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Métodos Terapéuticos y Terapias MTCI
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1.
Niger J Clin Pract ; 20(6): 700-706, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28656924

RESUMEN

AIM: To compare the bleaching efficacy of sodium perborate with different activation methods on crowns discolored by two different antibiotic pastes. MATERIALS AND METHODS: Eighty-five extracted human incisors were prepared to size #30 using ProTaper rotary instruments. After chemomechanical preparation and irrigation procedures, the specimens received triple antibiotic paste (TAP, n = 40), minocycline paste (MP, n = 40), or calcium hydroxide (n = 5, control group) and coronally sealed with temporary filling material. Spectrophotometric readings were obtained on day 0-week 4. Data were analyzed with the Mann-Whitney U-test and Wilcoxon sign test (P < 0.05). Sodium perborate was then inserted into the pulp chambers of discolored teeth (four subgroups, n = 10) and activated by heat or ultrasonically using two different frequencies and times. Spectrophotometric readings were obtained on days 3-7. Data were analyzed by the Mann-Whitney U-test and Kruskal-Wallis test (P > 0.05). RESULTS: Both groups showed statistically significant coronal discoloration at each time interval (P < 0.01), but their final shades did not significantly differ between the groups (P > 0.05). Although the MP subgroups exhibited more bleaching than the TAP subgroups on days 3 and 7, the difference was not significant (P > 0.05). The bleaching results for the sodium perborate activation techniques did not significantly differ among groups (P > 0.05). CONCLUSIONS: Both antibiotic pastes induced crown discoloration that was reversible using all sodium perborate bleaching techniques.


Asunto(s)
Blanqueadores/uso terapéutico , Boratos/uso terapéutico , Calor , Blanqueamiento de Dientes/métodos , Decoloración de Dientes/terapia , Terapia por Ultrasonido , Antibacterianos/efectos adversos , Ciprofloxacina/efectos adversos , Cavidad Pulpar , Combinación de Medicamentos , Humanos , Peróxido de Hidrógeno , Incisivo , Metronidazol/efectos adversos , Minociclina/efectos adversos , Distribución Aleatoria , Decoloración de Dientes/inducido químicamente
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