Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Medicine and Health Sciences
Differences Of Sound And Morphology In Skeletal Class Iii Patients, Natthaporn Pravitharangul
Differences Of Sound And Morphology In Skeletal Class Iii Patients, Natthaporn Pravitharangul
Chulalongkorn University Theses and Dissertations (Chula ETD)
[Background] This study aimed to explore differences in vowel production using acoustic analysis in skeletal Class III and Class I Japanese participants, and to investigate the correlation between vowel sounds and cephalometric variables in skeletal Class III subjects. [Materials and Methods] Japanese males with skeletal Class III (ANB<0°) and Class I skeletal relationships (0.62°
Effects Of Local Versus Systemic Administration Of Cxcr4 Inhibitor Amd3100 On Orthodontic Tooth Movement In Rats, Narubhorn Ongprakobkul
Effects Of Local Versus Systemic Administration Of Cxcr4 Inhibitor Amd3100 On Orthodontic Tooth Movement In Rats, Narubhorn Ongprakobkul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Chemokines play pivotal roles in orthodontic tooth movement (OTM) through osteoclast-mediated bone resorption, but the underlying mechanism remains unclear. We aimed to elucidate the effects of serial local vs systemic administration of the chemokine receptor CXCR4 antagonist AMD3100 on OTM. The maxillary right first molar (M1) of rats was moved mesially using a 10 g of force nickel-titanium coil spring. The injections were performed every other day with phosphate-buffered saline as a control, whereas local and systemic animals were injected with AMD3100 at the buccal palatal mucosa adjacent to M1 and subcutaneously, respectively. OTM distance and alveolar bone were examined …
The Designs Of Miniscrew-Assisted Transpalatal Arch Affect Molar Intrusion, Ornnicha Pooktuantong
The Designs Of Miniscrew-Assisted Transpalatal Arch Affect Molar Intrusion, Ornnicha Pooktuantong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Abstract: An anterior open bite is one of the most difficult malocclusions in orthodontic treatment. For such malocclusion, orthodontic miniscrews insertion into both buccal and palatal alveolar regions has been indicated for molar intrusion, but it involves a risk of tooth root injury. To solve the problem, midpalatal miniscrew-attached extension arm (MMEA) is adopted. However, this method causes palatal tipping of the molar because intrusive loads were applied only from palatal side. Currently, transpalatal arch is added to avoid tipping movement, but it induces patient's discomfort. Hence, the objective of this study was to evaluate the loading conditions for maxillary …
Effects Of Intrauterine Intermittent Hypoxia On Skeletal Muscle In Offspring Rats, Wirongrong Wongkitikamjorn
Effects Of Intrauterine Intermittent Hypoxia On Skeletal Muscle In Offspring Rats, Wirongrong Wongkitikamjorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Gestational intermittent hypoxia (IH), a hallmark of OSA, alters the offspring's respiratory neural control and diaphragm contractile function. Thus, we aimed to investigate the effects of gestational IH on the muscle development and metabolism of geniohyoid (GH), which is innervated by the respiratory-related hypoglossal nerve and plays a role in tongue traction and suckling, in male offspring rats compared with masseter (MAS), the largest masticatory muscle. Pregnant Sprague-Dawley rats were exposed to IH (3-min periods of 4–21% O2) compared to Normoxia for 8 hours/day during gestational days 7–20. GH and MAS from 35-day-old male offspring (n = 6 /group) were …