Using chemomechanically assisted diamond bur cutting for improved efficiency
| Autor: | J. Anthony von Fraunhofer, Sharon C. Siegel |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Glycerol
Ceramics Dental Instruments medicine.medical_specialty Materials science Post hoc Mouthwashes Coolant flow engineering.material Dental High-Speed Equipment Statistics Nonparametric Surface-Active Agents Animal science Hardness Water irrigation medicine Therapeutic Irrigation General Dentistry Dental High-Speed Technique Ethanol Terpenes Water Diamond Salicylates Surgery Coolant Drug Combinations Distilled water engineering Regression Analysis Surface-active agents Revolutions per minute |
| Zdroj: | The Journal of the American Dental Association. 134:53-58 |
| ISSN: | 0002-8177 |
| DOI: | 10.14219/jada.archive.2003.0017 |
| Popis: | Background Surface active agents added to handpiece coolants enhance bur cutting rates, or CRs, through chemomechanical effects, or CMEs. The authors evaluate the effect of CMEs on long-term cutting by diamond burs. Methods The authors tested medium-grit diamonds in a high-speed handpiece under a 147.5-gram load at 350,000 revolutions per minute, with 22 milliliters per minute coolant flow consisting of distilled water or a 1:10 mouthwash/water mixture. Repeated 6-millimeter–long edge cuts were made through machinable glass ceramic bars until the CR (determined as the time to transect the bars) had decreased by more than 75 percent. The authors used six burs for each coolant and analyzed the data via one-way analysis of variance with post hoc Scheffe tests. Results CRs with water irrigation continuously decreased with the number of cuts and declined by 87 percent over eight cuts. The authors found faster CRs with CMEs; after 12 cuts, the CR was still close to 40 percent of the initial CR, compared with only 13 percent of the initial CR for water irrigation after eight cuts. These differences between CME-enhanced CRs and those found with water irrigation were statistically significant. Conclusions Diluted alcohol- and glycerol-based mouthwash/water mixtures significantly enhanced the CRs of diamond burs and prolonged their service life by more than 50 percent compared with water irrigation alone. Clinical Implications Dentists can increase bur CRs and extend bur cutting life by as much as 200 percent through the addition of diluted alcohol and glycerol mouthwash to the handpiece coolant. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|