Resin infiltration effective for maintaining structural integrity of MIH-affected teeth

Medically Reviewed By : Dr. Kamal Kant Kohli

Published On 2021-02-09 03:00 GMT | Update On 2021-02-09 06:47 GMT

Dentists from the Department of Morphology and Pediatric Dentistry, Araraquara School of Dentistry, Sao Paulo State University (UNESP), Brazil have recently found out that resin infiltration proved to be a more efficacious intervention to maintain the structural integrity of MIH-affected teeth than fluoride varnish therapies.

The study is published in the Journal of Dentistry.

Vinícius Krieger Costa Nogueira and colleagues conducted this study to evaluate the influence of fluoride varnish (FV) therapies or resin infiltration (RI) to maintain the structural integrity of Molar Incisor Hypomineralization (MIH) -affected teeth.

The authors included a total of fifty-one children aged 6–12 years with at least one incisor and one first permanent molar with yellow/brown MIH opacities. Patients were randomly allocated into three groups: FV – Fluoride Varnish (Duraphat); FV+etch – Fluoride Varnish (Duraphat) after enamel etching with 37% phosphoric acid; or RI – Resin Infiltration system (Icon). Opacities were monitored for 18 months.

The primary outcome was the loss of integrity due to post-eruptive enamel breakdown (PEB). Covariables included sex, age, DMFT index, opacity color, plaque index, number of MIH-affected teeth, and number of MIH-affected surfaces. Fisher's Exact was used to test the association of treatments with PEB, the Kaplan-Meyer method analyzed the survival rates and Cox-regression determined which covariables would predict failure (α=0.05).

The results showed that from a total of 235 teeth, the PEB rate for RI (6.1%) was significantly lower (p<0.05) than FV (17.9%; OR 3.0, 95%CI 1.07, 8.48) and FV+etch (17.3%; OR 3.1, 95%CI 1.13, 8.73) and the DMFT index >3, brown opacities, cusp involvement, and age between 6–8 years predicted PEB (p<0.05).

Hence, it was concluded that "resin infiltration positively influenced the structural integrity maintenance of MIH-affected teeth by decreasing the risk of enamel breakdown over18 months follow-up."

Resin infiltration proved to be a more efficacious intervention to maintain the structural integrity of MIH-affected teeth than fluoride varnish therapies, they further added.

Article Source : Journal of Dentistry

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Dr. Nandita Mohan

Dr. Nandita Mohan is a practicing pediatric dentist with more than 5 years of clinical work experience. Along with this, she is equally interested in keeping herself up to date about the latest developments in the field of medicine and dentistry which is the driving force for her to be in association with Medical Dialogues. She also has her name attached with many publications; both national and international. She has pursued her BDS from Rajiv Gandhi University of Health Sciences, Bangalore and later went to enter her dream specialty (MDS) in the Department of Pedodontics and Preventive Dentistry from Pt. B.D. Sharma University of Health Sciences. Through all the years of experience, her core interest in learning something new has never stopped. She can be contacted at editorial@medicaldialogues.in. Contact no. 011-43720751

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Resin infiltration effective for maintaining structural integrity of MIH-affected teeth

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