Research the shape of root the first and second molar upper at faculty Odonto Stomatology, Hai Phong University of Medicine and Pharmacy, 2018

Abstract

The study aimed to reasearch the shape of root teeth of the root of the first and second upper teeth. Research method: cross - sectional description. The study included 86 first molar teeth, the second maxillary was extracted, cleaned. Select the sample purposefully, select the teeth that meet the selection criteria for research. Research results show that: teeth 6 and 7 upper teeth mainly 3-toothed teeth. The shape of the root of the teeth and the parallel shape of the root is mainly occupied, the two forms of
pinion and pinion are less common. Height of common root teeth: Tooth 6 has a common body height of the outer tooth (3.65 ± 1.29mm) which is smaller than the height of the surface of the close face (4.38 ± 1.05mm) and afternoon. height of the trunk of the distal tooth (4.3 ± 1.17mm). Tooth 7 has a height of 3.38 ± 0.92mm outside of the outer surface of the tooth which is smaller than the height of the close face (4.07 ± 0.92mm) and the height of the common root surface (3.74 ± 0.92mm). Conclusion: The maxillary 6,7 teeth mainly have 3 roots, the roots are extended and parallel mainly, the common root body of tooth 6 is larger than that of tooth 7.