BACKGROUND AND GOAL OF STUDY: 
Airway management is safer when potential problems are identified before surgery.
Temporomandibular joint disorders (TMJD) are characterized by deterioration of the articular cartilage, disc, synovium and subcondral bone. Wilke´s stages is a classification system to categorized the progressive symptoms of TJMD. These patients usually have a interincisor distance < 3,8 cm, a difficult airway (DA) predictor.
The aims were to describe the incidence of DA and trying to find others DA predictors in this subgroup of patients.
MATERIALS AND METHODS.
We design an observational study, after ethic committee approval, 120 TMJ disorder patients were included. There were recorded demographic data, airway predictors, MRI and arthroscopic finding and airway management data.
RESULTS AND DISCUSSION: 
There was no difference in demographic data; only in gender (females/males) (89,4 vs 10,6%). Cormack: I 51%, II 36%, III 9%, IV 3%; Interincisor distance: 3,4 (±1,09.
Clinical symptoms weren`t DA predictors. Neither MRI findings or arthroscopic findings could be considered DA predictors. Nevertheless, BMI, (0,01) Mallampati (0,000), Wilke`s stages (0,009), cervical mobility (0,000) and bite test (0,000) are associated with Cormack III and IV. 
All patients could be easily ventilated. One patient had needed awake fibrobroncoscopy. 60% patients were intubated in the first attempt. Fibrobroncoscopy intubation was performed only in 3% patients. As alternative intubation techniques were used BURP manoeuvre and videolaryngoscopy (McGrath©) in 13,5%.

WILKE`S STAGES
STAGE	CLINICAL
I	Clicking during opening. No pain
II	Pain tenderness, headache, Clicking and occasional locking
III	Pain, major mechanical symptoms
IV	Reduced motion, chronic symptoms
V	Decreased motion, reduced function 

CONCLUSION
According to these results, we could suggest that TMJ disorders patients have an easy airway management and can easily be intubated with conventional laryngoscopy. MRI and clinical symptoms aren´t good DA predictors.
As previous studies showed, Mallampati score, BMI, cervical mobility and bite test are good predictors. We can add, as new DA predictor, Wilke`s stages.
REFERENCE: Cook T:M” Strategies for the prevention of airway complications- a narrative review”. Anesth 2018, 73 93-111

05 / Is there any new parameter as difficult airway predictor in TMJ disorders?