Molar Incisor Hypomineralization
Conditions
Keywords
Resin Infiltration, Prolonged Resin Infiltration, Microabrasion, Macroabrasion, Etch-Bleach Technique, Esthetic Improvement, Demarcated Enamel Opacities
Brief summary
Molar incisor hypomineralization (MIH) is a condition which involves enamel hypomineralization of one to four first permanent molars with or without permanent incisors. Affected permanent incisors present with demarcated enamel opacities which cause esthetic and psychological problems to patients with MIH. Microabrasion and etch-bleach surface treatment can provide easier, conservative, and biologically driven treatment approach compared to macroabrasion prior to prolonged resin infiltration for treating enamel opacities in incisors of MIH patients. The aim of this study is to evaluate the effect of microabrasion and etch-bleach surface treatment compared to macroabrasion prior to prolonged resin infiltration on esthetic appearance of permanent incisors affected with demarcated enamel opacities in MIH patients.
Detailed description
In this randomized controlled trial, patients aged 8-14 years suffering from demarcated enamel opacities in permanent incisors of MIH patients will be randomly divided into three groups according to surface treatment. The first group will receive microabrasion, the second group will receive microabrasion and etch-bleach surface treatments while the third group will receive macroabrasion surface treatment. Resin infiltration will be then applied to all groups with prolonged infiltration time for 30 minutes. Color changes will be assessed using Vita easy shade whereas oral health related quality of life will be assessed using Child Oral-Health-Related Quality of Life Questionnaire. Assessment will be done before, immediately after; and 1, 3, 6 and 12 months after treatment protocol in all groups.
Interventions
PROCEDUREResin infiltration
Etching using 15% hydrochloric acid for 2 minutes, followed by rinsing for 30 seconds then air dryness. Drying using 99% ethanol for 30 seconds. Resin infiltration for 30 minutes, then light curing for 40 seconds.
PROCEDUREmicroabrasion
Microabrasive paste will be applied to the teeth for 60 seconds using low-speed bristle cups. This procedure will be repeated ten times with rinsing and dryness after each cycle.
PROCEDUREEtch-bleach
Etching of enamel using 37% phosphoric acid for 60 seconds. After rinsing, 5% NaOCl will be applied to the etched enamel surface for 10 minute.
PROCEDUREMacroabrasion
A mild preparation of enamel using a high-speed diamond finishing stone with copious water spray.
Sponsors
Ain Shams University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
8 Years to 14 Years
Healthy volunteers
Yes
Inclusion criteria
* Cooperative healthy male and female children aged 8 to 14 years. * MIH diagnosed patients according to the criteria of European Academy of Pediatric Dentistry (EAPD) with demarcated enamel opacity that caused esthetic discomfort to them and their guardian, involving at least one maxillary or mandibular permanent incisor. * At least one-third of the affected tooth crown should be visible in the oral cavity.
Exclusion criteria
* Children with behavioral, cognitive, physical, or medical conditions that will affect or complicate the treatment. * Other developmental defects of dental enamel rather than MIH (i.e. dental fluorosis, enamel hypoplasia, amelogenesis imperfecta or Turner's tooth) * Loss of tooth structure due to post-eruptive enamel breakdown or caries. * Periodontal disease of the affected tooth. * Incisors previously subjected to trauma that might lead to loss of tooth structure or compromise the pulp vitality. * Previous preventive, restorative or orthodontic treatment on the affected tooth.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Color Change | Preoperatively - Immediately postoperatively - 1, 3, 6 12 months postoperatively | Evaluating color change of the demarcated enamel opacity in permanent incisors of MIH patients using Vita easy shade. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Oral health related quality of life | Preoperatively - Immediately Postoperatively - 1, 3, 6, 12 months postoperatively | Evaluating oral health related quality of life (OHRQoL) using Child Oral-Health-Related Quality of Life Questionnaire. |
Countries
Egypt
Outcome results
None listed