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Updated: Dec 23, 2025

Doxycycline Loaded Collagen-Chitosan Composite Scaffold for the Accelerated Healing of Diabetic Wounds
Published on: August 21, 2021
[Effects of topical application of doxycycline on avulsed permanent teeth]
Yi Liu1, Zheng Zhu, Chu-Wen Sun
1Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology. Shanghai 200011, China.
Purpose:
To evaluate the treatment effect of topical doxycycline on avulsed permanent teeth compared with normal saline.
Methods:
A total of 44 avulsed teeth from 38 patients (22 boys and 16 girls, aged 7-14 years) were recruited. Twenty-one teeth in group A were treated with doxycycline for 5 min before replantation while 23 teeth in group B were treated with saline solution. All participants were followed up for at least 12 months. The clinical outcome differences between 2 groups was evaluated by Mann-Whitney U test.
Results:
In group A, 18 teeth were found pulp necrosis, 3 with infection-related resorption, 13 with ankylosis-related resorption and 6 were extracted. In group B, 16 were diagnosed with pulp necrosis, 4 with infection-related resorption, 12 with ankylosis-related resorption and 7 were extracted. No significant differences were found between the two groups on pulp survival and periodontal healing.
Conclusions:
Compared with treatment with normal saline, avulsed permanent teeth treated with doxycycline did not show a better clinical outcome.
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