Table 2.

Clinical findings in 33 patients with temporomandibular joint (TMJ) involvement of rheumatoid arthritis.

		Median	Percentile		n
			25th	75th
Impact of TMj pain
On daily activity	NRS 0–10	3	2	5	33
Quality of life	NRS 0–10	3	2	5	33
TMJ pain intensity
At rest	NRS 0–20	2	0	4	33
On maximum mouth opening	NRS 0–20	9	5	11	33
On chewing	NRS 0–20	4	2	8	33
Pain on movements	NRS 0–80	19	12	27	33
Mouth opening capacity
Pain threshold	mm	35	28	40	33
Maximum mouth opening	mm	45	35	50	33
Tenderness to digital palpation	0–8	4	2	4	33
Number of teeth	0–32	29	27	31	33
Anterior open bite	0–9	4	2	7	33

NRS: numerical rating scale to assess the impact of TMJ pain on the patients abilities to perform daily activities and on the quality of their life on a 0–10 NRS where 0 corresponded to “no impact of TMJ pain on daily activities/quality of life” and 10 corresponded to “maximum impact of the TMJ pain on daily activities/quality of life.” A NRS was also used to assess the TMJ pain intensity where 0 corresponded to “no pain” and 10 to “worst imaginable pain.”