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Full-Text Articles in Dental Materials
Stability Of The Miniscrew-Bone Interface: Reverse Torque Values In Rabbits, Daniel John Drye
Stability Of The Miniscrew-Bone Interface: Reverse Torque Values In Rabbits, Daniel John Drye
Loma Linda University Electronic Theses, Dissertations & Projects
Introduction: Miniscrews are used in orthodontics as practical temporary anchorage devices (TAD's). The purpose of this animal study was to measure reverse torque values for Absoanchor 1.2 mm and Micerium 1.5mm miniscrews at 0, 2, and 12 weeks under loaded and unloaded conditions.
Methods: Ninety-six miniscrews were placed in the femora of twelve rabbits and allowed to heal for either two or twelve weeks. Half of the fixtures were loaded immediately with NiTi open coil springs producing a force of 150-200g and the other half served as unloaded controls. For each of the healing times, two and twelve weeks, …
Histological Comparison Of White And Gray Mta In Repair Of Furcation Perforations, Miguel Elias Mego
Histological Comparison Of White And Gray Mta In Repair Of Furcation Perforations, Miguel Elias Mego
Loma Linda University Electronic Theses, Dissertations & Projects
Mineral trioxide aggregate (MTA) has been shown to promote regeneration of the periodontal apparatus when used as a repair material in furcation perforations. Two variations of MTA (Gray and White) have been introduced to the dental market. The purpose of this study was to histologically compare the in vivo response to immediate furcation perforation repair using gray or white MTA in beagle dogs.
Under general anesthesia, non-surgical root canal therapy and furcal perforations were performed on sixteen mandibular premolars of eight 2-year old beagle dogs. The perforations were immediately repaired with either white (n=8) or gray (n=8) MTA. The animals …