Experimental Study and Clinical Observation of Hyaluronic Acid Gel Combined with Nd:YAG Laser on Sensitivity of Tooth Root of Elderly Patients with Periodontitis

doi:10.13701/j.cnki.kqyxyj.2021.01.009

Abstract

Abstract: Objective: To observe and evaluate the clinical effect of hyaluronic acid gel combined with Nd:YAG laser in the treatment of tooth root sensitivity complications after periodontal initial therapy in elderly patients. Methods: 24 complete caries-free premolars of elderly patients due to chronic periodontitis were selected, and randomly divided into 4 groups. The tooth roots were treated by using normal saline, hyaluronic acid gel, Nd: YAG laser, and hyaluronic acid gel combined with Nd: YAG laser, respectively. The morphology of all 24 specimens was observed under scanning electron microscope. 60 elderly patients with tooth root sensitivity complications after periodontal initial therapy were randomly divided into 3 groups, which were hyaluronic acid gel group (20 cases, 66 teeth), Nd: YAG laser group (20 cases, 81 teeth), and the combined group (20 cases, 102 teeth). The hyaluronic acid gel group was treated with hyaluronic acid gel alone, the Nd: YAG laser group was treated with Nd:YAG laser irradiation, and the combined group was treated with hyaluronic acid gel combined with the laster irradiation. The effects were evaluated by Schiff cold air sensitivity index. Results: Scanning electron microscopy showed that hyaluronic acid gel, Nd:YAG laser irradiation, and hyaluronic acid gel combined with Nd:YAG laser irradiation can seal the dentin tubules, but hyaluronic acid gel combined with Nd:YAG laser had the best effect. The clinical observation results showed that the effective rates of hyaluronic acid gel group, the Nd:YAG laser group, and the combined group were 69.70%, 83.95%, and 93.13% (P<0.05). Conclusion: Hyaluronic acid gel combined with Nd:YAG laser irradiation has better clinical effects in the treatment of tooth root sensitivity complications after periodontal initial therapy in elderly patients.

Key words: periodontitis, tooth root sensitivity, hyaluronic acid gel, Nd:YAG laser

ZHOU Yue, SHEN Yuqin. Experimental Study and Clinical Observation of Hyaluronic Acid Gel Combined with Nd:YAG Laser on Sensitivity of Tooth Root of Elderly Patients with Periodontitis[J]. Journal of Oral Science Research, 2021, 37(1): 39-42.

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