Neodymiun:Yttrium Aluminum Garnet Laser in Caries Prevention of Primary Teeth: One-year Follow-up

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
Fundação de Amparo à Pesquisa do Estado de São Paulo
Information provided by (Responsible Party):
Regina Guenka Palma Dibb, University of Sao Paulo
ClinicalTrials.gov Identifier:
NCT01727804
First received: November 8, 2012
Last updated: November 12, 2012
Last verified: August 2012
  Purpose

The aim of this controlled clinical study was to evaluate the Nd:YAG laser, with or without fluoride, in prevention of occlusal caries in the primary dentition.


Condition Intervention
Caries in Occlusal Surface of Primary and Permanent Detition
Other: Laser in caries prevention

Study Type: Interventional
Study Design: Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Prevention
Official Title: Clinical Effect of Neodymiun:Yttrium Aluminum Garnet Laser in Occlusal Caries Prevention of Primary Teeth: One Year Follow up.

Resource links provided by NLM:


Further study details as provided by University of Sao Paulo:

Primary Outcome Measures:
  • Clinical evaluation of the presence of dental caries on tooth occlusal surface [ Time Frame: up to 1 year ] [ Designated as safety issue: No ]

    The clinical evaluation of the volunteers was performed 1, 3, 6, 9 and 12 months after treatment application by three different calibrated appraisers who were blind to the performed treatment.

    The clinical and radiographic assessments of the caries lesions were recorded using the clinical criteria described by Chu et al.,(2009), which was adapted from Ekstrand's visual scoring system, and the sealant evaluation was adapted from Beiruti et al.,(2006)

    The units of measure are: The scores obtained were considered as the following: V0, V1 and/or R0 represented sound teeth(with no need for restorative treatment), which were assigned a score of 0; V3, V4 and R1 to R3 represented decayed teeth(with a need for restorative treatment), which were assigned a score of 1. Considering the sealant scores, if the tooth evaluated presented with a caries lesion, it was considered to be a decayed tooth(with a need for treatment), regardless the sealant retention status.



Estimated Enrollment: 40
Study Start Date: August 2009
Primary Completion Date: November 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Laser Other: Laser in caries prevention

Detailed Description:

The aim of this controlled clinical study was to evaluate the Neodymiun:yttrium aluminum garnet laser, with or without fluoride, in prevention of occlusal caries in the primary dentition. High caries risk children (7.6±1.4 years) were selected for this study and received the following treatments: G1-1st molar was negative control, and the 2nd molar received a resin sealant; G2-1st molar was negative control, and the 2nd molar received laser irradiation (100 milliJoule, 5 Hertz - 0.5 Watts); G3-1st molar received only fluoride gel and the 2nd molar received fluoride gel + laser irradiation; G4-1st molar received only fluoride varnish and the 2nd molar received fluoride varnish + laser irradiation. Patients were followed up to 12 months to evaluate the formation of white-spot lesions and/or caries cavities by three calibrated observers.

  Eligibility

Ages Eligible for Study:   7 Years to 8 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • subject age of 7 to 8 years, high caries risk (evaluated by oral hygiene, dietary habits and fluoride exposure, according to Kidd 2011), with the first permanent molars without caries cavities, restorations, enamel defects, morphological anomalies and/or signals of fluorosis. Subjects had to be willing to comply with all study procedures and protocols. They had to be residents of Ribeirão Preto or other nearby local communities with the same water fluoridation pattern (to eliminate water fluoridation as a potential con- founding variable). Subjects had to be healthy and the parents or the child legal guardian need to be willing to sign the "Authorization and informed consent for research" form. There were no gender restrictions.

Exclusion Criteria:

  • suffering from systemic diseases, had a significant past or medical history with conditions that may affect oral health (i.e., diabetes, HIV, heart conditions that require antibiotic prophylaxis), were taking medications that may affect the oral flora or salivary flow (e.g., antibiotic use in the past three months, drugs associated with dry mouth / xerostomia), had in-office fluoride treatment within the last three months prior to being enrolled in the study, or were not willing to stop the use of any mouth rinse during the duration of the study.
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01727804

Locations
Brazil
School of Dentistry of Ribeirão Preto
Ribeirão Preto, São Paulo, Brazil, 14040-904
Sponsors and Collaborators
University of Sao Paulo
Fundação de Amparo à Pesquisa do Estado de São Paulo
  More Information

No publications provided

Responsible Party: Regina Guenka Palma Dibb, DDS, MS, Phd, Associated Professor, University of Sao Paulo
ClinicalTrials.gov Identifier: NCT01727804     History of Changes
Other Study ID Numbers: Raucci-Neto
Study First Received: November 8, 2012
Last Updated: November 12, 2012
Health Authority: Brazil: Ethics Committee

ClinicalTrials.gov processed this record on August 01, 2014