. 2021 May 14;41(2 Suppl 1):S116–S123. doi: 10.14639/0392-100X-suppl.1-41-2021-12

Table II.

Sinonasal complications of dental disease and treatment classification, with treated cases since 2002.

Group	Class	Scenario	Proposed treatment	No. of patients	Rate (%)
I Preimplantological treatment complications	1a	Sinusitis following preimplantologic surgery	FESS + material removal + OAC closure	46	8.97%
II Implantological treatment complications	2a	Sinusitis with peri-implant osteitis and OAC	FESS + implant removal + OAC closure	49	9.55%
	2b	Sinusitis due to implant dislocation with OAC	FESS + implant removal + OAC closure	7	1.36%
	2c	Sinusitis due to implant dislocation without OAC	FESS + implant removal	26	5.07%
	2d	Implant dislocation without sinusite	implants removal (either endoscopic or transoral)	22	4.29%
III Classic dental disease or treatment complications	3 a	ODS with OAC	FESS + OAC closure	129	25.15%
III Classic dental disease or treatment complications	3b	ODS	FESS	234	45.61%

FESS: functional endoscopic sinus surgery; OAC: oro-antral communication; ODS: odontogenic sinusitis.