Biomechanical analysis of corticotomy
スポンサーリンク
概要
- 論文の詳細を見る
We constructed a three-dimensional finite element model of the mandible, performed mechanical analysis at the time of corticotomy in the mandibular anterior segment, and evaluated tooth displacement and the stress distribution in the mandibular anterior teeth and anterior alveolar region. Based on computed tomographic (CT) data, a three-dimensional mandibular model was produced, and, using this model, we made the following three models : a model after extraction of the mandibular first premolars (control model) and models after horizontal corticotomy 2 mm below the tooth apices of the mandibular anterior teeth followed by vertical corticotomy only on the labial side (labial model) or on both the labial and lingual sides (labiolingual model). In the control model, stress in the alveolar region below the root apex was the greatest for the central incisors and decreased distally. After corticotomy, stress decreased in the body of the bone below the corticotomy line. This tendency was more marked after bilateral vertical labiolingual corticotomy. In the region above the osteotomy line, stress was greatest in the labiolingual model, followed in order by the labial and control models. Concerning stress distribution in the 6 mandibular anterior teeth, although no marked difference was observed in the coronal labial area between the labiolingual and labial models, stress at 1/3 the distance from the root apex as well as at the root apex was elevated in the labiolingual model. Displacement on the incisal margin was marked in the labiolingual model. Our results suggest that corticotomy is useful for tooth movement because the continuity of cortical bone is interrupted, resulting in the concentration of orthodontic forces. These forces were dispersed to the surrounding bone and on the teeth, while the stress was concentrated in the surrounding alveolar region. We found that In addition, corticotomy on both the labial and lingual sides, as opposed to only on the labial side, may be more effective.
- 2013-04-00
著者
-
Nakajima Masahiro
Second Department Of Oral And Maxillofacial Surgery Osaka Dental University
-
Kakudo Kenji
Second Department Of Oral And Maxillofacial Surgery Osak Dental University
-
Ozaki Kenta
Graduate School of Dentistry (Department of Oral and Maxillofacial Surgery), Osaka Dental University
関連論文
- Cephalometric characteristics in patients with hyperplasia of the tendon and aponeurosis of masticatory muscles who have square mandibles
- Projection of lingual muscle pain to the brain
- Relationship between craniofacial morphology and occlusal plane in adult males
- Heparin-binding epidermal growth factor small interfering RNA vector restrains the invasion activity of an oral cancer cell line
- Analysis of cancer testis antigens containing BORIS in oral cancer cell lines
- Matrix metalloproteinase-3 (MMP-3) in synovial fluid with temporomandibular joint disorders
- Changes in Synovial Fluid N-Acetyl-β-Glucosaminidase Activity in the Human Temporomandibular Joint with Dysfunction
- Biomechanical analysis by the three-dimensional finite element method of stress in bone fixation plates after sagittal spliting ramus osteotomy
- Changes in Elk-1 in the mouse tongue during 4-nitroquinoline 1-oxide-induced carcinogenesis
- Evaluation of 3D-CT stereotaxic images for lateral cephalometric analysis
- Importance of head positioning in cephalometric analysis of 3 D-CT stereotaxic images
- Evaluation of 3D-CT stereotaxic imaging for frontal cephalometric analysis
- Detection of cervical lymph node micrometastases in oral squamous cell carcinoma by cytokeratin 8 mRNA with reverse transcription-polymerase chain reaction
- Keratin 19 in Benign Ameloblastomas and Malignant Ameloblastoma : Immunohistochemistry, Reverse Transcription : Polymerase Chain Reaction and Northern Blot Analysis
- Expression of early growth response-1 and -2 in human periodontal ligament fibroblasts
- Influence of vitamin A deficiency on the expression of cytokeratin in the rat sublingual gland
- Intra-articular pressure-volume index (IAPVI) for diagnosis of internal derangement of the temporomandibular joint
- P-18 Immunohistochemical Expression of E-cadherin and P-cadherin in various neoplastic conditions of stratified squamous epithelium
- Correlation of E-cadherin and α-catenin expression with differentiation of oral squamous cell carcinoma
- Long-term effects of cyclic compressive loading on three-dimensionally cultured human synovium-derived cells
- Applying random dot moire patterns to clinical orthodontics
- Enhanced micrometer caliper for analysis of plaster dental models
- Cytokeratin 19 Gene Expression in Erythroplakia
- Effects of Heparin-binding Epidermal Growth Factor on the Invasion Activity of an Oral Cancer Cell Line
- Antisense Ets-1 Transfection Restrains Oral Cancer Invasion by Reducing Matrix Metalloproteinase Activities
- Human papillomavirus DNA detection in verruciform xanthoma of the oral mucosa
- Thalamic nociceptive neurons of the cat responsive to masseter muscle afferent input
- Effect of conditioning stimulation of the fornix on the response of thalamic nociceptive neurons to tooth pulp stimulation
- Cyclic mechanical loading of human synovial cells in three-dimensional cultured tissue up-regulates gene expressions of inflammatory cytokines and matrix metalloproteinases
- Synergistic anti-tumor effect of CDDP with CRM197, a specific inhibitor of HB-EGF, in oral cancer
- Analysis of fluorescence visualization in oral precancerous and cancerous lesions
- Effect of EpCAM localization on proliferation of an oral squamous cell carcinoma cell line
- Early detection of oral precancerous and early cancerous lesions by fluorescence visualization
- Analysis of fluorescence visualization in rat tongue carcinogenesis by 4-nitroquinoline 1-oxide
- Effects of CRM197, a specific inhibitor of HB-EGF, in oral cancer
- Analysis of a cancer stem cell marker EpCAM in an oral squamous cell carcinoma cell line as monolayers and multicellular aggregates
- Biomechanical analysis of corticotomy
- Optimal cyclic compressive loading promotes differentiation of 3D-cultured pre-osteoblasts
- Analysis with CT and MR images of tendons and aponeurosis in human masseter muscle
- Influence of the ratio of α-TCP to autologous bone on bone regeneration in defects around implants
- Expression of MMP-2 and HB-EGF in keratocystic odontogenic tumors
- Effect of temporomandibular joint sensory receptors on functional jaw movements following intra-articular anesthesia during gum-chewing
- Celecoxib down-regulates mechanically induced ADAMTS-4 gene expression in 3D cultured tissue of human synovium-derived cells at lower concentration than indomethacin
- Analysis of a cancer stem cell marker EpCAM in an oral squamous cell carcinoma cell line as monolayers and multicellular aggregates
- Optimal cyclic compressive loading promotes differentiation of 3D-cultured pre-osteoblasts