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Fig. 1 | BMC Gastroenterology

Fig. 1

From: Oral soft tissue disorders are associated with gastroesophageal reflux disease: retrospective study

Fig. 1

Oral examination comparisons among the GERD patients and the two control groups. a Salivary flow volume; Saxon test. The GERD patients had significantly lower levels than older and younger control groups. b RSST; Swallowing frequency (times/30 s). The GERD patients had significantly lower levels that the older and younger control groups. c RSST; Time to first swallow (s). The GERD patients had significantly longer values than the older and younger control groups. d DMF indices. The GERD patients had significantly higher levels than the younger controls, but lower levels than the older controls. e PMA gingival indexes. The GERD patients had significantly higher levels than the younger and older control groups. f OHI-S. The GERD patients had significantly higher levels than the younger and older control groups. *P values of Wilcoxon rank-sum test were judged as significant by P < 0.05

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