Mrs. Ni (in her forties) has had history of sinusitis.  In the last 6 months she has had toothache in a molar on the top without obvious reason.  CT scan (Fig.1) shows that the molar labeled as #3 has a root tip infection  (>).  The sinus membrane is particularly thick (*), as compared to that on the opposite side (above the tooth #14).

One year after surgery, Mrs. Ni can chew normally without sinus infection (Fig.7 *, as compared to Fig.1).  

Return to Immediate Molar 

Xin Wei, DDS, PhD, MS 1st edition 08/28/2014, last revision 05/11/2016