Orthodontic debonding: five-minute fallow times a possibility?

Five Minute LOI Test

Loss-on-ignition (LOI) is an important thermo-chemical property test for many foundry materials. Applications include new sands, green sand systems, chemically bonded cores and molds, sand additives, and reclaimed sands. LOI has been an important quality control measure carried out off-line. The AFS-defined LOI test uses a muffle furnace that is time consuming, often requiring three hours; a mo...

Five-Minute Awake Snoring Test for Determining CPAP Pressures (Five-Minute CPAP Test): A Pilot Study.

Objective. To develop a quick, simple, bedside test for determining continuous positive airway pressures (CPAP) for obstructive sleep apnea (OSA) patients. Study Design. Prospective case series at a tertiary medical center. Methods. The Five-Minute Awake Snoring Test for Determining CPAP (Five-Minute CPAP Test) was developed and tested. Patients wear a soft-gel nasal triangle mask while holding...

Development of an easy-debonding orthodontic adhesive using thermal heating.

We produced experimentally a new bonding material that consisted of a mixture of a base resin (4-META/MMA-TBB resin adhesive) and thermoexpandable microcapsules for safe, easy debonding. Microcapsules in the base resin would start expansion at 80 degrees C, leading to a remarkable decrease in bond strength. Stainless steel brackets were bonded to bovine permanent mandibular incisors using bondi...

Stereomicroscope analysis of enamel surface after orthodontic bracket debonding.

After orthodontic brackets debonding, the remaining resin has to be removed. The purpose of this study was to determine the most efficient method as well as to introduce a new method of composite removal. The study was carried out on a sample of 30 premolars, extracted for orthodontic purposes. Brackets had been bonded using the Ortho One Bisco composite resin. After the removal of brackets, sa...

Five-Dimensional Space-Times