Bonded resin sealant on smooth surface dental enamel--an in vitro study.

• The aim of this study was to in vitro evaluate the micro leakage of a fissure sealant on sound and demineralized enamel using thermo cycling. The effect of the sealing procedure on sound and demineralized enamel were assessed on human premolars that were divided into one Control group and two Test groups. The Control group served as a baseline reference for the subsequent test procedures. The crowns of five teeth were covered with wax leaving three separate windows on the buccal surfaces. The enamel in one window was acid-etched, in the second window demineralized, and in the third window demineralized and subsequently acid-etched. In Test group 1, containing ten teeth, a defined enamel area on the buccal surfaces was acid-etched and sealed. The sealed area and a border of sound enamel around it were subjected to the demineralizing procedure. In Test group 2, a defined enamel window of 13 teeth was demineralized and subsequently etched and sealed. The sealed area and a border of surrounding enamel were subjected to a new cycle of demineralization. The longitudinal, bucco-lingual sections were examined in polarized light. When placed on acid-etched surfaces, the resin adhered firmly to the enamel with no evidence of demineralization or enlargement of previously demineralized areas underneath the sealants.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Nyckelord

Acid Etching

Dental

Adhesiveness

Bicuspid

Bisphenol A-Glycidyl Methacrylate

chemistry

Composite Resins

chemistry

Dental Bonding

Dental Enamel

ultrastructure

Dental Leakage

classification

Humans

Microscopy

Electron

Scanning

Microscopy

Polarization

Phosphoric Acids

chemistry

Pit and Fissure Sealants

chemistry

Surface Properties

Temperature

Tooth Demineralization

pathology

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)