Protective effect of green tea on dentin erosion and abrasion

Autor(es)

Kato, Melissa Thiemi ; Magalhaes, Ana Carolina ; Rios, Daniela ^[1] ; Hannas, Angelica Reis ; Attin, Thomas ^[2] ; Rabelo Buzalaf, Marilia Afonso ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Bauru Sch Dent, Dept Pediat Dent Orthodont & Community Hlth, BR-17012901 Bauru, SP - Brazil

^[2] Univ Zurich, Clin Prevent Dent Periodontol & Cariol, CH-8006 Zurich - Switzerland

^[3] Univ Sao Paulo, Fac Odontol Bauru, Dept Biol Sci, Bauru Sch Dent, Discipline Biochem, BR-17012901 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Oral Science; v. 17, n. 6, p. 560-564, NOV-DEC 2009.
• Citações Web of Science: 35

Resumo

OBJECTIVE: This in situ study evaluated the protective effect of green tea on dentin erosion (ERO) and erosion-abrasion (ABR). MATERIAL AND METHODS: Ten volunteers wore intraoral palatal appliances with bovine dentin specimens subjected to ERO or ERO + toothbrushing abrasion performed immediately (ERO+I-ABR) or 30 min after erosion (ERO+30-min-ABR). During 2 experimental 5-day crossover phases, the volunteers rinsed with green tea or water (control, 1 min) between each erosive (5 min, cola drink) and abrasive challenge (30 s, toothbrushing), 4x/day. Dentin wear was measured by profilometry. RESULTS: The green tea reduced the dentin wear significantly for all conditions compared to control. ERO+I-ABR led to significantly higher wear than ERO, but it was not significantly different from ERO+30-min-ABR. ERO+30-min-ABR provoked significant higher wear than ERO, only for the placebo treatment. CONCLUSIONS: From the results of the present study, it may be concluded that green tea reduces the dentin wear under erosive/abrasive conditions. (AU)

• Processo FAPESP: 07/04209-0 - Avaliação do efeito do chá verde, inibidor natural das metaloproteinases de matriz, sobre a erosão da dentina associada ou não à abrasão: um estudo in situ
• Beneficiário: Melissa Thiemi Kato
• Modalidade de apoio: Bolsas no Brasil - Doutorado