Pécora J D, Sousa Neto M D, Santos T C, Saquy P C
Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo.
Braz Dent J. 1991;2(1):69-73.
The purpose of this investigation was to determine the prevalence of radicular grooves in 500 central and 421 lateral extracted maxillary incisors. Radicular grooves were present in 2.0% of the central and 2.6% of the lateral maxillary incisors. The majority of radicular grooves in central maxillary incisors were detected on the buccal root surface (1.6%), and fewer on the lingual root surface (0.4%). In lateral maxillary incisors, the radicular grooves were always observed on the lingual surface.
本研究的目的是确定500颗拔除的上颌中切牙和421颗上颌侧切牙中根管沟的患病率。上颌中切牙中根管沟的患病率为2.0%，上颌侧切牙为2.6%。上颌中切牙的根管沟大多出现在颊侧牙根表面（1.6%），舌侧牙根表面较少（0.4%）。在上颌侧切牙中，根管沟总是出现在舌侧表面。
