Abstract: Objective: To explore the clinical effect of Compound Chamomile and Lidocaine Hydrochloride Gel in the treatment of wisdom tooth periodontitis. Methods: A total of 108 patients with wisdom tooth periodontitis treated in the Stomatological Hospital of Hebei Medical University from December 2019 to December 2020 were selected. Among them, 54 patients in the control group were treated with local irrigation plus Iodine glycerol in the blind bag. Fifty-four cases in the experimental group were treated with a local smear of Compound Chamomile and Lidocaine Hydrochloride Gel + local irrigation + the blind bag filled with Compound Chamomile and Lidocaine Hydrochloride Gel. Both groups were treated continuously and observed for 7 days. The clinical efficacy, degree of pain, sulcus bleeding index (SBI), gingival index (GI), and clinical symptom relief time of both groups were observed and compared. Results: The total effective rate of experimental group (96.67%) was significantly higher than that of control group (78.33%, P＜0.05). During the treatment, Wong-Baker facial expression score showed that 35.2% of the experimental group thought it was a little painful; 1.8% thought it was severe; 0 thought it was severe, and the number of patients in the experimental group was less than that in the control group, but there was no statistical difference (P>0.05). In the experimental group, 1.8% thought it was painless and 29.6% thought it was obvious. The number of patients in the experimental group was more than that in the control group, but there was no statistical difference (P>0.05). MCHEOPS score of the experimental group was lower than that of the control group, but there was no significant difference (P>0.05). After treatment, GI and SBI decreased in both groups (P<0.05), and periodontal index decreased significantly in the experimental group (P<0.05). The relief time of gingival swelling and pain, limited mouth opening, and disappearance time of gingival bleeding in the experimental group were significantly shorter than those in the control group (P＜0.05). Conclusion: Compound Chamomile and Lidocaine Hydrochloride Gel has a good therapeutic effect in the treatment of wisdom tooth periodontitis. It can obviously relieve inflammation, relieve pain, increase patient's comfort experience, shorten treatment time, and reduce the number of visits.

Key words: Compound Chamomile and Lidocaine Hydrochloride Gel, wisdom tooth periodontitis, sulcus bleeding index, gingival index