Sakharuk N.A., Lutskevich I.V., Elenskaya Y.R.
The peculiarities of the anatomical structure of the grinding teeth depending on sex assignment
Vitebsk State Order of Peoples’ Friendship Medical University, Vitebsk, Republic of Belarus
Vestnik VGMU. 2017;16(1):88-93.
Objectives. To identify and analyze the differences in the anatomical structure of molars of the upper and lower jaws in men and women at the age ranging from 35 to 44 years.
Material and methods. We have studied 103 extracted molars of the upper and lower jaws. The total number of men was 51 (their mean age made up 41±3 years), that of women – 52 (their mean age amounted to 39±4 years). There were no reliable differences concerning age. On the previously disinfected extracted teeth the access to the root canal mouths was created by means of the dental turbine handpiece. The tooth length, the root length, the length and direction of the root canal were measured using endodontic ruler and insruments.
Results. In men the length of the root canals of maxillar molars ranges from 9,5 mm to 13,9 mm, that of the root canals of mandibular molars is from 8,7 mm to 13,5 mm. In women the length of the root canals of maxillary molars is from 9,3 to 13,5 mm, and that of the mandibular molars root canals varies from 8,7 to 13,5 mm. No differences in the anatomical structure of the grinding teeth in men and women aged 35-44 years were found. When studying the roots of the first and the second molars of the upper jaw, additional canals were found, some of them are not visible in the radiographs. The variability of the anatomical structure characteristic of the first and the second molars was also revealed. It consists in the different number and length of roots and root canals, different degree and direction of the curvature of the roots and their respective root canals.
Conclusions. The data of the research can be used in clinical practice of a dentist in the course of the endodontic treatment.
Key words: endodontics, root canal anatomy, molars, endodontic treatment.
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Information about authors:
Sakharuk N.A. – Candidate of Medical Sciences, associate professor of the Chair of Restorative Dentistry, Vitebsk State Order of Peoples’ Friendship Medical University;
Lutskevich I.V. – the fifth-year dental student, Vitebsk State Order of Peoples’ Friendship Medical University;
Elenskaya Y.R. – Candidate of Medical Sciences, senior teacher of the Chair of Restorative Dentistry, Vitebsk State Order of Peoples’ Friendship Medical University.