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Protective effect of green tea on dentin erosion and abrasion
Kato, Melissa Thiemi; Magalhães, Ana Carolina; Rios, Daniela; Hannas, Angélica Reis; Attin, Thomas; Buzalaf, Marília Afonso Rabelo.
  • Kato, Melissa Thiemi; University of São Paulo. Bauru School of Dentistry. Bauru. BR
  • Magalhães, Ana Carolina; University of São Paulo. Bauru School of Dentistry. Department of Biological Sciences. Bauru. BR
  • Rios, Daniela; University of São Paulo. Bauru School of Dentistry. Department of Pediatric Dentistry, Orthodontics and Community Health. Bauru. BR
  • Hannas, Angélica Reis; University of São Paulo. Bauru School of Dentistry. Department of Biological Sciences. Bauru. BR
  • Attin, Thomas; University of Zürich. CH
  • Buzalaf, Marília Afonso Rabelo; University of São Paulo. Bauru School of Dentistry. Department of Biological Sciences. Bauru. BR
J. appl. oral sci ; 17(6): 560-564, Nov.-Dec. 2009. tab
Article in English | LILACS | ID: lil-534419
ABSTRACT

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.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Tea / Tooth Abrasion / Tooth Erosion / Protective Agents Type of study: Controlled clinical trial Limits: Animals / Humans Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2009 Type: Article / Project document Affiliation country: Brazil / Switzerland Institution/Affiliation country: University of São Paulo/BR / University of Zürich/CH

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Full text: Available Index: LILACS (Americas) Main subject: Tea / Tooth Abrasion / Tooth Erosion / Protective Agents Type of study: Controlled clinical trial Limits: Animals / Humans Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2009 Type: Article / Project document Affiliation country: Brazil / Switzerland Institution/Affiliation country: University of São Paulo/BR / University of Zürich/CH