The choice of the evaluation method of the oral hygiene level

Abstract

The results of three different types of studies are provided: 1) statistical study directed at the revelation of the dependency between hygiene and dietary habits of the participants and their oral cavity hygiene level; 2) evaluation of the effectiveness of hygienic products in ≪whole mouth design≫ study; 3) evaluation of the effectiveness of hygienic products in ≪split mouth design≫ study. Oral hygiene status was estimated with OHI-S (Oral hygiene index-simplified, Green-Vermillion, 1964) and Turesky Quigley-Hein plaque index (TQHPI, 1970). Strong positive correlation has been found between the two plaque indices OHI-S and TQHPI. For rapid assessment survey with a great number of participants the OHI-S was considered as the most suitable because of the time and additional equipment reduction. However this index showed the low sensitivity in comparison with TQHPI on the field of revelation of effectiveness of hygienic products. In ≪split mouth design≫ study OHI-S was not informative.