Effect of meloxicam on bone healing around titanium implants / Efeito do meloxicam sobre o reparo osseo ao redor de implantes de titanio

AUTOR(ES)

Fernanda Vieira Ribeiro

DATA DE PUBLICAÇÃO

2007

RESUMO

The aim of this study was to investigate the effect of a selective cyclooxygenase-2 inhibitor, meloxicam, on bone healing around titanium implants in rats. Thirty-one adult male Wistar rats were included in this study and one screw-shaped titanium implant was inserted in the tibiae. The animals were randomly assigned to one of the following groups, for daily subcutaneous injections: Control (n=14): 1 ml/kg of saline solution and Test (n=17): 3 mg/kg of meloxicam, each administered daily for 60 days. After the treatment, the animals were sacrificed and undecalcified sections obtained. Bone-to-implant contact (BIC) and bone filling within the limits of of implant threads (BF) and percentage of bone in a 500µm-wide zone lateral to the implant (BL) were obtained and arranged for cortical (zone A) and cancellous (zone B) bone regions. The data were tested by the Mann-Whitney test (a= 5%). Intergroup comparisons demonstrated that meloxicam significantly reduced bone healing around implants. For zone A, significant differences were observed regarding BIC (47.01 ± 10.48 A; 35.93 ± 12.25 B), BF (86.42 ± 3.66 A; 61.58 ± 12.09 B) and BL (96.86 ± 0.96 A; 91.06 ± 3.05 B) for control and test groups, respectively (p<0.05). For zone B, data analysis also showed significant differences among the groups for BIC (30.76 ± 13.80 A; 16.86 ± 11.48 B), BF (34.83 ± 8.18 A; 25.66 ± 9.16 B) and BL (15.76 ± 7.05 A; 7.73 ± 4.61 B) for control and test groups, respectively (p<0.05). In conclusion, within the limits of the present study, 3 mg/kg/day of meloxicam may negatively influence bone healing in the cortical and cancellous bone around titanium implants inserted in rats after continuous administration

ASSUNTO(S)

dental implants agentes antiinflamatorios cicloxigenases implantes dentarios bone regeneration anti-inflammatory agents cyclooxygenases

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