Possibilities and perspectives of human typologies taking into account in dentistry

Introduction: Such sciences as differential physiology, differential psychology, differential anatomy and chemistry are developed greatly nowadays. They deal to human typologies. The scientific works big amount concerning dentistry in this aspect allows speaking about differentiated dentistry. The aim: To assess control locus in the UMSA Ukrainian students dependently on their dominant extremity as well as to assess and to compare face asymmetry expression in the guys and girls from Egypt and Ukraine studying at different courses.

Materials and methods: 50 Ukrainian students from dental faculty different courses in the 1st series of the experiments, 18 girls and 18 guys from Egypt and Ukraine in the 2nd series. Methods: - determining the dominant extremity and control locus by survey; - computer modeling for facial expression assessment.

Results: 43 students (85%, p<0,01) independently on dominant extremity demonstrate control internal locus and only 7 people (comprising 15%, p<0,01), 6 people (90%, p<0,01) from which were left-handers and all ambidexters) - the external one. These were the 1st experimental series results. We received following results in the experiment second part. Faces of the students from Egypt, guys in bigger extent, were more asymmetrical. We were taking photos of the students and then were measuring longitudinal and transversal sizes of face right and left halves. 10 guys from Egypt (55,6%, p<0,01) and 5 girls from Ukraine (27,78%, p<0,01) were distinguished by bigger longitudinal and transversal sizes as well as looked less harmonic while coinciding the face left halves than the right ones that can be explained in part by primary usage of left side while masticating as well as left hand usage at writing (in part in the Egyptian guys).

Conclusions: We consider that our work can have significance in Maxillary-Facial and Plastic Surgery, Transplantology, Orthopedy, Prosthetic Dentistry, Neurology as well as Cosmetology and Psychology.