TY  - JOUR 
T1  - Association between Pell and Gregory classification and the difficulty of the extraction of the lower third parties
JO  - RGO - Revista Gaúcha de Odontologia
A1  - SOUZA JUNIOR, Erasmo Freitas de
A1  - SILVA, Janielma Azevedo
A1  - BRITO, José Iago Pereira de
A1  - LUCENA, Eudes Euler de Souza
A1  - MORAIS, Hecio Henrique Araújo de
SN  - 1981-8637
UL  - 10.1590/1981-86372021002120190101
VL  - 69 
Y1  - 2021
PB  - Brasil 
ER  -