Laser Therapy and Flouride Therapy in Desensibilization Hypomineralized Teeth

Study Overview
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Brief Summary
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To investigate the efficacy of laser therapy associated with fluorotherapy in the desensibitization of hypomineralized teeth in children 8 to 12 years of age. A randomized blinded clinical trial will be conducted. The instruments used will be a questionnaire general, clinical examination, dental air syringe (evaluation of dental sensitivity) and visual analogue scale (evaluation of the magnitude of dental sensitivity). Teeth with hypomineralization molar-incisor (HMI) and the results of sensitivity and magnitude of dental pain before and after the treatments will be recorded in a clinical record. The study groups will be: treatment with laser therapy (Group 1); treatment with fluorotherapy (Group 2) and treatment with laser therapy and fluorotherapy (Group 3).

Detailed Description
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A blinded randomized clinical trial will be conducted. The study will be conducted with children attending the Pediatric Dentistry Clinic of the Florence Institute's undergraduate course, in São Luís, Maranhão, Brazil. As inclusion criteria, children from 8 to 12 years of age will be adopted, with at least one first permanent or incisive erupted incisor (with occlusal / incisal surface free of gingiva) present in the oral cavity and presenting sensitive hypomineralization lesions. Exclusion criteria will be children with enamel malformations linked to syndromes, with dental fluorosis, enamel hypoplasia or with imperfect amelogenesis, teeth with loss of structure dental and carious lesions, children in orthodontic treatment, children with cognition problems, children who used any type of analgesic / anti-inflammatory medication before treatment, children undergoing desensitizing treatment in the last 3 months, children with behavioral problems and children with occlusal problems such as tightening and bruxism. The instruments of data collection will be a general questionnaire (demographic, socioeconomic and etiological factors for HMI), clinical examination for diagnosis of HMI, dental sensitivity test with air syringe and visual analogue scale (to assess the magnitude of pain). In a clinical file will be recorded the teeth with HMI, the result of the sensitivity test and magnitude of dental pain before and after treatments. The general questionnaire will be answered by the parents / guardians. In cases of incomplete questionnaires, parents / guardians will be contacted by telephone. The diagnosis of HMI will be performed according to the criteria proposed by the European Academy of Child Dentistry (WEERHEIJM et al., 2003). The researcher will be calibrated for the application of the questionnaire and for the diagnosis of HMI lesions. The study groups will be: treatment with laser therapy (Group 1); treatment with fluorotherapy (Group 2) and treatment with laser therapy and fluorotherapy (Group 3). For the treatment of group 1, the low-power, infrared (808nm wavelength) diode laser with a power of 100mW will be used. The mode of irradiation is punctual, in contact and perpendicular to the dental surface. Three points on the crown of multiradicular teeth (mesial and distal of the cervical region and central part of the tooth lesion) and two points on the crown of unirradicular teeth (central point of the cervical region and central part of the tooth lesion) will be irradiated for 10s per point , 1J per point, with a 72-hour interval between treatment sessions. The distance between the irradiation points will be about 2 mm. The tip of the laser equipment will be positioned perpendicular to the application site. The treatment of Group 2 will be carried out with the application of fluoride varnish, with the aid of a microbrush. After the application, water will be dripped onto the applied varnish in order to promote its drying. Fluorotherapy will be performed once a week, totaling 4 sessions. Group 3 will be treated first with the laser (same specifications as Group 1), followed by application of fluoride varnish (same specifications as Group 2).

Official Title
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Effectiveness of Laser Therapy Associated With Fluoride Therapy in Hypomineralized Teeth Desensibilization: Randomized Clinical Trial

Conditions
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Hypomineralization Molar Incisor

Intervention / Treatment
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* Radiation: Laser therapy
* Procedure: Fluorotherapy
* Combination Product: Laser therapy and Fluorotherapy


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Children from 8 to 12 years of age; At least one first permanent or incisive erupted incisor (with occlusal / incisal surface free of gingiva) present in the oral cavity; Teeth presenting hypomineralization lesions sensitive. Exclusion Criteria: Children with enamel malformations linked to syndromes, with dental fluorosis, enamel hypoplasia or with imperfect amelogenesis; Teeth with loss of dental structure and carious lesion; Children in orthodontic treatment; Children with cognition problems; Children who used any type of analgesic / anti-inflammatory medication before treatment; Children undergoing desensitizing treatment in the last 3 months Children with behavioral problems; Children with occlusal problems such as tightening and bruxism.

Ages Eligible for Study
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Minimum Age: 8 Years
Maximum Age: 12 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Groups: treatment with laser therapy (Group 1); treatment with fluorotherapy (Group 2) and treatment with laser therapy and fluorotherapy (Group 3).
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Laser therapy<br>The low-power, infrared (808nm wavelength) diode laser with a power of 100mW (Therapy EC, DMC) will be used. The mode of irradiation is punctual, in contact and perpendicular to the dental surface. Three points on the crown of multiradicular teeth (mesial and distal of the cervical region and central part of the tooth lesion) and two points on the crown of unirradicular teeth (central point of the cervical region and central part of the tooth lesion) will be irradiated for 10s per point , 1J per point, with a 72-hour interval between treatment sessions. The distance between the irradiation points will be about 2 mm. The tip of the laser equipment will be positioned perpendicular to the application site. | Radiation: Laser therapy<br>* The low-power, infrared (808nm wavelength) diode laser with a power of 100mW will be used. The mode of irradiation is punctual, in contact and perpendicular to the dental surface. Three points on the crown of multiradicular teeth (mesial and distal of the cervical region and central part of the tooth lesion) and two points on the crown of unirradicular teeth (central point of the cervical region and central part of the tooth lesion) will be irradiated for 10s per point , 1J per point, with a 72-hour interval between treatment sessions. The distance between the irradiation points will be about 2 mm. The tip of the laser equipment will be positioned perpendicular to the application site.<br>|
| Active Comparator: Fluorotherapy<br>The treatment will be carried out with the application of fluoride varnish (Duraphat), with the aid of a microbrush. After the application, water will be dripped onto the applied varnish in order to promote its drying. Fluorotherapy will be performed once a week, totaling 4 sessions. | Procedure: Fluorotherapy<br>* The treatment will be carried out with the application of fluoride varnish, with the aid of a microbrush. After the application, water will be dripped onto the applied varnish in order to promote its drying. Fluorotherapy will be performed once a week, totaling 4 sessions.<br>|
| Experimental: Laser therapy and fluorotherapy<br>The teeth will be treated first with the laser (same specifications as Laser therapy), followed by application of fluoride varnish (same specifications as Fluorotherapy). | Combination Product: Laser therapy and Fluorotherapy<br>* This group will be treated first with the laser (same specifications as Laser therapy), followed by application of fluoride varnish (same specifications as Fluorotherapy).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Dental sensitivity | The dental sensitivity will be evaluated with air from the dental syringe. | 1 month after the onset of treatment | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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hypomineralization molar incisor, Child, Laser Therapy, Tooth Sensitivity