Abstract

PURPOSE
To evaluate if hydrostatic pulpal pressure plays a role in reducing microleakage.
METHODS
Uniform Class 5 preparations were accomplished on human molars with one margin on root dentin. Prepared teeth were randomly placed in one of three groups: (1) Hydrostatic pressure simulation at 20 cm pulpal pressure; (2) Hydrostatic pressure simulation but no pressure applied (positive control); and (3) Conventional microleakage method. Specimens were subjected to 24 hours methylene blue dye, sectioned, and microleakage assessed as a function of microleakage length versus entire preparation wall length using a traveling microscope.
RESULTS
Hydrostatic pressure specimens demonstrated less gingival wall microleakage than the control groups while no difference was found between occlusal preparation walls.

Authors

Roberts HW, Pashley DH

Institution

81 DS/SGD, 606 Fisher Street, Keesler AFB, MS 39534, USA. howard.roberts@us.af.mil

Source

American journal of dentistry 25:1 2012 Feb pg 49-53

MeSH

Coloring Agents
Composite Resins
Dental Cavity Preparation
Dental Enamel
Dental Leakage
Dental Materials
Dental Pulp
Dental Restoration, Permanent
Dentin
Dentin-Bonding Agents
Humans
Hydrostatic Pressure
Methylene Blue
Molar, Third
Surface Properties
Time Factors
Tooth Root

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

22558693