第二次全国口腔颌面——头颈肿瘤内科综合治疗研讨会召开

经中华口腔医学会口腔颌面外科专业委员会及全国医学继续教育委员会批准，由全国口腔颌面-头颈肿瘤内科协作组（筹）主办、安徽省口腔医学会和安徽省省立医院承办的“第二次全国口腔颌面-头颈肿瘤内科综合治疗研讨会暨口腔颌面肿瘤综合序列治疗学习班”于2006年4月24～26日在安徽省黄山市召开。本次会议特别邀请了中国工程院邱蔚六院士、四川大学华西口腔医学院王大章教授、第四军医大学口腔医学院刘宝林教授、北京大学口腔医学院俞光岩教授等国内著名的口腔颌面外科专家到会。来自全国各地50余名口腔颌面外科界的同仁参加了本次研讨会。     

第二次全国口腔颌面-头颈肿瘤内科综合治疗研讨会会议纪要

经中华口腔医学会口腔颌面外科专业委员会及全国医学继续教育委员会批准，由全国口腔颌面一头颈肿瘤内科协作组（筹）主办、安徽省口腔医学会和安徽省省立医院承办的“第二次全国口腔颌面一头颈肿瘤内科综合治疗研讨会暨口腔颌面肿瘤综合序列治疗学习班”于2006年4月24-26日在安徽省黄山市召开。本次会议特别邀请了中国工程院邱蔚六院士、四川大学华西口腔医学院王大章教授、第四军医大学口腔医学院刘宝林教授、北京大学口腔医学院俞光岩教授等国内著名的口腔颌面外科专家到会。来自全国各地50余名口腔颌面外科界的同仁参加了本次研讨会。     

全国第三次口腔颌面-头颈肿瘤综合治疗学术研讨会暨中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组成立大会在徐州召开

经中华口腔医学会口腔颌面外科专业委员会批准，由中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组主办、东南大学医学院附属徐州医院承办的“全国第三次口腔颌面-头颈肿瘤综合治疗学术研讨会暨中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组成立大会”于2007年4月20—23日在江苏省徐州市召开。 86篇，其中主题     

第三次全国口腔颌面-头颈肿瘤综合治疗研讨会暨中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组成立大会会议纪要

经中华口腔医学会口腔颌面外科专业委员会批准。由全国口腔颌面-头颈肿瘤内科协作组主办、东南大学医学院附属徐州医院承办的“第三次全国口腔颌面-头颈肿瘤内科综合治疗研讨会暨中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组成立大会”于2007年4月20—23日在江苏省徐州市召开。来自全国各地70多个单位的143名代表和徐州市及各区县的150余名代表参加了本次研讨会。大会共收到论文86篇，内容涉及口腔颌面肿瘤的化疗、同期放化疗、放射粒子植入、生物治疗、热疗、术后修复重建、介入治疗、肿瘤基础研究等诸多方面。     

第八次全国口腔颌面-头颈肿瘤学术研讨会会议纪要

由口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科学组联合口腔病理学专业委员会和上海市放射学会神经头颈学组共同主办,重庆医科大学口腔医学院承办的＂第八次全国口腔颌面-头颈肿瘤学术研讨会暨国家级继续教育项目-口腔颌面肿瘤的综合序列治疗＂,于2014年6月13-15日在重庆市举行。本次会议特别邀请台湾阳明医学院牙医学系主任张国威教授及国内口腔颌面-头颈肿瘤学术领域多位知名专家莅临会议做专题报告。     

第4次全国口腔颌面-头颈肿瘤内科学术会议在广州举行

由中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组主办,中山大学孙逸仙纪念医院、第1附属医院共同承办的“第4次全国口腔颌面-头颈肿瘤内科学术研讨会暨口腔颌面肿瘤综合序列治疗学习班”于2008年11月6～8日在广州召开。会议特邀上海交通大学口腔医学院邱蔚六院士、四川大学华西口腔医学院王大章教授等国内著名口腔颌面外科和肿瘤治疗专家到会指导。     

第五次全国口腔颌面-头颈肿瘤内科综合治疗研讨会会议纪要

由中华口腔医学会口腔颌面外科专业委员会口腔颌面-头颈肿瘤内科协作组主办、中国人民解放军总医院承办的＂第五次全国口腔颌面-头颈肿瘤内科综合治疗研讨会暨口腔颌面肿瘤综合序列治疗学习班＂于2010年10月15-17日在北京召开。     

第六次全国口腔颌面-头颈肿瘤内科学术研讨会暨口腔颌面肿瘤综合序列治疗高级研修班第一轮会议通知

经中华口腔医学会口腔颌面外科专业委员会批准,口腔颌面-头颈肿瘤内科学组主办、中南大学口腔医学院与中南大学湘雅医院承办的＂第六次全国口腔颌面-头颈肿瘤内科学术研讨会暨国家级继续教育项目—口腔颌面肿瘤的综合序列治疗（2011-08-02-039）＂将于2011年10月20-23日在湖南长沙举行,届时将邀请邱蔚六院士、王大章教授、刘宝林教授等知名专家、学者到会作主题报告。参会人员将获得I类继续教育学分10分。现将会议有关事项通知如下。     

第4次全国口腔颌面—头颈肿瘤内科学术会议在广州举行

<正>由中华口腔医学会口腔颌面外科专业委员会口腔颌面—头颈肿瘤内科协作组主办,中山大学孙逸仙纪念医院、第1附属医院共同承办的"第4次全国口腔颌面—头颈肿瘤内科学术研讨会暨口腔颌面肿瘤综合序列治疗学习班"于2008年11月6～8日在广州召开。会议特邀上海交通大学口腔医学院邱蔚六院士、四川大学华西口腔医学院王大章教授等国内著名口腔颌面外科和肿瘤治疗专家到会指导。来自全国18个省、市、自治区(包括台湾地区)40余家单位的200多名代表(广东地区代表100余名、其他地区代表84名)参加了会议。会议收到论文116篇,日本昭和大学口腔颌面外科的新谷悟教授应邀做专题发言。     

第一届全国口腔颌面部肿瘤学术会议纪要

20 0 1年 10月 2 1～ 2 4日 ,由中华口腔医学会口腔颌面外科专业委员会主办 ,中国抗癌协会头颈肿瘤外科专业委员会协办 ,四川大学华西口腔医学院承办的第一届全国口腔颌面部肿瘤学术会议在成都召开。来自全国各地的专家、代表 2 5 4人参加了本次大会。开幕式上 ,中华口腔医学会会长张震康教授代表中华口腔医学会向大会表示祝贺。口腔颌面外科专业委员会主任委员邱蔚六教授代表专委会向大会表示祝贺 ,并宣布中华口腔医学会口腔颌面外科专业委员会口腔颌面肿瘤学组成立 ,四川大学华西口腔医学院温玉明教授当选为学组组长。口腔颌面外科专委会…     

Effects of the natural compound,oxyresveratrol, on the growth of Streptococcus mutans,and on biofilm formation,acid production,and virulence gene expression

Streptococcus mutans is one of the major pathogens of dental caries. Oxyresveratrol, a natural compound found in plants, exerts inhibitory effects on many bacterial species but its effect on S. mutans is unknown. The objective of this study was to clarify the antibacterial effect of oxyresveratrol on S. mutans, including effects on basic viability, acidogenicity, acidurity, and extracellular polysaccharide synthesis. The expression of nine genes that encode virulence and protective factors in S. mutans was measured by qRT-PCR. Oxyresveratrol showed a dose-dependent inhibitory effect on survival of S. mutans. At 250 μg ml⁻¹, oxyresveratrol reduced the S. mutans survival rate, inhibited synthesis of water-insoluble glucans, compromised biofilm formation, and significantly down-regulated the expression of glucosyltransferase-I (gtfB) and glucosyltransferase-SI (gtfC). However, the enzymatic activity of lactate dehydrogenase protein was increased and the expression of lactate dehydrogenase (ldh) and ATP synthase subunit beta (atpD) genes were also up-regulated. Besides, glucosyltransferase S (gtfD) up-regulation indicated that water-soluble glucan synthesis was promoted. The vicR, liaR, and comDE genes, which exert a self-protective function in response to external stress, were also up-regulated. In conclusion, oxyresveratrol inhibited the growth of S. mutans and also reduced biofilm formation, acid production, and synthesis of water-insoluble glucans by this organism. In addition, oxyresveratrol also activated a series of S. mutans self-protection mechanisms.     

Dental hygienists''influence on the patients''knowledge, motivation, self-care, and perception of change

The purpose of this study was to assess the success of the dental hygienist in the dental health education of dental patients in general dental practice. Special emphasis was laid on health education in the field of periodontics. The answers on a questionnaire of 159 dental patients who visited a dental hygienist were compared with the answers of 302 dental patients who had never visited a dental hygienist. The comparison was done by means of t-test and regression analysis on specially developed scales with regard to knowledge, motivation, self-care, and perception of change. On all scales the dental patients who visited a dental hygienist scored better. This difference remained when social demographic variables and the dentist's influence were taken into account. This indicates that the dental hygienist is successful in the behavioral aspect of her work.     

Comparison of coconut water, propolis, HBSS, and milk on PDL cell survival

Coconut water is biologically pure and sterile, with a rich presence of amino acids, proteins, vitamins, and minerals. The purpose of this study was to use a collagenase-dispase assay to investigate the potential of a new storage medium, coconut water, in comparison with propolis, Hank's balanced salt solution (HBSS), and milk in maintaining viable periodontal ligament (PDL) cells on simulated avulsed teeth. Seventy freshly extracted human teeth were divided into 4 experimental groups and 2 control groups. The positive and negative controls corresponded to 0-minute and 8-hour dry times, respectively. The experimental teeth were stored dry for 30 minutes and then immersed in 1 of the 4 media (coconut water, propolis, HBSS, and milk). The teeth were then treated with dispase grade II and collagenase for 30 minutes. The number of viable PDL cells was counted with a hemocytometer and analyzed. Statistical analysis showed that coconut water kept significantly more PDL cells viable compared with propolis, HBSS, or milk. Coconut water can be used as a superior transport medium for avulsed teeth.     

Physical, morphological, and micro-Raman chemical studies on bleaching strip effects on enamel, coronal dentin, and root dentin

OBJECTIVE: This study examined the effects of elevated-concentration hydrogen peroxide tooth whitening strips on the surface and subsurface integrity of enamel, coronal dentin, and root dentin. METHODOLOGY: Sound human teeth were ground and polished to prepare a uniform substrate for bleaching. A cycling regimen included exposures to saliva, bleaching treatments, and fluoridated toothpaste. Bleaching was carried out with plastic strips containing hydrogen peroxide gel at 11.7 and 14% concentrations. A non-bleached group served as a control. Bleaching times measured up to 45 hours. Physical properties of tooth surfaces were assessed by microhardness, while surface morphological properties of teeth were examined by profilometry, surface Confocal Laser Scanning Microscopy (CLSM), and Variable Pressure Scanning Electron Microscopy (VP-SEM). Subsurface histomorphological effects on teeth were assessed by CLSM. Lastly, the influences of bleaching on tooth micro-chemical composition was studied by micro-Raman spectroscopy using a unique spectrometer in line, coupled to the CLSM via glass fiber. RESULTS: Surface microhardness, profilometry, CLSM, and VP-SEM measures showed enamel and root dentin surfaces were unchanged with bleaching. CLSM micromorphological assessments demonstrated normal histology for bleached teeth on surface and subsurface enamel, DEJ, and dentin. Raman spectroscopy demonstrated no effects of bleaching treatments on the microchemical mineral composition of enamel and dentin. Bleaching treatments were observed to reduce background luminescence of enamel, DEJ, and dentin. CONCLUSION: These results confirm that whitening strips delivering controlled doses of hydrogen peroxide at 11.7 and 14% concentrations do not produce changes in surface/subsurface histomorphology, surface microhardness, or micro-chemical mineral composition of teeth. The effects of bleaches on tooth luminescence recorded in micro-Raman spectroscopy may serve as an internal signature to bleaching effects and warrant further study.