Table 1. The patient demographic data of all three groups.
Group 1, C-lingual retractor; group 2, antero-posterior lingual retractor with parallel tube; group 3, antero-posterior lingual retractor with distally tipped tube.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.