There are different types of discourses and each of them possesses its own particular tools and wars of their linguistic implementation. These phenomena are in the focus of close attention of linguists. The relevance of the chosen study is determined by the importance of high-rate spreading scientific dental knowledge. The effect of such exchange and the quality of the scientific text depends on language skills, basic grammatical norms and communicative qualities of scientific speech. Scientists, who deliberately and consciously have mastered the normative basis of the Ukrainian language, are able to formulate his opinion correctly. It is necessary to know and to use the basic grammatical norms for the correct presentation of scientific thoughts. The purpose of this article is to search for and analyze the frequency of grammatical mistakes recorded in fragments of different genres of scientific dentistry texts: original articles, abstracts, manuals, textbooks, monographs. General scientific methods (observation, comparison, generalization, synthesis, description) and linguistic methods (functional-stylistic, semantic-stylistic, discourse analysis, etc.) were used. In this work the emphasis is placed on the importance of common rules of effective using dictionaries, and the need for an analysis of scientific dental discourse in the normative aspect has been determined. We have pointed out that the grammatical skills of doctors, their linguistic senses and skills to produce high-quality scientific texts are essential components of professional communicative competence. The article provides the details for correct use of verbal nouns and forms of active adjectives as based on our study these are the weak grammar point for young dental academic writers. The frequency of their representation in the analyzed analytical sources has been analyzed. In addition, we offer practical language recommendations that can be helpful for medical and dental professionals.