Análise clínica da correlação entre interferência oclusal, alinhamento dental e largura da mucosa ceratinizada com a ocorrência de recessão gengival

Abstract

The many factors in the development of gingival recessions make the diagnosis and the prognosis treatment of them difficult. This study checks clinically if gingival recessions are related to the existence of parafunctional dental contacts, to the width of the keratinized mucous and to dental alignment alteration. Among 23 adults of both sexes, 660 teeth divided by groups (molars, premolars, canines and incisors) were clinically examined according to the following parameter: to the existence of parafunctional dental contacts in a maximal habitual intercuspation (MHI), work and no work, bilaterally and in a centric relation; width of the keratinized mucous measured by a milimetric probe; and the dental alignment categorization as normal or by buccal. The results were analyzed by means of frequency distribution. Gingival recessions were found in 94 teeth (14, 2%), in which 71, 3% of them were in posterior teeth and 28, 7% in anterior teeth. The first superior premolars showed the most gingival recession incidence (25, 5%). Among the gingival recession teeth, 77, 6% demonstrated the width of the keratinized mucous < 2,0mm and 46, 8% were to buccal. The teeth that exhibited a gingival recession had at least a parafunctional contact were in 85%. It can be concluded that the gingival recession is associated to parafunctional contact occurrence and to the width of the keratinized mucous and dental alignment.