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Table 5 Correlations among psychological stress, cortisol reactivity, and oxidative stress markers in TMD patients

From: Changes in salivary oxidative status, salivary cortisol, and clinical symptoms in female patients with temporomandibular disorders during occlusal splint therapy: a 3-month follow up

  

PSS

TAC

MDA

SOD

UA

TMD patients (n = 12)

PSS

,282

,076

,256

,098

SC

morning

,673*

,264

,280

,086

,305

afternoon

,216

-,252

,225

,198

,106

Diagnosis (source) pooled regardless of pain intensity

MP (n = 6)

PSS

,721*

,399

,780*

,305

SC

morning

,795*

,781*

,064

,958*+

,271

afternoon

,136

-,028

,512

,605

,226

DD(n = 6)

PSS

-,191

-,422

,131

-,260

SC

morning

,327

-,070

,563

,130

,231

afternoon

,234

-,639

,017

,003

-,049

Pain intensity pooled regardless of pathology source

Low (n = 6)

PSS

,622

-,032

,521

-,276

SC

morning

,535

,333

-,031

-,038

,267

afternoon

-,237

-,041

,297

,219

,631

High (n = 6)

PSS

,311

,258

,102

,285

SC

morning

,773*

,394

,699

,255

,469

afternoon

,731*

-,044

,543

,248

,145

  1. PSS Perceived Stress Scale, TAC Total antioxidant capacity, MDA Malondialdehyde, SOD Superoxide dismutase, UA Uric acid, SC Salivary cortisol
  2. *Note: the association was significant p < 0.05
  3. +Note: the significant association was found also between morning SC and afternoon SOD (ρ = 0.79, p < 0.05)