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The Effect Of Mandibular Distraction Osteogenesis On Condylar Rotation In Rabbits, Shelton Hsu
The Effect Of Mandibular Distraction Osteogenesis On Condylar Rotation In Rabbits, Shelton Hsu
Loma Linda University Electronic Theses, Dissertations & Projects
Distraction osteogenesis (DO) is the gradual lengthening of a healing bone. This surgical technique can be applied to the jawbone to correct an asymmetry or deficiency of the mandible. DO has been added to the list of treatment options for patients with craniofacial anomalies or excessive dental crowding.
Although mandibular distraction osteogenesis has been successfully performed in many patients, the comprehensive effects on the TMJ are not fully understood. The purpose of this study is to compare the amount of rotational and positional change that occurs at the condyles when the rabbit mandible is widened at the midline and paramedian …
Comparative Methods Of Measurement To Evaluate Onplant Assisted Anchorage, Marc Reid Larson
Comparative Methods Of Measurement To Evaluate Onplant Assisted Anchorage, Marc Reid Larson
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to compare the two-dimensional cephalometric and the three-dimensional tomographic radiographic methods in their ability to assess anatomic measurements while using the Onplant anchoring device in anterior retraction cases.
The Onplant was surgically placed beneath the periosteum of the hard palate. After osseointegration the Onplant was then uncovered and attached to the first molars by means of a transpalatal bar. Conventional orthodontic treatment was then used to retract the anterior teeth after 1st premolars were extracted.
To evaluate the movement of the Onplant, a three-dimensional measuring tool was needed. Seven different measurements were made …
Patient Satisfaction And Effectiveness Of A New Resin Used To Bumper Orthodontic Brackets, Timothy B. Elison
Patient Satisfaction And Effectiveness Of A New Resin Used To Bumper Orthodontic Brackets, Timothy B. Elison
Loma Linda University Electronic Theses, Dissertations & Projects
Fear of pain is a key factor in discouraging patients from seeking orthodontic treatment, with many patients discontinuing treatment due to pain experienced in the early stages of treatment. Patients often complain of traumatized lips and buccal mucosa, which is usually caused by the brackets. Orthodontists try to minimize this pain and discomfort by using bumpering materials. Although wax is the most commonly used product, there are many bracket bumpering materials available.
The purpose of this study was to evaluate the clinical effectiveness and patient comfort/satisfaction of a new flowable resin, Ortho Shield, designed to protect the lips and …
Bond Strengths Of Three Orthodontic Adhesives For Direct And Indirect Bonding, Aaron Rondon
Bond Strengths Of Three Orthodontic Adhesives For Direct And Indirect Bonding, Aaron Rondon
Loma Linda University Electronic Theses, Dissertations & Projects
The technique of bonding orthodontic brackets utilizing a transfer tray, otherwise known as indirect bonding, is a dichotomous subject. It allows for more accurate bracket placement and reduced chair time for the patient and doctor, yet its technique sensitivity can yield bracket failures at the time of tray removal. With the recent development of 3M's Sondhi Rapid Set, an adhesive specifically designed for orthodontic bonding, the purpose of this study was to compare this fairly new indirect adhesive with 3M's Transbond XT and Reliance's Rely-A-Bond.
Two hundred and seventy freshly extracted bovine teeth were mounted in acrylic resin and divided …
Properties Of Experimentally Modified Orthodontic Adhesives: A Pilot Study, Adam Gary Lautt
Properties Of Experimentally Modified Orthodontic Adhesives: A Pilot Study, Adam Gary Lautt
Loma Linda University Electronic Theses, Dissertations & Projects
Bonded orthodontic brackets were introduced in the early 1960's and, since then, spontaneous debonding has been a constant nemesis. Consequently, many studies involving bond strength have been performed targeting brackets, adhesives, curing methods and types of teeth. The purpose of this study was to compare the properties of adhesive resins that have been experimentally modified in both the filler and the polymer.
Twenty different types of adhesives were prepared with variations in the ratios of the two different fillers (ground glass and Wollastinite fiber) and the polymer. System 1+ was used as a control since it was the original resin …