<Original Article>Changes in response properties of periodontai mechanoreceptors during tooth movement in rats
スポンサーリンク
概要
- 論文の詳細を見る
Using an in vitro model, we investigated the chronological effects of orthodontic force on the response properties of periodontal mechanoreceptors (PMRs) in the rat mandibular first molar (M1). Experimental tooth movement was obtained by attaching a super-elastic titanium-nickel (Ti-Ni) alloy closed coil spring from the mandibular incisors to the right M1. On 1, 2, 3, 4, 7 and 14 days after the appliances were set, three right mandibular molars were extracted and direct stimulation with von Frey hairs was applied to the PMRs remaining in the tooth sockets of right M1. Single unit discharges were recorded from the inferior alveolar nerve. Following results were obtained; (1) in the 1-, 2- and 3-day groups, the mechanical thresholds were significantly lower than those in the control group. In the 4-day group, the mechanical threshold was significantly higher than that of the 3-day group. (2) In the 3-, 4-, 7- and 14-day groups, the conduction velocities of Aβ units were lower than those in the control group. These results imply that orthodontic force applied to M1 induced functional changes in the PMRs within a few days, suggesting that the PMR seems to respond to orthodontic force at early stage of tooth movement.
- 東京医科歯科大学の論文
著者
-
SOMA Kunimichi
Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Scien
-
Toda Kazuo
Section Of Cognitive Neurobiology Department Of Maxillofacial Biology Graduate School Tokyo Medical
-
Ogawa Taichi
Maxillofacial Orthognathics Department Of Maxillofacial Reconstitution And Function Division Of Maxi
-
Soma K
Orthodontic Science Department Of Orofacial Development And Function Division Of Oral Health Science
-
Soma Kunimichi
Orthodontic Science
-
Ogawa Taichi
Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Scien
-
Ishii Noribumi
Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Scien
-
Ishii Noribumi
Orthodontic Science Department Of Orofacial Development And Function Division Of Oral Health Science
-
Ogawa Taichi/ishii
Orthodontic Science Department Of Orofacial Development And Function Division Of Oral Health Science
関連論文
- The Effect of Leptin on Rat Maxillary Alveolar Bone under Mechanical Stimuli
- Influence of Occlusal Stimuli on the Remodelling of Alveolar Bone in a Rat Hypofunction-Recovery Model
- Effect of compressive forces on extracellular matrix in rat mandibular condylar cartilage
- Influence of orthodontic forces on the distribution of proteoglycans in rat hypofunctional periodontal ligament
- The influence of occlusal stimuli on basic fibroblast growth factor expression in the periodontal healing of replanted teeth
- Immunohistochemical localization of matrix metalloproteinase 13 (MMP-13) in mouse mandibular condylar cartilage
- Localization and inhibitory effect of basic fibroblast growth factor on chondrogenesis in cultured mouse mandibular condyle
- The effects of occlusal hypofunction and its recovery on the periodontal tissues of the rat molar : ED1 immunohistochemical study
- Effects of occlusal hypofunction on the microvasculature and endothelin expression in the periodontal ligaments of rat molars
- Changes in response properties of periodontai mechanoreceptors during tooth movement in rats
- Damping capacity of orthodontic wires decreases the transmission of undesirable force : an experimental study in rats
- Comparative examination of damping capacities with laser displacement apparatus in orthodontic wires : Super-elastic Ti-Ni alloy and conventional stainless steel wires
- Occlusal Function Affects Tooth Movement Produced by Light Orthodontic Forces in Rats
- Effects of occlusal loading on alveolar bone remodeling and changes in the distribution of neuropeptides after tooth replantation in rats
- Influence of estrogen cycle on temporomandibular joint synovial membrane in rat with deviated mandible
- Finite element analysis of the first molar relationships after orthodontic treatment utilizing single-arch extraction of the upper first bicuspids
- Comparison of mechanical pain thresholds among various orofacial areas in human
- Periodontal Masseteric Reflex is Changed by Periodontal Sensory Modification during Occlusal Hypofunction in Rats
- Evaluation of Masticatory Function from the Viewpoint of Bolus Flow
- Orofacial and Sole Pain Induced by Sweet : A Case Report
- Needs and demands for orthodontic treatment in Japan : Comparison among orthodontic patients, dental students, and orthodontists
- Age-related Changes of Capillary Geometry in the Rat Gingiva
- Articular disc displacement in mandibular asymmetry patients
- An orthodontic treatment of a case with familial gingival fibromatosis
- Age-related changes and the possible adaptability of rat jaw muscle spindles : immunohistochemical and fine structural studies
- Head movements in the occlusal phase of mastication
- Duration of orthodontic force affecting initial response of nitric oxide synthase in rat periodontal ligaments
- A Mechanical Stress Model Applied to the Rat Periodontium : Using controlled magnitude and direction of orthodontic force with an absolute anchorage
- Investigation of cervical muscle mechanisms during jaw movement -Using a prototype head-jaw-neck model-
- Differential roles of periodontal mechanoreceptors of working-side posterior teeth in triggering nonworking-side temporalis activities
- Inhibitory reflex responses of masseter muscle in anterior open bite
- Influence of Occiusal Hypofunction Induced by Opposed Tooth Loss on Periodontal Mechanoreceptors in Rat Molars
- Tooth Pulpal Nociceptors in the Rat Lower Incisor, An In vitro Study
- Micro-CT evaluation of tooth, calvaria and mechanical stress-induced tooth movement in adult Runx2/Cbfa1 heterozygous knock-out mice
- Effect of Surface Modification on the Photocatalysis of Ti-Ni Alloy in Orthodontics
- Occlusal stimuli regulate interleukin-1 beta and FGF-2 expression in rat periodontal ligament
- An Impact of Masticatory Muscle Function on IL-1β and SOX9 Expression in Condyle
- Tactile threshold in hypofunctional human maxillary anterior teeth
- The aim of this Symposium(Symposium : "Orthodontics in Asia : Current Status and Future Prospects" 3rd International Congress The Japanese Orthodontic Society)