal surface wear included in the study with dentin involvement will be evaluated. A visual examination for caries detection will be done using the ICDAS, using the index based on classification in the United States Public Health Service - Modified (USPH) for evaluation of sealed teeth and impression of impacted teeth for quantitative analysis of the lesions. Other outcomes such as patient satisfaction with treatment, patient discomfort, impact on quality of life and participant perception, as well as the duration and cost of treatment, as well as their cost-efficacy, will also be evaluated. Multilevel statistical analyzes will be performed to verify the efficacy of Diode laser treatment compared to sealing, in addition to possible factors associated with this efficacy.

Condition Dental Enamel Hypoplasia
Treatment Diode laser group, Glass Ionomer Sealing Group
Clinical Study IdentifierNCT03614819
SponsorUniversity of Sao Paulo
Last Modified on15 February 2022


Yes No Not Sure

Inclusion Criteria

Children who present at the first permanent molar with occlusal surface affected with light or moderate severity of MIH
Children between 6 and 10 years old

Exclusion Criteria

Teeth that present restorations
Teeth that presente sealants
Enamel malformations that are specific to some syndromes
Hypomineralized enamel affected by the ingestion of fluoride during enamel development
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