Saliva and dental erosion

Autor(es)

Rabelo Buzalaf, Marilia Afonso ^[1] ; Hannas, Angelicas Reis ; Kato, Melissa Thiemi

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Odontol Bauru, Dept Biol Sci, Discipline Biochem, Bauru Sch Dent, BR-17012901 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Oral Science; v. 20, n. 5, p. 493-502, SEP-OCT 2012.
• Citações Web of Science: 79

Resumo

Dental erosion is a multifactorial condition. The consideration of chemical, biological and behavioral factors is fundamental for its prevention and therapy. Among the biological factors, saliva is one of the most important parameters in the protection against erosive wear. Objective: This review discusses the role of salivary factors on the development of dental erosion. Material and Methods: A search was undertaken on MeDLINe website for papers from 1969 to 2010. The keywords used in the research were "saliva", "acquired pellicle", "salivary flow", "salivary buffering capacity" and "dental erosion". Inclusion of studies, data extraction and quality assessment were undertaken independently and in duplicate by two members of the review team. Disagreements were solved by discussion and consensus or by a third party. Results: Several characteristics and properties of saliva play an important role in dental erosion. Salivary clearance gradually eliminates the acids through swallowing and saliva presents buffering capacity causing neutralization and buffering of dietary acids. Salivary flow allows dilution of the acids. In addition, saliva is supersaturated with respect to tooth mineral, providing calcium, phosphate and fluoride necessary for remineralization after an erosive challenge. Furthermore, many proteins present in saliva and acquired pellicle play an important role in dental erosion. Conclusions: Saliva is the most important biological factor affecting the progression of dental erosion. Knowledge of its components and properties involved in this protective role can drive the development of preventive measures targeting to enhance its known beneficial effects. (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
• Processo FAPESP: 07/08389-3 - Avaliação do efeito de inibidores de metaloproteinases de matriz sobre a erosão dentária: estudos in situ / ex vivo
• Beneficiário: Marília Afonso Rabelo Buzalaf
• Modalidade de apoio: Auxílio à Pesquisa - Regular