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- Title
Beta tricalcium phosphate, either alone or in combination with antimicrobial photodynamic therapy or doxycycline, prevents medication-related osteonecrosis of the jaw.
- Authors
Hadad, Henrique; Kawamata de Jesus, Laís; Piquera Santos, Ana Flávia; Rinaldi Matheus, Henrique; de Souza Rodrigues, Letícia Gabriella; Paolo Poli, Pier; Marcantonio Junior, Elcio; Pozzi Semeghini Guastaldi, Fernando; Maiorana, Carlo; Milanezi de Almeida, Juliano; Okamoto, Roberta; Ávila Souza, Francisley
- Abstract
Surgical trauma in those under a prolonged use of bisphosphonates, can lead to mediation-related osteonecrosis of the jaw (MRONJ). This study aimed to evaluate the preventive therapies for MRONJ. Following four cycles of zoledronic acid administration, Wistar rats had their molar extracted, and were organized into nine treatment groups: negative control group (NCG), treated with saline solution and blood-clot in the alveolus; positive control group (PCG), with blood-clot in the alveolus; BG, β-tricalcium phosphate-based biomaterial; DG, 10% doxycycline gel; aG, antimicrobial photodynamic therapy; and DBG, aBG, aDG, and aDBG, using combination therapy. After 28 days, the lowest bone volume (BV/TV) was reported in PCG (42.17% ± 2.65), and the highest in aDBG (69.85% ± 6.25) (p < 0.05). The higher values of daily mineral apposition rate were recorded in aDBG (2.64 ± 0.48) and DBG (2.30 ± 0.37) (p < 0.001). Moreover, aDBG presented with the highest neoformed bone area (82.44% ± 2.69) (p < 0.05). Non-vital bone was reported only in the PCG (37.94 ± 18.70%). Owing to the key role of the biomaterial, the combination approach (aDBG) was the most effective in preventing MRONJ following tooth extraction.
- Subjects
DOXYCYCLINE; PHOTODYNAMIC therapy; OSTEONECROSIS; SALINE solutions; JAWS; ZOLEDRONIC acid; TETRACYCLINES
- Publication
Scientific Reports, 2022, Vol 12, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-022-20128-4