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The influence of the areas of the recession and of the adjacent papillae and the periodontal biotype on the final outcome of connective tissue graft associated or not with low intensity laser therapy (LILT) to treat gingival recession

Grant number: 14/00130-4
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2014
Effective date (End): August 31, 2015
Field of knowledge:Health Sciences - Dentistry - Periodontology
Principal Investigator:Mauro Pedrine Santamaria
Grantee:Raira Cruz Calamari
Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil


Gingival recession is a highly prevalent problem and may reach 100% of individuals over 50 years old. The presence of the recession may lead to other problems such as tooth sensitivity, esthetic complaints, biofilm accumulation, root caries, and non-carious cervical lesions. To deal with gingival recessions, several surgical techniques have been developed. The most predictable results are achieved by a coronally positioned flap (CAF), performed alone or associated with connective tissue graft (CTG). However, even when these techniques are performed, there is a great variety of results in relation to the average of root coverage (range 60-99%). One possible reason to explain this variation is the influence of the local anatomy. However, few studies have given attention to evaluating the possible influence of the local anatomy in the outcome of root coverage procedures. Thus, the aim of the present study is to assess the influence of the local anatomy in the percentage of root coverage achieved by connective tissue graft associated or not with low-intensity laser therapy for tissue bio-stimulation (LILT) to treat gingival recession defects. Forty patients presenting gingival recession will be randomly allocated in two groups: Test Group (n=20), connective tissue graft associated with the application of low-intensity laser (CTG+L), and the Control Group (n=20), connective tissue graft without the application of low-intensity laser (CTG). The parameters of plaque index (PI), gingival index (GI), gingival recession (GR), will be measured at baseline and 6 months post-operatively. The area of the gingival recession, area of the adjacent papillae at baseline, and the periodontal biotype will be used in a stepwise multivariate linear regression analysis as independent variables to test their influence on the root coverage average after six months. (AU)

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